Dr David Zhen is an associate professor of medicine at Fred Hutchinson Cancer Center and the University of Washington, and co-director of the neuroendocrine tumour programme. Dr Zhen’s research focuses on developing new therapies for gastroesophageal and neuroendocrine cancers through clinical trials and translational research to identify biomarkers predicting immunotherapy response. Dr Zhen serves on several national committees, including the National Comprehensive Cancer Network’s neuroendocrine and adrenal tumours guidelines panel, the National Cancer Institute’s (NCI’s) neuroendocrine tumour and gastroesophageal task forces and plays an active role in the SWOG and NCI cooperative group systems.