Clinical Trials Ontario (CTO) is an independent not-for-profit organization established with support from the Government of Ontario. We work collaboratively with the clinical trials community, the public and strategic partners to improve Ontario’s clinical trials environment and attract clinical trial investment to the province. The vision of CTO is to make Ontario a preferred location for global clinical trials, while maintaining the highest ethical standards for participant protection.

The benefits of clinical trials are indisputable. Clinical trials assess the safety and effectiveness of new treatments and approaches. Successful trials lead to new drugs, devices and other interventions that can save lives, enhance our quality of life and reduce healthcare costs. Clinical trials also create high-quality jobs and attract top clinicians and scientists.


Working closely with Ontario’s clinical research community, CTO has introduced a new ‘streamlined’ approach to conducting multi-centre clinical trials in Ontario. It’s welcome news for everyone involved in clinical trials. The CTO Streamlined Research Ethics Review System means, for example, that a trial with 10 participating sites no longer has to go through 10 separate research ethics board reviews for the same protocol. More than a dozen studies are already being reviewed or pending review through the system.


A stakeholder-led organization, CTO works with hospitals, universities, investigators, clinical trial service providers, research ethics boards, industry, government, innovation partners, participant/patient groups and others. We partner with organizations locally, provincially, nationally and in other provinces. CTO is based at the MaRS West Tower in Toronto, surrounded by examples of clinical trials excellence.


Toronto is a leading global centre for clinical trials. The city is known for world-class hospitals and research centres, outstanding investigators and innovation organizations. Toronto has well-established clinical trials networks, contract research organizations and a thriving private research community. With our centrally-managed public healthcare system and an ethnically diverse population, Toronto is a great place to do clinical trials. And now, there’s a unique and efficient research ethics review system that reduces the time and administrative burden involved in multi-centre trials in Ontario.


Toronto and Ontario have the expertise and capacity to take on more global clinical trials. CTO is working to increase awareness of the remarkable clinical research strengths that exist here. We are also committed to increasing public and participant engagement in clinical trials. Through these and other initiatives, CTO is helping to attract more clinical trials to Ontario―with all the benefits they bring.


President and CEO, Clinical Trials Ontario

Before joining Clinical Trials Ontario, Susan spent almost a decade in research administration at Queen’s University, most recently as Associate Vice-Principal, Research. A former President of the Canadian Association of Research Ethics Boards, she has worked with the National Cancer Institute of Canada Clinical Trials Group and served as a member of the Canadian Institutes of Health Research (CIHR) Research Integrity Committee, the Ontario Cancer Research Ethics Board, and the Tri-Agency Panel on the Responsible Conduct of Research.



Toronto has a rich HISTORY OF INNOVATION. It is where insulin was discovered. It was home to the first successful lung transplant. The first external pacemaker was developed here. And the list goes on.

Toronto and the surrounding area have the greatest CONCENTRATION OF CLINICAL TRIAL SITES in Ontario, followed by Ottawa, London, Hamilton and Kingston.

Ontario is a leading jurisdiction for conducting clinical trials in Canada. More than 3,600 CLINICAL TRIALS . are underway in Ontario at any given time.

Clinical Trials Ontario
MaRS Centre, West Tower
661 University Avenue, Suite 460
Toronto, Ontario M5G 1M1
T: (416) 673-6684


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