Francisco Leon, MD, PhD


Francisco Leon, MD, Ph.D. is the scientific co-founder of Provention Bio, Inc. An immunologist by training, Francisco Leon has more than two decades of academic research and biopharma industry experience, with an expertise in immune tolerance. Previously, Francisco Leon was the Chief Executive Officer and Chief Medical Officer of Celimmune, LLC, aclinical stage immunotherapy company dedicated to developing transformational therapies for celiac disease and other serious immune-mediated diseases. Prior to Celimmune, Francisco Leon served as Vice President and Head of Translational Medicine/Immunology at Johnson & Johnson’s Janssen Pharmaceuticals, where he led early-stage clinical development in immunology. Francisco Leon’s professional experience is also highlighted by positions of increasing responsibility at several life sciences companies, including Chief Medical Officer of Alba Therapeutics, Director of Clinical Development, Inflammation & Respiratory at Medimmune and Director of Clinical Discovery, Immunology & Oncology at Bristol-Myers Squibb.

Prior to entering the biopharma industry, Francisco Leon served as a Postdoctoral Fellow at the National Institutes for Allergy and Infectious Diseases (NIAID) of the National Institutes of Health (NIH). In 2011, he became an Associate Professor of Medicine at Jefferson Medical College in Philadelphia, where he continues to contribute to the clinical research efforts of the Department of Gastroenterology. Francisco Leon earned his MD and Ph.D. from Autónoma University in Madrid Spain and has authored or co-authored more than 80 peer-reviewed articles, book chapters and patents.