10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2020

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from ____ to ____

Commission File Number: 1-36282

LA JOLLA PHARMACEUTICAL COMPANY

(Exact name of registrant as specified in its charter)

California	33-0361285
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
4747 Executive Drive, Suite 240, San Diego, CA	92121
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: (858) 207-4264

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, par value $0.0001 per share	LJPC	The Nasdaq Capital Market

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	☐	Accelerated filer	☒
Non-accelerated filer	☐	Smaller reporting company	☒
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐   No ☒

As of November 3, 2020, there were 27,381,195 shares of common stock outstanding.

TABLE OF CONTENTS

PART I. FINANCIAL INFORMATION
Item 1. Financial Statements	1
Condensed Consolidated Balance Sheets as of September 30, 2020 (Unaudited) and December 31, 2019	1
Condensed Consolidated Statements of Operations for the Three and Nine Months Ended September 30, 2020 and 2019 (Unaudited)	2
Condensed Consolidated Statements of Shareholders’ (Deficit) Equity for the Three and Nine Months Ended September 30, 2020 and 2019 (Unaudited)	3
Condensed Consolidated Statements of Cash Flows for the Three and Nine Months Ended September 30, 2020 and 2019 (Unaudited)	5
Notes to Condensed Consolidated Financial Statements (Unaudited)	6
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	17
Item 3. Quantitative and Qualitative Disclosures about Market Risk	24
Item 4. Controls and Procedures	24
PART II. OTHER INFORMATION	25
Item 1. Legal Proceedings	25
Item 1A. Risk Factors	25
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	31
Item 3. Defaults upon Senior Securities	32
Item 4. Mine Safety Disclosures	32
Item 5. Other Information	32
Item 6. Exhibits	32
SIGNATURES	33

PART I. FINANCIAL INFORMATION

Item 1. Financial Statements

LA JOLLA PHARMACEUTICAL COMPANY

Condensed Consolidated Balance Sheets

(in thousands, except par value and share amounts)

	September 30,			December 31,
	2020			2019
	(Unaudited)
ASSETS
Current assets:
Cash and cash equivalents	$	27,760		$	87,820
Accounts receivable, net		3,929			2,960
Inventory, net		7,274			2,211
Prepaid expenses and other current assets		3,240			4,467
Total current assets		42,203			97,458
Property and equipment, net		284			18,389
Right-of-use lease assets		2,150			15,491
Restricted cash		699			909
Intangible assets, net		15,261			-
Goodwill		20,123			-
Total assets	$	80,720		$	132,247
LIABILITIES AND SHAREHOLDERS’ DEFICIT
Current liabilities:
Accounts payable	$	3,928		$	4,177
Accrued expenses		7,683			9,312
Accrued payroll and related expenses		6,164			8,332
Lease liabilities, current portion		985			2,766
Total current liabilities		18,760			24,587
Lease liabilities, less current portion		1,249			26,481
Deferred royalty obligation, net		124,421			124,379
Other noncurrent liabilities		21,805			12,790
Total liabilities	$	166,235		$	188,237
Commitments and contingencies (Note 6)
Shareholders’ deficit:
Common Stock, $0.0001 par value; 100,000,000 shares authorized, 27,378,048 and 27,195,469 shares issued and outstanding at September 30, 2020 and December 31, 2019, respectively		3			3
Series C-12 Convertible Preferred Stock, $0.0001 par value; 11,000 shares authorized, 3,906 shares issued and outstanding at September 30, 2020 and December 31, 2019; and liquidation preference of $3,906 at September 30, 2020 and December 31, 2019		3,906			3,906
Additional paid-in capital		983,850			977,432
Accumulated deficit		(1,073,274	)		(1,037,331	)
Total shareholders’ deficit		(85,515	)		(55,990	)
Total liabilities and shareholders’ deficit	$	80,720		$	132,247

See accompanying notes to the condensed consolidated financial statements.

1

LA JOLLA PHARMACEUTICAL COMPANY

Condensed Consolidated Statements of Operations

(Unaudited)

(in thousands, except per share amounts)

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2020			2019			2020			2019
Revenue
Net product sales	$	9,072		$	5,706		$	22,468		$	15,804
Total revenue		9,072			5,706			22,468			15,804
Operating expenses
Cost of product sales		2,489			554			4,013			1,605
Research and development		3,617			21,182			21,581			64,469
Selling, general and administrative		12,493			10,782			29,322			34,425
Total operating expenses		18,599			32,518			54,916			100,499
Loss from operations		(9,527	)		(26,812	)		(32,448	)		(84,695	)
Other income (expense)
Interest expense		(2,526	)		(2,863	)		(7,402	)		(8,398	)
Interest income		12			501			234			1,818
Other income—related party		-			-			4,085			-
Other income (expense)		281			-			(412	)		-
Total other income (expense), net		(2,233	)		(2,362	)		(3,495	)		(6,580	)
Net loss	$	(11,760	)	$	(29,174	)	$	(35,943	)	$	(91,275	)
Net loss per share, basic and diluted	$	(0.43	)	$	(1.08	)	$	(1.32	)	$	(3.37	)
Weighted-average common shares outstanding, basic and diluted		27,368			27,135			27,311			27,093

See accompanying notes to the condensed consolidated financial statements.

2

LA JOLLA PHARMACEUTICAL COMPANY

Condensed Consolidated Statements of Shareholders’ (Deficit) Equity

(Unaudited)

(in thousands)

	Series C-12 Convertible Preferred Stock				Series F Convertible Preferred Stock				Common Stock				Additional Paid-in		Accumulated			Total Shareholders' (Deficit)
	Shares		Amount		Shares		Amount		Shares		Amount		Capital		Deficit			Equity
Balance at December 31, 2019		4	$	3,906		-	$	-		27,195	$	3	$	977,432	$	(1,037,331	)	$	(55,990	)
Share-based compensation expense		-		-		-		-		-		-		2,407		-			2,407
Issuance of common stock under 2013 Equity Plan		-		-		-		-		44		-		305		-			305
Issuance of common stock under ESPP		-		-		-		-		38		-		200		-			200
Net loss		-		-		-		-		-		-		-		(8,591	)		(8,591	)
Balance at March 31, 2020		4		3,906		-		-		27,277		3		980,344		(1,045,922	)		(61,669	)
Share-based compensation expense		-		-		-		-		-		-		1,590		-			1,590
Issuance of common stock under 2013 Equity Plan		-		-		-		-		50		-		300		-			300
Issuance of common stock under ESPP		-		-		-		-		32		-		159		-			159
Net loss		-		-		-		-		-		-		-		(15,592	)		(15,592	)
Balance at June 30, 2020		4		3,906		-		-		27,359		3		982,393		(1,061,514	)		(75,212	)
Share-based compensation expense		-		-		-		-		-		-		1,388		-			1,388
Issuance of common stock under ESPP		-		-		-		-		19		-		69		-			69
Net loss		-		-		-		-		-		-		-		(11,760	)		(11,760	)
Balance at September 30, 2020		4	$	3,906		-	$	-		27,378	$	3	$	983,850	$	(1,073,274	)	$	(85,515	)

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	Series C-12 Convertible Preferred Stock				Series F Convertible Preferred Stock						Common Stock				Additional Paid-in			Accumulated			Total Shareholders' (Deficit)
	Shares		Amount		Shares			Amount			Shares		Amount		Capital			Deficit			Equity
Balance at December 31, 2018		4	$	3,906		3		$	2,737			26,259	$	3	$	950,258		$	(920,983	)	$	35,921
Share-based compensation expense		-		-		-			-			-		-		6,782			-			6,782
Issuance of common stock under ESPP		-		-		-			-			52		-		283			-			283
Issuance of common stock for conversion of Series F Preferred Stock		-		-		(3	)		(2,737	)		782		-		2,737			-			-
Cumulative-effect adjustment from adoption of ASU 2018-07		-		-		-			-			-		-		(160	)		160			-
Net loss		-		-		-			-			-		-		-			(31,685	)		(31,685	)
Balance at March 31, 2019		4		3,906		-			-			27,093		3		959,900			(952,508	)		11,301
Share-based compensation expense		-		-		-			-			-		-		6,321			-			6,321
Issuance of common stock under ESPP		-		-		-			-			32		-		201			-			201
Net loss		-		-		-			-			-		-		-			(30,416	)		(30,416	)
Balance at June 30, 2019		4		3,906		-			-			27,125		3		966,422			(982,924	)		(12,593	)
Share-based compensation expense		-		-		-			-			-		-		6,419			-			6,419
Issuance of common stock under ESPP		-		-		-			-			22		-		177			-			177
Net loss		-		-		-			-			-		-		-			(29,174	)		(29,174	)
Balance at September 30, 2019		4	$	3,906		-		$	-			27,147	$	3	$	973,018		$	(1,012,098	)	$	(35,171	)

See accompanying notes to the condensed consolidated financial statements.

4

LA JOLLA PHARMACEUTICAL COMPANY

Condensed Consolidated Statements of Cash Flows

(Unaudited)

(in thousands)

	Nine Months Ended
	September 30,
	2020			2019
Operating activities
Net loss	$	(35,943	)	$	(91,275	)
Adjustments to reconcile net loss to net cash used for operating activities:
Share-based compensation expense		5,385			19,522
Depreciation expense		2,155			3,408
Inventory fair value step-up adjustment included in cost of product sales		1,186			-
Amortization of intangible assets		259			-
Amortization of right-of-use lease assets		1,091			969
Non-cash interest expense		5,339			6,971
Loss on short-term investments		502			-
Loss on disposal of property and equipment, net of gain on lease termination		59			15
Changes in operating assets and liabilities:
Accounts receivable, net		218			(36	)
Inventory, net		(1,482	)		110
Prepaid expenses and other current assets		2,445			328
Accounts payable		(1,649	)		(3,234	)
Accrued expenses		(5,786	)		(332	)
Accrued payroll and related expenses		(2,168	)		(2,391	)
Lease liabilities		(1,969	)		(1,873	)
Net cash used for operating activities		(30,358	)		(67,818	)
Investing activities
Acquisition of Tetraphase, net of cash, cash equivalents and restricted cash acquired		(33,513	)		-
Proceeds from the sale of property and equipment		3,070			-
Purchases of property and equipment		-			(679	)
Proceeds from the sale of short-term investments		2,497			-
Purchases of short-term investments		(2,999	)		-
Net cash used for investing activities		(30,945	)		(679	)
Financing activities
Net proceeds from issuance of common stock under 2013 Equity Plan		605			-
Net proceeds from issuance of common stock under ESPP		428			661
Net cash provided by financing activities		1,033			661
Net decrease in cash, cash equivalents and restricted cash		(60,270	)		(67,836	)
Cash, cash equivalents and restricted cash, beginning of period		88,729			173,513
Cash, cash equivalents and restricted cash, end of period	$	28,459		$	105,677
Supplemental disclosure of non-cash investing and financing activities
Conversion of Series F Convertible Preferred Stock into common stock	$	-		$	2,737
Cumulative-effect adjustment from adoption of ASU 2018-07	$	-		$	(160	)
Initial recognition of right-of-use lease asset	$	-		$	16,798
Reconciliation of cash, cash equivalents and restricted cash to the condensed consolidated balance sheets
Cash and cash equivalents	$	27,760		$	104,768
Restricted cash		699			909
Total cash, cash equivalents and restricted cash	$	28,459		$	105,677

See accompanying notes to the condensed consolidated financial statements.

5

LA JOLLA PHARMACEUTICAL COMPANY

Notes to the Condensed Consolidated Financial Statements

(Unaudited)

1.  Business

La Jolla Pharmaceutical Company (collectively with its wholly owned subsidiaries, “La Jolla” or the “Company”) is dedicated to the development and commercialization of innovative therapies that improve outcomes in patients suffering from life-threatening diseases. GIAPREZA^TM (angiotensin II) for injection is approved by the U.S. Food and Drug Administration (“FDA”) as a vasoconstrictor indicated to increase blood pressure in adults with septic or other distributive shock. XERAVA^TM (eravacycline) for injection is a novel fluorocycline of the tetracycline class of antibacterials that is approved by the FDA for the treatment of complicated intra-abdominal infections (“cIAI”) in patients 18 years of age and older.

On July 28, 2020, La Jolla completed its acquisition of Tetraphase Pharmaceuticals, Inc. (“Tetraphase”), a biopharmaceutical company focused on commercializing XERAVA, for $43 million in upfront cash plus potential future cash payments of up to $16 million. The Company’s consolidated financial results for periods ending September 30, 2020 and beyond include Tetraphase’s financial results subsequent to the acquisition closing date of July 28, 2020 (see Note 12).

As of September 30, 2020 and December 31, 2019, the Company had cash and cash equivalents of $27.8 million and $87.8 million, respectively. Based on the Company’s current operating plans and projections, the Company expects that its existing cash and cash equivalents will be sufficient to fund operations for at least one year from the date this Quarterly Report on Form 10-Q is filed with the U.S. Securities and Exchange Commission (the “SEC”).

2.  Basis of Presentation and Summary of Significant Accounting Policies

Basis of Presentation and Use of Estimates

The accompanying condensed consolidated financial statements of the Company have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of SEC Regulation S-X. Accordingly, certain information and disclosures required by GAAP for annual financial statements have been omitted. In the opinion of management, all adjustments, consisting of normal recurring adjustments, considered necessary for a fair presentation have been included. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto for the year ended December 31, 2019 included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019, filed with the SEC on March 2, 2020 (the “Form 10-K”). The accompanying condensed consolidated financial statements include the accounts of La Jolla Pharmaceutical Company and its wholly owned subsidiaries. All inter-company transactions and balances have been eliminated in consolidation.

The preparation of the Company’s condensed consolidated financial statements requires management to make estimates and assumptions that impact the reported amounts of assets, liabilities, revenue and expenses and the disclosure of contingent assets and liabilities in the Company’s condensed consolidated financial statements and the accompanying notes. Actual results may differ materially from these estimates. Certain amounts previously reported in the financial statements have been reclassified to conform to the current year presentation. Such reclassifications did not affect net loss, shareholders’ (deficit) equity or cash flows. The results of operations for the three and nine months ended September 30, 2020 are not necessarily indicative of the results to be expected for the full year or any future interim periods. The accompanying condensed consolidated balance sheet as of December 31, 2019 has been derived from the audited consolidated balance sheet as of December 31, 2019 contained in the Form 10-K.

Summary of Significant Accounting Policies

During the nine months ended September 30, 2020, other than the short-term investments, business combinations, intangible assets and goodwill policies described below, there have been no changes to the Company’s significant accounting policies as described in the Form 10-K.

6

Short-term investments

Short-term investments are comprised of marketable equity securities that are “available-for-sale,” as such term is defined by the Financial Accounting Standards Board (the “FASB”) Accounting Standards Codification (“ASC”) Topic 320. Marketable equity securities are classified as current assets. Short-term investments are measured at fair value, and unrealized gains and losses are recorded in other income (expense), net in the consolidated statements of operations. Overnight sweep accounts are classified as cash and cash equivalents.

Concentration of Credit Risk

Financial instruments that potentially subject the Company to concentration of credit risk consist of cash and accounts receivable. The Company maintains its cash in checking and savings accounts at federally insured financial institutions in excess of federally insured limits.

During the nine months ended September 30, 2020, 468 hospitals in the U.S. purchased GIAPREZA. During the nine months ended September 30, 2020, 646 hospitals in the U.S. purchased XERAVA. Hospitals purchase our products through a network of specialty and wholesale distributors (“Customers”). The Company does not believe that the loss of one of these distributors would significantly impact the ability to distribute GIAPREZA or XERAVA, as the Company expects that sales volume would be absorbed by the remaining distributors. The following table includes the percentage of U.S. net product sales and accounts receivable balances for the Company’s three major Customers, each of which comprised 10% or more of its U.S. net product sales:

	U.S. Net Product Sales						Accounts Receivable
	Three Months Ended			Nine Months Ended
	September 30, 2020			September 30, 2020			As of September 30, 2020
Customer A		37	%		38	%		28	%
Customer B		33	%		32	%		34	%
Customer C		26	%		27	%		33	%
Total		96	%		97	%		95	%

Revenue Recognition

The Company has adopted FASB ASC Topic 606—Revenue from Contracts with Customers (“ASC 606”). Under ASC 606, the Company recognizes revenue when its Customers obtain control of the Company’s product, which typically occurs on delivery. Revenue is recognized in an amount that reflects the consideration that the Company expects to receive in exchange for those goods. To determine revenue recognition for contracts with Customers within the scope of ASC 606, the Company performs the following 5 steps: (i) identify the contract(s) with a Customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) the entity satisfies the relevant performance obligations. There have been no contract assets or liabilities recorded to date relating to product sales.

Revenue from product sales is recorded at the transaction price, net of estimates for variable consideration consisting of chargebacks, discounts, returns and administrative fees. Variable consideration is estimated using the expected-value amount method, which is the sum of probability-weighted amounts in a range of possible consideration amounts. Actual amounts of consideration ultimately received may differ from the Company’s estimates. If actual results vary materially from the Company’s estimates, the Company will adjust these estimates, which will affect revenue from product sales and earnings in the period such estimates are adjusted. These items include:

• Chargebacks—Chargebacks are discounts the Company provides to distributors in the event that the sales prices to end users are below the distributors’ acquisition price. This may occur due to a direct contract with a health system, a group purchasing organization (“GPO”) agreement or a sale to a government facility. Chargebacks are estimated based on known chargeback rates and recorded as a reduction of revenue on delivery to Customers.

7

• Discounts—The Company offers Customers various forms of incentives and consideration, including prompt-pay and other discounts. The Company estimates discounts primarily based on contractual terms. These discounts are recorded as a reduction of revenue on delivery to Customers.

• Returns—The Company offers Customers a limited right of return, generally for damaged or expired product. The Company estimates returns based on an internal analysis, which includes actual experience. The estimates for returns are recorded as a reduction of revenue on delivery to Customers.

• Administrative Fees—The Company pays administrative fees to GPOs for services and access to data. Additionally, the Company pays an Industrial Funding Fee as part of the U.S. General Services Administration’s Federal Supply Schedules program. These fees are based on contracted terms and are paid after the quarter in which the product was purchased by the applicable GPO or government agency.

The Company will continue to assess its estimates of variable consideration as it accumulates additional historical data and will adjust these estimates accordingly.

Business Combinations

The Company accounts for business combinations using the acquisition method pursuant to FASB ASC Topic 805. This method requires, among other things, that results of operations of acquired companies are included in La Jolla's financial results beginning on the respective acquisition dates, and that assets acquired and liabilities assumed are recognized at fair value as of the acquisition date. Intangible assets acquired in a business combination are recorded at fair value using a discounted cash flow model. The discounted cash flow model requires assumptions about the timing and amount of future net cash flows, the cost of capital and terminal values from the perspective of a market participant. Any excess of the fair value of consideration transferred (the “Purchase Price”) over the fair values of the net assets acquired is recognized as goodwill. Contingent consideration liabilities are recognized as part of the Purchase Price at the estimated fair value on the acquisition date. Subsequent changes to the fair value of contingent consideration liabilities will be included in other income (expense), net in the consolidated statements of operations. The fair value of assets acquired and liabilities assumed in certain cases may be subject to revision based on the final determination of fair value during a period of time not to exceed 12 months from the acquisition date. Legal costs, due diligence costs, business valuation costs and all other acquisition-related costs are expensed when incurred.

Intangible Assets

Intangible assets acquired in a business combination are initially recorded at fair value. Intangible assets with a definite useful life are amortized on a straight-line basis over the estimated useful life of the related assets. Intangible assets with an indefinite useful life are not amortized.

The Company reviews its intangible assets for impairment at least annually or whenever events or changes in circumstances indicate that the carrying value of an asset may not be recoverable. If such circumstances are determined to exist, an estimate of undiscounted future cash flows produced by the asset, including its eventual residual value, is compared to the carrying value to determine whether impairment exists. In the event that such cash flows are not expected to be sufficient to recover the carrying amount of the assets, the assets are written down to their estimated fair values. Fair value is estimated through discounted cash flow models to project cash flows from the asset.

Goodwill

Goodwill represents the excess of the Purchase Price over the fair value of the net assets acquired as of the acquisition date. Goodwill has an indefinite useful life and is not amortized.

The Company reviews its goodwill for impairment at least annually or whenever events or changes in circumstances indicate that the carrying amount of the Company may exceed its fair value. The Company first assesses qualitative factors to determine whether it is more likely than not that the fair value of the Company is less than its carrying amount, including goodwill. If that is not the case, the Company has completed its goodwill impairment test and does not recognize an impairment charge. However, if that is the case, the Company performs a quantitative impairment test, and, if the carrying amount of the Company exceeds its fair value, then the Company will recognize an impairment charge for the amount by which its carrying amount exceeds its fair value, not to exceed the carrying amount of the goodwill.

8

Recent Accounting Pronouncements

Management has considered all recent accounting pronouncements and has concluded that there are no recently issued accounting pronouncements that may have a material effect on the Company’s results of operations, financial condition or cash flows based on current information.

3.  Net Loss per Share

Basic net loss per share is calculated by dividing net loss by the weighted-average number of common shares outstanding during the period, without consideration of potential common shares. Diluted net loss per share is calculated by dividing net loss by the weighted-average number of common shares outstanding plus potential common shares. Convertible preferred stock and stock options are considered potential common shares and are included in the calculation of diluted net loss per share using the treasury stock method when their effect is dilutive. Potential common shares are excluded from the calculation of diluted net loss per share when their effect is anti-dilutive. As of September 30, 2020 and 2019, there were 10.0 million and 13.7 million potential common shares, respectively, that were excluded from the calculation of diluted net loss per share because their effect was anti-dilutive.

4.  Balance Sheet Details

Restricted Cash

Restricted cash as of September 30, 2020 consists of: (i) a $0.5 million security deposit for the Company’s field force corporate credit card program; (ii) a $0.2 million standby letter of credit provided in lieu of a security deposit for the Watertown Lease (see Note 6); and (iii) a $40,000 security deposit for the Company’s corporate purchasing credit card. Restricted cash as of December 31, 2019 consists of a $0.9 million standby letter of credit provided in lieu of a security deposit for the San Diego Lease (see Note 6).

Inventory, Net

Inventory, net consisted of the following (in thousands):

	September 30,		December 31,
	2020		2019
Raw materials	$	802	$	-
Work-in-process		2,340		1,505
Finished goods		4,132		706
Total inventory, net	$	7,274	$	2,211

As of September 30, 2020, inventory, net includes $2.1 million of the fair value step-up adjustment to Tetraphase’s inventory recorded in connection with the acquisition of Tetraphase (see Note 12). As of September 30, 2020 and December 31, 2019, total inventory is recorded net of inventory reserves of $0.2 million and $0.1 million, respectively.

Property and Equipment, Net

Property and equipment, net consisted of the following (in thousands):

	September 30,			December 31,
	2020			2019
Software	$	733		$	733
Furniture and fixtures		598			2,598
Leasehold improvements		386			14,504
Computer hardware		310			1,296
Lab equipment		-			9,665
Total property and equipment, gross		2,027			28,796
Accumulated depreciation and amortization		(1,743	)		(10,407	)
Total property and equipment, net	$	284		$	18,389

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The Company recorded a loss of approximately $12.9 million, net of $3.1 million of cash proceeds, in other income (expense), net, related to the disposal of tenant improvements and certain equipment in connection with the termination of the San Diego Lease. The $12.9 million loss is recorded in the consolidated statements of cash flows net of the gain from the termination of the San Diego Lease (see Note 6).

