Clinical trials
Phase 4 Postoperative Pain trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
345 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2003 | 3 |
| 2006 | 1 |
| 2007 | 7 |
| 2008 | 7 |
| 2009 | 6 |
| 2010 | 9 |
| 2011 | 7 |
| 2012 | 14 |
| 2013 | 16 |
| 2014 | 18 |
| 2015 | 15 |
| 2016 | 15 |
| 2017 | 17 |
| 2018 | 21 |
| 2019 | 34 |
| 2020 | 24 |
| 2021 | 28 |
| 2022 | 27 |
| 2023 | 14 |
| 2024 | 20 |
| 2025 | 18 |
| 2026 | 20 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 169 |
| Recruiting | 44 |
| Terminated | 38 |
| Withdrawn | 34 |
| Unknown status | 28 |
| Not yet recruiting | 13 |
| Active, not recruiting | 10 |
| Enrolling by invitation | 8 |
| Suspended | 1 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| University of California, San Diego | 22 |
| The University of Texas Health Science Center, Houston | 12 |
| Mayo Clinic | 10 |
| Duke University | 8 |
| The Cleveland Clinic | 7 |
| Columbia University | 5 |
| Endeavor Health | 5 |
| Northwestern University | 5 |
| Rothman Institute Orthopaedics | 5 |
| Stanford University | 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 |
|---|---|
| Postoperative Pain | 345 |
| Pain | 33 |
| Agnosia | 30 |
| Acute Pain | 10 |
| Osteoarthritis, Knee | 7 |
| Postoperative Nausea and Vomiting | 6 |
| Osteoarthritis | 5 |
| Pelvic Organ Prolapse | 5 |
| Breast Neoplasms | 4 |
| Obesity | 4 |
Trials
Showing 1 to 25 of 345. Each trial links to its page on Pharma Observatory.
245 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.