Clinical trials
Phase 4 Acute Pain trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
156 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2002 | 1 |
| 2003 | 1 |
| 2005 | 2 |
| 2006 | 1 |
| 2007 | 1 |
| 2008 | 2 |
| 2009 | 1 |
| 2010 | 3 |
| 2011 | 3 |
| 2012 | 2 |
| 2013 | 7 |
| 2014 | 6 |
| 2015 | 8 |
| 2016 | 7 |
| 2017 | 18 |
| 2018 | 9 |
| 2019 | 16 |
| 2020 | 10 |
| 2021 | 18 |
| 2022 | 12 |
| 2023 | 6 |
| 2024 | 7 |
| 2025 | 9 |
| 2026 | 4 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 89 |
| Unknown status | 24 |
| Terminated | 13 |
| Withdrawn | 11 |
| Recruiting | 9 |
| Not yet recruiting | 8 |
| Suspended | 1 |
| Active, not recruiting | 1 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| University of Minnesota | 8 |
| The University of Hong Kong | 6 |
| Montefiore Medical Center | 4 |
| Duke University | 3 |
| Oslo University Hospital | 3 |
| University Hospital, Toulouse | 3 |
| University of California, San Diego | 3 |
| University of Chile | 3 |
| Antonios Likourezos | 2 |
| Ataturk University | 2 |
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 |
|---|---|
| Acute Pain | 156 |
| Postoperative Pain | 31 |
| Agnosia | 24 |
| Pain | 24 |
| Chronic Pain | 12 |
| Emergencies | 5 |
| Wounds and Injuries | 5 |
| Neuralgia | 4 |
| Anxiety Disorders | 3 |
| Hyperalgesia | 3 |
Trials
Showing 76 to 100 of 156. Each trial links to its page on Pharma Observatory.
56 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.