Intangible Assets, Net

Intangible assets, net consisted of the following (in thousands):

	September 30,			December 31,
	2020			2019
Technology	$	14,000		$	-
Trade name		1,520			-
Total intangible assets, gross		15,520			-
Accumulated amortization		(259	)		-
Total intangible assets, net	$	15,261		$	-

The intangible assets were recorded in connection with the acquisition of Tetraphase (see Note 12).

Accrued Expenses

Accrued expenses consisted of the following (in thousands):

	September 30,		December 31,
	2020		2019
Accrued interest expense	$	3,870	$	2,692
Accrued manufacturing costs		1,449		1,339
Accrued clinical study costs		426		3,496
Accrued other		1,938		1,785
Total accrued expenses	$	7,683	$	9,312

Other Noncurrent Liabilities

Other noncurrent liabilities consisted of the following (in thousands):

	September 30,		December 31,
	2020		2019
Accrued interest expense	$	16,909	$	12,790
Fair value of CVRs (see Note 12)		2,610		-
Paycheck Protection Program loan		2,286		-
Total other noncurrent liabilities	$	21,805	$	12,790

5.  Deferred Royalty Obligation

In May 2018, the Company closed a $125.0 million royalty financing agreement (the “Royalty Agreement”) with HealthCare Royalty Partners (“HCR”). Under the terms of the Royalty Agreement, the Company received $125.0 million in exchange for tiered royalty payments on worldwide net sales of GIAPREZA. HCR is entitled to receive quarterly royalties on worldwide net sales of GIAPREZA beginning April 1, 2018. Quarterly payments to HCR under the Royalty Agreement start at a maximum royalty rate, with step-downs based on the achievement of annual net product sales thresholds. Through December 31, 2021, the royalty rate will be a maximum of 10%. Starting January 1, 2022, the maximum royalty rate may increase by 4% if an agreed-upon, cumulative net product sales threshold has not been met, and, starting January 1, 2024, the maximum royalty rate may increase by an additional 4% if a different agreed-upon, cumulative net product sales threshold has not been met. The Royalty Agreement is subject to maximum aggregate royalty payments to HCR of $225.0 million. The Royalty Agreement expires upon the first to occur of January 1, 2031 or when the maximum aggregate royalty payments have been made. The Royalty Agreement was entered into by the Company’s wholly owned subsidiary, La Jolla Pharma, LLC, and HCR has no recourse under the Royalty Agreement against La Jolla Pharmaceutical Company or any assets other than GIAPREZA.

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On receipt of the $125.0 million payment from HCR, the Company recorded a deferred royalty obligation of $125.0 million, net of issuance costs of $0.7 million. For the three months ended September 30, 2020 and 2019, the Company recognized interest expense, including amortization of the obligation discount, of $2.5 million and $2.8 million, respectively. For the nine months ended September 30, 2020 and 2019, the Company recognized interest expense, including amortization of the obligation discount, of $7.4 million and $8.4 million, respectively. The carrying value of the deferred royalty obligation as of September 30, 2020 was $124.4 million, net of unamortized obligation discount of $0.6 million, and was classified as noncurrent. The related accrued interest expense was $20.8 million and $15.5 million as of September 30, 2020 and December 31, 2019, respectively, of which $16.9 million and $12.8 million was classified as other noncurrent liabilities, respectively. During the three and nine months ended September 30, 2020, the Company made royalty payments to HCR of $0.6 million and $2.1 million, respectively, and, as of September 30, 2020, the Company recorded royalty obligations payable of $0.7 million in accrued expenses. The deferred royalty obligation is classified as Level 3 in the ASC Topic 820-10, three-tier fair value hierarchy, and its carrying value approximates fair value.

Under the terms of the Royalty Agreement, La Jolla Pharma, LLC has certain obligations, including the obligation to use commercially reasonable and diligent efforts to commercialize GIAPREZA. If La Jolla Pharma, LLC is held to not have met these obligations, HCR would have the right to terminate the Royalty Agreement and demand payment from La Jolla Pharma, LLC of either $125.0 million or $225.0 million (depending on which obligation La Jolla Pharma, LLC is held to not have met), minus aggregate royalties already paid to HCR. In the event that La Jolla Pharma, LLC fails to timely pay such amount if and when due, HCR would have the right to foreclose on the GIAPREZA-related assets. The Company concluded that certain of these contract provisions that could result in an acceleration of amounts due under the Royalty Agreement are embedded derivatives that require bifurcation from the deferred royalty obligation and fair value recognition. The Company determined the fair value of each derivative by assessing the probability of each event occurring, as well as the potential repayment amounts and timing of such repayments that would result under various scenarios. As a result of this assessment, the Company determined that the fair value of the embedded derivatives is immaterial as of September 30, 2020 and December 31, 2019. Each reporting period, the Company estimates the fair value of the embedded derivatives until the features lapse and/or the termination of the Royalty Agreement. Any change in the fair value of the embedded derivatives will be recorded as either a gain or loss on the consolidated statements of operations.

6.  Commitments and Contingencies

Lease Commitments

San Diego Lease

On December 29, 2016, the Company entered into an agreement with BMR-Axiom LP (the “Landlord”) to lease office and laboratory space as its corporate headquarters located at 4550 Towne Centre Court, San Diego, California (the “San Diego Lease”) for a period of 10 years commencing on October 30, 2017 (the “Initial Lease Term”). The Company had an option to extend the San Diego Lease for an additional 5 years at the end of the Initial Lease Term.

On August 6, 2020, La Jolla received notice from the Landlord that the Landlord exercised its option to terminate the San Diego Lease effective August 31, 2020. The Landlord exercised its right to terminate the San Diego Lease and recapture the property after La Jolla provided notice to the Landlord of its intent to assign the San Diego Lease. In connection with the termination of the San Diego Lease, La Jolla will have no further obligations under the San Diego Lease after the August 31, 2020 termination date, including with respect to future payments under the San Diego Lease. The Company recorded a non-cash gain of approximately $12.9 million as other income (expense), net, in connection with the write-off of the lease liability and corresponding right-of-use lease asset. The $12.9 million gain is recorded in the consolidated statements of cash flows net of the loss on disposal of property and equipment in connection with the termination of the San Diego Lease (see Note 4).

The Company provided a standby letter of credit for $0.9 million in lieu of a security deposit. This amount decreased to $0.6 million after year two of the Initial Lease Term. As of September 30, 2020, there was no cash pledged as collateral for such letter of credit and recorded as restricted cash.

As of September 30, 2020, there was no lease liability and corresponding right-of-use asset related to the San Diego Lease. Lease expense for the San Diego Lease was $0.5 million and $1.8 million for the three and nine months ended September 30, 2020, respectively, and was $0.7 million and $2.1 million for the three and nine months ended September 30, 2019, respectively.

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Watertown Lease

On November 16, 2006, Tetraphase entered into an agreement with ARE-480 Arsenal Street, LLC, to lease office and laboratory space as its corporate headquarters located at 480 Arsenal Way, Watertown, Massachusetts (the “Watertown Lease”). The Watertown Lease originally provided for an expiration on November 30, 2019. In November 2018, Tetraphase entered into an Eighth Amendment to the Watertown Lease to extend the term of the lease through November 30, 2022 (the “Lease Term”). In January 2020, Tetraphase entered into a Ninth Amendment to the Watertown Lease to surrender a portion of its leased space, which reduced the leased premises by a total of 15,899 square feet from approximately 37,438 square feet to approximately 21,539 square feet. Total aggregate remaining payments under the Watertown lease as of July 28, 2020 were $2.6 million.

Tetraphase provided a standby letter of credit for $0.2 million in lieu of a security deposit. As of September 30, 2020, $0.2 million of cash was pledged as collateral for such letter of credit and recorded as restricted cash. The annual rent under the Watertown Lease is subject to escalation during the Lease Term. In addition to rent, the Watertown Lease requires the Company to pay certain taxes, insurance and operating costs relating to the leased premises (collectively, “Lease Operating Costs”). The Watertown Lease contains customary default provisions, representations, warranties and covenants. The Watertown Lease is classified as an operating lease.

Future minimum lease payments, excluding Lease Operating Costs, under the Watertown Lease as of September 30, 2020 are as follows (in thousands):

2020	$	281
2021		1,138
2022		1,027
Thereafter		-
Total future minimum lease payments		2,446
Less: discount		(212	)
Total lease liabilities	$	2,234

As of July 28, 2020, the Company recorded a lease liability for the Watertown Lease based on the present value of the lease payments over the remaining Lease Term, discounted using the Company’s incremental borrowing rate. The Company recorded a corresponding right-of-use lease asset based on the lease liability. Subsequent to July 28, 2020 and through September 30, 2020, lease expense for the Watertown Lease was $0.2 million.

Contingencies

From time to time, the Company may become subject to claims and litigation arising in the ordinary course of business. The Company is not a party to any material legal proceedings, nor is it aware of any material pending or threatened litigation.

7.  Shareholders’ Equity

Preferred Stock

As of September 30, 2020 and December 31, 2019, 3,906 shares of Series C-1² Convertible Preferred Stock (“Series C-1²  Preferred”) were issued, outstanding and convertible into 6,735,378 shares of common stock. In January 2019, the Company issued 782,031 shares of common stock upon the conversion of 2,737 shares of Series F Convertible Preferred Stock. As of September 30, 2020 and December 31, 2019, there were no shares of Series F Convertible Preferred Stock issued and outstanding.

8.  Equity Incentive Plans

2013 Equity Incentive Plan

A total of 9,600,000 shares of common stock have been reserved for issuance under the La Jolla Pharmaceutical Company 2013 Equity Incentive Plan (the “2013 Equity Plan”). As of September 30, 2020, 6,061,242 shares of common stock remained available for future grants under the 2013 Equity Plan.

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2018 Employee Stock Purchase Plan

A total of 750,000 shares of common stock have been reserved for issuance under the La Jolla Pharmaceutical Company 2018 Employee Stock Purchase Plan (the “ESPP”). As of September 30, 2020, 480,368 shares of common stock remained available for future grants under the ESPP.

Equity Awards

The activity related to equity awards, which are comprised of stock options and inducement grants, during the nine months ended September 30, 2020 is summarized as follows:

	Equity Awards			Weighted-average Exercise Price per Share		Weighted-average Remaining Contractual Term (years)		Aggregate Intrinsic Value
Outstanding at December 31, 2019		5,616,840		$	19.50
Granted		1,802,860		$	4.70
Exercised		(94,219	)	$	6.42
Cancelled/forfeited		(4,000,059	)	$	18.74
Outstanding at September 30, 2020		3,325,422		$	12.77		7.43	$	-
Exercisable at September 30, 2020		1,466,036		$	20.53		5.52	$	-

Share-based Compensation Expense

The classification of share-based compensation expense is summarized as follows (in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
Research and development	$	691	$	4,169	$	3,218	$	12,062
Selling, general and administrative		697		2,250		2,167		7,460
Total share-based compensation expense	$	1,388	$	6,419	$	5,385	$	19,522

As of September 30, 2020, total unrecognized share-based compensation expense related to unvested equity awards was $8.0 million, which is expected to be recognized over a weighted-average period of 2.6 years. As of September 30, 2020, there was no unrecognized share-based compensation expense related to shares of common stock issued under the ESPP.

9.  Other Income—Related Party

The Company has a non-voting profits interest in a related party, which provides the Company with the potential to receive a portion of the future distributions of profits, if any. Investment funds affiliated with the Chairman of the Company’s board of directors have a controlling interest in the related party. During the nine months ended September 30, 2020, the Company received distributions of $4.1 million in connection with this profits interest.

10.  License Agreements

In-license Agreements

George Washington University License

In December 2014, the Company entered into a patent license agreement with George Washington University (“GW”), which was subsequently amended and restated (the “GW License”) and assigned to La Jolla Pharma, LLC. Pursuant to the GW License, GW exclusively licensed to the Company certain intellectual property rights relating to GIAPREZA, including the exclusive rights to certain issued patents and patent applications covering GIAPREZA. Under the GW License, the Company is obligated to use commercially reasonable efforts to develop, commercialize, market and sell GIAPREZA. The Company has paid a one-time license initiation fee, annual maintenance fees, an amendment fee, additional payments following the achievement of certain development and regulatory milestones and royalties. As a result of the European Commission’s approval of

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GIAPREZA in August 2019, the Company made a milestone payment to GW in the amount of $0.5 million in the first quarter of 2020. The Company is obligated to pay a 6% royalty on net sales of GIAPREZA. The obligation to pay royalties under this agreement extends through the last-to-expire patent covering GIAPREZA. During the three and nine months ended September 30, 2020, the Company made royalty payments to GW of $0.3 million and $1.2 million, respectively.

Harvard University License

In August 2006, Tetraphase entered into a license agreement with Harvard University (“Harvard”), which was subsequently amended and restated (the “Harvard License”). Pursuant to the Harvard License, Harvard exclusively licensed to the Company certain intellectual property rights relating to tetracycline-based products, including XERAVA, including the exclusive rights to certain issued patents and patent applications covering such products. Under the Harvard License, the Company is obligated to use commercially reasonable efforts to develop, commercialize, market and sell tetracycline-based products, including XERAVA. For each product covered by the Harvard License, the Company is obligated to make certain payments totaling up to approximately $15.1 million upon the achievement of certain clinical development and regulatory milestones, and to pay Harvard tiered royalties at percentages in the single digits based on net sales, if any, of tetracycline-based products, including XERAVA, by the Company, its affiliates and sublicensees in certain circumstances. The Company is also obligated to pay Harvard a specified share of non-royalty sublicensing and other revenues that it receives from sublicensees for the grant of sublicenses in certain circumstances, including the Everest License (see below), and to reimburse Harvard for specified patent prosecution and maintenance costs. The obligation to pay royalties under this agreement extends through the last-to-expire patent covering tetracycline-based products, including XERAVA. Subsequent to July 28, 2020 and through September 30, 2020, the Company paid $0.1 million of royalties to Harvard, and did not make any payments to Harvard related to clinical development and regulatory milestone payments.

Paratek Pharmaceuticals, Inc. License

In March 2019, Tetraphase entered into a license agreement with Paratek Pharmaceuticals, Inc. (“Paratek”), which was subsequently amended and restated (the “Paratek License”). Pursuant to the Paratek License, Paratek non-exclusively licensed to the Company certain intellectual property rights relating to XERAVA, including non-exclusive rights to certain issued patents and patent applications covering XERAVA. Under the Paratek License, the Company is obligated to use commercially reasonable efforts to develop, commercialize, market and sell XERAVA. The Company is obligated to pay Paratek royalties at a low single digit percent based on net sales of XERAVA in the U.S. The obligation to pay royalties under this agreement extends through the last-to-expire patent covering XERAVA. Subsequent to July 28, 2020 and through September 30, 2020, the Company paid $33,000 of royalties to Paratek.

Out-license Agreement

Everest Medicines Limited License

In February 2018, Tetraphase entered into a license agreement with Everest Medicines Limited (“Everest”), which was subsequently amended and restated (the “Everest License”). Pursuant to the Everest License, Tetraphase granted Everest an exclusive license to develop and commercialize XERAVA for the treatment of cIAI and other indications in mainland China, Taiwan, Hong Kong, Macau, South Korea, Singapore, the Malaysian Federation, the Kingdom of Thailand, the Republic of Indonesia, the Socialist Republic of Vietnam and the Republic of the Philippines (collectively, the “Territory”). The Company is eligible to receive up to an aggregate of $11.0 million in future clinical development and regulatory milestone payments and up to an aggregate of $20.0 million in sales milestone payments. The Company is also entitled to receive tiered royalties from Everest at percentages in the low double digits on sales, if any, in the Territory of products containing eravacycline. Royalties are payable with respect to each jurisdiction in the Territory until the latest to occur of: (1) the last-to-expire of specified patent rights in such jurisdiction in the Territory; (2) expiration of marketing or regulatory exclusivity in such jurisdiction in the Territory; or (3) 10 years after the first commercial sale of a product in such jurisdiction in the Territory. In addition, royalties payable under the Everest License will be subject to reduction on account of generic competition and after patent expiration in a jurisdiction, with any such reductions capped at certain percentages of the amounts otherwise payable during the applicable royalty payment period. Pursuant to the Everest License, Everest will be solely responsible for the development and commercialization of licensed products in the Territory. The Company agreed to use commercially reasonable efforts to manufacture drug product for clinical development, which will be paid by Everest at the cost to manufacture, as well as manufacture drug product for commercial supply, which will be paid by Everest at cost plus a reasonable margin. The Company has not yet entered into a commercial supply agreement with Everest, which would set the quantity and timing of commercial supply. Subsequent to July 28,

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2020 and through September 30, 2020, the Company has not received any payments from Everest related to either royalties or clinical development and regulatory milestones.

11.  Company-wide Realignments

On December 2, 2019, the Board of Directors of the Company approved a restructuring plan (the “2019 Realignment”) that reduced the Company’s headcount. The 2019 Realignment did not result in any reductions in headcount in the Company’s commercial organization supporting its products. For the year ended December 31, 2019, total expense was comprised of $5.8 million for one-time termination benefits to the affected employees, including severance and health care benefits, offset by a $0.9 million reversal of non-cash, share-based compensation expense related to forfeited, unvested equity awards. As of September 30, 2020, the Company had paid $4.9 million of the $5.8 million cash severance and health care benefits charges, and the remaining $0.2 million of the health care benefits charges were included in accrued payroll and related expenses. The Company expects to complete making payments related to the 2019 Realignment by the end of the fourth quarter of 2020.

On May 28, 2020, the Board of Directors of the Company approved a restructuring plan (the “2020 Realignment”) to align its organization with the Company’s sole focus on the commercialization of its products. The 2020 Realignment reduced the Company’s headcount. For the nine months ended September 30, 2020, total expense was comprised of $4.1 million for one-time termination benefits to the affected employees, including severance and health care benefits, offset by a $0.4 million reversal of non-cash, share-based compensation expense related to forfeited, unvested equity awards. As of September 30, 2020, the Company had paid $2.6 million of the $4.1 million cash severance and health care benefits charges, and the remaining $1.5 million of the cash severance and health care benefits charges were included in accrued payroll and related expenses. The Company expects to complete making substantially all of the payments related to the 2020 Realignment by the end of the first quarter of 2021.

In connection with the acquisition of Tetraphase, the Company incurred one-time charges related to a reduction in the combined Company’s headcount. For the three and nine months ended September 30, 2020, total expense was comprised of $3.1 million for one-time termination benefits to the affected employees, including severance and health care benefits. As of September 30, 2020, the Company had paid $1.3 million of the $3.1 million cash severance and health care benefits charges, and the remaining $1.8 million of the cash severance and health care benefits charges were included in accrued payroll and related expenses. The Company expects to complete making substantially all of the payments related to this headcount reduction by the end of the second quarter of 2021.

12.  Acquisition of Tetraphase Pharmaceuticals, Inc.

On June 24, 2020, La Jolla entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Tetraphase, a biopharmaceutical company focused on commercializing its novel tetracycline XERAVA to treat serious and life‑threatening infections, and TTP Merger Sub, Inc., a wholly owned subsidiary of La Jolla. On July 28, 2020, La Jolla completed its acquisition of Tetraphase for $43 million in upfront cash plus potential future cash payments of up to $16 million pursuant to contingent value rights (“CVRs”). The holders of the CVRs are entitled to receive potential future cash payments of up to $16 million in the aggregate upon the achievement of certain net sales of XERAVA in the U.S. as follows: (i) $2.5 million if 2021 XERAVA U.S. net sales are at least $20 million; (ii) $4.5 million if XERAVA U.S. net sales are at least $35 million during any calendar year ending on or prior to December 31, 2024; and (iii) $9 million if XERAVA U.S. net sales are at least $55 million during any calendar year ending on or prior to December 31, 2024. Following the acquisition, Tetraphase became a wholly owned subsidiary of La Jolla.

The acquisition of Tetraphase was accounted for as a business combination using the acquisition method pursuant to FASB ASC Topic 805. As the acquirer for accounting purposes, La Jolla has estimated the Purchase Price, assets acquired and liabilities assumed as of the acquisition date, with the excess of the Purchase Price over the fair value of net assets acquired recognized as goodwill. The estimated fair value of assets acquired and liabilities assumed in certain cases may be subject to revision based on the final determination of fair value.

The Purchase Price is comprised of the upfront cash of $43 million and the estimated fair value of potential future cash payments pursuant to the CVRs. The estimated fair value of assets acquired was $54.7 million, and the estimated fair value of liabilities assumed was $9.1 million.

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The Purchase Price allocation as of the acquisition date is presented as follows (in thousands):

	July 28,
	2020
Cash	$	42,990
Fair value of CVRs		2,610
Total Purchase Price	$	45,600
Cash and cash equivalents		8,778
Accounts receivable		1,187
Inventory		4,767
Prepaid expenses and other current assets		1,218
Property and equipment		58
Right-of-use lease assets		2,302
Restricted cash		699
Identifiable intangible assets		15,520
Goodwill		20,123
Accounts payable		(1,400	)
Accrued expenses		(2,979	)
Lease liabilities, current portion		(967	)
Lease liabilities, less current portion		(1,420	)
Other noncurrent liabilities		(2,286	)
Total Purchase Price	$	45,600

The estimated fair value of potential future cash payments pursuant to the CVRs was based on a Monte Carlo simulation and is classified as Level 3 in the ASC Topic 820-10, three-tier fair value hierarchy.

The Company recorded a $3.3 million fair value step-up adjustment to Tetraphase’s inventory as of the acquisition date. Raw material components and active pharmaceutical ingredients were recorded based on estimated replacement cost. Finished drug product was valued at estimated selling cost, adjusted for costs of selling effort and a reasonable profit allowance for such selling effort from the viewpoint of a market participant. This fair value step-up adjustment is recorded as cost of products sales when the inventory is sold to Customers, $1.2 million of which was included in cost of product sales subsequent to July 28, 2020 and through September 30, 2020.

Identifiable intangible assets consist of certain technology and trade names acquired from Tetraphase, and include the value of the Harvard, Paratek and Everest Licenses (see Note 10). The acquired intangible assets have definite useful lives and are being amortized on a straight-line basis over an estimated useful life of 10 years. The acquired intangible assets are classified as Level 3 in the ASC Topic 820-10, three-tier fair value hierarchy.

Goodwill represents the excess of the Purchase Price over the fair value of the net assets acquired as of the acquisition date. Goodwill represents the value of the stronger platform to increase patient access to the Company’s commercial products and the operational synergies of the combined Company. Goodwill has an indefinite useful life and is not amortized. The goodwill is only deductible for tax purposes if the Company makes a U.S. Internal Revenue Code Section 338 (“Section 338”) election. The Company is currently evaluating whether to make a Section 338 election.

Subsequent to July 28, 2020 and through September 30, 2020, XERAVA U.S. net sales were $1.9 million and operating losses attributable to Tetraphase were $6.4 million, inclusive of $0.3 million of intangible asset amortization included in selling, general and administrative expense and $1.2 million of the inventory fair value step-up adjustment included in cost of product sales.

Acquisition-related expenses, which were comprised primarily of legal fees, were $0.3 million and $0.9 million for the three and nine months ended September 30, 2020, respectively, and were included in selling, general and administrative expense.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

You should read the following discussion and analysis of our financial condition and results of operations together with our condensed consolidated financial statements and the related notes and other financial information included elsewhere in this Quarterly Report on Form 10-Q and our audited financial statements and the related notes and other financial information included in our Annual Report on Form 10-K for the year ended December 31, 2019 filed with the U.S. Securities and Exchange Commission (the “SEC”) on March 2, 2020 (the “Form 10-K”).

