Clinical trials
Withdrawn trials in Canada
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
632 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2002 | 2 |
| 2003 | 2 |
| 2004 | 4 |
| 2005 | 4 |
| 2006 | 10 |
| 2007 | 19 |
| 2008 | 13 |
| 2009 | 24 |
| 2010 | 26 |
| 2011 | 26 |
| 2012 | 33 |
| 2013 | 31 |
| 2014 | 38 |
| 2015 | 33 |
| 2016 | 40 |
| 2017 | 29 |
| 2018 | 33 |
| 2019 | 36 |
| 2020 | 46 |
| 2021 | 44 |
| 2022 | 30 |
| 2023 | 35 |
| 2024 | 16 |
| 2025 | 16 |
| 2026 | 7 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Withdrawn | 632 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| University of Alberta | 45 |
| University of British Columbia | 43 |
| London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's | 33 |
| University Health Network, Toronto | 27 |
| McMaster University | 26 |
| Ottawa Hospital Research Institute | 18 |
| Nova Scotia Health Authority | 16 |
| Centre hospitalier de l'Université de Montréal (CHUM) | 15 |
| The Hospital for Sick Children | 15 |
| University of Calgary | 13 |
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 |
|---|---|
| Neoplasms | 14 |
| Pain | 13 |
| Prostatic Neoplasms | 12 |
| Anxiety Disorders | 11 |
| Diabetes Mellitus | 11 |
| Breast Neoplasms | 10 |
| Chronic Pain | 10 |
| Heart Failure | 10 |
| Obesity | 10 |
| Osteoarthritis | 10 |
Trials
Showing 1 to 25 of 632. Each trial links to its page on Pharma Observatory.
532 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
Pharma Observatory connects clinical trials, sponsors, sites and investigators in one searchable platform.