Rexahn Pharmaceuticals announces Phase IIb clinical trial of Zoraxel for ED

May 13 2010

Rexahn Pharmaceuticals, Inc. (NYSE Amex:RNN), a clinical stage pharmaceutical company commercializing potential best in class oncology and CNS therapeutics, today announced that it will initiate a Phase IIb clinical trial for Zoraxel^TM in the treatment of erectile dysfunction (ED).

The Phase IIb study is designed to assess Zoraxel's efficacy in approximately 225 male subjects, ages 18 to 65, with ED. The double blind, randomized, placebo-controlled, 12-week study will include the International Index of Erectile Function (IIEF), Sexual Encounter Profile (SEP) survey, and quality of life study endpoints. The Phase IIb study is expected to begin in the second half of 2010 and the preliminary data is expected to be available in 2011. The study will be conducted at multiple sites in the U.S.

Rexahn's decision to move forward with the Phase IIb trial is supported by data from a Phase IIa proof of concept study of 39 ED patients treated with Zoraxel. The Phase IIa study was completed in May 2009 and demonstrated that Zoraxel consistently improved IIEF scores of treated subjects. Furthermore, the study found that treated subjects demonstrated a dose dependent treatment effect with improved erectile function and quality of life measures. Zoraxel was also found to be safe and well tolerated, with no serious adverse events reported.

SOURCE Rexahn Pharmaceuticals, Inc.