Jeffrey Humphrey, M.D.

Jeffrey Humphrey, M.D. 

Chief Medical Officer

As Chief Medical Officer, Dr. Humphrey serves as a member of Magenta’s Executive Team and is responsible for all clinical development and regulatory initiatives.

Dr. Humphrey is a medical oncologist with more than 20 years’ experience in drug development and has been involved with the development of more than 20 drug candidates, including regulatory submissions leading to multiple drug approvals in the United States and Europe.

Dr. Humphrey joins Magenta from Constellation Pharmaceuticals where he was Chief Medical Officer, leading medical affairs, clinical pharmacology, clinical operations and data management, among other responsibilities. Previously, he served as Executive Vice President and Chief Development Officer of Kyowa Kirin USA Holdings, Inc. and as President and Chief Medical Officer of Kyowa Kirin Pharmaceutical Development, Inc. Dr. Humphrey has also held senior leadership roles at Bristol-Myers Squibb; Bayer; and Pfizer. His extensive experience includes leading, managing, and directly contributing to all clinical development activities from IND submission, development strategy, and clinical trial execution to submissions, reviews, approvals and launch support.

Dr. Humphrey earned an MD from Case Western Reserve University School of Medicine, completing his residency in internal medicine at The Johns Hopkins Hospital, in addition to fellowships in human medical genetics and medical oncology, at the National Institutes of Health and the National Cancer Institute, respectively.