Darrell H.S. Tan

Faculty Member

Accepting Students

Dr. Tan is an Associate Professor in the Institute of Health Policy, Management and Evaluation and in the Department of Medicine at the University of Toronto.  He is an infectious diseases physician and Clinician-Scientist at St. Michael’s Hospital, where he leads the Options Collaboratory in HIV/STI Treatment and Prevention Science (www.optionslab.ca).  His research focuses on clinical trials and implementation science in the areas of HIV prevention and treatment, sexually transmitted infections (STIs), and mpox.   Dr. Tan holds a Tier 2 Canada Research Chair in HIV Prevention and STIs, is Co-Lead of the HIV Prevention Core of the CIHR Canadian HIV Trials Network (www.hivnet.ubc.ca), and is a member of the Governing Council of the International AIDS Society.

Among his other projects, he is currently leading a 5-year CIHR Implementation Science Team Grant on Optimizing PrEP delivery to gay, bisexual and other men who have sex with men; a CIHR-funded clinical trial of post-exposure prophylaxis for the prevention of COVID-19; and community-based cohort study of PrEP users in Ontario, funded by CIHR, the OHTN, REACH and CANFAR.  Dr. Tan has funding to support graduate students and welcomes applications from highly motivated students.

Professional Interests

Biomedical HIV prevention including pre- and post-exposure prophylaxis, management of HIV/AIDS, diagnosis and management of sexually transmitted infections, HIV co-infections, clinical trials, implementation science.

Other Affiliations

  • Scientist, Keenan Research Centre of the Li Ka Shing Knowledge Institute of St. Michael’s Hospital
  • Clinician-Scientist, Division of Infectious Diseases, St Michael’s Hospital
  • Associate Professor, Department of Medicine, University of Toronto
  • Prevention Core Co-Lead, CIHR Canadian HIV Trials Network
  • Governing Council Member, International AIDS Society