Forward-looking Statements

This Quarterly Report on Form 10-Q contains “forward-looking statements” within the meaning of the federal securities laws, and such statements may involve substantial risks and uncertainties. All statements, other than statements of historical facts included in this Quarterly Report on Form 10-Q, including statements concerning our plans, objectives, goals, strategies, future events, future revenues or performance, future expenses, financing needs, plans or intentions relating to acquisitions, business trends and other information referred to under this section titled “Management’s Discussion and Analysis of Financial Condition and Results of Operations” are forward-looking statements. Forward-looking statements generally relate to future events or our future financial or operating performance. In some cases, you can identify forward-looking statements by terms such as “may,” “might,” “will,” “objective,” “intend,” “should,” “could,” “can,” “would,” “expect,” “believe,” “design,” “estimate,” “predict,” “potential,” “plan,” “anticipate,” “target,” “forecast” or the negative of these terms and similar expressions intended to identify forward-looking statements. Forward-looking statements are not historical facts and reflect our current views with respect to future events. Forward-looking statements are also based on assumptions and are subject to risks and uncertainties. Given these uncertainties, you should not place undue reliance on these forward-looking statements.

There are a number of risks, uncertainties and other important factors that could cause our actual results to differ materially from the forward-looking statements contained in this Quarterly Report on Form 10-Q. Such risks, uncertainties and other factors are described under “Risk Factors” in Item 1A of our Form 10-K for the year ended December 31, 2019 and under “Risk Factors” in Item 1A of this Quarterly Report on Form 10-Q. We caution you that these risks, uncertainties and other factors may not contain all of the risks, uncertainties and other factors that are important to you. In addition, we cannot assure you that we will realize the results, benefits or developments that we expect or anticipate or, even if substantially realized, that they will result in the consequences or affect us or our business in the way expected. All forward-looking statements in this Quarterly Report on Form 10-Q apply only as of the date made and are expressly qualified in their entirety by the cautionary statements included in this Quarterly Report on Form 10-Q. We undertake no obligation to publicly update or revise any forward-looking statements to reflect subsequent events or circumstances.

Business Overview

La Jolla Pharmaceutical Company is dedicated to the development and commercialization of innovative therapies that improve outcomes in patients suffering from life-threatening diseases. GIAPREZA^TM (angiotensin II) for injection is approved by the U.S. Food and Drug Administration (“FDA”) as a vasoconstrictor indicated to increase blood pressure in adults with septic or other distributive shock. XERAVA^TM (eravacycline) for injection is a novel fluorocycline of the tetracycline class of antibacterials that is approved by the FDA for the treatment of complicated intra-abdominal infections (“cIAI”) in patients 18 years of age and older.

On July 28, 2020, La Jolla completed its acquisition of Tetraphase Pharmaceuticals, Inc. (“Tetraphase”), a biopharmaceutical company focused on commercializing XERAVA, for $43 million in upfront cash plus potential future cash payments of up to $16 million. Financial results for periods ending September 30, 2020 and beyond include Tetraphase’s financial results subsequent to the acquisition closing date of July 28, 2020.

For the three months ended September 30, 2020, GIAPREZA U.S. net sales were $7.2 million, up 24% from the three months ended June 30, 2020 and up 26% from the three months ended September 30, 2019. For the nine months ended September 30, 2020, GIAPREZA U.S. net sales were $20.6 million, up 30% from the same period in 2019.

Subsequent to July 28, 2020 and through September 30, 2020, XERAVA U.S. net sales were $1.9 million. For the three months ended September 30, 2020, XERAVA U.S. net sales were $2.7 million, up 80% from the three months ended June 30, 2020 and up 170% from the three months ended September 30, 2019. For the nine months ended September 30, 2020, XERAVA U.S. net sales were $5.9 million, up 181% from the same period in 2019.

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Product Portfolio

^a U.S.: GIAPREZA is a vasoconstrictor to increase blood pressure in adults with septic or other distributive shock

European Union: GIAPREZA is indicated for the treatment of refractory hypotension in adults with septic or other distributive shock who remain hypotensive despite adequate volume restitution and application of catecholamines and other available vasopressor therapies

^b U.S.: XERAVA is a fluorocycline of the tetracycline class of antibacterials for the treatment of complicated intra-abdominal infections (“cIAI”) in patients 18 years of age and older

European Union: XERAVA is indicated for the treatment of cIAI in adults

GIAPREZA^TM (angiotensin II)

GIAPREZA^TM (angiotensin II) for injection is approved by the FDA as a vasoconstrictor indicated to increase blood pressure in adults with septic or other distributive shock. GIAPREZA is approved by the European Commission (“EC”) for the treatment of refractory hypotension in adults with septic or other distributive shock who remain hypotensive despite adequate volume restitution and application of catecholamines and other available vasopressor therapies. GIAPREZA mimics the body’s endogenous angiotensin II peptide, which is central to the renin-angiotensin-aldosterone system, which in turn regulates blood pressure. GIAPREZA is marketed in the U.S. by La Jolla Pharmaceutical Company on behalf of La Jolla Pharma, LLC, its wholly owned subsidiary.

XERAVA^TM (eravacycline)

XERAVA^TM (eravacycline) for injection is a novel fluorocycline of the tetracycline class of antibacterials that is approved by the FDA for the treatment of cIAI in patients 18 years of age and older. XERAVA is approved by the EC for the treatment of cIAI in adults. XERAVA is marketed in the U.S. by Tetraphase Pharmaceuticals, Inc., a wholly owned subsidiary of La Jolla.

Product Candidates

In connection with the acquisition of Tetraphase, we acquired the following product candidates that are in early-stage clinical or preclinical development: (1) TP-6076, a fully-synthetic fluorocycline derivative for the treatment of certain multidrug-resistant gram-negative bacteria; (2) TP-271, a fully-synthetic fluorocycline for the treatment of respiratory disease caused by bacterial biothreat and antibiotic-resistant public health pathogens, as well as bacterial pathogens associated with community-acquired bacterial pneumonia; and (3) TP-2846, a tetracycline for the treatment of acute myeloid leukemia. At this time, there are no active studies nor anticipated future studies for any of these product candidates. We intend to seek out-licensing opportunities for these product candidates, however, at this time, we are unable to predict the likelihood of successfully out-licensing any of these product candidates.

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Components of Our Results of Operations

The following table summarizes our results of operations for each of the periods below (in thousands):

	Three Months Ended									Nine Months Ended
	September 30,									September 30,
	2020			2019			Change			2020			2019			Change
Net product sales	$	9,072		$	5,706		$	3,366		$	22,468		$	15,804		$	6,664
Cost of product sales		2,489			554			1,935			4,013			1,605			2,408
Research and development expense		3,617			21,182			(17,565	)		21,581			64,469			(42,888	)
Selling, general and administrative expense		12,493			10,782			1,711			29,322			34,425			(5,103	)
Other income (expense), net		(2,233	)		(2,362	)		129			(3,495	)		(6,580	)		3,085
Net loss	$	(11,760	)	$	(29,174	)	$	17,414		$	(35,943	)	$	(91,275	)	$	55,332

Financial results for periods ending September 30, 2020 and beyond include Tetraphase’s financial results subsequent to the acquisition closing date of July 28, 2020. Net loss for the three and nine months ended September 30, 2020 includes purchase price accounting adjustments of $1.5 million. Net loss for the three and nine months ended September 30, 2020 also includes $0.3 million and $0.9 million of one-time acquisition-related expenses. We expect our research and development expense and selling, general and administrative expense to decrease in the near term as we realize the benefits from integrating the operations of La Jolla and Tetraphase.

Net Product Sales

Net product sales consist solely of revenue recognized from sales of GIAPREZA and XERAVA to hospitals in the U.S. through a network of specialty and wholesaler distributors (“Customers”). GIAPREZA U.S. net sales were $7.2 million and $20.6 million for the three and nine months ended September 30, 2020, respectively, compared to $5.7 million and $15.8 million, respectively, for the same periods in 2019. Subsequent to July 28, 2020 and through September 30, 2020, XERAVA U.S. net sales were $1.9 million. XERAVA U.S. net sales were $2.7 million and $5.9 million for the three and nine months ended September 30, 2020, respectively, compared to $1.0 million and $2.1 million, respectively, for the same periods in 2019.

Cost of Product Sales

Cost of product sales consists primarily of expense associated with: (i) royalties payable to George Washington University, Harvard University and Paratek Pharmaceuticals, Inc.; (ii) the inventory fair value step-up adjustment recorded in connection with the acquisition of Tetraphase; (iii) manufacturing; (iv) regulatory fees; and (v) shipping and distribution. Cost of product sales was $2.5 million and $4.0 million for the three and nine months ended September 30, 2020, respectively, compared to $0.6 million and $1.6 million, respectively, for the same periods in 2019. Subsequent to July 28, 2020 and through September 30, 2020, cost of product sales includes $1.2 million of the inventory fair value step-up adjustment recorded in connection with the acquisition of Tetraphase.

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Research and Development Expense

Research and development expense consists of non-personnel and personnel expenses. The following table summarizes these expenses for each of the periods below (in thousands):

	Three Months Ended							Nine Months Ended
	September 30,							September 30,
	2020		2019		Change			2020		2019		Change
Non-personnel expense:
GIAPREZA	$	832	$	1,641	$	(809	)	$	3,675	$	4,662	$	(987	)
XERAVA		511		-		511			511		-		511
LJPC-0118		9		424		(415	)		926		1,559		(633	)
LJPC-401		-		4,552		(4,552	)		1,531		13,347		(11,816	)
Other programs		28		1,204		(1,176	)		28		5,047		(5,019	)
Facility		312		1,879		(1,567	)		2,872		5,455		(2,583	)
Other		198		1,089		(891	)		672		3,007		(2,335	)
Total non-personnel expense	$	1,890	$	10,789	$	(8,899	)	$	10,215	$	33,077	$	(22,862	)
Personnel expense:
Salaries, bonuses and benefits		1,036		6,224		(5,188	)		8,148		19,330		(11,182	)
Share-based compensation expense		691		4,169		(3,478	)		3,218		12,062		(8,844	)
Total personnel expense	$	1,727	$	10,393	$	(8,666	)	$	11,366	$	31,392	$	(20,026	)
Total research and development expense	$	3,617	$	21,182	$	(17,565	)	$	21,581	$	64,469	$	(42,888	)

During the three and nine months ended September 30, 2020, total research and development non-personnel expense decreased primarily as a result of decreases in program-related expenses as we de-prioritized our product candidates and focused on the commercialization of GIAPREZA and XERAVA. Further, facility-related expenses decreased primarily as a result of the termination of our San Diego Lease effective August 31, 2020 (see Note 6 to the condensed consolidated financial statements included in Item 1 of this Quarterly Report on Form 10-Q).

During the three and nine months ended September 30, 2020, total research and development personnel expense, including share-based compensation expense, decreased as a result of reduced headcount in 2020 from a Company-wide realignment in November 2019, partially offset by: (i) $2.4 million of one-time charges in 2020 resulting from a reduction of headcount from a Company-wide realignment in May 2020; and (ii) $0.8 million of one-time charges in 2020 resulting from a reduction of headcount from combining La Jolla and Tetraphase personnel in July 2020.

Selling, General and Administrative Expense

Selling, general and administrative expense consists of non-personnel and personnel expenses. The following table summarizes these expenses for each of the periods below (in thousands):

	Three Months Ended							Nine Months Ended
	September 30,							September 30,
	2020		2019		Change			2020		2019		Change
Non-personnel expense:
Professional fees	$	1,946	$	981	$	965		$	4,173	$	3,076	$	1,097
Facility		941		394		547			1,988		1,167		821
Sales and marketing		782		1,509		(727	)		2,593		5,001		(2,408	)
Other		1,045		669		376			1,970		1,856		114
Total non-personnel expense	$	4,714	$	3,553	$	1,161		$	10,724	$	11,100	$	(376	)
Personnel expense:
Salaries, bonuses and benefits		7,082		4,979		2,103			16,431		15,865		566
Share-based compensation expense		697		2,250		(1,553	)		2,167		7,460		(5,293	)
Total personnel expense	$	7,779	$	7,229	$	550		$	18,598	$	23,325	$	(4,727	)
Total selling, general and administrative expense	$	12,493	$	10,782	$	1,711		$	29,322	$	34,425	$	(5,103	)

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During the three months ended September 30, 2020, total selling, general and administrative non-personnel expense increased primarily as a result of increases in professional fee-related expenses, partially offset by decreases in sales and marketing-related expenses. During the nine months ended September 30, 2020, total selling, general and administrative non-personnel expense decreased primarily as a result of decreases in sales and marketing-related expenses, partially offset by increases in professional fee-related expenses. During the three and nine months ended September 30, 2020, La Jolla incurred one-time acquisition-related expenses of $0.3 million and $0.9 million, respectively. During the three and nine months ended September 30, 2020, facility-related expenses allocated to selling, general and administrative increased as a result of increased selling, general and administrative headcount relative to research and development headcount.

During the three months ended September 30, 2020, total selling, general and administrative personnel expense, including share-based compensation expense, increased as a result of $2.3 million of one-time charges resulting from a reduction of headcount from combining La Jolla and Tetraphase personnel in July 2020, partially offset by reduced headcount in 2020 from Company-wide realignments in November 2019 and May 2020. During the nine months ended September 30, 2020, total selling, general and administrative personnel expense, including share-based compensation expense, decreased as a result of reduced headcount in 2020 from a Company-wide realignment in November 2019, partially offset by: (i) $1.7 million of one-time charges in 2020 resulting from a reduction of headcount from a Company-wide realignment in May 2020; and (ii) $2.3 million of one-time charges in 2020 resulting from a reduction of headcount from combining La Jolla and Tetraphase personnel in July 2020.

Other Income (Expense), Net

Other income (expense), net consists of the receipt of distributions in connection with our non-voting profits interest in a related party, interest accrued for our deferred royalty obligation, gains and losses associated with the disposal of certain property and equipment, and interest income generated from cash held in savings accounts.

During the three months ended September 30, 2020, other expense, net remained consistent compared to the same period in 2019. During the nine months ended September 30, 2020, other expense, net decreased to $3.5 million from $6.6 million for the same period in 2019, a decrease of $3.1 million. This decrease was primarily due to the receipt of distributions of $4.1 million in connection with the Company’s non-voting profits interest in a related party and a $1.0 million decrease in interest expense for our deferred royalty obligation, partially offset by a $1.6 million decrease in interest income generated from cash held in savings accounts.

Liquidity and Capital Resources

As of September 30, 2020 and December 31, 2019, we had cash and cash equivalents of $27.8 million and $87.8 million, respectively. On July 28, 2020, La Jolla completed the acquisition of Tetraphase for $43.0 million in upfront cash. Based on our current operating plans and projections, we believe that our existing cash and cash equivalents will be sufficient to fund operations for at least one year from the date this Quarterly Report on Form 10-Q is filed with the SEC.

Net cash used for operating activities for the three and nine months ended September 30, 2020 was $9.8 million and $30.4 million, respectively, down 48% and 55%, respectively, from the same periods in 2019. Net cash used for operating activities for the three and nine months ended September 30, 2020, excluding cash expenditures related to reductions in headcount and transaction costs associated with the Tetraphase acquisition, was $5.6 million and $21.6 million, respectively, down 70% and 67%, respectively, from the same periods in 2019. Cash expenditures related to reductions in headcount were $3.3 million and $7.9 million for the three and nine months ended September 30, 2020, respectively, and zero and $2.3 million, respectively, for the same periods in 2019. Cash expenditures related to transaction costs associated with the Tetraphase acquisition were $0.9 million for the three and nine months ended September 30, 2020.

Cash used for investing activities was $30.9 million and $0.7 million for the nine months ended September 30, 2020 and 2019, respectively. The increase in cash used for investing activities resulted primarily from the acquisition of Tetraphase, net of cash, cash equivalents and restricted cash acquired, partially offset by proceeds from the sale of property and equipment.

Cash provided by financing activities was $1.0 million and $0.7 million for the nine months ended September 30, 2020 and 2019, respectively. The increase in cash provided by financing activities was primarily the result of net proceeds from issuance of common stock under employee stock plans.

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Since January 2012, when the Company was effectively restarted, through September 30, 2020, our cash used in operating activities was $456.3 million. As of September 30, 2020, we had an accumulated deficit of $1,073.3 million and have financed our operations through public and private offerings of securities, a royalty financing, revenues from net product sales, interest income on invested cash balances and other income.

Contractual Obligations

HealthCare Royalty Partners Royalty Agreement

In May 2018, we closed a $125.0 million royalty financing agreement (the “Royalty Agreement”) with HealthCare Royalty Partners (“HCR”). Under the terms of the Royalty Agreement, we received $125.0 million in exchange for tiered royalty payments on worldwide net sales of GIAPREZA. HCR is entitled to receive quarterly royalties on worldwide net sales of GIAPREZA beginning April 1, 2018. Quarterly payments to HCR under the Royalty Agreement start at a maximum royalty rate, with step-downs based on the achievement of annual net product sales thresholds. Through December 31, 2021, the royalty rate will be a maximum of 10%. Starting January 1, 2022, the maximum royalty rate may increase by 4% if an agreed-upon, cumulative net product sales threshold has not been met, and, starting January 1, 2024, the maximum royalty rate may increase by an additional 4% if a different agreed-upon, cumulative net product sales threshold has not been met. The Royalty Agreement is subject to maximum aggregate royalty payments to HCR of $225.0 million. The Royalty Agreement expires upon the first to occur of January 1, 2031 or when the maximum aggregate royalty payments have been made. The Royalty Agreement was entered into by our wholly owned subsidiary, La Jolla Pharma, LLC, and HCR has no recourse under the Royalty Agreement against La Jolla Pharmaceutical Company or any assets other than GIAPREZA.

In-license Agreements

George Washington University License

In December 2014, the Company entered into a patent license agreement with George Washington University (“GW”), which subsequently was amended and restated (the “GW License”) and assigned to La Jolla Pharma, LLC. Pursuant to the GW License, GW exclusively licensed to the Company certain intellectual property rights relating to GIAPREZA, including the exclusive rights to certain issued patents and patent applications covering GIAPREZA. Under the GW License, the Company is obligated to use commercially reasonable efforts to develop, commercialize, market and sell GIAPREZA. The Company has paid a one-time license initiation fee, annual maintenance fees, an amendment fee, additional payments following the achievement of certain development and regulatory milestones and royalties. As a result of the European Commission’s approval of GIAPREZA in August 2019, the Company made a milestone payment to GW in the amount of $0.5 million in the first quarter of 2020. The Company is obligated to pay a 6% royalty on net sales of GIAPREZA. The obligation to pay royalties under this agreement extends through the last-to-expire patent covering GIAPREZA.

Harvard University License

In August 2006, Tetraphase entered into a license agreement with Harvard University (“Harvard”), which was subsequently amended and restated (the “Harvard License”). Pursuant to the Harvard License, Harvard exclusively licensed to the Company certain intellectual property rights relating to tetracycline-based products, including XERAVA, including the exclusive rights to certain issued patents and patent applications covering such products. Under the Harvard License, the Company is obligated to use commercially reasonable efforts to develop, commercialize, market and sell tetracycline-based products, including XERAVA. For each product covered by the Harvard License, the Company is obligated to make certain payments totaling up to approximately $15.1 million upon the achievement of certain clinical development and regulatory milestones, and to pay Harvard tiered royalties at percentages in the single digits based on net sales, if any, of tetracycline-based products, including XERAVA, by the Company, its affiliates and sublicensees in certain circumstances. The Company is also obligated to pay Harvard a specified share of non-royalty sublicensing and other revenues that it receives from sublicensees for the grant of sublicenses in certain circumstances, including the Everest License (see below), and to reimburse Harvard for specified patent prosecution and maintenance costs. The obligation to pay royalties under this agreement extends through the last-to-expire patent covering tetracycline-based products, including XERAVA.

Paratek Pharmaceuticals, Inc. License

In March 2019, Tetraphase entered into a license agreement with Paratek Pharmaceuticals, Inc. (“Paratek”), which was subsequently amended and restated (the “Paratek License”). Pursuant to the Paratek License, Paratek non-exclusively licensed to the Company certain intellectual property rights relating to XERAVA, including non-exclusive rights to certain issued patents and patent applications covering XERAVA. Under the

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Paratek License, the Company is obligated to use commercially reasonable efforts to develop, commercialize, market and sell XERAVA. The Company is obligated pay Paratek royalties at a low single digit percent based on net sales of XERAVA in the U.S. The obligation to pay royalties under this agreement extends through the last-to-expire patent covering XERAVA.

Out-license Agreement

Everest Medicines Limited License

In February 2018, Tetraphase entered into a license agreement with Everest Medicines Limited (“Everest”), which was subsequently amended and restated (the “Everest License”). Pursuant to the Everest License, Tetraphase granted Everest an exclusive license to develop and commercialize XERAVA for the treatment of cIAI and other indications in mainland China, Taiwan, Hong Kong, Macau, South Korea, Singapore, the Malaysian Federation, the Kingdom of Thailand, the Republic of Indonesia, the Socialist Republic of Vietnam and the Republic of the Philippines (collectively, the “Territory”). The Company is eligible to receive up to an aggregate of $11.0 million in future clinical development and regulatory milestone payments and up to an aggregate of $20.0 million in sales milestone payments. The Company is also entitled to receive tiered royalties from Everest at percentages in the low double digits on sales, if any, in the Territory of products containing eravacycline. Royalties are payable with respect to each jurisdiction in the Territory until the latest to occur of: (1) the last-to-expire of specified patent rights in such jurisdiction in the Territory; (2) expiration of marketing or regulatory exclusivity in such jurisdiction in the Territory; or (3) 10 years after the first commercial sale of a product in such jurisdiction in the Territory. In addition, royalties payable under the Everest License will be subject to reduction on account of generic competition and after patent expiration in a jurisdiction, with any such reductions capped at certain percentages of the amounts otherwise payable during the applicable royalty payment period. Pursuant to the Everest License, Everest will be solely responsible for the development and commercialization of licensed products in the Territory. The Company agreed to use commercially reasonable efforts to manufacture drug product for clinical development, which will be paid by Everest at the cost to manufacture, as well as manufacture drug product for commercial supply, which will be paid by Everest at cost plus a reasonable margin. The Company has not yet entered into a commercial supply agreement with Everest, which would set the quantity and timing of commercial supply. Subsequent to July 28, 2020 and through September 30, 2020, the Company has not received any payments from Everest related to either royalties or clinical development and regulatory milestones.

Off−Balance Sheet Arrangements

We have no off-balance sheet arrangements that have, or are reasonably likely to have, a current or future effect on our financial condition, changes in our financial condition, expenses, results of operations, liquidity, capital expenditures or capital resources.

Critical Accounting Estimates

We believe the estimates, assumptions and judgments involved in the accounting policies described in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Item 7 of our Form 10-K for the year ended December 31, 2019 are most critical to understanding and evaluating our reported financial results. During the three and nine months ended September 30, 2020, other than the business combinations accounting policy described below, there have been no material changes to the critical accounting policies and estimates as described in Item 7 of our Form 10-K for the year ended December 31, 2019.

