Organization and Basis of Presentation

3 Months Ended

Mar. 31, 2014

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization and Basis of Presentation

Organization and Basis of Presentation

Zogenix, Inc.(the Company) is a pharmaceutical company committed to developing and commercializing therapies that address specific clinical needs for people living with pain-related conditions and central nervous system disorders who need innovative treatment alternatives to help them return to normal daily functioning. On October 25, 2013, the Company received marketing approval from the U.S. Food and Drug Administration (FDA) for Zohydro™ ER (hydrocodone bitartrate) extended-release capsules, the first extended-release oral formulation of hydrocodone without acetaminophen. Zohydro ER is an opioid agonist for the management of pain severe enough to require daily, around-the-clock, long-term opioid treatment and for which alternative treatment options are inadequate. The Company launched Zohydro ER in March 2014.

The Company’s first commercial product, Sumavel® DosePro® (sumatriptan injection) Needle-free Delivery System, was launched in January 2010. Sumavel DosePro offers fast-acting, easy-to-use, needle-free subcutaneous administration of sumatriptan for the acute treatment of migraine and cluster headache in a pre-filled, single-use delivery system. Sumavel DosePro is the first drug product approved by the FDA that allows for the needle-free, subcutaneous delivery of medication.

The Company was incorporated in the state of Delaware on May 11, 2006 as SJ2 Therapeutics, Inc. and commenced operations on August 25, 2006. On August 28, 2006, the Company changed its name to Zogenix, Inc.

The Company has incurred significant net losses since inception and has relied on its ability to fund its operations through equity financings, debt financings, revenues from the sale of Sumavel DosePro and proceeds from business collaborations. As the Company continues to incur losses, successful transition to profitability is dependent upon achieving a level of revenues adequate to support the Company’s cost structure. This may not occur and, unless and until it does, the Company will continue to need to raise additional cash. These conditions raise substantial doubt about the Company’s ability to continue as a going concern. The accompanying financial statements have been prepared assuming that the Company will continue as a going concern and do not include any adjustments that might result from the outcome of this uncertainty. This basis of accounting contemplates the recovery of the Company’s assets and the satisfaction of liabilities in the normal course of business.

On April 23, 2014, the Company entered into an asset purchase agreement (Asset Purchase Agreement) with Endo Ventures Bermuda Limited (Endo Ventures Bermuda) and Endo Ventures Limited (Endo Ventures and, together with Endo Ventures Bermuda, the Buyers), pursuant to which, and on the terms and subject to the conditions thereof, among other things, the Company agreed to sell its Sumavel DosePro product line to the Buyers, including the registered trademarks, certain contracts, the New Drug Application (NDA) and other regulatory approvals, the books and records, marketing materials and product data relating to Sumavel DosePro. Under the terms of the Asset Purchase Agreement, the Buyers will pay the Company $85,000,000 in cash upon closing (Closing) of the transaction, $8,500,000 of which will be deposited into escrow to fund potential indemnification claims for a period of 12 months. In addition to the upfront cash payment, the Company is eligible to receive additional cash payments of up to $20,000,000 based on the achievement of pre-determined sales and manufacturing milestones. Furthermore, Endo Ventures will assume responsibility for the Company’s royalty obligation to Aradigm Corporation on sales of Sumavel DosePro and assume other liabilities relating to Sumavel DosePro after the Closing. The Company expects the Closing to occur during the second quarter of 2014, subject to the satisfaction of the closing conditions (see Note 7), but there can be no assurance that the Closing will occur on that time frame, or at all.

Management expects operating losses and negative cash flows to continue for at least the next year as the Company continues to incur costs related to the continued development of its product candidates, including an abuse deterrent formulation of Zohydro ER, and commercialization of its approved products. In addition to the Asset Purchase Agreement, management may pursue additional opportunities to raise further capital, if required, through public or private equity offerings, including through debt financings, receivables financings or through collaborations or partnerships with other companies to further support its planned operations. There can be no assurance that the Closing under the Asset Purchase Agreement will occur or that the Company will be able to obtain any source of financing on acceptable terms, or at all. If the Company is unsuccessful in raising additional required funds, it may be required to significantly delay, reduce the scope of or eliminate one or more of its development programs or its commercialization efforts, or cease operating as a going concern. The Company also may be required to relinquish, license or otherwise dispose of rights to product candidates or products that it would otherwise seek to develop or commercialize itself on terms that are less favorable than might otherwise be available.