Dr Marshall received his training at Duke University, the University of Louisville, and Georgetown University. Dr Marshall is an internationally recognized expert in new drug development for GI cancer, with expertise in phase I, II, and III trial design, and has served as Principal Investigator for more than one hundred clinical trials throughout his career. While he has an interest in many areas of cancer research, his primary focus is on the use of precision medicine in treating cancer. Dr Marshall has become an outspoken advocate for GI cancer patients and the importance of clinical research participation.