The Company accounts for business combinations using the acquisition method pursuant to FASB ASC Topic 805. This method requires, among other things, that results of operations of acquired companies are included in La Jolla's financial results beginning on the respective acquisition dates, and that assets acquired and liabilities assumed are recognized at fair value as of the acquisition date. Intangible assets acquired in a business combination are recorded at fair value using a discounted cash flow model. The discounted cash flow model requires assumptions about the timing and amount of future net cash flows, the cost of capital and terminal values from the perspective of a market participant. Each of these factors can significantly affect the value of the intangible asset. Any excess of the fair value of consideration transferred (the “Purchase Price”) over the fair values of the net assets acquired is recognized as goodwill. Contingent consideration liabilities are recognized as part of the Purchase Price at the estimated fair value on the acquisition date. Subsequent changes to the fair value of contingent consideration liabilities will be included in other income (expense), net in the consolidated statements of operations. The fair value of assets acquired and liabilities assumed in certain cases may be subject to revision based on the final determination of fair value during a period of time not to exceed 12 months from the acquisition

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date. Legal costs, due diligence costs, business valuation costs and all other acquisition-related costs are expensed when incurred.

Recent Accounting Pronouncements

See Note 2 to our condensed consolidated financial statements included in Item 1 of this Quarterly Report on Form 10-Q.

Item 3. Quantitative and Qualitative Disclosure about Market Risk

We are a smaller reporting company, as defined by Rule 12b-2 under the Securities and Exchange Act of 1934 and in Item 10(f)(1) of Regulation S-K, and are not required to provide the information under this item.

Item 4. Controls and Procedures

Management’s Evaluation of our Disclosure Controls and Procedures

Our management, with the participation of our principal executive officer and our principal financial officer, evaluated, as of the end of the period covered by this Quarterly Report on Form 10-Q, the effectiveness of our disclosure controls and procedures. Based on that evaluation of our disclosure controls and procedures as of September 30, 2020, our principal executive officer and principal financial officer concluded that our disclosure controls and procedures as of such date are effective at the reasonable assurance level. The term “disclosure controls and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934 (the “Exchange Act”), means controls and other procedures of a company that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act are recorded, processed, summarized and reported within the time periods specified in the U.S. Securities and Exchange Commission’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by us in the reports we file or submit under the Exchange Act is accumulated and communicated to our management, including our principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosure. Management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives, and our management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

Changes in Internal Control over Financial Reporting

There was no change in our internal control over financial reporting that occurred during our most recent quarter that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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PART II. OTHER INFORMATION

Item 1. Legal Proceedings

From time to time, we may become subject to claims and litigation arising in the ordinary course of business. We are not a party to any material legal proceedings, nor are we aware of any material pending or threatened litigation.

Item 1A. Risk Factors

An investment in shares of our common stock involves a high degree of risk. You should carefully consider the risks and uncertainties described below and the other information contained in this Quarterly Report on Form 10-Q before deciding to invest in shares of our common stock. The risks described below are not the only ones facing our Company. Additional risks not presently known to us or that we currently consider immaterial may also adversely affect our business. We have attempted to identify below the major factors that could cause differences between actual and planned or expected results, but we cannot assure you that we have identified all of those factors. Our business, financial condition, results of operations and prospects could be materially adversely affected by any of these risks or uncertainties. In such case, the trading price of shares of our common stock could decline, and you could lose all or part of your investment.

RISKS RELATED TO OUR BUSINESS

We are substantially dependent on the commercial success of GIAPREZA^TM (angiotensin II) and XERAVA^TM (eravacycline).

The success of our business is substantially dependent on our ability to successfully commercialize GIAPREZA^TM (angiotensin II) and XERAVA^TM (eravacycline), our commercial products. The market for effective pharmaceutical sales and marketing professionals is competitive, and maintaining these capabilities is expensive and challenging. If we are unable to maintain an effective sales and marketing organization, GIAPREZA and XERAVA sales could be adversely affected, and our business could suffer.

In the U.S. and most major foreign markets, drugs like GIAPREZA and XERAVA that are administered in the hospital must be purchased by the hospital and generally are not directly reimbursed by third-party payors. Hospitals instead are reimbursed for patient cases based on patients’ diagnosed conditions under the U.S. Medicare diagnosis-related group (“DRG”) system or other like systems for non-Medicare patients in the U.S. and in most major foreign markets. Adoption of new drugs that are administered in the hospital generally occurs more slowly than adoption of new drugs that are taken on an outpatient basis, which generally are paid for by third-party payors. If we are unsuccessful at convincing hospitals and health care providers to increase their rate of adoption of GIAPREZA and XERAVA, our business will suffer.

Catecholamines (primarily norepinephrine), which are available as generics and inexpensive, are typically used in the first line to treat distributive shock, while Vasostrict^® (Endo International plc) is typically used in the second line. In the randomized, Phase 3 study ATHOS-3, GIAPREZA demonstrated clinical benefit in patients who were not adequately responding to available vasopressors, including catecholamines and Vasostrict. GIAPREZA’s principle competition as a treatment in patients not adequately responding to available vasopressors is the use of these same vasopressors, particularly norepinephrine, at increased doses. If we are unable to successfully change treatment practices, the commercial prospects for GIAPREZA will be limited, and our business will suffer.

XERAVA competes with a number of antibiotics that are currently marketed for the treatment of cIAI and other multidrug resistant infections, including: AVYCAZ (ceftazidime and avibactam, marketed by AbbVie Inc.); MERREM IV^® (meropenem, marketed by AstraZeneca PLC); PRIMAXIN^® (imipenem and cilastatin, marketed by Merck & Co., Inc.); RECARBRIO™ (imipenem, cilastatin, and relebactam, marketed by Merck & Co., Inc.); TYGACIL^® (tigecycline, marketed by Pfizer Inc.); VABOMERE™ (meropenem and vaborbactam, marketed by Melinta Therapeutics, Inc.); ZERBAXA^® (ceftolozane and tazobactam, marketed by Merck & Co., Inc.); ZOSYN^® (piperacillin and tazobactam, marketed by Pfizer Inc.); and current and future generic versions of marketed antibiotics. If we are unable to successfully change treatment practices, the commercial prospects for XERAVA will be limited, and our business will suffer.

Our estimates of the potential market sizes for GIAPREZA and XERAVA are based on prescription and sales data for relevant in-market products, the results of clinical studies, medical literature and other information. If

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the potential market sizes for GIAPREZA and XERAVA are smaller than our estimates, the commercial prospects for GIAPREZA and XERAVA may be limited, and our business may suffer.

The commercial success of GIAPREZA and XERAVA will depend on our ability to obtain an uninterrupted supply of GIAPREZA and XERAVA from our contract manufacturers.

We do not currently own or operate manufacturing facilities for the production of GIAPREZA or XERAVA. We rely on sole-source third-party manufacturers to produce GIAPREZA and XERAVA and expect to continue to do so to meet our development and commercial needs. In all of our manufacturing agreements, we require that third-party contract manufacturers produce active pharmaceutical ingredients (“APIs”) and drug products in accordance with the U.S. Food and Drug Administration’s (“FDA’s”) current Good Manufacturing Practices (“cGMPs”) and all other applicable laws and regulations. The long-term commercial success of GIAPREZA and XERAVA will depend in part on the ability of our contract manufacturers to supply cGMP-compliant API and drug product without interruption. If there is an interruption in the supply of GIAPREZA and XERAVA from our contract manufacturers, our business will suffer.

Our ability to realize the benefits from the acquisition of Tetraphase is substantially dependent on the commercial success of XERAVA and the cost savings resulting from the timely and effective integration of the operations of La Jolla and Tetraphase.

Our ability to realize the benefits from the acquisition of Tetraphase is substantially dependent on our ability to successfully commercialize XERAVA. Combining with La Jolla may not accelerate XERAVA’s availability to patients in need, and our presence in the hospital may not increase with a second innovative therapy. If we are unsuccessful at convincing hospitals and health care providers to increase their rate of adoption of XERAVA, our sales could be adversely affected, and our business could suffer.

Further, our ability to realize the benefits from the acquisition of Tetraphase is substantially dependent on the cost savings resulting from the timely and effective integration of the operations of La Jolla and Tetraphase. The process of integrating the operations of La Jolla and Tetraphase could encounter unexpected costs and delays, which include: the loss of key personnel; the loss of key customers; the loss of key suppliers; and unanticipated issues in integrating sales, marketing and administrative functions. If we are unable to timely and effectively integrate the operations of La Jolla and Tetraphase, our costs could be adversely affected, and our business could suffer. Further, even if the integration is timely and effective, we may never realize the cost savings expected from the integration of the operations of our two companies.

GIAPREZA’s and XERAVA’s market exclusivity periods will depend on the validity and enforceability of issued and pending patents covering GIAPREZA and XERAVA.

As of September 30, 2020, we owned or had in-licensed 12 issued U.S. patents, 9 pending U.S. patent applications, 5 issued foreign patents and 45 pending foreign patent applications that cover GIAPREZA. The U.S. patents and patent applications expire between 2029 and 2040, and the foreign patents and patent applications expire between 2034 and 2040.

As of September 30, 2020, we owned or had in-licensed 3 issued U.S. patents, 1 pending U.S. patent applications, 16 issued foreign patents and 6 pending foreign patent applications that cover XERAVA. The U.S. patents and patent applications expire between 2023 and 2030, and the foreign patents and patent applications expire between 2029 and 2040.

As of September 30, 2020, we have also filed applications for Supplementary Protection Certificates based on European Patent No. 2323972 covering the composition of matter and use of XERAVA. Some applications have been granted and others are pending.

As of September 30, 2020, we also owned 1 pending U.S. patent application and 9 pending foreign patent applications that cover crystalline forms of eravacycline. Any U.S. patents that may be issued will expire in 2037 absent any adjustment, extension or filing of a terminal disclaimer. Likewise, any foreign patents that may be issued will expire in 2037.

Although we believe the bases for these patents and patent applications are sound, they are untested, and there is no assurance that they will not be successfully challenged. There can be no assurance that any patent previously issued will protect GIAPREZA or XERAVA from generic competition or that any patent application will

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result in an issued patent that will protect GIAPREZA or XERAVA from generic competition. Furthermore, there can be no assurance that GIAPREZA or XERAVA will not be held to infringe valid patents held by others. If our owned and in-licensed intellectual property do not protect GIAPREZA or XERAVA from generic competition, GIAPREZA or XERAVA sales will decline, and our business will suffer. If either GIAPREZA or XERAVA is held to infringe valid patents held by others, we could be subject to liability, and our business could suffer.

Product liability lawsuits against us could cause us to incur substantial liabilities and reduce GIAPREZA and XERAVA sales.

Patients suffering from distributive shock are gravely ill and have a high mortality rate. Although 28-day mortality in patients treated with GIAPREZA was lower than in patients treated with placebo in the randomized, Phase 3 study ATHOS-3, there was a higher incidence of arterial and venous thrombotic and thromboembolic events in patients treated with GIAPREZA in this study. Some patients who are treated with GIAPREZA will die due to their underlying illness or suffer adverse events (which may or may not be drug related). Additionally, patients suffering from cIAI may become gravely ill and may die due to underlying illness or suffer adverse events (which may or may not be drug related). As such, we may face product liability lawsuits. Although we carry product liability insurance, product liability lawsuits against us could cause us to incur substantial liabilities and reduce GIAPREZA and XERAVA sales. Furthermore, any such lawsuits could impair our business reputation and result in the initiation of investigations by regulators.

Our ability to continue commercializing GIAPREZA and XERAVA is dependent on our fulfillment of contractual obligations to certain parties.

HealthCare Royalty Partners Royalty Agreement

In May 2018, we closed a $125.0 million royalty financing agreement (the “Royalty Agreement”) with HealthCare Royalty Partners (“HCR”). Under the terms of the Royalty Agreement, we received $125.0 million in exchange for tiered royalty payments on worldwide net sales of GIAPREZA. HCR is entitled to receive quarterly royalties on worldwide net sales of GIAPREZA beginning April 1, 2018. Quarterly payments to HCR under the Royalty Agreement start at a maximum royalty rate, with step-downs based on the achievement of annual net product sales thresholds. Through December 31, 2021, the royalty rate will be a maximum of 10%. Starting January 1, 2022, the maximum royalty rate may increase by 4% if an agreed-upon, cumulative net product sales threshold has not been met, and, starting January 1, 2024, the maximum royalty rate may increase by an additional 4% if a different agreed-upon, cumulative net product sales threshold has not been met. The Royalty Agreement is subject to maximum aggregate royalty payments to HCR of $225.0 million. The Royalty Agreement expires upon the first to occur of January 1, 2031 or when the maximum aggregate royalty payments have been made. The Royalty Agreement was entered into by our wholly-owned subsidiary, La Jolla Pharma, LLC, and HCR has no recourse under the Royalty Agreement against La Jolla Pharmaceutical Company or any assets other than GIAPREZA. However, under the terms of the Royalty Agreement, La Jolla Pharma, LLC has certain obligations, including the obligation to use commercially reasonable and diligent efforts to commercialize GIAPREZA. If La Jolla Pharma, LLC is held to not have met these obligations, HCR would have the right to terminate the Royalty Agreement and demand payment from La Jolla Pharma, LLC of either $125.0 million or $225.0 million (depending on which obligation La Jolla Pharma, LLC is held to not have met), minus aggregate royalties already paid to HCR. In the event that La Jolla Pharma, LLC fails to timely pay such amount if and when due, HCR would have the right to foreclose on the GIAPREZA-related assets.

George Washington University License

In December 2014, we entered into a patent license agreement with George Washington University (“GW”), which was subsequently amended and restated (the “GW License”) and assigned to La Jolla Pharma, LLC. Pursuant to the GW License, GW exclusively licensed to us certain intellectual property rights relating to GIAPREZA, including the exclusive rights to certain issued patents and patent applications covering GIAPREZA. Under the GW License, La Jolla Pharma, LLC is obligated to use commercially reasonable efforts to develop, commercialize, market and sell GIAPREZA and make certain payments to GW, including a 6% royalty on net sales of GIAPREZA. If La Jolla Pharma, LLC is held to not have met its obligations, GW could terminate the GW License and La Jolla Pharma, LLC would no longer have rights to the GW issued patents and patent applications covering GIAPREZA.

Harvard University License

In August 2006, Tetraphase entered into a license agreement with Harvard University (“Harvard”), which was subsequently amended and restated (the “Harvard License”). Pursuant to the Harvard License, Harvard

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exclusively licensed to the Company certain intellectual property rights relating to tetracycline-based products, including XERAVA, including the exclusive rights to certain issued patents and patent applications covering such products. Under the Harvard License, the Company is obligated to use commercially reasonable efforts to develop, commercialize, market and sell tetracycline-based products, including XERAVA. For each product covered by the Harvard License, the Company is obligated to make certain payments totaling up to approximately $15.1 million upon the achievement of certain clinical development and regulatory milestones, and to pay Harvard tiered royalties at percentages in the single digits based on net sales, if any, of tetracycline-based products, including XERAVA, by the Company, its affiliates and sublicensees in certain circumstances. The Company is also obligated to pay Harvard a specified share of non-royalty sublicensing and other revenues that it receives from sublicensees for the grant of sublicenses in certain circumstances, including the Everest License (see below), and to reimburse Harvard for specified patent prosecution and maintenance costs. The obligation to pay royalties under this agreement extends through the last-to-expire patent covering tetracycline-based products, including XERAVA. If Tetraphase is held to not have met its obligations, Harvard could terminate the Harvard License and Tetraphase would no longer have rights to the Harvard issued patents and patent applications covering XERAVA.

Paratek Pharmaceuticals, Inc. License

In March 2019, Tetraphase entered into a license agreement with Paratek Pharmaceuticals, Inc. (“Paratek”), which was subsequently amended and restated (the “Paratek License”). Pursuant to the Paratek License, Paratek non-exclusively licensed to the Company certain intellectual property rights relating to XERAVA, including non-exclusive rights to certain issued patents and patent applications covering XERAVA. Under the Paratek License, the Company is obligated to use commercially reasonable efforts to develop, commercialize, market and sell XERAVA. The Company is obligated pay Paratek royalties at a low single digit percent based on net sales of XERAVA in the U.S. The obligation to pay royalties under this agreement extends through the last-to-expire patent covering XERAVA. If Tetraphase is held to not have met its obligations, Paratek could terminate the Paratek License and Tetraphase would no longer have rights to the Paratek issued patents and patent applications covering XERAVA.

Everest Medicines Limited License

In February 2018, Tetraphase entered into a license agreement with Everest Medicines Limited (“Everest”), which was subsequently amended and restated (the “Everest License”). Pursuant to the Everest License, Tetraphase granted Everest an exclusive license to develop and commercialize XERAVA for the treatment of cIAI and other indications in mainland China, Taiwan, Hong Kong, Macau, South Korea, Singapore, the Malaysian Federation, the Kingdom of Thailand, the Republic of Indonesia, the Socialist Republic of Vietnam and the Republic of the Philippines (collectively, the “Territory”). The Company is eligible to receive up to an aggregate of $11.0 million in future clinical development and regulatory milestone payments and up to an aggregate of $20.0 million in sales milestone payments. The Company is also entitled to receive tiered royalties from Everest at percentages in the low double digits on sales, if any, in the Territory of products containing eravacycline. Royalties are payable with respect to each jurisdiction in the Territory until the latest to occur of: (1) the last-to-expire of specified patent rights in such jurisdiction in the Territory; (2) expiration of marketing or regulatory exclusivity in such jurisdiction in the Territory; or (3) 10 years after the first commercial sale of a product in such jurisdiction in the Territory. In addition, royalties payable under the Everest License will be subject to reduction on account of generic competition and after patent expiration in a jurisdiction, with any such reductions capped at certain percentages of the amounts otherwise payable during the applicable royalty payment period. Pursuant to the Everest License, Everest will be solely responsible for the development and commercialization of licensed products in the Territory. The Company agreed to use commercially reasonable efforts to manufacture drug product for clinical development, which will be paid by Everest at the cost to manufacture, as well as manufacture drug product for commercial supply, which will be paid by Everest at cost plus a reasonable margin. The Company has not yet entered into a commercial supply agreement with Everest, which would set the quantity and timing of commercial supply. Subsequent to July 28, 2020 and through September 30, 2020, the Company has not received any payments from Everest related to either royalties or clinical development and regulatory milestones. If Tetraphase is held to not have met its obligations, the commercial prospects for XERAVA in the Territory will be limited, and our business will suffer.

Our ability to hire and retain key employees is uncertain.

As of October 30, 2020, we employed 65 employees. The market for effective professionals in the pharmaceutical industry is competitive, and hiring and retaining these professionals is expensive and challenging. If we are unable to hire and retain key employees, we may be unable to effectively execute on our operating plan, and our business could suffer.

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Business interruptions resulting from geopolitical actions, natural disasters, public health crises or other catastrophic events could have an adverse impact on our business.

Business interruptions resulting from geopolitical actions, such as war and terrorism, natural disasters, public health crises, such as a pandemic, or other catastrophic events could have an adverse impact on our business. For example, if one of these events were to adversely affect one of our contract manufacturers, our supply of GIAPREZA and XERAVA could be interrupted. Furthermore, in the case of a pandemic, the ability of our critical care specialists to access hospitals and call on physicians may be curtailed, which may adversely affect product sales.

Our overall financial performance, including but not limited to net product sales and net cash used for operating activities, may not meet our expectations.

Our overall financial performance, including but not limited to net product sales and net cash used for operating activities, is difficult to predict and may fluctuate from quarter to quarter and year to year. Historical financial performance may not be indicative of future financial performance. For example, our net product sales may be below expectations, and our costs to operate our business, including cost of product sales, research and development expenses and selling, general and administrative expenses, could exceed our estimates. If our overall financial performance does not meet our expectations, our business could suffer. 

Our capital requirements and our potential need for, and ability to obtain, additional financing are uncertain.

As of September 30, 2020, we had cash of $27.8 million. GIAPREZA and XERAVA are our approved products and our only sources of product revenue. The amount and timing of future funding requirements, if any, will depend on many factors, including the success of our commercialization efforts for GIAPREZA and XERAVA, and our ability to control expenses. If necessary, we will raise additional capital through equity or debt financings or collaboration agreements. We can provide no assurance that additional financing will be available to us on favorable terms, or at all. If we need to raise additional capital and are unable to do so, we may be forced to curtail or cease our operations.

The ongoing COVID-19 pandemic may disrupt our operations and affect our ability to sell GIAPREZA and XERAVA.

We are unable to accurately predict the full impact that the ongoing Coronavirus Disease 2019 (“COVID‑19”) pandemic will have on our results from operations, financial condition and our ability to sell GIAPREZA and XERAVA due to numerous factors that are not within our control, including its duration and severity of the outbreak. Stay-at-home orders, business closures, travel restrictions, supply chain disruptions and employee illness or quarantines could result in disruptions to our operations, which could adversely impact our results from operations and financial condition. In addition, the COVID-19 pandemic has resulted in ongoing volatility in financial markets. If our access to capital is restricted or associated borrowing costs increase as a result of developments in financial markets relating to the COVID-19 pandemic, our operations and financial condition could be adversely impacted.

RISKS RELATED TO OUR INDUSTRY

We are subject to various federal, state and foreign laws and regulations governing the health care industry that could result in substantial penalties for noncompliance.

We are subject to various federal, state and foreign laws and regulations governing the health care industry that could result in substantial penalties for noncompliance. These laws and regulations may impact our ability to operate, including our sales and marketing efforts. In addition, we may be subject to patient privacy regulation by federal, state and foreign governments that govern jurisdictions in which we conduct our business. The laws and regulations that may affect our ability to operate include:

• The federal Anti-Kickback Statute, which prohibits, among other things, persons from soliciting, receiving, offering or paying remuneration, directly or indirectly, in cash or in kind, to induce or reward, or in return for, either the referral of an individual for, or the purchase, order or recommendation of, an item or service reimbursable under a federal health care program, such as the Medicare and Medicaid programs. The term “remuneration” has been broadly interpreted to include anything of value, including for example gifts, cash payments, donations, the furnishing of

29

supplies or equipment, waivers of payment, ownership interests, and providing any item, service or compensation for something other than fair market value.

• Federal false claims and civil monetary penalties laws, including the federal civil False Claims Act, which prohibits anyone from, among other things, knowingly presenting, or causing to be presented, for payment to federal programs (including Medicare and Medicaid) claims for items or services that are false or fraudulent. Although we may not submit claims directly to payors, manufacturers can be held liable under these laws in a variety of ways. These include: providing inaccurate billing or coding information to customers; improperly promoting a product’s off-label use; violating the federal Anti-Kickback Statute; or misreporting pricing information to government programs.

• Provisions of the federal Health Insurance Portability and Accountability Act of 1996 (“HIPAA”), which created new federal criminal statutes that prohibit, among other things, knowingly and willfully executing a scheme to defraud any health care benefit program or making false statements in connection with the delivery of or payment for health care benefits, items or services.

• The federal Physician Payment Sunshine Act requirements, under the Patient Protection and Affordable Care Act (“PPACA”), which require manufacturers of certain drugs and biologics to track and report to U.S. Centers for Medicare & Medicaid Services (“CMS”) payments and other transfers of value they make to U.S. physicians and teaching hospitals as well as physician ownership and investment interests in the manufacturer.

• Various federal, state and foreign data privacy and security laws and regulations. These include provisions of HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act and its implementing regulations (“HITECH”), which impose certain requirements relating to the privacy, security and transmission of individually identifiable health information in the U.S. and the General Data Protection Regulation (“GDPR”) in the European Union that became effective in May 2018. We may not be directly subject to certain of these laws and regulations, such as privacy and security requirements under HIPAA; however, we may be subject to criminal penalties for knowingly, aiding and embedding these violations.

• Section 1927 of the Social Security Act, which requires that manufacturers of drugs and biological products covered by Medicaid report pricing information to CMS on a monthly and quarterly basis, including the best price available to any customer of the manufacturer, with certain exceptions for government programs, and pay prescription rebates to state Medicaid programs based on a statutory formula derived from reported pricing information.

