Clinical trials
Phase 4 Postoperative Pain trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
1,035 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2001 | 2 |
| 2002 | 2 |
| 2003 | 4 |
| 2004 | 4 |
| 2005 | 7 |
| 2006 | 9 |
| 2007 | 20 |
| 2008 | 29 |
| 2009 | 36 |
| 2010 | 32 |
| 2011 | 30 |
| 2012 | 39 |
| 2013 | 40 |
| 2014 | 54 |
| 2015 | 49 |
| 2016 | 49 |
| 2017 | 60 |
| 2018 | 59 |
| 2019 | 77 |
| 2020 | 56 |
| 2021 | 63 |
| 2022 | 74 |
| 2023 | 51 |
| 2024 | 59 |
| 2025 | 56 |
| 2026 | 65 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 589 |
| Unknown status | 166 |
| Recruiting | 78 |
| Terminated | 65 |
| Not yet recruiting | 55 |
| Withdrawn | 48 |
| Active, not recruiting | 21 |
| Enrolling by invitation | 11 |
| Suspended | 2 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| University of California, San Diego | 22 |
| Cairo University | 15 |
| Hvidovre University Hospital | 15 |
| Ain Shams University | 13 |
| Beijing Tiantan Hospital | 13 |
| Cukurova University | 13 |
| The University of Texas Health Science Center, Houston | 13 |
| Duke University | 11 |
| Mahidol University | 11 |
| Mayo Clinic | 10 |
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 | 1,035 |
| Agnosia | 97 |
| Pain | 95 |
| Postoperative Nausea and Vomiting | 38 |
| Acute Pain | 31 |
| Postoperative Complications | 19 |
| Chronic Pain | 15 |
| Osteoarthritis, Knee | 15 |
| Breast Neoplasms | 14 |
| Hernia, Inguinal | 9 |
Trials
Showing 26 to 50 of 1,035. Each trial links to its page on Pharma Observatory.
935 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.
Go deeper on Pharma Observatory
Pharma Observatory connects clinical trials, sponsors, sites and investigators in one searchable platform.