Clinical trials
Completed Phase 4 Pain trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
564 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2001 | 6 |
| 2002 | 8 |
| 2003 | 7 |
| 2004 | 17 |
| 2005 | 15 |
| 2006 | 25 |
| 2007 | 23 |
| 2008 | 34 |
| 2009 | 27 |
| 2010 | 35 |
| 2011 | 44 |
| 2012 | 35 |
| 2013 | 36 |
| 2014 | 50 |
| 2015 | 27 |
| 2016 | 31 |
| 2017 | 27 |
| 2018 | 21 |
| 2019 | 21 |
| 2020 | 10 |
| 2021 | 17 |
| 2022 | 9 |
| 2023 | 15 |
| 2024 | 9 |
| 2025 | 7 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 564 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Oregon Health and Science University | 10 |
| Antonios Likourezos | 9 |
| Duke University | 7 |
| Montefiore Medical Center | 7 |
| Northwestern University | 7 |
| Johnson & Johnson Consumer and Personal Products Worldwide | 6 |
| Novartis | 6 |
| University of California, San Diego | 6 |
| Federal University of São Paulo | 5 |
| Hospital for Special Surgery, New York | 5 |
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 | 564 |
| Agnosia | 60 |
| Postoperative Pain | 57 |
| Acute Pain | 18 |
| Osteoarthritis | 17 |
| Neoplasms | 13 |
| Osteoarthritis, Knee | 12 |
| Emergencies | 10 |
| Inflammation | 10 |
| Nausea | 9 |
Trials
Showing 1 to 25 of 564. Each trial links to its page on Pharma Observatory.
464 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.