LEXINGTON, Mass.--(BUSINESS WIRE)--EPIX Pharmaceuticals, Inc. (NASDAQ:EPIX), a biopharmaceutical company focused on discovering and developing novel therapeutics through the use of its proprietary and highly efficient in silico drug discovery platform, today announced revised results from its Phase 2a clinical trial of PRX-03140, its novel 5-HT4 agonist, in Alzheimer’s disease. The trial was designed to assess the effects of PRX-03140 following two weeks of treatment as monotherapy and separately in combination with donepezil (Aricept®) in patients with mild Alzheimer’s disease and the company announced initial findings on December 18, 2007. The updated results described below reflect the correction of previously undetected errors that were included in the trial results as provided to the company from a third party contract research organization (CRO) and as reported by the company in a recent press release, as well as newly available data on other measures of cognition.