RESEARCH TRIANGLE PARK, NC--(Marketwire - May 06, 2008) - Tranzyme Pharma today announced that Dr. Philippa Charlton has joined the Company as Medical Director, Clinical Development, a newly created position. In this new position, Dr. Charlton will play a pivotal role in the planning and execution of advanced clinical programs for the company’s lead compounds, TZP-101 and TZP-102.