NEW HAVEN, Conn., June 6, 2012 (GLOBE NEWSWIRE) -- Achillion Pharmaceuticals, Inc. (Nasdaq:ACHN) today announced the resignation of Elizabeth A. Olek, D.O., Senior Vice President of Clinical Development and Chief Medical Officer, effective June 18, 2012. Milind Deshpande, Ph.D., President of Research and Development and Chief Scientific Officer, will assume responsibility for the oversight of ongoing and planned clinical trials evaluating Achillion’s portfolio of compounds for the treatment of hepatitis C (HCV).