LIQUIDITY AND NEED FOR ADDITIONAL CAPITAL	6 Months Ended
Jun. 30, 2020
Liquidity And Need For Additional Capital
LIQUIDITY AND NEED FOR ADDITIONAL CAPITAL	2. LIQUIDITY AND NEED FOR ADDITIONAL CAPITAL The Company has experienced recurring losses and cash outflows from operating activities. As of June 30, 2020, the Company had an accumulated deficit of $461.1 million. As of June 30, 2020, the Company had cash and cash equivalents of $30.5 million. The Company has been funded historically through sales of equity and debt. On April 10, 2019, the Company completed an underwritten offering providing for the issuance and sale of 3,418,918 shares of the Company’s common stock, par value $0.001 per share, at an offering price of $8.51 per share, for net proceeds of approximately $27.9 million, after deducting offering expenses payable by the Company. On December 5, 2019, the Company entered into an Equity Purchase Agreement (the “Purchase Agreement”), with Keystone Capital Partners, LLC (“Keystone”), pursuant to which Keystone has agreed to purchase from the Company up to $25.0 million of shares of its common stock, subject to certain limitations including a minimum stock price of $2.00, at the direction of the Company from time to time during the 36-month term of the Purchase Agreement. Concurrently, the Company entered into a Registration Rights Agreement with Keystone, pursuant to which it agreed to register the sales of its common stock pursuant to the Purchase Agreement under the Company’s existing shelf registration statement on Form S-3 or a new registration statement. On December 19, 2019, the Company sold 54,090 shares under the Purchase Agreement at a purchase price of $2.31 per share, for total proceeds of $0.1 million. During the three months ended March 31, 2020, the Company completed four additional sales of common stock to Keystone under the Purchase Agreement for a total of 216,412 shares generating total gross proceeds of $0.6 million. On February 14, 2020, the Company completed an underwritten offering of 10,638,298 shares of its common stock and warrants to purchase 10,638,298 shares of common stock. Each common share and warrant were sold together for a combined public purchase price of $2.35 before underwriting discount and commission. The exercise price of each warrant is $2.80 per share, the warrants were exercisable immediately, and they will expire February 12, 2027. The net proceeds to the Company from the offering were $22.5 million, after offering expenses payable by the Company. In connection with this agreement, the Company agreed not to sell any additional shares under the Keystone Purchase Agreement for a period of 90 days after the closing date of the offering. The Company entered into a promissory note for $3.6 million under the Paycheck Protection Program on April 12, 2020. Additional details are available in note 12. The Company does not expect existing cash as of June 30, 2020 to be sufficient to fund the Company’s operations for at least twelve months from the date of filing. These financial statements have been prepared on a going concern basis, which assumes the Company will continue to realize its assets and settle its liabilities in the normal course of business. The Company has incurred recurring losses and negative cash flows, has not yet generated material revenue from operations, and will require additional funds to maintain its operations. These factors raise substantial doubt regarding the Company’s ability to continue as a going concern within one year after these condensed consolidated financial statements are issued. In the second quarter of 2020 the Company took steps to reduce cash burn by reducing payroll expense, adopting a salary and wage reduction, and reducing discretionary spending across the organization to minimal levels. The Company will seek additional capital through equity offerings or debt financing. However, such financing may not be available in the future on favorable terms, if at all. If adequate financing is not available, the Company may be required to delay, reduce the scope of, or eliminate one or more of its product development programs, or be unable to continue operations over a longer term.

LIQUIDITY AND NEED FOR ADDITIONAL CAPITAL

6 Months Ended

Jun. 30, 2020

Liquidity And Need For Additional Capital

LIQUIDITY AND NEED FOR ADDITIONAL CAPITAL

2. LIQUIDITY AND NEED FOR ADDITIONAL CAPITAL

The Company has experienced recurring losses and cash outflows from operating activities. As of June 30, 2020, the Company had an accumulated deficit of $461.1 million. As of June 30, 2020, the Company had cash and cash equivalents of $30.5 million. The Company has been funded historically through sales of equity and debt.

On April 10, 2019, the Company completed an underwritten offering providing for the issuance and sale of 3,418,918 shares of the Company’s common stock, par value $0.001 per share, at an offering price of $8.51 per share, for net proceeds of approximately $27.9 million, after deducting offering expenses payable by the Company.

On December 5, 2019, the Company entered into an Equity Purchase Agreement (the “Purchase Agreement”), with Keystone Capital Partners, LLC (“Keystone”), pursuant to which Keystone has agreed to purchase from the Company up to $25.0 million of shares of its common stock, subject to certain limitations including a minimum stock price of $2.00, at the direction of the Company from time to time during the 36-month term of the Purchase Agreement. Concurrently, the Company entered into a Registration Rights Agreement with Keystone, pursuant to which it agreed to register the sales of its common stock pursuant to the Purchase Agreement under the Company’s existing shelf registration statement on Form S-3 or a new registration statement. On December 19, 2019, the Company sold 54,090 shares under the Purchase Agreement at a purchase price of $2.31 per share, for total proceeds of $0.1 million. During the three months ended March 31, 2020, the Company completed four additional sales of common stock to Keystone under the Purchase Agreement for a total of 216,412 shares generating total gross proceeds of $0.6 million.

On February 14, 2020, the Company completed an underwritten offering of 10,638,298 shares of its common stock and warrants to purchase 10,638,298 shares of common stock. Each common share and warrant were sold together for a combined public purchase price of $2.35 before underwriting discount and commission. The exercise price of each warrant is $2.80 per share, the warrants were exercisable immediately, and they will expire February 12, 2027. The net proceeds to the Company from the offering were $22.5 million, after offering expenses payable by the Company. In connection with this agreement, the Company agreed not to sell any additional shares under the Keystone Purchase Agreement for a period of 90 days after the closing date of the offering.

The Company entered into a promissory note for $3.6 million under the Paycheck Protection Program on April 12, 2020. Additional details are available in note 12.

The Company does not expect existing cash as of June 30, 2020 to be sufficient to fund the Company’s operations for at least twelve months from the date of filing. These financial statements have been prepared on a going concern basis, which assumes the Company will continue to realize its assets and settle its liabilities in the normal course of business. The Company has incurred recurring losses and negative cash flows, has not yet generated material revenue from operations, and will require additional funds to maintain its operations. These factors raise substantial doubt regarding the Company’s ability to continue as a going concern within one year after these condensed consolidated financial statements are issued.

In the second quarter of 2020 the Company took steps to reduce cash burn by reducing payroll expense, adopting a salary and wage reduction, and reducing discretionary spending across the organization to minimal levels. The Company will seek additional capital through equity offerings or debt financing. However, such financing may not be available in the future on favorable terms, if at all. If adequate financing is not available, the Company may be required to delay, reduce the scope of, or eliminate one or more of its product development programs, or be unable to continue operations over a longer term.