An internationally recognized expert in the development of novel cancer therapeutics. Dr. Siu is a senior medical oncologist at the Princess Margaret Cancer Centre and a Professor of Medicine at the University of Toronto. She is the Director of the Phase I Program and Co-Director of the Bras and Family Drug Development Program at the Princess Margaret Cancer Centre, and holds the BMO Chair in Precision Genomics. Dr. Siu served on the Board of Directors for the American Society of Clinical Oncology (ASCO) and the American Association for Cancer Research (AACR). Internationally, Dr. Siu was the recipient of the US NCI Michaele C. Christian Award in Oncology Drug Development in 2010. She was awarded the TAT 2020 Honorary Award for contributions in the development of anticancer drugs. In 2023, Dr. Siu is currently the co-Editor-in-Chief for AACR’s newest journal Cancer Research Communications and is on the editorial board for Cell and Cancer Cell.