• State and/or foreign law equivalents of each of the above federal laws, such as the recently effective California Consumer Privacy Act, many of which differ from each other in significant ways and may not have the same effect, which complicates our compliance efforts.

If we are found to be in violation of any of the laws or regulations described above or any other laws or regulations that apply to us, we may be subject to substantial penalties, including civil and criminal penalties, damages, fines and possible exclusion from participation in Medicare, Medicaid and other federal health care programs. If we are subjected to substantial penalties, our business will suffer, and we may be forced to curtail or cease our operations

Drug development involves a lengthy and expensive process with an uncertain outcome.

Drug development involves a lengthy and expensive process with an uncertain outcome. Failure can occur at any time during drug development. The results of nonclinical studies and early clinical studies may not be predictive of the results of later-stage clinical studies. For example, the safety or efficacy results of clinical studies do not ensure that later clinical studies will demonstrate similar results. Even if clinical studies demonstrate the safety and efficacy of the product candidate, there is no assurance that such product candidate will receive regulatory approval.

Drugs approved by the FDA, European Commission (“EC”) and/or other regulatory agencies are subject to ongoing regulation.

Any products manufactured or distributed by us pursuant to FDA, EC and/or other regulatory agency approvals may be subject to continuing regulation by such agencies, including record-keeping requirements and reporting of adverse experiences with the drug. Drug manufacturers and their subcontractors are required to

30

register their establishments with the FDA, EC and/or other regulatory agencies and may be subject to periodic unannounced inspections by such agencies for compliance with cGMPs, which impose certain procedural and documentation requirements on us and our third-party manufacturers. Even after regulatory approval is obtained, under certain circumstances, such as later discovery of previously unknown safety risks, the FDA, EC and/or other regulatory agencies can withdraw approval or subject the drug to additional restrictions.

RISKS RELATED TO OWNERSHIP OF OUR COMMON STOCK

The price per share of our common stock may fluctuate significantly, and you may lose all or part of your investment.

The price per share of our common stock may fluctuate significantly, and you may lose all or part of your investment. These fluctuations could be based on various factors, including factors described elsewhere in this Quarterly Report on Form 10-Q and below:

• changes in analyst estimates, ratings and price targets;

• negative press reports or other negative publicity, whether or not true, about our business;

• developments concerning the pharmaceutical and biotechnology industry in general;

• market sentiment towards pharmaceutical and biotechnology stocks;

• developments concerning the overall economy; and

• market sentiment toward equity securities.

We have never paid a dividend on shares of our common stock, and you should rely on price appreciation of shares of our common stock for return on your investment.

We have never paid a dividend on shares of our common stock. Even if we decide to declare and pay dividends, the timing, amount and form of future dividends, if any, will depend on our future results of operations, financial condition, contractual restrictions and other factors. You should not rely on dividend income from shares of our common stock and should rely on price appreciation of shares of our common stock for return on your investment.

Conversion of our convertible preferred stock would result in substantial dilution for our existing shareholders of common stock.

As of September 30, 2020, there were approximately 27.4 million shares of common stock outstanding. We may be required to issue up to approximately 6.7 million additional shares of common stock upon conversion of existing convertible preferred stock. The issuance of these additional shares would represent approximately 20% dilution to our existing shareholders of common stock.

If we need to obtain additional financing in the future, such financing could result in dilution to your investment, adversely affect the price per share of our common stock and/or create future operating and financial restrictions.

As of September 30, 2020, we had cash of $27.8 million. GIAPREZA and XERAVA are our approved products and our only source of product revenue. The amount and timing of future funding requirements, if any, will depend on many factors, including the success of our commercialization efforts for GIAPREZA and XERAVA and our ability to control expenses. If necessary, we will raise additional capital through equity or debt financings. We can provide no assurance that additional financing will be available to us on favorable terms, or at all. If we issue additional equity securities or securities convertible into equity securities, you will suffer dilution to your investment, and such issuance may adversely affect the price per share of our common stock. Any new debt financing we enter into may involve covenants that restrict our operations, which may include limitations on borrowing and specific restrictions on the use of our assets, as well as prohibitions on our ability to create liens or pay dividends.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

None.

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Item 3. Defaults upon Senior Securities

None.

Item 4. Mine Safety Disclosures

Not applicable.

Item 5. Other Information

In connection with the acquisition of Tetraphase, the Company incurred one-time charges related to a reduction in the combined Company’s headcount. For the three and nine months ended September 30, 2020, total expense was comprised of $3.1 million for one-time termination benefits to the affected employees, including severance and health care benefits. As of September 30, 2020, the Company had paid $1.3 million of the $3.1 million cash severance and health care benefits charges, and the remaining $1.8 million of the cash severance and health care benefits charges were included in accrued payroll and related expenses. The Company expects to complete making substantially all of the payments related to this headcount reduction by the end of the second quarter of 2021.

Item 6. Exhibits

Exhibit No.	Exhibit Description
10.1+	Employment Offer Letter by and between La Jolla Pharmaceutical Company and Larry Edwards dated as of July 28, 2020
31.1	Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2	Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1	Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101.INS	Inline XBRL Instance Document
101.SCH	Inline XBRL Taxonomy Extension Schema Document
101.CAL	Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF	Inline XBRL Taxonomy Extension Definition Linkbase Document
101.LAB	Inline XBRL Taxonomy Extension Label Linkbase Document
101.PRE	Inline XBRL Taxonomy Extension Presentation Linkbase Document
104	Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)
+	Indicates a management contract or compensatory plan or arrangement

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

			La Jolla Pharmaceutical Company
Date:	November 9, 2020	By:	/s/    Larry Edwards
			Larry Edwards
			President and Chief Executive Officer
			(principal executive officer)
			/s/    Michael Hearne
			Michael Hearne
			Chief Financial Officer
			(principal financial and accounting officer)

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EX-10.1

Exhibit 10.1

July 27, 2020

Larry Edwards

ledwards@tphase.com

Dear Larry:

On behalf of the Board of Directors, it is with pleasure that I offer you the position of President and Chief Executive Officer of La Jolla Pharmaceutical Company ("La Jolla") effective on the closing of La Jolla's acquisition of Tetraphase Pharmaceuticals, Inc. (the "Effective Date").

The terms of this offer of employment are as follows:

1. Position: You will serve as the President and Chief Executive Officer of La Jolla, and you will report to La Jolla's Board of Directors (the "Board").

2. Base Salary: Your annualized base salary will be $500,000 ("Base Salary"). An amount equal to 1/24th of the Base Salary will be paid to you twice per month in accordance with La Jolla's standard payroll procedures and subject to standard payroll deductions and withholdings. Your Base Salary will be subject to annual review as determined by La Jolla's Board.

3. Bonus:

a. Target Bonus. With respect to each calendar year during your employment, in addition to your Base Salary, you will be eligible to earn an annual cash performance bonus, with the target bonus amount being equal to 55% of your Base Salary in effect at such time (the "Target Bonus"). It is understood and agreed that the Target Bonus is discretionary, and the actual bonus will be determined by the Board's assessment of La Jolla's achievement of the corporate goals for the second half of 2020. The payment of your Target Bonus is conditioned upon your continued employment with La Jolla through the date of payment.

b. XERAVA Sales Threshold Bonuses. You are eligible to receive cash bonuses of up to $200,000 comprised of: (1) $31,000 if XERAVA annual U.S. net sales are at least $20 million during the calendar year ending December 31, 2021; (2) $56,000 if XERAVA annual U.S. net sales are at least $35 million in any calendar year ending on or before December 31, 2024; and (3) $113,000 if XERAVA annual U.S. net sales are at least $55 million in any calendar year ending on or before December 31, 2024 (collectively, the "XERAVA Sales Threshold Bonus"). XERAVA Sales Threshold Bonuses are subject to the terms and conditions provided in the Operating Agreement of La Jolla Pharmaceutical Holdings, LLC, a subsidiary of La Jolla.

1

Exhibit 10.1

4. Equity Incentive Award: As of the Effective Date, you will be granted options to purchase 400,000 shares of La Jolla common stock ("Stock Options"). The exercise price of the Stock Options will be equal to the closing price of La Jolla's common stock on the Effective Date. The Stock Options will vest as follows:

a. 300,000 of the Stock Options will be subject to standard 4-year vesting (i.e., 25% vests on the first anniversary of the grant date, and the remaining 75% vests ratably on a monthly basis over the following three years); and

b. 100,000 of the Stock Options will vest as of December 31, 2021 if La Jolla's Adjusted Net Income for the year ending December 31, 2021 is greater than $15 million. Adjusted Net Income is equal to La Jolla's consolidated net income per General Accepted Accounting Principles in the U.S. excluding share-based compensation, depreciation and amortization expense, and accounts for the Healthcare Royalty Partners royalty and the facility rent on a cash basis.

5. Benefits: You will be entitled during the term of your employment to participate in La Jolla's benefits programs, which are summarized in the attached 2020 Benefits Information Guide.

6. Confidentiality Policy: You will be required to sign and abide by La Jolla's Confidential Information Agreement and La Jolla's Inventions and Assignment Agreement, and to comply with all La Jolla's policies and practices regarding the protection of its confidential information.

7. At-will Employment: You should be aware that your employment with La Jolla is for no specified period and constitutes "at-will" employment. As a result, you are free to terminate your employment at any time, for any reason or for no reason. Similarly, La Jolla is free to terminate your employment at any time, for any reason or for no reason, provided, however that:

a. If La Jolla terminates your employment without Cause, or you terminate your employment for Good Reason (as those terms are defined in Attachment A) on or before July 28, 2021, then: (1) you will receive as severance pay an amount equal to twelve (12) months of your then-current base salary (subject to all applicable federal, state and local tax withholdings, and payable over a twelve-month period in accordance with La Jolla's regular payroll practices); and (2) La Jolla will pay your COBRA premiums for medical, dental and vision insurance for you, your spouse and covered dependents, provided that you are eligible for and elect COBRA coverage, until the earlier of: (i) twelve (12) months after your employment ends; or (ii) the date that you become employed by a new employer.

b. If La Jolla terminates your employment without Cause, or you terminate your employment for Good Reason within 12 months after a Change In Control Event (as defined in Attachment A) and such Change in Control Event occurs on or before July 28, 2021, then: (1) you will receive as severance pay an amount equal to eighteen (18) months of your then­ current base salary (subject to all applicable federal, state and local tax withholdings, and payable over a eighteen-month period in accordance with La Jolla's regular payroll practices); (2) you will receive 100% of your then­ current annual Target Bonus (subject to all applicable federal, state and local taxes and withholdings and payable in a lump sum); and (3) La Jolla will pay your COBRA premiums for medical, dental and vision insurance for you, your spouse and covered dependents, provided that you are eligible for and elect COBRA coverage, until the

2

Exhibit 10.1

earlier of: (i) eighteen (18) months after your employment ends; or (ii) the date that you become employed by a new employer.

Payments under this Section 7, if any, are subject to La Jolla's standard terms and conditions regarding post-employment termination payments.

8. Entire Agreement: This offer letter constitutes the entire agreement between you and La Jolla relating to your employment, and supersedes all prior or contemporaneous understandings, negotiations and representations, whether oral or written, express or implied and supersedes all prior employment agreements with Tetraphase Pharmaceuticals, Inc.

If the foregoing terms are agreeable, please indicate your acceptance by signing this letter in the space provided below and returning it to La Jolla. This offer will expire at 4:00 pm, Eastern Time on Tuesday, July 28, 2020.

We are excited to have you join La Jolla and are confident you will make a significant contribution to the company.

Sincerely,

/s/    Kevin Tang

Kevin Tang

Chairman of the Board

ACCEPTED:
/s/    Larry Edwards	July 28, 2020
Larry Edwards	Date

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Exhibit 10.1

ATTACHMENT A

For the purpose of this Offer Letter:

"Cause" shall mean: (A) a good faith finding by the La Jolla Board that: (i) you have failed or refused to substantially perform your assigned duties, which failure or violation is not cured (provided that the La Jolla Board deems that such failure or violation is curable) within 20 days following written notice from the La Jolla Board to you specifying the duties not performed; (ii) you have engaged in dishonesty, gross negligence or misconduct; (iii) you have materially breached La Jolla's Confidential Information Agreement, Inventions and Assignment Agreement, Insider Trader Policy or other agreement entered into between you and La Jolla; or (B) your conviction of, or the entry of a pleading of guilty or nolo contendere by you to any crime involving moral turpitude or any felony.

"Change in Control Event" shall mean: (A) the acquisition by an individual, entity or group (within the meaning of Section 13(d)(3) or 14(d)(2) of the Securities Exchange Act of 1934, as amended (the "Exchange Act")) (a "Person") of beneficial ownership of any capital stock of the Company if, after such acquisition, such Person beneficially owns (within the meaning of Rule 13d-3 promulgated under the Exchange Act) 50% or more of the combined voting power of the then-outstanding securities of the Company entitled to vote generally in the election of directors (the "Outstanding Company Voting Securities"), provided, however, that for purposes of this subsection (A), the following acquisitions shall not constitute a Change in Control Event: (i) any acquisition directly from the Company (excluding an acquisition pursuant to the exercise, conversion or exchange of any security exercisable for, convertible into or exchangeable for common stock or voting securities of the Company, unless the Person exercising, converting or exchanging such security acquired such security directly from the Company or an underwriter or agent of the Company), or (ii) any acquisition by any employee benefit plan (or related trust) sponsored or maintained by the Company or any corporation controlled by the Company; or (B) the consummation of a merger, consolidation, reorganization, recapitalization or statutory share exchange involving the Company or a sale or other disposition of all or substantially all of the assets of the Company (a Business Combination"), unless, immediately following such Business Combination all or substantially all of the individuals and entities who were the beneficial owners of the Outstanding Company Voting Securities immediately prior to such Business Combination beneficially own, directly or indirectly, more than 50% of the combined voting power of the then-outstanding securities entitled to vote generally in the election of directors, respectively, of the resulting or acquiring corporation in such Business Combination (which shall include, without limitation, a corporation which as a result of such transaction owns the Company or substantially all of the Company's assets either directly or through one or more subsidiaries) in substantially the same proportions as their ownership of the Outstanding Company Voting Securities immediately prior to such Business Combination:

"Good Reason" shall occur if a Cause event has not occurred (or has occurred but has been timely cured, to the extent curable), and if: (A) you provide written notice to La Jolla of the event or change you consider to constitute "Good Reason" within 30 calendar days following its occurrence: (B) you provide La Jolla with a period of at least 30 calendar days to cure the event or change: and (C) the "Good Reason" persists following the cure period, and you actually resign within 60 calendar days following the event or change. An event or change constituting "Good Reason" shall be limited to any of the following that occur without your prior written consent: (i) a material diminution of your duties, authority or responsibilities, provided, however, that the assignment of different duties to you by La Jolla involving a reasonably comparable level of responsibility shall not, by itself, constitute "Good Reason," and provided, further, that a change in your duties, authority or responsibilities solely as a result of La Jolla’s acquisition by or merger with another entity, if you continue to have a comparatively senior role relative to La Jolla or its successor following such event, shall not, by itself, constitute "Good Reason"; (ii) a material diminution in

4

your base compensation: or (iii) the relocation of the principal place at which you provide services to La Jolla by at least 50 miles and to a location such that your daily commuting distance is increased.

EX-31.1

EXHIBIT 31.1

SECTION 302 CERTIFICATION

I, Larry Edwards, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of La Jolla Pharmaceutical Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 9, 2020	By:	/s/    Larry Edwards
		Larry Edwards
		President and Chief Executive Officer (principal executive officer)

EX-31.2

EXHIBIT 31.2

SECTION 302 CERTIFICATION

I, Michael Hearne, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of La Jolla Pharmaceutical Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 9, 2020	By:	/s/    Michael Hearne
		Michael Hearne
		Chief Financial Officer (principal financial and accounting officer)

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TOSECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of La Jolla Pharmaceutical Company (the “Company”) for the quarter ended September 30, 2020, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned officers of the Company hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of his knowledge:

• The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

• The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: November 9, 2020

/s/    Larry Edwards

Larry Edwards

President and Chief Executive Officer

(principal executive officer)

/s/    Michael Hearne

Michael Hearne

Chief Financial Officer

(principal financial and accounting officer)

The foregoing certification is being furnished solely to accompany the Report pursuant to 18 U.S.C. Section 1350, and is not being filed for purposes of Section 18 of the Securities Exchange Act of 1934, and is not to be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

Note: A signed original of this written statement required by Section 906 has been provided to La Jolla Pharmaceutical Company and will be retained by La Jolla Pharmaceutical Company and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Cover Page - shares	9 Months Ended
	Sep. 30, 2020	Nov. 03, 2020
Document And Entity Information [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	1-36282
Entity Registrant Name	LA JOLLA PHARMACEUTICAL COMPANY
Entity Incorporation, State or Country Code	CA
Entity Tax Identification Number	33-0361285
Entity Address, Address Line One	4747 Executive Drive
Entity Address, Address Line Two	Suite 240
Entity Address, City or Town	San Diego
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	92121
City Area Code	858
Local Phone Number	207-4264
Title of 12(b) Security	Common Stock, par value $0.0001 per share
Trading Symbol	LJPC
Security Exchange Name	NASDAQ
Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Shell Company	false
Entity Common Stock, Shares Outstanding		27,381,195
Entity Central Index Key	0000920465
Document Period End Date	Sep. 30, 2020
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--12-31

XML

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 27,760	$ 87,820
Accounts receivable, net	3,929	2,960
Inventory, net	7,274	2,211
Prepaid expenses and other current assets	3,240	4,467
Total current assets	42,203	97,458
Property and equipment, net	284	18,389
Right-of-use lease assets	2,150	15,491
Restricted cash	699	909
Intangible assets, net	15,261
Goodwill	20,123
Total assets	80,720	132,247
Current liabilities:
Accounts payable	3,928	4,177
Accrued expenses	7,683	9,312
Accrued payroll and related expenses	6,164	8,332
Lease liabilities, current portion	985	2,766
Total current liabilities	18,760	24,587
Lease liabilities, less current portion	1,249	26,481
Deferred royalty obligation, net	124,421	124,379
Other noncurrent liabilities	21,805	12,790
Total liabilities	166,235	188,237
Commitments and contingencies (Note 6)
Shareholders’ deficit:
Common Stock, $0.0001 par value; 100,000,000 shares authorized, 27,378,048 and 27,195,469 shares issued and outstanding at September 30, 2020 and December 31, 2019, respectively	3	3
Additional paid-in capital	983,850	977,432
Accumulated deficit	(1,073,274)	(1,037,331)
Total shareholders’ deficit	(85,515)	(55,990)
Total liabilities and shareholders’ deficit	80,720	132,247
Series C-1 Convertible Preferred Stock
Shareholders’ deficit:
Series C-12 Convertible Preferred Stock, $0.0001 par value; 11,000 shares authorized, 3,906 shares issued and outstanding at September 30, 2020 and December 31, 2019; and liquidation preference of $3,906 at September 30, 2020 and December 31, 2019	$ 3,906	$ 3,906

XML

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Common stock, par value (USD per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	27,378,048	27,195,469
Common stock, shares outstanding (in shares)	27,378,048	27,195,469
Preferred stock, shares issued (in shares)	3,906	3,906
Series C-1 Convertible Preferred Stock
Preferred stock, par value (USD per share)	$ 0.0001	$ 0.0001
Preferred stock, shares authorized (in shares)	11,000	11,000
Preferred stock, shares issued (in shares)	3,906	3,906
Preferred stock, shares outstanding (in shares)	3,906	3,906
Preferred stock, liquidation	$ 3,906	$ 3,906

XML

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenue
Net product sales	$ 9,072	$ 5,706	$ 22,468	$ 15,804
Total revenue	9,072	5,706	22,468	15,804
Operating expenses
Cost of product sales	2,489	554	4,013	1,605
Research and development	3,617	21,182	21,581	64,469
Selling, general and administrative	12,493	10,782	29,322	34,425
Total operating expenses	18,599	32,518	54,916	100,499
Loss from operations	(9,527)	(26,812)	(32,448)	(84,695)
Other income (expense)
Interest expense	(2,526)	(2,863)	(7,402)	(8,398)
Interest income	12	501	234	1,818
Other income—related party			4,085
Other income (expense)	281		(412)
Total other income (expense), net	(2,233)	(2,362)	(3,495)	(6,580)
Net loss	$ (11,760)	$ (29,174)	$ (35,943)	$ (91,275)
Net loss per share, basic and diluted	$ (0.43)	$ (1.08)	$ (1.32)	$ (3.37)
Weighted-average common shares outstanding, basic and diluted	27,368	27,135	27,311	27,093

XML

Consolidated Statements of Shareholders' (Deficit) Equity (Unaudited) - USD ($) $ in Thousands	Total	Preferred Stock Series C-1 Convertible Preferred Stock	Preferred Stock Series F Convertible Preferred Stock	Common Stock	Additional Paid-in Capital	Additional Paid-in Capital Cumulative Effect, Period of Adoption, Adjustment	Accumulated Deficit	Accumulated Deficit Cumulative Effect, Period of Adoption, Adjustment
Beginning Balance at Dec. 31, 2018	$ 35,921	$ 3,906	$ 2,737	$ 3	$ 950,258	$ (160)	$ (920,983)	$ 160
Beginning Balance (in shares) at Dec. 31, 2018		4	3	26,259
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	6,782				6,782
Issuance of common stock under ESPP	283				283
Issuance of common stock under ESPP (in shares)				52
Issuance of common stock for conversion of Series F Preferred Stock			$ (2,737)		2,737
Issuance of common stock for conversion of Series F Preferred Stock (in shares)			(3)	782
Net loss	(31,685)						(31,685)
Ending Balance at Mar. 31, 2019	11,301	$ 3,906		$ 3	959,900		(952,508)
Ending Balance (in shares) at Mar. 31, 2019		4		27,093
Beginning Balance at Dec. 31, 2018	35,921	$ 3,906	$ 2,737	$ 3	950,258	$ (160)	(920,983)	$ 160
Beginning Balance (in shares) at Dec. 31, 2018		4	3	26,259
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(91,275)
Ending Balance at Sep. 30, 2019	(35,171)	$ 3,906		$ 3	973,018		(1,012,098)
Ending Balance (in shares) at Sep. 30, 2019		4		27,147
Beginning Balance at Mar. 31, 2019	11,301	$ 3,906		$ 3	959,900		(952,508)
Beginning Balance (in shares) at Mar. 31, 2019		4		27,093
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	6,321				6,321
Issuance of common stock under ESPP	201				201
Issuance of common stock under ESPP (in shares)				32
Net loss	(30,416)						(30,416)
Ending Balance at Jun. 30, 2019	(12,593)	$ 3,906		$ 3	966,422		(982,924)
Ending Balance (in shares) at Jun. 30, 2019		4		27,125
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	6,419				6,419
Issuance of common stock under ESPP	177				177
Issuance of common stock under ESPP (in shares)				22
Net loss	(29,174)						(29,174)
Ending Balance at Sep. 30, 2019	(35,171)	$ 3,906		$ 3	973,018		(1,012,098)
Ending Balance (in shares) at Sep. 30, 2019		4		27,147
Beginning Balance at Dec. 31, 2019	(55,990)	$ 3,906		$ 3	977,432		(1,037,331)
Beginning Balance (in shares) at Dec. 31, 2019		4		27,195
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	2,407				2,407
Issuance of common stock under 2013 Equity Plan	305				305
Exercise of stock options for common stock (in shares)				44
Issuance of common stock under ESPP	200				200
Issuance of common stock under ESPP (in shares)				38
Net loss	(8,591)						(8,591)
Ending Balance at Mar. 31, 2020	(61,669)	$ 3,906		$ 3	980,344		(1,045,922)
Ending Balance (in shares) at Mar. 31, 2020		4		27,277
Beginning Balance at Dec. 31, 2019	$ (55,990)	$ 3,906		$ 3	977,432		(1,037,331)
Beginning Balance (in shares) at Dec. 31, 2019		4		27,195
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options for common stock (in shares)	94,219
Net loss	$ (35,943)
Ending Balance at Sep. 30, 2020	(85,515)	$ 3,906		$ 3	983,850		(1,073,274)
Ending Balance (in shares) at Sep. 30, 2020		4		27,378
Beginning Balance at Mar. 31, 2020	(61,669)	$ 3,906		$ 3	980,344		(1,045,922)
Beginning Balance (in shares) at Mar. 31, 2020		4		27,277
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	1,590				1,590
Issuance of common stock under 2013 Equity Plan	300				300
Exercise of stock options for common stock (in shares)				50
Issuance of common stock under ESPP	159				159
Issuance of common stock under ESPP (in shares)				32
Net loss	(15,592)						(15,592)
Ending Balance at Jun. 30, 2020	(75,212)	$ 3,906		$ 3	982,393		(1,061,514)
Ending Balance (in shares) at Jun. 30, 2020		4		27,359
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	1,388				1,388
Issuance of common stock under ESPP	69				69
Issuance of common stock under ESPP (in shares)				19
Net loss	(11,760)						(11,760)
Ending Balance at Sep. 30, 2020	$ (85,515)	$ 3,906		$ 3	$ 983,850		$ (1,073,274)
Ending Balance (in shares) at Sep. 30, 2020		4		27,378

