Dr. Sandison has been with Elion since June 2025. He has over two decades of experience in anti-infective clinical trials and drug development in both academia and industry. Prior to joining the company, he worked at Cidara Therapeutics for ten years where he served as Chief Medical Officer for the final eight years. Before Cidara, Dr. Sandison was a senior medical director at Merck and prior to that held the same position at Cubist Pharmaceuticals, Inc. He has also held positions at Trius Therapeutics and Novartis Diagnostics, and served as a member of the faculty in the Department of Medicine at both Stanford University and the University of Washington. He received B.S. and B.A. degrees from Dartmouth College, M.D. and M.P.H. degrees from the University of Washington, and a Diploma in Tropical Medicine and Hygiene (DTM&H) from the London School of Hygiene and Tropical Medicine. He completed internal medicine residency training at the University of Colorado and infectious diseases fellowship training at the University of Washington. Dr. Sandison currently holds board certifications in Infectious Diseases and Internal Medicine.