https://orcid.org/0000-0002-7790-373XDr. Sun is the Lead Principal Investigator of RTOG/NRG Oncology at the Princess Margaret Cancer Centre. His lung cancer research interests include the incorporation of metabolic imaging in the management of lung cancer patients. He is the Principal Investigator of the Canadian PET-BOOST trial, a prospective randomized trial incorporating the addition of FDG-PET imaging to boost the radiation dose in locally advanced non-small cell lung cancer (LA-NSCLC). He is also leading another prospective study with FAZA-PET imaging in LA-NSCLC, examining the addition of FAZA, a hypoxia PET tracer. Dr. Sun's research interests also include the addition and combination of immunotherapy and radiotherapy. He is currently leading a prospective study of immunotherapy combined with thoracic radiotherapy in patients with advanced NSCLC. He is interested in the role of Prophylactic Cranial Irradiation (PCI) in NSCLC and SCLC and has lead multiple international clinical trials. Dr. Sun has published over 100 articles in journals such as Lancet Oncology, JAMA Oncology, Journal of Clinical Oncology and the Journal of Thoracic Oncology.