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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Operating activities
Net loss	$ (29,174)	$ (35,943)	$ (91,275)
Adjustments to reconcile net loss to net cash used for operating activities:
Share-based compensation expense		5,385	19,522
Depreciation expense		2,155	3,408
Inventory fair value step-up adjustment included in cost of product sales		1,186
Amortization of intangible assets		259
Amortization of right-of-use lease assets		1,091	969
Non-cash interest expense		5,339	6,971
Loss on short-term investments		502
Loss on disposal of property and equipment, net of gain on lease termination		59	15
Changes in operating assets and liabilities:
Accounts receivable, net		218	(36)
Inventory, net		(1,482)	110
Prepaid expenses and other current assets		2,445	328
Accounts payable		(1,649)	(3,234)
Accrued expenses		(5,786)	(332)
Accrued payroll and related expenses		(2,168)	(2,391)
Lease liabilities		(1,969)	(1,873)
Net cash used for operating activities		(30,358)	(67,818)
Investing activities
Acquisition of Tetraphase, net of cash, cash equivalents and restricted cash acquired		(33,513)
Proceeds from the sale of property and equipment		3,070
Purchases of property and equipment			(679)
Proceeds from the sale of short-term investments		2,497
Purchases of short-term investments		(2,999)
Net cash used for investing activities		(30,945)	(679)
Financing activities
Net proceeds from issuance of common stock under 2013 Equity Plan		605
Net proceeds from issuance of common stock under ESPP		428	661
Net cash provided by financing activities		1,033	661
Net decrease in cash, cash equivalents and restricted cash		(60,270)	(67,836)
Cash, cash equivalents and restricted cash, beginning of period		88,729	173,513
Cash, cash equivalents and restricted cash, end of period	105,677	28,459	105,677
Supplemental disclosure of non-cash investing and financing activities
Conversion of Series F Convertible Preferred Stock into common stock			2,737
Cumulative-effect adjustment from adoption of ASU 2018-07	(160)		(160)
Initial recognition of right-of-use lease asset			16,798
Reconciliation of cash, cash equivalents and restricted cash to the condensed consolidated balance sheets
Cash and cash equivalents	104,768	27,760	104,768
Restricted cash	909	699	909
Cash, cash equivalents and restricted cash, end of period	$ 105,677	$ 28,459	$ 105,677

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Business

9 Months Ended

Sep. 30, 2020

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Business

1.  Business

La Jolla Pharmaceutical Company (collectively with its wholly owned subsidiaries, “La Jolla” or the “Company”) is dedicated to the development and commercialization of innovative therapies that improve outcomes in patients suffering from life-threatening diseases. GIAPREZA^TM (angiotensin II) for injection is approved by the U.S. Food and Drug Administration (“FDA”) as a vasoconstrictor indicated to increase blood pressure in adults with septic or other distributive shock. XERAVA^TM (eravacycline) for injection is a novel fluorocycline of the tetracycline class of antibacterials that is approved by the FDA for the treatment of complicated intra-abdominal infections (“cIAI”) in patients 18 years of age and older.

On July 28, 2020, La Jolla completed its acquisition of Tetraphase Pharmaceuticals, Inc. (“Tetraphase”), a biopharmaceutical company focused on commercializing XERAVA, for $43 million in upfront cash plus potential future cash payments of up to $16 million. The Company’s consolidated financial results for periods ending September 30, 2020 and beyond include Tetraphase’s financial results subsequent to the acquisition closing date of July 28, 2020 (see Note 12).

As of September 30, 2020 and December 31, 2019, the Company had cash and cash equivalents of $27.8 million and $87.8 million, respectively. Based on the Company’s current operating plans and projections, the Company expects that its existing cash and cash equivalents will be sufficient to fund operations for at least one year from the date this Quarterly Report on Form 10-Q is filed with the U.S. Securities and Exchange Commission (the “SEC”).

XML

Basis of Presentation and Summary of Significant Accounting Policies

9 Months Ended

Sep. 30, 2020

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Basis of Presentation and Summary of Significant Accounting Policies

2.  Basis of Presentation and Summary of Significant Accounting Policies

Basis of Presentation and Use of Estimates

The accompanying condensed consolidated financial statements of the Company have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of SEC Regulation S-X. Accordingly, certain information and disclosures required by GAAP for annual financial statements have been omitted. In the opinion of management, all adjustments, consisting of normal recurring adjustments, considered necessary for a fair presentation have been included. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto for the year ended December 31, 2019 included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019, filed with the SEC on March 2, 2020 (the “Form 10-K”). The accompanying condensed consolidated financial statements include the accounts of La Jolla Pharmaceutical Company and its wholly owned subsidiaries. All inter-company transactions and balances have been eliminated in consolidation.

The preparation of the Company’s condensed consolidated financial statements requires management to make estimates and assumptions that impact the reported amounts of assets, liabilities, revenue and expenses and the disclosure of contingent assets and liabilities in the Company’s condensed consolidated financial statements and the accompanying notes. Actual results may differ materially from these estimates. Certain amounts previously reported in the financial statements have been reclassified to conform to the current year presentation. Such reclassifications did not affect net loss, shareholders’ (deficit) equity or cash flows. The results of operations for the three and nine months ended September 30, 2020 are not necessarily indicative of the results to be expected for the full year or any future interim periods. The accompanying condensed consolidated balance sheet as of December 31, 2019 has been derived from the audited consolidated balance sheet as of December 31, 2019 contained in the Form 10-K.

Summary of Significant Accounting Policies

During the nine months ended September 30, 2020, other than the short-term investments, business combinations, intangible assets and goodwill policies described below, there have been no changes to the Company’s significant accounting policies as described in the Form 10-K.

Short-term investments

Short-term investments are comprised of marketable equity securities that are “available-for-sale,” as such term is defined by the Financial Accounting Standards Board (the “FASB”) Accounting Standards Codification (“ASC”) Topic 320. Marketable equity securities are classified as current assets. Short-term investments are measured at fair value, and unrealized gains and losses are recorded in other income (expense), net in the consolidated statements of operations. Overnight sweep accounts are classified as cash and cash equivalents.

Concentration of Credit Risk

Financial instruments that potentially subject the Company to concentration of credit risk consist of cash and accounts receivable. The Company maintains its cash in checking and savings accounts at federally insured financial institutions in excess of federally insured limits.

During the nine months ended September 30, 2020, 468 hospitals in the U.S. purchased GIAPREZA. During the nine months ended September 30, 2020, 646 hospitals in the U.S. purchased XERAVA. Hospitals purchase our products through a network of specialty and wholesale distributors (“Customers”). The Company does not believe that the loss of one of these distributors would significantly impact the ability to distribute GIAPREZA or XERAVA, as the Company expects that sales volume would be absorbed by the remaining distributors. The following table includes the percentage of U.S. net product sales and accounts receivable balances for the Company’s three major Customers, each of which comprised 10% or more of its U.S. net product sales:

	U.S. Net Product Sales						Accounts Receivable
	Three Months Ended			Nine Months Ended
	September 30, 2020			September 30, 2020			As of September 30, 2020
Customer A		37	%		38	%		28	%
Customer B		33	%		32	%		34	%
Customer C		26	%		27	%		33	%
Total		96	%		97	%		95	%

Revenue Recognition

The Company has adopted FASB ASC Topic 606—Revenue from Contracts with Customers (“ASC 606”). Under ASC 606, the Company recognizes revenue when its Customers obtain control of the Company’s product, which typically occurs on delivery. Revenue is recognized in an amount that reflects the consideration that the Company expects to receive in exchange for those goods. To determine revenue recognition for contracts with Customers within the scope of ASC 606, the Company performs the following 5 steps: (i) identify the contract(s) with a Customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) the entity satisfies the relevant performance obligations. There have been no contract assets or liabilities recorded to date relating to product sales.

Revenue from product sales is recorded at the transaction price, net of estimates for variable consideration consisting of chargebacks, discounts, returns and administrative fees. Variable consideration is estimated using the expected-value amount method, which is the sum of probability-weighted amounts in a range of possible consideration amounts. Actual amounts of consideration ultimately received may differ from the Company’s estimates. If actual results vary materially from the Company’s estimates, the Company will adjust these estimates, which will affect revenue from product sales and earnings in the period such estimates are adjusted. These items include:

• Chargebacks—Chargebacks are discounts the Company provides to distributors in the event that the sales prices to end users are below the distributors’ acquisition price. This may occur due to a direct contract with a health system, a group purchasing organization (“GPO”) agreement or a sale to a government facility. Chargebacks are estimated based on known chargeback rates and recorded as a reduction of revenue on delivery to Customers.

• Discounts—The Company offers Customers various forms of incentives and consideration, including prompt-pay and other discounts. The Company estimates discounts primarily based on contractual terms. These discounts are recorded as a reduction of revenue on delivery to Customers.

• Returns—The Company offers Customers a limited right of return, generally for damaged or expired product. The Company estimates returns based on an internal analysis, which includes actual experience. The estimates for returns are recorded as a reduction of revenue on delivery to Customers.

• Administrative Fees—The Company pays administrative fees to GPOs for services and access to data. Additionally, the Company pays an Industrial Funding Fee as part of the U.S. General Services Administration’s Federal Supply Schedules program. These fees are based on contracted terms and are paid after the quarter in which the product was purchased by the applicable GPO or government agency.

The Company will continue to assess its estimates of variable consideration as it accumulates additional historical data and will adjust these estimates accordingly.

Business Combinations

The Company accounts for business combinations using the acquisition method pursuant to FASB ASC Topic 805. This method requires, among other things, that results of operations of acquired companies are included in La Jolla's financial results beginning on the respective acquisition dates, and that assets acquired and liabilities assumed are recognized at fair value as of the acquisition date. Intangible assets acquired in a business combination are recorded at fair value using a discounted cash flow model. The discounted cash flow model requires assumptions about the timing and amount of future net cash flows, the cost of capital and terminal values from the perspective of a market participant. Any excess of the fair value of consideration transferred (the “Purchase Price”) over the fair values of the net assets acquired is recognized as goodwill. Contingent consideration liabilities are recognized as part of the Purchase Price at the estimated fair value on the acquisition date. Subsequent changes to the fair value of contingent consideration liabilities will be included in other income (expense), net in the consolidated statements of operations. The fair value of assets acquired and liabilities assumed in certain cases may be subject to revision based on the final determination of fair value during a period of time not to exceed 12 months from the acquisition date. Legal costs, due diligence costs, business valuation costs and all other acquisition-related costs are expensed when incurred.

Intangible Assets

Intangible assets acquired in a business combination are initially recorded at fair value. Intangible assets with a definite useful life are amortized on a straight-line basis over the estimated useful life of the related assets. Intangible assets with an indefinite useful life are not amortized.

The Company reviews its intangible assets for impairment at least annually or whenever events or changes in circumstances indicate that the carrying value of an asset may not be recoverable. If such circumstances are determined to exist, an estimate of undiscounted future cash flows produced by the asset, including its eventual residual value, is compared to the carrying value to determine whether impairment exists. In the event that such cash flows are not expected to be sufficient to recover the carrying amount of the assets, the assets are written down to their estimated fair values. Fair value is estimated through discounted cash flow models to project cash flows from the asset.

Goodwill

Goodwill represents the excess of the Purchase Price over the fair value of the net assets acquired as of the acquisition date. Goodwill has an indefinite useful life and is not amortized.

The Company reviews its goodwill for impairment at least annually or whenever events or changes in circumstances indicate that the carrying amount of the Company may exceed its fair value. The Company first assesses qualitative factors to determine whether it is more likely than not that the fair value of the Company is less than its carrying amount, including goodwill. If that is not the case, the Company has completed its goodwill impairment test and does not recognize an impairment charge. However, if that is the case, the Company performs a quantitative impairment test, and, if the carrying amount of the Company exceeds its fair value, then the Company will recognize an impairment charge for the amount by which its carrying amount exceeds its fair value, not to exceed the carrying amount of the goodwill.

Recent Accounting Pronouncements

Management has considered all recent accounting pronouncements and has concluded that there are no recently issued accounting pronouncements that may have a material effect on the Company’s results of operations, financial condition or cash flows based on current information.

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Net Loss per Share

9 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Net Loss Per Share

3.  Net Loss per Share

Basic net loss per share is calculated by dividing net loss by the weighted-average number of common shares outstanding during the period, without consideration of potential common shares. Diluted net loss per share is calculated by dividing net loss by the weighted-average number of common shares outstanding plus potential common shares. Convertible preferred stock and stock options are considered potential common shares and are included in the calculation of diluted net loss per share using the treasury stock method when their effect is dilutive. Potential common shares are excluded from the calculation of diluted net loss per share when their effect is anti-dilutive. As of September 30, 2020 and 2019, there were 10.0 million and 13.7 million potential common shares, respectively, that were excluded from the calculation of diluted net loss per share because their effect was anti-dilutive.

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Balance Sheet Details

9 Months Ended

Sep. 30, 2020

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Balance Sheet Account Details

4.  Balance Sheet Details

Restricted Cash

Restricted cash as of September 30, 2020 consists of: (i) a $0.5 million security deposit for the Company’s field force corporate credit card program; (ii) a $0.2 million standby letter of credit provided in lieu of a security deposit for the Watertown Lease (see Note 6); and (iii) a $40,000 security deposit for the Company’s corporate purchasing credit card. Restricted cash as of December 31, 2019 consists of a $0.9 million standby letter of credit provided in lieu of a security deposit for the San Diego Lease (see Note 6).

Inventory, Net

Inventory, net consisted of the following (in thousands):

	September 30,		December 31,
	2020		2019
Raw materials	$	802	$	-
Work-in-process		2,340		1,505
Finished goods		4,132		706
Total inventory, net	$	7,274	$	2,211

As of September 30, 2020, inventory, net includes $2.1 million of the fair value step-up adjustment to Tetraphase’s inventory recorded in connection with the acquisition of Tetraphase (see Note 12). As of September 30, 2020 and December 31, 2019, total inventory is recorded net of inventory reserves of $0.2 million and $0.1 million, respectively.

Property and Equipment, Net

Property and equipment, net consisted of the following (in thousands):

	September 30,			December 31,
	2020			2019
Software	$	733		$	733
Furniture and fixtures		598			2,598
Leasehold improvements		386			14,504
Computer hardware		310			1,296
Lab equipment		-			9,665
Total property and equipment, gross		2,027			28,796
Accumulated depreciation and amortization		(1,743	)		(10,407	)
Total property and equipment, net	$	284		$	18,389

The Company recorded a loss of approximately $12.9 million, net of $3.1 million of cash proceeds, in other income (expense), net, related to the disposal of tenant improvements and certain equipment in connection with the termination of the San Diego Lease. The $12.9 million loss is recorded in the consolidated statements of cash flows net of the gain from the termination of the San Diego Lease (see Note 6).

Intangible Assets, Net

Intangible assets, net consisted of the following (in thousands):

	September 30,			December 31,
	2020			2019
Technology	$	14,000		$	-
Trade name		1,520			-
Total intangible assets, gross		15,520			-
Accumulated amortization		(259	)		-
Total intangible assets, net	$	15,261		$	-

The intangible assets were recorded in connection with the acquisition of Tetraphase (see Note 12).

Accrued Expenses

Accrued expenses consisted of the following (in thousands):

	September 30,		December 31,
	2020		2019
Accrued interest expense	$	3,870	$	2,692
Accrued manufacturing costs		1,449		1,339
Accrued clinical study costs		426		3,496
Accrued other		1,938		1,785
Total accrued expenses	$	7,683	$	9,312

Other Noncurrent Liabilities

Other noncurrent liabilities consisted of the following (in thousands):

	September 30,		December 31,
	2020		2019
Accrued interest expense	$	16,909	$	12,790
Fair value of CVRs (see Note 12)		2,610		-
Paycheck Protection Program loan		2,286		-
Total other noncurrent liabilities	$	21,805	$	12,790

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Deferred Royalty Obligation

9 Months Ended

Sep. 30, 2020

Debt Disclosure [Abstract]

Deferred Royalty Obligation

5.  Deferred Royalty Obligation

In May 2018, the Company closed a $125.0 million royalty financing agreement (the “Royalty Agreement”) with HealthCare Royalty Partners (“HCR”). Under the terms of the Royalty Agreement, the Company received $125.0 million in exchange for tiered royalty payments on worldwide net sales of GIAPREZA. HCR is entitled to receive quarterly royalties on worldwide net sales of GIAPREZA beginning April 1, 2018. Quarterly payments to HCR under the Royalty Agreement start at a maximum royalty rate, with step-downs based on the achievement of annual net product sales thresholds. Through December 31, 2021, the royalty rate will be a maximum of 10%. Starting January 1, 2022, the maximum royalty rate may increase by 4% if an agreed-upon, cumulative net product sales threshold has not been met, and, starting January 1, 2024, the maximum royalty rate may increase by an additional 4% if a different agreed-upon, cumulative net product sales threshold has not been met. The Royalty Agreement is subject to maximum aggregate royalty payments to HCR of $225.0 million. The Royalty Agreement expires upon the first to occur of January 1, 2031 or when the maximum aggregate royalty payments have been made. The Royalty Agreement was entered into by the Company’s wholly owned subsidiary, La Jolla Pharma, LLC, and HCR has no recourse under the Royalty Agreement against La Jolla Pharmaceutical Company or any assets other than GIAPREZA.

On receipt of the $125.0 million payment from HCR, the Company recorded a deferred royalty obligation of $125.0 million, net of issuance costs of $0.7 million. For the three months ended September 30, 2020 and 2019, the Company recognized interest expense, including amortization of the obligation discount, of $2.5 million and $2.8 million, respectively. For the nine months ended September 30, 2020 and 2019, the Company recognized interest expense, including amortization of the obligation discount, of $7.4 million and $8.4 million, respectively. The carrying value of the deferred royalty obligation as of September 30, 2020 was $124.4 million, net of unamortized obligation discount of $0.6 million, and was classified as noncurrent. The related accrued interest expense was $20.8 million and $15.5 million as of September 30, 2020 and December 31, 2019, respectively, of which $16.9 million and $12.8 million was classified as other noncurrent liabilities, respectively. During the three and nine months ended September 30, 2020, the Company made royalty payments to HCR of $0.6 million and $2.1 million, respectively, and, as of September 30, 2020, the Company recorded royalty obligations payable of $0.7 million in accrued expenses. The deferred royalty obligation is classified as Level 3 in the ASC Topic 820-10, three-tier fair value hierarchy, and its carrying value approximates fair value.

Under the terms of the Royalty Agreement, La Jolla Pharma, LLC has certain obligations, including the obligation to use commercially reasonable and diligent efforts to commercialize GIAPREZA. If La Jolla Pharma, LLC is held to not have met these obligations, HCR would have the right to terminate the Royalty Agreement and demand payment from La Jolla Pharma, LLC of either $125.0 million or $225.0 million (depending on which obligation La Jolla Pharma, LLC is held to not have met), minus aggregate royalties already paid to HCR. In the event that La Jolla Pharma, LLC fails to timely pay such amount if and when due, HCR would have the right to foreclose on the GIAPREZA-related assets. The Company concluded that certain of these contract provisions that could result in an acceleration of amounts due under the Royalty Agreement are embedded derivatives that require bifurcation from the deferred royalty obligation and fair value recognition. The Company determined the fair value of each derivative by assessing the probability of each event occurring, as well as the potential repayment amounts and timing of such repayments that would result under various scenarios. As a result of this assessment, the Company determined that the fair value of the embedded derivatives is immaterial as of September 30, 2020 and December 31, 2019. Each reporting period, the Company estimates the fair value of the embedded derivatives until the features lapse and/or the termination of the Royalty Agreement. Any change in the fair value of the embedded derivatives will be recorded as either a gain or loss on the consolidated statements of operations.

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2020

Leases [Abstract]

Commitments and Contingencies

6.  Commitments and Contingencies

Lease Commitments

San Diego Lease

On December 29, 2016, the Company entered into an agreement with BMR-Axiom LP (the “Landlord”) to lease office and laboratory space as its corporate headquarters located at 4550 Towne Centre Court, San Diego, California (the “San Diego Lease”) for a period of 10 years commencing on October 30, 2017 (the “Initial Lease Term”). The Company had an option to extend the San Diego Lease for an additional 5 years at the end of the Initial Lease Term.

On August 6, 2020, La Jolla received notice from the Landlord that the Landlord exercised its option to terminate the San Diego Lease effective August 31, 2020. The Landlord exercised its right to terminate the San Diego Lease and recapture the property after La Jolla provided notice to the Landlord of its intent to assign the San Diego Lease. In connection with the termination of the San Diego Lease, La Jolla will have no further obligations under the San Diego Lease after the August 31, 2020 termination date, including with respect to future payments under the San Diego Lease. The Company recorded a non-cash gain of approximately $12.9 million as other income (expense), net, in connection with the write-off of the lease liability and corresponding right-of-use lease asset. The $12.9 million gain is recorded in the consolidated statements of cash flows net of the loss on disposal of property and equipment in connection with the termination of the San Diego Lease (see Note 4).

The Company provided a standby letter of credit for $0.9 million in lieu of a security deposit. This amount decreased to $0.6 million after year two of the Initial Lease Term. As of September 30, 2020, there was no cash pledged as collateral for such letter of credit and recorded as restricted cash.

As of September 30, 2020, there was no lease liability and corresponding right-of-use asset related to the San Diego Lease. Lease expense for the San Diego Lease was $0.5 million and $1.8 million for the three and nine months ended September 30, 2020, respectively, and was $0.7 million and $2.1 million for the three and nine months ended September 30, 2019, respectively.

Watertown Lease

On November 16, 2006, Tetraphase entered into an agreement with ARE-480 Arsenal Street, LLC, to lease office and laboratory space as its corporate headquarters located at 480 Arsenal Way, Watertown, Massachusetts (the “Watertown Lease”). The Watertown Lease originally provided for an expiration on November 30, 2019. In November 2018, Tetraphase entered into an Eighth Amendment to the Watertown Lease to extend the term of the lease through November 30, 2022 (the “Lease Term”). In January 2020, Tetraphase entered into a Ninth Amendment to the Watertown Lease to surrender a portion of its leased space, which reduced the leased premises by a total of 15,899 square feet from approximately 37,438 square feet to approximately 21,539 square feet. Total aggregate remaining payments under the Watertown lease as of July 28, 2020 were $2.6 million.

