Clinical trials
Withdrawn Phase 1 trials in Canada
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
47 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2004 | 1 |
| 2005 | 2 |
| 2007 | 2 |
| 2008 | 1 |
| 2009 | 2 |
| 2012 | 3 |
| 2013 | 2 |
| 2014 | 1 |
| 2016 | 5 |
| 2017 | 4 |
| 2019 | 3 |
| 2020 | 5 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 1 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Withdrawn | 47 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| University of Alberta | 5 |
| London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's | 4 |
| Sunnybrook Health Sciences Centre | 2 |
| University Health Network, Toronto | 2 |
| University of British Columbia | 2 |
| University of Calgary | 2 |
| University of Saskatchewan | 2 |
| AHS Cancer Control Alberta | 1 |
| Allergy Therapeutics | 1 |
| British Columbia Cancer Agency | 1 |
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 | 2 |
| Neuroblastoma | 2 |
| Prostatic Neoplasms | 2 |
| Anorexia | 1 |
| Anorexia Nervosa | 1 |
| Aortic Valve Stenosis | 1 |
| Brain Diseases | 1 |
| COVID-19 | 1 |
| Carcinoma, Squamous Cell | 1 |
| Central Nervous System Neoplasms | 1 |
Trials
Showing 1 to 25 of 47. 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.