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TheStreet Open House

Progenics Pharmaceuticals Initiates Phase 2 Clinical Trial Of PSMA ADC In Prostate Cancer Patients

Phase 1 clinical trial data will be presented at the EORTC-NCI-AACR Symposium on Molecular Targets and Cancer Therapeutics to be held November 6-9 in Dublin, Ireland. Progenics previously presented positive preliminary phase 1 data at the annual meeting of the American Society of Clinical Oncology (ASCO). Robust antitumor activity was observed across a range of doses, and durable responses were seen in heavily pre-treated patients. Doses up to and including 2.5 mg/kg were generally well tolerated. Dose limiting toxicities, primarily neutropenia, were seen at 2.8 mg/kg.

About Prostate Cancer

Prostate cancer is the second most common form of cancer affecting men in the United States, and an estimated one out of every six men in America will be diagnosed with prostate cancer in his lifetime. The American Cancer Society estimates that in 2012, more than 241,000 new cases of prostate cancer will be diagnosed. More than 28,000 men are anticipated to lose their lives to the disease this year.

About Progenics

Progenics Pharmaceuticals, Inc., of Tarrytown, N.Y., is a biopharmaceutical company dedicated to developing innovative medicines to treat disease, with a focus on cancer and related conditions. Progenics' pipeline candidates include PSMA ADC, a human monoclonal antibody-drug conjugate in phase 2 testing for treatment of prostate cancer, and preclinical stage novel phosphoinositide 3-kinase (PI3K) inhibitors for the treatment of cancer. Progenics has exclusively licensed development and commercialization rights for its opioid-induced constipation drug, Relistor ®, to Salix Pharmaceuticals, Ltd. for markets worldwide other than Japan, where Ono Pharmaceutical Co., Ltd. holds an exclusive license for the subcutaneous formulation. Relistor (methylnaltrexone bromide) subcutaneous injection is a first-in-class treatment for opioid-induced constipation approved in more than 50 countries for patients with advanced illness. For more information, please visit www.progenics.com and www.relistor.com .

The Progenics Pharmaceuticals Inc. logo is available at http://www.globenewswire.com/newsroom/prs/?pkgid=9678

This announcement may contain projections and other forward-looking statements regarding future events. Such statements are predictions only, and are subject to risks and uncertainties that could cause actual events or results to differ materially. These risks and uncertainties include, among others, the cost, timing and results of clinical trials and other development activities; the unpredictability of the duration and results of regulatory review of New Drug Applications and Investigational NDAs; market acceptance for approved products; generic and other competition; the possible impairment of, inability to obtain and costs of obtaining intellectual property rights; and possible safety or efficacy concerns, general business, financial and accounting matters, litigation and other risks. More information concerning Progenics and risks and uncertainties it faces is available on its website, and in its public announcements and reports it files with the U.S. Securities and Exchange Commission. Progenics is providing the information in this announcement as of its date and does not undertake any obligation to update or revise it, whether as a result of new information, future events or circumstances or otherwise.

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