Rexahn Pharmaceuticals, Inc. (NYSE Amex: RNN), a clinical stage pharmaceutical company commercializing potential best in class oncology and CNS therapeutics, today announced that the United States Patent & Trademark Office has issued U.S. Patent No. 8,034,829 to Rexahn, entitled “5, 6, or 7-Substituted-3-(hetero) arylisoquinolinamine derivatives and therapeutic use thereof.”
This patent covers several new isoquinolinamine compounds and their pharmaceutical composition and method for producing an anti-tumor effect. The patent specifically covers Rexahn’s compound RX-8243, currently in pre-clinical development.
In a recently published study in
Bioorganic & Medicinal Chemistry Letters
:5277-5281, 2010], RX-8243 exhibited potent anti-tumor properties in several cancer cell lines, as well as in paclitaxel-resistant human colorectal xenograft models. RX-8243 also demonstrated a synergistic cytotoxic effect when combined with several known cancer drugs against human cancer cells.
Rick Soni, President of Rexahn, commented, “This new US patent for arylisoquinolinamine compounds is an important step in the development of RX-8243 and further strengthens our global intellectual property position around our oncology pipeline.”
About Rexahn Pharmaceuticals, Inc.
Rexahn Pharmaceuticals, Inc. is a clinical stage pharmaceutical company dedicated to developing and commercializing first in class and market leading therapeutics for cancer, CNS disorders, sexual dysfunction and other unmet medical needs. Rexahn currently has three drug candidates in Phase II clinical trials, Archexin®, Serdaxin®, and Zoraxel™ – all potential best in class therapeutics – and a robust pipeline of preclinical compounds to treat multiple cancers and CNS disorders. Rexahn also operates key R&D programs of nano-medicines, 3D-GOLD, and TIMES drug discovery platforms. For more information about Rexahn, please visit
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