David Fajgenbaum is an assistant professor of medicine at the University of Pennsylvania and the associate director for the Orphan Disease Center. He is also cofounder and executive director of the Castleman Disease Collaborative Network and the cofounder of the National Students of Ailing Mothers and Fathers Support Network. He has received numerous awards including the Forbes “30 Under 30” for healthcare and the RARE Champion of Hope Award for science. His memoir is titled Chasing My Cure: A Doctor’s Race to Turn Hope into Action.