Clinical trials
Observational trials in Canada
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
4,554 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 9 |
| 2001 | 12 |
| 2002 | 34 |
| 2003 | 40 |
| 2004 | 64 |
| 2005 | 94 |
| 2006 | 99 |
| 2007 | 123 |
| 2008 | 143 |
| 2009 | 141 |
| 2010 | 160 |
| 2011 | 212 |
| 2012 | 223 |
| 2013 | 198 |
| 2014 | 219 |
| 2015 | 203 |
| 2016 | 212 |
| 2017 | 239 |
| 2018 | 251 |
| 2019 | 267 |
| 2020 | 265 |
| 2021 | 266 |
| 2022 | 255 |
| 2023 | 254 |
| 2024 | 231 |
| 2025 | 170 |
| 2026 | 121 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 2,433 |
| Unknown status | 688 |
| Recruiting | 674 |
| Active, not recruiting | 273 |
| Terminated | 238 |
| Withdrawn | 92 |
| Not yet recruiting | 87 |
| Enrolling by invitation | 50 |
| Suspended | 19 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| University Health Network, Toronto | 307 |
| University of British Columbia | 249 |
| London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's | 131 |
| University of Alberta | 116 |
| Ottawa Hospital Research Institute | 110 |
| The Hospital for Sick Children | 110 |
| McMaster University | 99 |
| Sunnybrook Health Sciences Centre | 96 |
| McGill University Health Centre/Research Institute of the McGill University Health Centre | 85 |
| University of Calgary | 85 |
Top conditions
MeSH conditions the trials were registered with, not their broader categories. A condition with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Breast Neoplasms | 104 |
| Neoplasms | 96 |
| Diabetes Mellitus | 92 |
| Cardiovascular Diseases | 91 |
| Obesity | 90 |
| Heart Failure | 88 |
| COVID-19 | 83 |
| Diabetes Mellitus, Type 2 | 80 |
| Prostatic Neoplasms | 69 |
| Stroke | 65 |
Trials
Showing 1 to 25 of 4,554. Each trial links to its page on Pharma Observatory.
4,454 more trials match. See them on Pharma Observatory
Recently changed trials
Changes observed in the last 7 days, newest first, site-count changes left out. Source: ClinicalTrials.gov.
Go deeper on Pharma Observatory
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