Shannon R. Morris, M.D., Ph.D. has served as our Chief Medical Officer since April 2023. Dr. Morris joined Erasca in May 2022 as Senior Vice President, Clinical Development. Dr. Morris brings over 20 years of experience in the life sciences industry with a focus in oncology. Prior to joining Erasca, from September 2020 to March 2022, Dr. Morris was Vice President, Head of Clinical Development, and a member of the Executive Committee at Istari Oncology, Inc. Prior to Istari Oncology, from April 2017 to September 2020, Dr. Morris was Vice President of Clinical Development at G1 Therapeutics, Inc., where she led the development of Cosela, achieving breakthrough therapy designation as well as a successful new drug application submission. Prior to G1 Therapeutics, from October 2014 to March 2017, Dr. Morris was a Senior Director at MedImmune, the global biologics research and development arm of AstraZeneca PLC, where she supported the successful biologics license application for Imfinzi and led the development of multiple early phase immuno-oncology assets. Prior to MedImmune, Dr. Morris held roles of increasing responsibility at GSK plc (formerly known as GlaxoSmithKline plc), where her efforts focused on the early phase development of small molecule inhibitors of AKT, PI3K, and MEK, including the approved MEK inhibitor Mekinist. During her time at GSK and MedImmune, Dr. Morris maintained an adjunct appointment at the University of North Carolina where her practice focused on the clinical care of patients with breast and gastrointestinal cancers. Dr. Morris completed her internal medicine residency and oncology fellowship at the University of North Carolina, earned an M.D. and Ph.D. in molecular virology from Case Western Reserve University, and received a B.S. in biological sciences from Stanford University.