Lillian

 

Siu

Dr. Siu is a senior medical oncologist at Princess Margaret Cancer Centre, and is a Professor of Medicine at the University of Toronto. She is the co-Director of the Phase I Trials Program, co-leads the Tumor Immunotherapy Program and holds the BMO Chair in Precision Genomics.  Dr. Siu had served on the Board of Directors of both the American Society of Clinical Oncology (ASCO) and the American Association for Cancer Research (AACR). She is a fellow of ASCO, AACR and the Canadian Academy of Health Sciences (CAHS). Dr. Siu was the 2025-2026 President of the AACR.  

Dr. Siu’s major research focus is in the area of new anticancer drug development, with respect to phase I trials and head and neck malignancies. Her translational research focus is in the area of liquid biopsies, predictive biomarkers and precision medicine.  Internationally, Dr. Siu was the recipient of the US National Cancer Institute’s Michaele C. Christian Award in 2010, ESMO TAT Honorary Award in 2020, Canadian Cancer Trials Group’s Maria Ricci Memorial Lectureship in 2023, and ASCO’s highest honor - David A. Karnofsky Memorial Award in 2024. Dr. Siu received the 2024 Lifetime Achievement Award from the Chinese American Hematologist and Oncologist Network (CAHON).  For her mentorship of early career investigators, Dr. Siu received the International Women Who Conquer Cancer Mentorship Award from ASCO in 2020. Dr. Siu has published nearly 400 peer-reviewed manuscripts, and she is the co-Editor-in-Chief for AACR’s Cancer Research Communications, and is on the editorial board for Cell and Cancer Cell.