Peter Powchik, M.D., has been Senior Vice President, Clinical Development since October 2006. Prior to joining the Company, Dr. Powchik served as Senior Vice President and Chief Medical Officer at Chugai Pharma USA, a position he held from May 2005 until October 2006. From April 2001 until May 2005, he held various senior clinical development positions at Novartis Pharmaceuticals Corporation, most recently as Vice President, US Clinical Development and Medical Affairs. Dr. Powchik held various clinical development positions with Sepracor Inc. and Pfizer, Inc. from October 1996 to April 2001. Dr. Powchik received his M.D. from New York University School of Medicine.