Tetraphase provided a standby letter of credit for $0.2 million in lieu of a security deposit. As of September 30, 2020, $0.2 million of cash was pledged as collateral for such letter of credit and recorded as restricted cash. The annual rent under the Watertown Lease is subject to escalation during the Lease Term. In addition to rent, the Watertown Lease requires the Company to pay certain taxes, insurance and operating costs relating to the leased premises (collectively, “Lease Operating Costs”). The Watertown Lease contains customary default provisions, representations, warranties and covenants. The Watertown Lease is classified as an operating lease.

Future minimum lease payments, excluding Lease Operating Costs, under the Watertown Lease as of September 30, 2020 are as follows (in thousands):

2020	$	281
2021		1,138
2022		1,027
Thereafter		-
Total future minimum lease payments		2,446
Less: discount		(212	)
Total lease liabilities	$	2,234

As of July 28, 2020, the Company recorded a lease liability for the Watertown Lease based on the present value of the lease payments over the remaining Lease Term, discounted using the Company’s incremental borrowing rate. The Company recorded a corresponding right-of-use lease asset based on the lease liability. Subsequent to July 28, 2020 and through September 30, 2020, lease expense for the Watertown Lease was $0.2 million.

Contingencies

From time to time, the Company may become subject to claims and litigation arising in the ordinary course of business. The Company is not a party to any material legal proceedings, nor is it aware of any material pending or threatened litigation.

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Shareholders Equity

9 Months Ended

Sep. 30, 2020

Equity [Abstract]

Shareholders’ Equity

7.  Shareholders’ Equity

Preferred Stock

As of September 30, 2020 and December 31, 2019, 3,906 shares of Series C-1² Convertible Preferred Stock (“Series C-1²  Preferred”) were issued, outstanding and convertible into 6,735,378 shares of common stock. In January 2019, the Company issued 782,031 shares of common stock upon the conversion of 2,737 shares of Series F Convertible Preferred Stock. As of September 30, 2020 and December 31, 2019, there were no shares of Series F Convertible Preferred Stock issued and outstanding.

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Equity Incentive Plans

9 Months Ended

Sep. 30, 2020

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Equity Incentive Plans

8.  Equity Incentive Plans

2013 Equity Incentive Plan

A total of 9,600,000 shares of common stock have been reserved for issuance under the La Jolla Pharmaceutical Company 2013 Equity Incentive Plan (the “2013 Equity Plan”). As of September 30, 2020, 6,061,242 shares of common stock remained available for future grants under the 2013 Equity Plan.

2018 Employee Stock Purchase Plan

A total of 750,000 shares of common stock have been reserved for issuance under the La Jolla Pharmaceutical Company 2018 Employee Stock Purchase Plan (the “ESPP”). As of September 30, 2020, 480,368 shares of common stock remained available for future grants under the ESPP.

Equity Awards

The activity related to equity awards, which are comprised of stock options and inducement grants, during the nine months ended September 30, 2020 is summarized as follows:

	Equity Awards			Weighted-average Exercise Price per Share		Weighted-average Remaining Contractual Term (years)		Aggregate Intrinsic Value
Outstanding at December 31, 2019		5,616,840		$	19.50
Granted		1,802,860		$	4.70
Exercised		(94,219	)	$	6.42
Cancelled/forfeited		(4,000,059	)	$	18.74
Outstanding at September 30, 2020		3,325,422		$	12.77		7.43	$	-
Exercisable at September 30, 2020		1,466,036		$	20.53		5.52	$	-

Share-based Compensation Expense

The classification of share-based compensation expense is summarized as follows (in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
Research and development	$	691	$	4,169	$	3,218	$	12,062
Selling, general and administrative		697		2,250		2,167		7,460
Total share-based compensation expense	$	1,388	$	6,419	$	5,385	$	19,522

As of September 30, 2020, total unrecognized share-based compensation expense related to unvested equity awards was $8.0 million, which is expected to be recognized over a weighted-average period of 2.6 years. As of September 30, 2020, there was no unrecognized share-based compensation expense related to shares of common stock issued under the ESPP.

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Other Income—Related Party

9 Months Ended

Sep. 30, 2020

Related Party Transactions [Abstract]

Other Income—Related Party

9.  Other Income—Related Party

The Company has a non-voting profits interest in a related party, which provides the Company with the potential to receive a portion of the future distributions of profits, if any. Investment funds affiliated with the Chairman of the Company’s board of directors have a controlling interest in the related party. During the nine months ended September 30, 2020, the Company received distributions of $4.1 million in connection with this profits interest.

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License Agreements

9 Months Ended

Sep. 30, 2020

Research And Development [Abstract]

License Agreements

10.  License Agreements

In-license Agreements

George Washington University License

In December 2014, the Company entered into a patent license agreement with George Washington University (“GW”), which was subsequently amended and restated (the “GW License”) and assigned to La Jolla Pharma, LLC. Pursuant to the GW License, GW exclusively licensed to the Company certain intellectual property rights relating to GIAPREZA, including the exclusive rights to certain issued patents and patent applications covering GIAPREZA. Under the GW License, the Company is obligated to use commercially reasonable efforts to develop, commercialize, market and sell GIAPREZA. The Company has paid a one-time license initiation fee, annual maintenance fees, an amendment fee, additional payments following the achievement of certain development and regulatory milestones and royalties. As a result of the European Commission’s approval of

GIAPREZA in August 2019, the Company made a milestone payment to GW in the amount of $0.5 million in the first quarter of 2020. The Company is obligated to pay a 6% royalty on net sales of GIAPREZA. The obligation to pay royalties under this agreement extends through the last-to-expire patent covering GIAPREZA. During the three and nine months ended September 30, 2020, the Company made royalty payments to GW of $0.3 million and $1.2 million, respectively.

Harvard University License

In August 2006, Tetraphase entered into a license agreement with Harvard University (“Harvard”), which was subsequently amended and restated (the “Harvard License”). Pursuant to the Harvard License, Harvard exclusively licensed to the Company certain intellectual property rights relating to tetracycline-based products, including XERAVA, including the exclusive rights to certain issued patents and patent applications covering such products. Under the Harvard License, the Company is obligated to use commercially reasonable efforts to develop, commercialize, market and sell tetracycline-based products, including XERAVA. For each product covered by the Harvard License, the Company is obligated to make certain payments totaling up to approximately $15.1 million upon the achievement of certain clinical development and regulatory milestones, and to pay Harvard tiered royalties at percentages in the single digits based on net sales, if any, of tetracycline-based products, including XERAVA, by the Company, its affiliates and sublicensees in certain circumstances. The Company is also obligated to pay Harvard a specified share of non-royalty sublicensing and other revenues that it receives from sublicensees for the grant of sublicenses in certain circumstances, including the Everest License (see below), and to reimburse Harvard for specified patent prosecution and maintenance costs. The obligation to pay royalties under this agreement extends through the last-to-expire patent covering tetracycline-based products, including XERAVA. Subsequent to July 28, 2020 and through September 30, 2020, the Company paid $0.1 million of royalties to Harvard, and did not make any payments to Harvard related to clinical development and regulatory milestone payments.

Paratek Pharmaceuticals, Inc. License

In March 2019, Tetraphase entered into a license agreement with Paratek Pharmaceuticals, Inc. (“Paratek”), which was subsequently amended and restated (the “Paratek License”). Pursuant to the Paratek License, Paratek non-exclusively licensed to the Company certain intellectual property rights relating to XERAVA, including non-exclusive rights to certain issued patents and patent applications covering XERAVA. Under the Paratek License, the Company is obligated to use commercially reasonable efforts to develop, commercialize, market and sell XERAVA. The Company is obligated to pay Paratek royalties at a low single digit percent based on net sales of XERAVA in the U.S. The obligation to pay royalties under this agreement extends through the last-to-expire patent covering XERAVA. Subsequent to July 28, 2020 and through September 30, 2020, the Company paid $33,000 of royalties to Paratek.

Out-license Agreement

Everest Medicines Limited License

In February 2018, Tetraphase entered into a license agreement with Everest Medicines Limited (“Everest”), which was subsequently amended and restated (the “Everest License”). Pursuant to the Everest License, Tetraphase granted Everest an exclusive license to develop and commercialize XERAVA for the treatment of cIAI and other indications in mainland China, Taiwan, Hong Kong, Macau, South Korea, Singapore, the Malaysian Federation, the Kingdom of Thailand, the Republic of Indonesia, the Socialist Republic of Vietnam and the Republic of the Philippines (collectively, the “Territory”). The Company is eligible to receive up to an aggregate of $11.0 million in future clinical development and regulatory milestone payments and up to an aggregate of $20.0 million in sales milestone payments. The Company is also entitled to receive tiered royalties from Everest at percentages in the low double digits on sales, if any, in the Territory of products containing eravacycline. Royalties are payable with respect to each jurisdiction in the Territory until the latest to occur of: (1) the last-to-expire of specified patent rights in such jurisdiction in the Territory; (2) expiration of marketing or regulatory exclusivity in such jurisdiction in the Territory; or (3) 10 years after the first commercial sale of a product in such jurisdiction in the Territory. In addition, royalties payable under the Everest License will be subject to reduction on account of generic competition and after patent expiration in a jurisdiction, with any such reductions capped at certain percentages of the amounts otherwise payable during the applicable royalty payment period. Pursuant to the Everest License, Everest will be solely responsible for the development and commercialization of licensed products in the Territory. The Company agreed to use commercially reasonable efforts to manufacture drug product for clinical development, which will be paid by Everest at the cost to manufacture, as well as manufacture drug product for commercial supply, which will be paid by Everest at cost plus a reasonable margin. The Company has not yet entered into a commercial supply agreement with Everest, which would set the quantity and timing of commercial supply. Subsequent to July 28,

2020 and through September 30, 2020, the Company has not received any payments from Everest related to either royalties or clinical development and regulatory milestones.

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Company-wide Realignment

9 Months Ended

Sep. 30, 2020

Restructuring And Related Activities [Abstract]

Company-wide Realignment

11.  Company-wide Realignments

On December 2, 2019, the Board of Directors of the Company approved a restructuring plan (the “2019 Realignment”) that reduced the Company’s headcount. The 2019 Realignment did not result in any reductions in headcount in the Company’s commercial organization supporting its products. For the year ended December 31, 2019, total expense was comprised of $5.8 million for one-time termination benefits to the affected employees, including severance and health care benefits, offset by a $0.9 million reversal of non-cash, share-based compensation expense related to forfeited, unvested equity awards. As of September 30, 2020, the Company had paid $4.9 million of the $5.8 million cash severance and health care benefits charges, and the remaining $0.2 million of the health care benefits charges were included in accrued payroll and related expenses. The Company expects to complete making payments related to the 2019 Realignment by the end of the fourth quarter of 2020.

On May 28, 2020, the Board of Directors of the Company approved a restructuring plan (the “2020 Realignment”) to align its organization with the Company’s sole focus on the commercialization of its products. The 2020 Realignment reduced the Company’s headcount. For the nine months ended September 30, 2020, total expense was comprised of $4.1 million for one-time termination benefits to the affected employees, including severance and health care benefits, offset by a $0.4 million reversal of non-cash, share-based compensation expense related to forfeited, unvested equity awards. As of September 30, 2020, the Company had paid $2.6 million of the $4.1 million cash severance and health care benefits charges, and the remaining $1.5 million of the cash severance and health care benefits charges were included in accrued payroll and related expenses. The Company expects to complete making substantially all of the payments related to the 2020 Realignment by the end of the first quarter of 2021.

In connection with the acquisition of Tetraphase, the Company incurred one-time charges related to a reduction in the combined Company’s headcount. For the three and nine months ended September 30, 2020, total expense was comprised of $3.1 million for one-time termination benefits to the affected employees, including severance and health care benefits. As of September 30, 2020, the Company had paid $1.3 million of the $3.1 million cash severance and health care benefits charges, and the remaining $1.8 million of the cash severance and health care benefits charges were included in accrued payroll and related expenses. The Company expects to complete making substantially all of the payments related to this headcount reduction by the end of the second quarter of 2021.

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Acquisition of Tetraphase Pharmaceuticals, Inc

9 Months Ended

Sep. 30, 2020

Business Combinations [Abstract]

Acquisition of Tetraphase Pharmaceuticals, Inc

12.  Acquisition of Tetraphase Pharmaceuticals, Inc.

On June 24, 2020, La Jolla entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Tetraphase, a biopharmaceutical company focused on commercializing its novel tetracycline XERAVA to treat serious and life‑threatening infections, and TTP Merger Sub, Inc., a wholly owned subsidiary of La Jolla. On July 28, 2020, La Jolla completed its acquisition of Tetraphase for $43 million in upfront cash plus potential future cash payments of up to $16 million pursuant to contingent value rights (“CVRs”). The holders of the CVRs are entitled to receive potential future cash payments of up to $16 million in the aggregate upon the achievement of certain net sales of XERAVA in the U.S. as follows: (i) $2.5 million if 2021 XERAVA U.S. net sales are at least $20 million; (ii) $4.5 million if XERAVA U.S. net sales are at least $35 million during any calendar year ending on or prior to December 31, 2024; and (iii) $9 million if XERAVA U.S. net sales are at least $55 million during any calendar year ending on or prior to December 31, 2024. Following the acquisition, Tetraphase became a wholly owned subsidiary of La Jolla.

The acquisition of Tetraphase was accounted for as a business combination using the acquisition method pursuant to FASB ASC Topic 805. As the acquirer for accounting purposes, La Jolla has estimated the Purchase Price, assets acquired and liabilities assumed as of the acquisition date, with the excess of the Purchase Price over the fair value of net assets acquired recognized as goodwill. The estimated fair value of assets acquired and liabilities assumed in certain cases may be subject to revision based on the final determination of fair value.

The Purchase Price is comprised of the upfront cash of $43 million and the estimated fair value of potential future cash payments pursuant to the CVRs. The estimated fair value of assets acquired was $54.7 million, and the estimated fair value of liabilities assumed was $9.1 million.

The Purchase Price allocation as of the acquisition date is presented as follows (in thousands):

	July 28,
	2020
Cash	$	42,990
Fair value of CVRs		2,610
Total Purchase Price	$	45,600
Cash and cash equivalents		8,778
Accounts receivable		1,187
Inventory		4,767
Prepaid expenses and other current assets		1,218
Property and equipment		58
Right-of-use lease assets		2,302
Restricted cash		699
Identifiable intangible assets		15,520
Goodwill		20,123
Accounts payable		(1,400	)
Accrued expenses		(2,979	)
Lease liabilities, current portion		(967	)
Lease liabilities, less current portion		(1,420	)
Other noncurrent liabilities		(2,286	)
Total Purchase Price	$	45,600

The estimated fair value of potential future cash payments pursuant to the CVRs was based on a Monte Carlo simulation and is classified as Level 3 in the ASC Topic 820-10, three-tier fair value hierarchy.

The Company recorded a $3.3 million fair value step-up adjustment to Tetraphase’s inventory as of the acquisition date. Raw material components and active pharmaceutical ingredients were recorded based on estimated replacement cost. Finished drug product was valued at estimated selling cost, adjusted for costs of selling effort and a reasonable profit allowance for such selling effort from the viewpoint of a market participant. This fair value step-up adjustment is recorded as cost of products sales when the inventory is sold to Customers, $1.2 million of which was included in cost of product sales subsequent to July 28, 2020 and through September 30, 2020.

Identifiable intangible assets consist of certain technology and trade names acquired from Tetraphase, and include the value of the Harvard, Paratek and Everest Licenses (see Note 10). The acquired intangible assets have definite useful lives and are being amortized on a straight-line basis over an estimated useful life of 10 years. The acquired intangible assets are classified as Level 3 in the ASC Topic 820-10, three-tier fair value hierarchy.

Goodwill represents the excess of the Purchase Price over the fair value of the net assets acquired as of the acquisition date. Goodwill represents the value of the stronger platform to increase patient access to the Company’s commercial products and the operational synergies of the combined Company. Goodwill has an indefinite useful life and is not amortized. The goodwill is only deductible for tax purposes if the Company makes a U.S. Internal Revenue Code Section 338 (“Section 338”) election. The Company is currently evaluating whether to make a Section 338 election.

Subsequent to July 28, 2020 and through September 30, 2020, XERAVA U.S. net sales were $1.9 million and operating losses attributable to Tetraphase were $6.4 million, inclusive of $0.3 million of intangible asset amortization included in selling, general and administrative expense and $1.2 million of the inventory fair value step-up adjustment included in cost of product sales.

Acquisition-related expenses, which were comprised primarily of legal fees, were $0.3 million and $0.9 million for the three and nine months ended September 30, 2020, respectively, and were included in selling, general and administrative expense.

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Basis of Presentation and Summary of Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2020

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Basis of Presentation

Basis of Presentation and Use of Estimates

The accompanying condensed consolidated financial statements of the Company have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of SEC Regulation S-X. Accordingly, certain information and disclosures required by GAAP for annual financial statements have been omitted. In the opinion of management, all adjustments, consisting of normal recurring adjustments, considered necessary for a fair presentation have been included. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto for the year ended December 31, 2019 included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019, filed with the SEC on March 2, 2020 (the “Form 10-K”).

Principles of Consolidation

The accompanying condensed consolidated financial statements include the accounts of La Jolla Pharmaceutical Company and its wholly owned subsidiaries. All inter-company transactions and balances have been eliminated in consolidation.

Use of Estimates

The preparation of the Company’s condensed consolidated financial statements requires management to make estimates and assumptions that impact the reported amounts of assets, liabilities, revenue and expenses and the disclosure of contingent assets and liabilities in the Company’s condensed consolidated financial statements and the accompanying notes. Actual results may differ materially from these estimates. Certain amounts previously reported in the financial statements have been reclassified to conform to the current year presentation. Such reclassifications did not affect net loss, shareholders’ (deficit) equity or cash flows. The results of operations for the three and nine months ended September 30, 2020 are not necessarily indicative of the results to be expected for the full year or any future interim periods. The accompanying condensed consolidated balance sheet as of December 31, 2019 has been derived from the audited consolidated balance sheet as of December 31, 2019 contained in the Form 10-K.

Short-term investments

Short-term investments

Short-term investments are comprised of marketable equity securities that are “available-for-sale,” as such term is defined by the Financial Accounting Standards Board (the “FASB”) Accounting Standards Codification (“ASC”) Topic 320. Marketable equity securities are classified as current assets. Short-term investments are measured at fair value, and unrealized gains and losses are recorded in other income (expense), net in the consolidated statements of operations. Overnight sweep accounts are classified as cash and cash equivalents.

Concentration of Credit Risk

Concentration of Credit Risk

Financial instruments that potentially subject the Company to concentration of credit risk consist of cash and accounts receivable. The Company maintains its cash in checking and savings accounts at federally insured financial institutions in excess of federally insured limits.

Revenue Recognition

Revenue Recognition

The Company has adopted FASB ASC Topic 606—Revenue from Contracts with Customers (“ASC 606”). Under ASC 606, the Company recognizes revenue when its Customers obtain control of the Company’s product, which typically occurs on delivery. Revenue is recognized in an amount that reflects the consideration that the Company expects to receive in exchange for those goods. To determine revenue recognition for contracts with Customers within the scope of ASC 606, the Company performs the following 5 steps: (i) identify the contract(s) with a Customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) the entity satisfies the relevant performance obligations. There have been no contract assets or liabilities recorded to date relating to product sales.

Revenue from product sales is recorded at the transaction price, net of estimates for variable consideration consisting of chargebacks, discounts, returns and administrative fees. Variable consideration is estimated using the expected-value amount method, which is the sum of probability-weighted amounts in a range of possible consideration amounts. Actual amounts of consideration ultimately received may differ from the Company’s estimates. If actual results vary materially from the Company’s estimates, the Company will adjust these estimates, which will affect revenue from product sales and earnings in the period such estimates are adjusted. These items include:

• Chargebacks—Chargebacks are discounts the Company provides to distributors in the event that the sales prices to end users are below the distributors’ acquisition price. This may occur due to a direct contract with a health system, a group purchasing organization (“GPO”) agreement or a sale to a government facility. Chargebacks are estimated based on known chargeback rates and recorded as a reduction of revenue on delivery to Customers.

• Discounts—The Company offers Customers various forms of incentives and consideration, including prompt-pay and other discounts. The Company estimates discounts primarily based on contractual terms. These discounts are recorded as a reduction of revenue on delivery to Customers.

• Returns—The Company offers Customers a limited right of return, generally for damaged or expired product. The Company estimates returns based on an internal analysis, which includes actual experience. The estimates for returns are recorded as a reduction of revenue on delivery to Customers.

• Administrative Fees—The Company pays administrative fees to GPOs for services and access to data. Additionally, the Company pays an Industrial Funding Fee as part of the U.S. General Services Administration’s Federal Supply Schedules program. These fees are based on contracted terms and are paid after the quarter in which the product was purchased by the applicable GPO or government agency.

The Company will continue to assess its estimates of variable consideration as it accumulates additional historical data and will adjust these estimates accordingly.

Business Combinations

Business Combinations

The Company accounts for business combinations using the acquisition method pursuant to FASB ASC Topic 805. This method requires, among other things, that results of operations of acquired companies are included in La Jolla's financial results beginning on the respective acquisition dates, and that assets acquired and liabilities assumed are recognized at fair value as of the acquisition date. Intangible assets acquired in a business combination are recorded at fair value using a discounted cash flow model. The discounted cash flow model requires assumptions about the timing and amount of future net cash flows, the cost of capital and terminal values from the perspective of a market participant. Any excess of the fair value of consideration transferred (the “Purchase Price”) over the fair values of the net assets acquired is recognized as goodwill. Contingent consideration liabilities are recognized as part of the Purchase Price at the estimated fair value on the acquisition date. Subsequent changes to the fair value of contingent consideration liabilities will be included in other income (expense), net in the consolidated statements of operations. The fair value of assets acquired and liabilities assumed in certain cases may be subject to revision based on the final determination of fair value during a period of time not to exceed 12 months from the acquisition date. Legal costs, due diligence costs, business valuation costs and all other acquisition-related costs are expensed when incurred.

Intangible Assets

Intangible Assets

Intangible assets acquired in a business combination are initially recorded at fair value. Intangible assets with a definite useful life are amortized on a straight-line basis over the estimated useful life of the related assets. Intangible assets with an indefinite useful life are not amortized.

The Company reviews its intangible assets for impairment at least annually or whenever events or changes in circumstances indicate that the carrying value of an asset may not be recoverable. If such circumstances are determined to exist, an estimate of undiscounted future cash flows produced by the asset, including its eventual residual value, is compared to the carrying value to determine whether impairment exists. In the event that such cash flows are not expected to be sufficient to recover the carrying amount of the assets, the assets are written down to their estimated fair values. Fair value is estimated through discounted cash flow models to project cash flows from the asset.

Goodwill

Goodwill

Goodwill represents the excess of the Purchase Price over the fair value of the net assets acquired as of the acquisition date. Goodwill has an indefinite useful life and is not amortized.

The Company reviews its goodwill for impairment at least annually or whenever events or changes in circumstances indicate that the carrying amount of the Company may exceed its fair value. The Company first assesses qualitative factors to determine whether it is more likely than not that the fair value of the Company is less than its carrying amount, including goodwill. If that is not the case, the Company has completed its goodwill impairment test and does not recognize an impairment charge. However, if that is the case, the Company performs a quantitative impairment test, and, if the carrying amount of the Company exceeds its fair value, then the Company will recognize an impairment charge for the amount by which its carrying amount exceeds its fair value, not to exceed the carrying amount of the goodwill.

