Clinical trials
Terminated Phase 4 Pain trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
98 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 1 |
| 2003 | 1 |
| 2004 | 1 |
| 2005 | 3 |
| 2006 | 5 |
| 2007 | 6 |
| 2008 | 7 |
| 2009 | 9 |
| 2010 | 6 |
| 2011 | 8 |
| 2012 | 5 |
| 2013 | 6 |
| 2014 | 5 |
| 2015 | 5 |
| 2016 | 5 |
| 2017 | 5 |
| 2018 | 2 |
| 2019 | 5 |
| 2020 | 3 |
| 2021 | 6 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 1 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Terminated | 98 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| University of California, San Diego | 5 |
| Northwestern University | 4 |
| Antonios Likourezos | 3 |
| Pfizer's Upjohn has merged with Mylan to form Viatris Inc. | 3 |
| Boston Scientific Corporation | 2 |
| Children's Hospital of Eastern Ontario | 2 |
| Columbia University | 2 |
| Duke University | 2 |
| Massachusetts General Hospital | 2 |
| NHS Tayside | 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 |
|---|---|
| Pain | 98 |
| Agnosia | 15 |
| Postoperative Pain | 9 |
| Back Pain | 4 |
| Chronic Pain | 3 |
| Low Back Pain | 3 |
| Constipation | 2 |
| Emergencies | 2 |
| Fatigue | 2 |
| Labor Pain | 2 |
Trials
Showing 1 to 25 of 98. 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
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