Clinical trials
Withdrawn trials in Canada
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
633 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 | 8 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Withdrawn | 633 |
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 |
| Carcinoma, Non-Small-Cell Lung | 10 |
| Chronic Pain | 10 |
| Heart Failure | 10 |
| Obesity | 10 |
Trials
Showing 76 to 100 of 633. Each trial links to its page on Pharma Observatory.
533 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.