Dr. Ratcliffe is a Managing Director at New Leaf Venture Partners, where he concentrates on biopharmaceutical investing. He joined New Leaf in September 2008. Dr. Ratcliffe previously served as Senior Vice President and Development Head for Pfizer Neuroscience, as well as Worldwide Head of Clinical Research and Development. Additional positions during his 12 years at Pfizer included Vice President of Exploratory Development for the Midwest region (based in Ann Arbor, Mich.) and Head of Experimental Medicine at Pfizer’s Sandwich, UK Laboratories.
Dr. Ratcliffe received his M.D. and Ph.D. in Immunology from the University of Cape Town and his M.B.A. from the University of Michigan. He completed his internal medicine training and fellowship in Immunology at Groote Schuur Hospital and associated teaching hospitals in Cape Town, South Africa.