Stewart McCallum, M.D. has served as our Chief Medical Officer since December 2015. From 2006 to 2015, Dr. McCallum worked at GlaxoSmithKline plc (GSK), a research-based pharmaceutical and healthcare company. While at GSK he served in a range of roles in discovery and development and ultimately as Clinical Director of the Academic and Sirtuin, Discovery Performance Units. During his time at GSK, Dr. McCallum successfully led high profile drug development programs across a wide variety of therapeutic areas including urology, oncology, gastroenterology, dermatology, stem cell therapies, in vitro fertilization and women’s health. While at GSK he was responsible for the planning, design and execution of comprehensive development plans incorporating medical, regulatory and commercial considerations. From 1998 to 2006, Dr. McCallum served as an Assistant Professor of Urology at Stanford University Medical Center and the VA Palo Alto Health Care System. Dr. McCallum received his M.D. from the University of Toronto and his B.S. in Biochemistry from the University of Western Ontario. He completed his residency in Urology at the University of Toronto and a Clinical Fellowship in Microsurgery and Male Infertility at the Weill Cornell Medical College at New York–Presbyterian Hospital.  Dr. McCallum is a Certified Diplomat of the American Board of Urology; Fellow of the American College of Surgeons, and Fellow of the Royal College of Surgeons Canada.

Pharmaceutical Sciences