Clinical trials
Completed Chronic Pain trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
731 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 3 |
| 2001 | 6 |
| 2002 | 3 |
| 2003 | 8 |
| 2004 | 14 |
| 2005 | 4 |
| 2006 | 9 |
| 2007 | 9 |
| 2008 | 12 |
| 2009 | 15 |
| 2010 | 20 |
| 2011 | 20 |
| 2012 | 25 |
| 2013 | 25 |
| 2014 | 28 |
| 2015 | 35 |
| 2016 | 31 |
| 2017 | 48 |
| 2018 | 65 |
| 2019 | 71 |
| 2020 | 57 |
| 2021 | 78 |
| 2022 | 46 |
| 2023 | 46 |
| 2024 | 25 |
| 2025 | 16 |
| 2026 | 4 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 731 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| VA Office of Research and Development | 39 |
| University of Washington | 27 |
| University of Michigan | 21 |
| Boston Scientific Corporation | 17 |
| Stanford University | 17 |
| University of Utah | 15 |
| Wake Forest University Health Sciences | 15 |
| Brigham and Women's Hospital | 14 |
| Duke University | 12 |
| Massachusetts General Hospital | 12 |
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 |
|---|---|
| Chronic Pain | 731 |
| Pain | 102 |
| Low Back Pain | 58 |
| Back Pain | 49 |
| Opioid-Related Disorders | 47 |
| Musculoskeletal Pain | 33 |
| Fibromyalgia | 31 |
| Acute Pain | 29 |
| Neuralgia | 29 |
| Agnosia | 27 |
Trials
Showing 1 to 25 of 731. Each trial links to its page on Pharma Observatory.
631 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.