Rexahn Pharmaceuticals Announce IND Submission for RX-3117

Rexahn Pharmaceuticals, Inc.

announced today that Teva Pharmaceutical Industries has submitted an Investigational New Drug (IND) application to the US Food and Drug Administration (FDA) for RX-3117, a novel oral small molecule chemotherapy agent, under a June 2009 Research and Exclusive License Option Agreement with Teva Pharmaceutical Industries Ltd. for RX-3117. Prof. Dr. Godefridus J. (Frits) Peters, Head Laboratory Medical Oncology, VU University Medical Center, Amsterdam, The Netherlands, commented, “RX-3117 has a novel and unique mechanism of action and a distinctly different metabolism compared to other nucleoside analogs. RX-3117's strong anti-proliferative activity against a wide variety of human cancer cell lines offers promise for its future therapeutic development and the potential of helping cancer patients.” In August 2012, Rexahn reported the completion of an exploratory Phase I clinical trial of RX-3117 in cancer patients conducted in Europe. The clinical trial demonstrated that RX-3117 is orally bioavailable and no adverse events were reported over the dose range tested. A further Phase I clinical trial in cancer patients is expected to be initiated in the second half of 2013. Peter D. Suzdak, Ph.D., Rexahn's Chief Executive Officer commented, “The IND filing represents an important milestone in the RX-3117 clinical development program. RX-3117, which has already demonstrated oral bioavailability in cancer patients, has the potential to treat a wide variety of solid tumors. Rexahn looks forward to advancing the clinical development of RX-3117.” About RX-3117 RX-3117 is a novel small molecule anti-metabolite compound that inhibits DNA and RNA synthesis and induces apoptotic cell death of tumor cells. Preclinical studies have shown RX-3117 to be effective in both inhibiting the growth of various human cancer xenograft models (including colon, lung, renal and pancreatic) and overcoming chemotherapeutic drug resistance. About Rexahn Pharmaceuticals, Inc. Rexahn Pharmaceuticals is a clinical stage biopharmaceutical company dedicated to developing best-in-class therapeutics for the treatment of cancer. Rexahn currently has three clinical stage oncology candidates, Archexin®, RX-3117, and RX-5902 and a robust pipeline of preclinical compounds to treat multiple types of cancer. Rexahn has also developed proprietary drug discovery platform technologies in the areas of nano-medicines, 3D-GOLD, and TIMES. For more information, please visit www.rexahn.com.