Clinical trials
Withdrawn Pain trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
240 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 1 |
| 2003 | 1 |
| 2005 | 1 |
| 2006 | 9 |
| 2007 | 4 |
| 2008 | 12 |
| 2009 | 11 |
| 2010 | 8 |
| 2011 | 11 |
| 2012 | 17 |
| 2013 | 7 |
| 2014 | 19 |
| 2015 | 12 |
| 2016 | 11 |
| 2017 | 13 |
| 2018 | 11 |
| 2019 | 11 |
| 2020 | 11 |
| 2021 | 17 |
| 2022 | 11 |
| 2023 | 12 |
| 2024 | 8 |
| 2025 | 4 |
| 2026 | 8 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Withdrawn | 240 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Northwestern University | 7 |
| Stanford University | 7 |
| Baylor College of Medicine | 5 |
| Johns Hopkins University | 5 |
| Massachusetts General Hospital | 5 |
| Brigham and Women's Hospital | 4 |
| University of Utah | 4 |
| Air Force Military Medical University, China | 3 |
| Antonios Likourezos | 3 |
| Duke University | 3 |
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 | 240 |
| Agnosia | 23 |
| Anxiety Disorders | 17 |
| Chronic Pain | 14 |
| Neoplasms | 13 |
| Acute Pain | 8 |
| Wounds and Injuries | 7 |
| Cancer Pain | 6 |
| Osteoarthritis | 6 |
| Postoperative Pain | 6 |
Trials
Showing 76 to 100 of 240. Each trial links to its page on Pharma Observatory.
140 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.
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.