Clinical trials
Withdrawn Phase 4 Postoperative Pain trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
48 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2010 | 1 |
| 2012 | 2 |
| 2013 | 1 |
| 2014 | 2 |
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 5 |
| 2019 | 10 |
| 2020 | 6 |
| 2021 | 2 |
| 2022 | 6 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 1 |
| 2026 | 1 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Withdrawn | 48 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| The University of Texas Health Science Center, Houston | 3 |
| University of California, San Diego | 3 |
| Boston University | 2 |
| Kettering Health Network | 2 |
| Massachusetts General Hospital | 2 |
| Virginia Commonwealth University | 2 |
| Albany Medical College | 1 |
| Algemeen Ziekenhuis Maria Middelares | 1 |
| Anna Uskova | 1 |
| Augusta University | 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 |
|---|---|
| Postoperative Pain | 48 |
| Agnosia | 7 |
| Acute Pain | 4 |
| Pain | 4 |
| Breast Neoplasms | 2 |
| Chest Pain | 2 |
| Osteoarthritis | 2 |
| Bites and Stings | 1 |
| Contusions | 1 |
| Edema | 1 |
Trials
Showing 1 to 25 of 48. 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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