Achillion Pharmaceuticals, Inc. announced the appointment of Frank Verwiel, M.D., former President and Chief Executive Officer of Aptalis Pharma, to Achillion's Board of Directors. With more than 25 years of experience in the pharmaceutical industry, Dr. Verwiel was most recently President, Chief Executive Officer and board member of Aptalis Pharma. As President and Chief Executive Officer, Dr. Verwiel defined and implemented a strategy to achieve Aptalis' vision to become the reference GI specialty pharma company.