Clinical trials
Withdrawn Phase 4 trials in Canada
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
55 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2007 | 1 |
| 2008 | 4 |
| 2009 | 5 |
| 2010 | 2 |
| 2011 | 5 |
| 2012 | 4 |
| 2013 | 7 |
| 2014 | 6 |
| 2015 | 2 |
| 2016 | 3 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 4 |
| 2020 | 1 |
| 2021 | 4 |
| 2023 | 1 |
| 2026 | 1 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Withdrawn | 55 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| University of British Columbia | 6 |
| University of Alberta | 5 |
| London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's | 4 |
| Nova Scotia Health Authority | 4 |
| Ottawa Hospital Research Institute | 3 |
| Centre hospitalier de l'Université de Montréal (CHUM) | 2 |
| McGill University Health Centre/Research Institute of the McGill University Health Centre | 2 |
| McMaster University | 2 |
| Ross Leighton | 2 |
| St. Paul's Hospital, Canada | 2 |
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 |
|---|---|
| Agnosia | 2 |
| Asthma | 2 |
| COVID-19 | 2 |
| Glaucoma | 2 |
| Hepatitis B | 2 |
| Psychotic Disorders | 2 |
| Acne Vulgaris | 1 |
| Acquired Immunodeficiency Syndrome | 1 |
| Acute Kidney Injury | 1 |
| Acute Pain | 1 |
Trials
Showing 1 to 25 of 55. Each trial links to its page on Pharma Observatory.
Recently changed trials
Changes observed in the last 7 days, newest first, site-count changes left out. Source: ClinicalTrials.gov.
No changes to these trials in the last 7 days.
Go deeper on Pharma Observatory
Pharma Observatory connects clinical trials, sponsors, sites and investigators in one searchable platform.