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Interim Financial Statements
9 Months Ended
Sep. 30, 2013
Interim Financial Statements [Abstract]  
Interim Financial Statements
1.Interim Financial Statements

Progenics Pharmaceuticals, Inc. develops innovative medicines for oncology. A significant part of our research and development efforts centers on prostate specific membrane antigen (PSMA), a protein found at high levels on the surface of prostate cancer cells and also on the neovasculature of a number of other types of solid tumors. We are conducting phase 2 clinical trials of two product candidates for prostate cancer targeted toward PSMA: our therapeutic candidate, PSMA ADC, a fully human monoclonal antibody-drug conjugate (ADC), and MIP-1404, an imaging agent candidate in development by our Molecular Insight Pharmaceuticals (MIP) subsidiary. Among other assets in our pipeline of targeted radiotherapy and molecular imaging compounds are a group of small molecule therapeutics, MIP-1095, -1555 and -1558, in preclinical study for metastatic prostate cancer and other PSMA-expressing cancers, and Azedra™, an ultra-orphan radiotherapy candidate in a pivotal phase 2 clinical trial for pheochromocytoma.

Progenics has developed internally and acquired from research institutions, pharmaceutical and biotechnology companies certain compounds and technologies which we are advancing with other parties, including our first commercial drug, Relistor® (methylnaltrexone bromide) subcutaneous injection for the treatment of opioid induced constipation (OIC), which we have licensed to Salix Pharmaceuticals, Inc. worldwide other than Japan, where we have licensed the subcutaneous formulation of the drug to Ono Pharmaceutical Co., Ltd. We have suspended investment in our proprietary phosphoinositide 3-kinase (PI3K) inhibitor research and are evaluating alternative paths forward for this program. We continue to consider opportunities for strategic collaborations, out-licenses and other arrangements with biopharmaceutical companies involving our proprietary research, development and clinical programs, and may in the future also in-license or acquire additional oncology compounds and/or programs.

Our current principal sources of revenue from operations are upfront, commercialization milestones, royalty and revenue-sharing payments from Salix's Relistor operations. Royalty and milestone payments from Relistor depend on success in development and commercialization, which is dependent on many factors, such as the actions of Salix and Ono, decisions by the FDA and other regulatory bodies, the outcome of clinical and other testing of Relistor, and, to the extent requested by our collaboration partners, our own efforts. We and Salix have sought to expand the availability of subcutaneous Relistor to patients taking opioids for non-cancer pain and who suffer from OIC as a result, and to develop an oral formulation of methylnaltrexone for use by such patients. Salix and Progenics have continued to work together with the FDA to generate a reasonable path forward for the further development and regulatory review of Relistor in light of the FDA's complete response action taken in July 2012 regarding Salix's Relistor sNDA for chronic pain, in which the FDA requested additional data. After an End-of-Review meeting in October 2012, the FDA's Division of Gastroenterology and Inborn Errors Products expressed a concern that there may be a risk associated with the chronic use of mu-opioid antagonists in patients who are taking opioids for chronic pain, and, in order to understand this potential risk, the Division communicated that a very large, well-controlled, chronic administration trial will have to be conducted to assess the safety of any mu-opioid antagonist prior to market approval for the treatment of patients with OIC who are taking opioids for chronic, non-cancer pain. Salix subsequently held discussions with the Division and expressed the view that the post-marketing, clinical and preclinical data currently available for Relistor adequately demonstrate an appropriate and expected safety profile sufficient to permit the approval of the current Relistor sNDA. In response to Salix's formal appeal of the FDA's complete response letter, the FDA has informed Salix and Progenics that it will seek input from an Advisory Committee, which is expected to convene on March 10-11, 2014. The FDA has also stated that it will take action under the appeal within 30 days after receiving input from the Committee. 

Progenics in October commenced an arbitration with Ono under the provisions of the parties' License Agreement, following a communication from Ono that it has determined to discontinue development of subcutaneous Relistor in Japan because of "commercial concerns" that Ono contends would permit it to cease development and terminate the Agreement. Under our Agreement with Ono, Ono may cease development of subcutaneous Relistor only if it terminates the License Agreement, which it may do unilaterally only if Progenics is in material default.  Progenics is not in default under the Agreement, and Ono has neither asserted that Progenics is, nor terminated the Agreement.

Progenics commenced principal operations in 1988, became publicly traded in 1997 and throughout has been engaged primarily in research and development efforts, establishing corporate collaborations and related activities. All of our operations are conducted at our facilities in Tarrytown, New York.

Relistor is a first-in-class therapy for OIC which we developed over the course of the last decade and since 2008 has been approved for sale in the United States and over 50 other countries worldwide, including countries in the European Union, Canada and Australia. Under our Agreement with Salix, we are eligible to receive (i) a development milestone of up to $40 million upon U.S. marketing approval for subcutaneous Relistor in non-cancer pain patients (the proposed indication addressed in the complete response action mentioned above), (ii) a development milestone of up to $50 million upon U.S. marketing approval of an oral formulation of Relistor, (iii) up to $200 million of commercialization milestone payments upon achievement of specified U.S. sales targets, (iv) royalties ranging from 15 to 19 percent of net sales by Salix and its affiliates, and (v) 60% of any upfront, milestone, reimbursement or other revenue (net of costs of goods sold, as defined, and territory-specific research and development expense reimbursement) Salix receives from sublicensees outside the U.S. In the event either marketing approval is subject to a Black Box Warning or Risk Evaluation and Mitigation Strategy (REMS), payment of a substantial portion of the development milestone amount would be deferred, and subject, to achievement of the first commercialization milestone (payable on annual U.S. sales first exceeding $100 million).

In the second quarter of this year, we completed an underwritten public offering of 8.5 million shares of common stock at a public offering price of $4.40 per share, resulting in net proceeds of approximately $34.8 million. Exercise of the underwriters' overallotment option on an additional 1.3 million shares in July 2013 resulted in additional net proceeds of approximately $5.2 million in the current third quarter.

Funding and Financial Matters. At September 30, 2013, we held $75.6 million in cash ($5.242 million) and cash equivalents (money market funds of $70.355 million), a $3.6 million decrease from the second quarter-end, and a $16.8 million increase from 2012 year-end. We expect that this amount will be sufficient to fund operations as currently anticipated beyond one year. We currently use cash on hand, royalty payments from Relistor and proceeds from two recent common stock offerings to fund our ongoing operations. We expect to continue to use cash on hand and future Relistor royalties and other revenues, including any future development and/or commercialization milestones, as well as payments we may receive for licenses or other transactions involving other proprietary assets and programs, to fund our operations in the future. If we do not realize sufficient royalty or other revenue from Relistor, or are unable to enter into favorable collaboration, license, asset sale, capital raising or other financing transactions, we will have to reduce, delay or eliminate spending on certain programs, and/or take other economic measures.