Diane C. Young, M.D., has been appointed senior vice president, chief medical officer, Celldex Therapeutics, Inc., effective July 8, 2019. Dr. Young, a medical oncologist, has 30 years of experience leading clinical and cross-functional research and development teams responsible for the global development of numerous therapies from Phase I through product registrations.  Dr. Young most recently served as the chief medical officer of GTx, Inc., a public biopharmaceutical company focused on dev...