Clinical trials
Withdrawn Phase 4 Pain trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
37 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2008 | 2 |
| 2009 | 1 |
| 2010 | 2 |
| 2011 | 2 |
| 2012 | 4 |
| 2013 | 2 |
| 2014 | 3 |
| 2015 | 3 |
| 2016 | 3 |
| 2017 | 4 |
| 2019 | 3 |
| 2020 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 3 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Withdrawn | 37 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Duke University | 3 |
| Antonios Likourezos | 2 |
| Johns Hopkins University | 2 |
| Albany Medical College | 1 |
| ArthroCare Corporation | 1 |
| Baylor College of Medicine | 1 |
| Boston Children's Hospital | 1 |
| Centre Hospitalier Universitaire de Nīmes | 1 |
| Fondazione IRCCS Policlinico San Matteo di Pavia | 1 |
| Henry Ford Health System | 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 |
|---|---|
| Pain | 37 |
| Agnosia | 7 |
| Postoperative Pain | 4 |
| Anxiety Disorders | 2 |
| Fibromyalgia | 2 |
| Acute Pain | 1 |
| Apnea | 1 |
| Arthritis, Rheumatoid | 1 |
| Bronchiolitis Obliterans Syndrome | 1 |
| Chronic Pain | 1 |
Trials
Showing 1 to 25 of 37. 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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