Recent Accounting Pronouncements

Recent Accounting Pronouncements

Management has considered all recent accounting pronouncements and has concluded that there are no recently issued accounting pronouncements that may have a material effect on the Company’s results of operations, financial condition or cash flows based on current information.

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Basis of Presentation and Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2020

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Schedule of Concentration Risk

The following table includes the percentage of U.S. net product sales and accounts receivable balances for the Company’s three major Customers, each of which comprised 10% or more of its U.S. net product sales:

	U.S. Net Product Sales						Accounts Receivable
	Three Months Ended			Nine Months Ended
	September 30, 2020			September 30, 2020			As of September 30, 2020
Customer A		37	%		38	%		28	%
Customer B		33	%		32	%		34	%
Customer C		26	%		27	%		33	%
Total		96	%		97	%		95	%

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Balance Sheet Details (Tables)

9 Months Ended

Sep. 30, 2020

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Schedule of Inventory

Inventory, net consisted of the following (in thousands):

	September 30,		December 31,
	2020		2019
Raw materials	$	802	$	-
Work-in-process		2,340		1,505
Finished goods		4,132		706
Total inventory, net	$	7,274	$	2,211

Property, Plant and Equipment

Property and equipment, net consisted of the following (in thousands):

	September 30,			December 31,
	2020			2019
Software	$	733		$	733
Furniture and fixtures		598			2,598
Leasehold improvements		386			14,504
Computer hardware		310			1,296
Lab equipment		-			9,665
Total property and equipment, gross		2,027			28,796
Accumulated depreciation and amortization		(1,743	)		(10,407	)
Total property and equipment, net	$	284		$	18,389

Schedule of Intangible Assets, Net

Intangible assets, net consisted of the following (in thousands):

	September 30,			December 31,
	2020			2019
Technology	$	14,000		$	-
Trade name		1,520			-
Total intangible assets, gross		15,520			-
Accumulated amortization		(259	)		-
Total intangible assets, net	$	15,261		$	-

Accrued Expenses

Accrued expenses consisted of the following (in thousands):

	September 30,		December 31,
	2020		2019
Accrued interest expense	$	3,870	$	2,692
Accrued manufacturing costs		1,449		1,339
Accrued clinical study costs		426		3,496
Accrued other		1,938		1,785
Total accrued expenses	$	7,683	$	9,312

Schedule of Other Noncurrent Liabilities

Other noncurrent liabilities consisted of the following (in thousands):

	September 30,		December 31,
	2020		2019
Accrued interest expense	$	16,909	$	12,790
Fair value of CVRs (see Note 12)		2,610		-
Paycheck Protection Program loan		2,286		-
Total other noncurrent liabilities	$	21,805	$	12,790

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Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2020

Leases [Abstract]

Lessee, Operating Lease, Liability, Maturity

Future minimum lease payments, excluding Lease Operating Costs, under the Watertown Lease as of September 30, 2020 are as follows (in thousands):

2020	$	281
2021		1,138
2022		1,027
Thereafter		-
Total future minimum lease payments		2,446
Less: discount		(212	)
Total lease liabilities	$	2,234

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Equity Incentive Plans (Tables)

9 Months Ended

Sep. 30, 2020

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Equity Award Activity

The activity related to equity awards, which are comprised of stock options and inducement grants, during the nine months ended September 30, 2020 is summarized as follows:

	Equity Awards			Weighted-average Exercise Price per Share		Weighted-average Remaining Contractual Term (years)		Aggregate Intrinsic Value
Outstanding at December 31, 2019		5,616,840		$	19.50
Granted		1,802,860		$	4.70
Exercised		(94,219	)	$	6.42
Cancelled/forfeited		(4,000,059	)	$	18.74
Outstanding at September 30, 2020		3,325,422		$	12.77		7.43	$	-
Exercisable at September 30, 2020		1,466,036		$	20.53		5.52	$	-

Share-based Compensation Expense

The classification of share-based compensation expense is summarized as follows (in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
Research and development	$	691	$	4,169	$	3,218	$	12,062
Selling, general and administrative		697		2,250		2,167		7,460
Total share-based compensation expense	$	1,388	$	6,419	$	5,385	$	19,522

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Acquisition of Tetraphase Pharmaceuticals, Inc (Tables)

9 Months Ended

Sep. 30, 2020

Business Combinations [Abstract]

Summary of Purchase Price Allocation as of Acquisition Date

The Purchase Price allocation as of the acquisition date is presented as follows (in thousands):

	July 28,
	2020
Cash	$	42,990
Fair value of CVRs		2,610
Total Purchase Price	$	45,600
Cash and cash equivalents		8,778
Accounts receivable		1,187
Inventory		4,767
Prepaid expenses and other current assets		1,218
Property and equipment		58
Right-of-use lease assets		2,302
Restricted cash		699
Identifiable intangible assets		15,520
Goodwill		20,123
Accounts payable		(1,400	)
Accrued expenses		(2,979	)
Lease liabilities, current portion		(967	)
Lease liabilities, less current portion		(1,420	)
Other noncurrent liabilities		(2,286	)
Total Purchase Price	$	45,600

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Business - Additional Information (Details) - USD ($) $ in Thousands	Jul. 28, 2020	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019
Business Acquisition [Line Items]
Cash and cash equivalents		$ 27,760	$ 87,820	$ 104,768
Tetraphase Pharmaceuticals, Inc.
Business Acquisition [Line Items]
Upfront cash for acquisition	$ 42,990
Future cash payments	$ 16,000

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Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Details)	9 Months Ended
	Sep. 30, 2020 Hospital Customer
Concentration Risk [Line Items]
Number of major customers | Customer	3
U.S.
Concentration Risk [Line Items]
Number of hospitals purchased GIAPREZA	468
Number of hospitals purchased XERAVA	646

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Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Concentration Risk (Details)	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020
U.S. Net Product Sales
Concentration Risk [Line Items]
Concentration of credit risk	96.00%	97.00%
Accounts Receivable
Concentration Risk [Line Items]
Concentration of credit risk		95.00%
Customer A | U.S. Net Product Sales
Concentration Risk [Line Items]
Concentration of credit risk	37.00%	38.00%
Customer A | Accounts Receivable
Concentration Risk [Line Items]
Concentration of credit risk		28.00%
Customer B | U.S. Net Product Sales
Concentration Risk [Line Items]
Concentration of credit risk	33.00%	32.00%
Customer B | Accounts Receivable
Concentration Risk [Line Items]
Concentration of credit risk		34.00%
Customer C | U.S. Net Product Sales
Concentration Risk [Line Items]
Concentration of credit risk	26.00%	27.00%
Customer C | Accounts Receivable
Concentration Risk [Line Items]
Concentration of credit risk		33.00%

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Net Loss per Share (Details) - shares shares in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Earnings Per Share [Abstract]
Potentially dilutive common shares related to the outstanding preferred stock, stock options, restricted stock units and warrants (in shares)	10.0	13.7

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Balance Sheet Details - Additional Information (Details) - USD ($)	1 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019
Restricted Cash And Cash Equivalents Items [Line Items]
Restricted cash	$ 699,000	$ 699,000		$ 909,000
Inventory, net	7,274,000	7,274,000	$ 2,211,000
Inventory reserves	200,000	200,000	100,000
Proceeds from disposal of tenant improvements and certain equipment		3,070,000
Tetraphase Pharmaceuticals, Inc. | Fair Value Step-Up Adjustment to Inventory
Restricted Cash And Cash Equivalents Items [Line Items]
Inventory, net	2,100,000	2,100,000
San Diego Lease
Restricted Cash And Cash Equivalents Items [Line Items]
Loss on termination of lease	12,900,000
Proceeds from disposal of tenant improvements and certain equipment	3,100,000
Credit Card
Restricted Cash And Cash Equivalents Items [Line Items]
Restricted cash	500,000	500,000	40,000
Standby Letters of Credit | Watertown Lease
Restricted Cash And Cash Equivalents Items [Line Items]
Restricted cash	$ 200,000	$ 200,000
Standby Letters of Credit | San Diego Lease
Restricted Cash And Cash Equivalents Items [Line Items]
Restricted cash			$ 900,000

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Balance Sheet Details - Schedule of Inventory (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Raw materials	$ 802
Work-in-process	2,340	$ 1,505
Finished goods	4,132	706
Total inventory, net	$ 7,274	$ 2,211

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Balance Sheet Details - Property Plant and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Property Plant And Equipment [Line Items]
Total property and equipment, gross	$ 2,027	$ 28,796
Accumulated depreciation and amortization	(1,743)	(10,407)
Total property and equipment, net	284	18,389
Leasehold Improvements [Member]
Property Plant And Equipment [Line Items]
Total property and equipment, gross	386	14,504
Furniture and Fixtures [Member]
Property Plant And Equipment [Line Items]
Total property and equipment, gross	598	2,598
Computer Equipment [Member]
Property Plant And Equipment [Line Items]
Total property and equipment, gross	310	1,296
Software and Software Development Costs [Member]
Property Plant And Equipment [Line Items]
Total property and equipment, gross	$ 733	733
Lab Equipment [Member]
Property Plant And Equipment [Line Items]
Total property and equipment, gross		$ 9,665

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Balance Sheet Details - Schedule of Intangible Assets, Net (Details) $ in Thousands	Sep. 30, 2020 USD ($)
Finite Lived Intangible Assets [Line Items]
Total intangible assets, gross	$ 15,520
Accumulated amortization	(259)
Total intangible assets, net	15,261
Technology
Finite Lived Intangible Assets [Line Items]
Total intangible assets, gross	14,000
Trade Name
Finite Lived Intangible Assets [Line Items]
Total intangible assets, gross	$ 1,520

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Balance Sheet Details - Summary of Accrued Expenses (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Accrued interest expense	$ 3,870	$ 2,692
Accrued manufacturing costs	1,449	1,339
Accrued clinical study costs	426	3,496
Accrued other	1,938	1,785
Total accrued expenses	$ 7,683	$ 9,312

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Balance Sheet Details - Schedule of Other Noncurrent Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Other Liabilities Noncurrent [Abstract]
Accrued interest expense	$ 16,909	$ 12,790
Fair value of CVRs (see Note 12)	2,610
Paycheck Protection Program loan	2,286
Total other noncurrent liabilities	$ 21,805	$ 12,790

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Deferred Royalty Obligation - Additional Information (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	May 10, 2018	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Debt Instrument [Line Items]
Deferred royalty obligation, net		$ 124,421		$ 124,421		$ 124,379
Interest expense		2,500	$ 2,800	7,400	$ 8,400
Royalty Obligation Payable		700		700
HealthCare Royalty Partners
Debt Instrument [Line Items]
Proceeds from royalty agreement	$ 125,000
Required payment for breach of agreement, payment two	225,000
Required payment for breach of agreement, payment one	125,000
HealthCare Royalty Partners | Royalty Financing Agreement | Loans Payable
Debt Instrument [Line Items]
Deferred royalty obligation, net	125,000	124,400		124,400
Debt issuance costs	$ 700
Unamortized debt discount		600		600
Accrued interest expense		20,800		20,800		15,500
Royalty payments		600		2,100
HealthCare Royalty Partners | Royalty Financing Agreement | Loans Payable | Other Noncurrent Liabilities
Debt Instrument [Line Items]
Accrued interest expense		$ 16,900		$ 16,900		$ 12,800
HealthCare Royalty Partners | Period One
Debt Instrument [Line Items]
Maximum potential royalty payout	10.00%
HealthCare Royalty Partners | Period Two
Debt Instrument [Line Items]
Increase in maximum potential payout percent	4.00%
HealthCare Royalty Partners | Payout Period
Debt Instrument [Line Items]
Increase in maximum potential payout percent	4.00%

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Commitments and Contingencies - Additional Information (Details)		1 Months Ended			2 Months Ended	3 Months Ended		9 Months Ended
	Dec. 29, 2016 USD ($)	Sep. 30, 2020 USD ($)	Jan. 31, 2020 ft²	Nov. 30, 2018	Sep. 30, 2020 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Jul. 28, 2020 USD ($)	Feb. 01, 2020 ft²	Dec. 31, 2019 USD ($) ft²	Oct. 30, 2019 USD ($)
Lessee Lease Description [Line Items]
Restricted cash		$ 699,000			$ 699,000	$ 699,000		$ 699,000				$ 909,000
Right-of-use lease assets		2,150,000			2,150,000	2,150,000		2,150,000				$ 15,491,000
Tetraphase Pharmaceuticals, Inc.
Lessee Lease Description [Line Items]
Restricted cash		200,000			200,000	200,000		200,000
Standby Letters of Credit | Tetraphase Pharmaceuticals, Inc.
Lessee Lease Description [Line Items]
Security deposit		200,000			200,000	200,000		$ 200,000
San Diego Lease
Lessee Lease Description [Line Items]
Term of lease contract	10 years
Renewal term of lease contract	5 years
Lessee, Operating Lease, Existence of Option to Extend [true false]	true
Operating ease option to extend								The Company had an option to extend the San Diego Lease for an additional 5 years at the end of the Initial Lease Term
Lessee, Operating Lease, Existence of Option to Terminate [true false]								true
Lessee, option to terminate, description								On August 6, 2020, La Jolla received notice from the Landlord that the Landlord exercised its option to terminate the San Diego Lease effective August 31, 2020.
Loss on termination of lease		12,900,000
Restricted cash		0			0	0		$ 0
Right-of-use lease assets		0			0	0		0
Operating lease, liability		0			0	0		0
Lease expense						500,000	$ 700,000	$ 1,800,000	$ 2,100,000
San Diego Lease | Standby Letters of Credit
Lessee Lease Description [Line Items]
Security deposit	$ 900,000												$ 600,000
Tetraphase Agreement with Watertown Lease
Lessee Lease Description [Line Items]
Lessee, Operating Lease, Existence of Option to Extend [true false]				true
Operating ease option to extend								. In November 2018, Tetraphase entered into an Eighth Amendment to the Watertown Lease to extend the term of the lease through November 30, 2022 (the “Lease Term”).
Premises space leased | ft²											21,539	37,438
Decrease in space of premises lease | ft²			15,899
Aggregate remaining payments under lease										$ 2,600
Watertown Lease
Lessee Lease Description [Line Items]
Operating lease, liability		2,234,000			2,234,000	2,234,000		$ 2,234,000
Lease expense					200,000
Aggregate remaining payments under lease		$ 2,446,000			$ 2,446,000	$ 2,446,000		$ 2,446,000

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Commitments and Contingencies - Lease Liability Maturity (Details) - Watertown Lease $ in Thousands	Sep. 30, 2020 USD ($)
Lessee Lease Description [Line Items]
2020	$ 281
2021	1,138
2022	1,027
Total future minimum lease payments	2,446
Less: discount	(212)
Operating lease, liability	$ 2,234

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Shareholders Deficit (Details) - shares	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Jan. 31, 2019
Class Of Stock [Line Items]
Preferred stock, shares issued (in shares)	3,906	3,906
Convertible Preferred Stock, Shares Reserved for Future Issuance	6,735,378		6,735,378
Common Stock
Class Of Stock [Line Items]
Shares issued upon conversion (in share)				782,031
Series F Convertible Preferred Stock [Member]
Class Of Stock [Line Items]
Preferred stock, shares issued (in shares)	0	0		2,737

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Equity Incentive Plans (Narrative) (Details) $ in Millions	9 Months Ended
	Sep. 30, 2020 USD ($) shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unamortized share-based compensation expense | $	$ 8.0
Recognized weighted average period	2 years 7 months 6 days
2013 Equity Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares reserved for issuance	9,600,000
Shares available for grant (in shares)	6,061,242
2018 Employee Stock Purchase Plan [Member] | Share-based Payment Arrangement, Option [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares reserved for issuance	750,000
Shares available for grant (in shares)	480,368

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Equity Incentive Plans (Stock Option Activity) (Details)	9 Months Ended
	Sep. 30, 2020 $ / shares shares
Shares Underlying Stock Options
Outstanding beginning balance, Shares underlying stock options and restricted stock awards (in shares) | shares	5,616,840
Granted, Shares underlying stock options and restricted stock awards (in shares) | shares	1,802,860
Exercised, Shares underlying stock options and restricted stock awards (in shares) | shares	(94,219)
Cancelled/Forfeited, Shares underlying stock options and restricted stock awards (in shares) | shares	(4,000,059)
Outstanding ending balance, Shares underlying stock options and restricted stock awards (in shares) | shares	3,325,422
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Shares | shares	1,466,036
Weighted- Average Exercise Price per Share
Outstanding beginning balance, Weighted - average exercise price (usd per share) | $ / shares	$ 19.50
Granted, Weighted - average exercise price (usd per share) | $ / shares	4.70
Exercised, Weighted - average exercise price (usd per share) | $ / shares	6.42
Cancelled/forfeited, Weighted - average exercise price (usd per share) | $ / shares	18.74
Outstanding ending balance, Weighted - average exercise price (usd per share) | $ / shares	12.77
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price | $ / shares	$ 20.53
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	7 years 5 months 4 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	5 years 6 months 7 days

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Equity Incentive Plans (Share-based Compensation Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 1,388	$ 6,419	$ 5,385	$ 19,522
Research and development [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	691	4,169	3,218	12,062
Selling, General and Administrative Expenses [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 697	$ 2,250	$ 2,167	$ 7,460

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Other Income-Related Party - Additional Information (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2020 USD ($)
Related Party Transactions [Abstract]
Other income—related party	$ 4,085

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License Agreements - Additional Information (Details) - USD ($)	2 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Mar. 31, 2020	Sep. 30, 2020
George Washington
Research And Development Arrangement Contract To Perform For Others [Line Items]
Milestone payment			$ 500,000
Percentage of royalty on net sales				6.00%
Royalty payments		$ 300		$ 1,200
Harvard
Research And Development Arrangement Contract To Perform For Others [Line Items]
Clinical development and regulatory milestones amount payable				15,100,000
Royalties payment	$ 100,000
Payments related to clinical development and regulatory milestone payments	0
Paratek
Research And Development Arrangement Contract To Perform For Others [Line Items]
Royalties payment	33,000
Tetraphase and Everest Medicines Limited
Research And Development Arrangement Contract To Perform For Others [Line Items]
Future clinical development and regulatory milestone payments receivable	11,000,000.0	11,000,000.0		11,000,000.0
Sales milestone payments receivable	20,000,000.0	$ 20,000,000.0		$ 20,000,000.0
Royalties payable description				Royalties are payable with respect to each jurisdiction in the Territory until the latest to occur of: (1) the last-to-expire of specified patent rights in such jurisdiction in the Territory; (2) expiration of marketing or regulatory exclusivity in such jurisdiction in the Territory; or (3) 10 years after the first commercial sale of a product in such jurisdiction in the Territory.
Royalties payable period after first commercial sale of product				10 years
Payment received related to royalties or clinical development and regulatory milestones	$ 0

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Company-wide Realignments - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Dec. 31, 2019
Restructuring Cost And Reserve [Line Items]
Restructuring charges		$ 0.2
Reversal of non-cash-stock-based compensation expense		0.4	$ 0.9
Restructuring costs		5.8	$ 5.8
One time termination benefits		4.1
Payments for restructuring		2.6
Tetraphase Pharmaceuticals, Inc.
Restructuring Cost And Reserve [Line Items]
Restructuring costs	$ 3.1	3.1
Payments for restructuring		1.3
Accrued Payroll and Related Expenses
Restructuring Cost And Reserve [Line Items]
Restructuring charges		1.5
Payments for restructuring		4.9
Accrued Payroll and Related Expenses | Tetraphase Pharmaceuticals, Inc.
Restructuring Cost And Reserve [Line Items]
Restructuring charges		$ 1.8

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Acquisition of Tetraphase Pharmaceuticals, Inc. Additional Information (Details) - USD ($) $ in Thousands		2 Months Ended	3 Months Ended		9 Months Ended
	Jul. 28, 2020	Sep. 30, 2020	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Business Acquisition [Line Items]
Inventory fair value step up adjustment					$ 1,186
Net product sales			$ 9,072	$ 5,706	22,468	$ 15,804
Amortization of intangible assets					$ 259
Tetraphase Pharmaceuticals, Inc.
Business Acquisition [Line Items]
Business acquisition, date of acquisition agreement	Jun. 24, 2020
Upfront cash for acquisition	$ 42,990
Future cash payments	16,000
Additional aggregate payments	16,000
Business acquisition, description					The holders of the CVRs are entitled to receive potential future cash payments of up to $16 million in the aggregate upon the achievement of certain net sales of XERAVA in the U.S. as follows: (i) $2.5 million if 2021 XERAVA U.S. net sales are at least $20 million; (ii) $4.5 million if XERAVA U.S. net sales are at least $35 million during any calendar year ending on or prior to December 31, 2024; and (iii) $9 million if XERAVA U.S. net sales are at least $55 million during any calendar year ending on or prior to December 31, 2024.
Estimated fair value of assets acquired	54,700
Estimated fair value of liabilities assumed	9,100
Inventory fair value step up adjustment	$ 3,300
Definite-lived intangible assets estimated useful life	10 years
Tetraphase Pharmaceuticals, Inc. | XERAVA
Business Acquisition [Line Items]
Net product sales		$ 1,900
Operating losses		6,400
Tetraphase Pharmaceuticals, Inc. | Cost of Product Sales
Business Acquisition [Line Items]
Inventory fair value step up adjustment		1,200
Tetraphase Pharmaceuticals, Inc. | Cost of Product Sales | XERAVA
Business Acquisition [Line Items]
Inventory fair value step up adjustment		1,200
Tetraphase Pharmaceuticals, Inc. | Selling, General and Administrative Expenses
Business Acquisition [Line Items]
Legal Fees			$ 300		$ 900
Tetraphase Pharmaceuticals, Inc. | Selling, General and Administrative Expenses | XERAVA
Business Acquisition [Line Items]
Amortization of intangible assets		$ 300
Agreement 1 | Tetraphase Pharmaceuticals, Inc.
Business Acquisition [Line Items]
Proceeds from businesses and interest in affiliates	$ 2,500
Net sales from related parties	20,000
Agreement 2 | Tetraphase Pharmaceuticals, Inc.
Business Acquisition [Line Items]
Proceeds from businesses and interest in affiliates	4,500
Net sales from related parties	35,000
Agreement 3 | Tetraphase Pharmaceuticals, Inc.
Business Acquisition [Line Items]
Proceeds from businesses and interest in affiliates	9,000
Net sales from related parties	$ 55,000

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Acquisition of Tetraphase Pharmaceuticals, Inc - Summary of Purchase Price Allocation as of Acquisition Date (Details) - USD ($) $ in Thousands	Jul. 28, 2020	Sep. 30, 2020
Business Acquisition [Line Items]
Goodwill		$ 20,123
Tetraphase Pharmaceuticals, Inc.
Business Acquisition [Line Items]
Cash	$ 42,990
Fair value of CVRs	2,610
Total Purchase Price	45,600
Cash and cash equivalents	8,778
Accounts receivable	1,187
Inventory	4,767
Prepaid expenses and other current assets	1,218
Property and equipment	58
Right-of-use lease assets	2,302
Restricted cash	699
Identifiable intangible assets	15,520
Goodwill	20,123
Accounts payable	(1,400)
Accrued expenses	(2,979)
Lease liabilities, current portion	(967)
Lease liabilities, less current portion	(1,420)
Other noncurrent liabilities	$ (2,286)