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www.fdanews.com/articles/82784-predix-obtains-spa-for-prx-00023-study

PREDIX OBTAINS SPA FOR PRX-00023 STUDY

November 30, 2005

Predix Pharmaceuticals announced that under the special protocol assessment (SPA) process, it has reached final agreement with the FDA on the design and statistical analysis plan of a Phase III study for PRX-00023, its 5-HT1A agonist and lead product candidate, to treat generalized anxiety disorder (GAD).

The trial will be an eight-week, double-blind, placebo-controlled, multicenter study. It includes approximately 20 sites in the U.S. and is expected to enroll up to 310 patients with moderate-to-severe GAD who will be randomized into one of two arms, consisting of approximately 155 patients each: a placebo arm, or a PRX-00023 treatment arm, in which patients receive a dose of 40 mg administered over a three-day period followed by a dose of 80 mg once daily for the remainder of the study. The primary objectives in this trial are to evaluate the efficacy of PRX-00023 in GAD as measured by the change from baseline, and to assess the safety and tolerability of PRX-00023 during treatment of patients with GAD.