Clinical trials
Chronic Pain trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
1,249 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 3 |
| 2001 | 6 |
| 2002 | 4 |
| 2003 | 8 |
| 2004 | 16 |
| 2005 | 6 |
| 2006 | 16 |
| 2007 | 12 |
| 2008 | 15 |
| 2009 | 19 |
| 2010 | 26 |
| 2011 | 23 |
| 2012 | 30 |
| 2013 | 33 |
| 2014 | 40 |
| 2015 | 44 |
| 2016 | 45 |
| 2017 | 59 |
| 2018 | 90 |
| 2019 | 96 |
| 2020 | 78 |
| 2021 | 115 |
| 2022 | 75 |
| 2023 | 114 |
| 2024 | 100 |
| 2025 | 91 |
| 2026 | 67 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 731 |
| Recruiting | 181 |
| Terminated | 95 |
| Active, not recruiting | 87 |
| Unknown status | 56 |
| Not yet recruiting | 42 |
| Withdrawn | 34 |
| Enrolling by invitation | 14 |
| Suspended | 8 |
| No longer available | 1 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| VA Office of Research and Development | 57 |
| Stanford University | 41 |
| University of Washington | 36 |
| Boston Scientific Corporation | 28 |
| University of Michigan | 28 |
| Massachusetts General Hospital | 25 |
| University of Utah | 25 |
| Wake Forest University Health Sciences | 19 |
| Duke University | 17 |
| Weill Medical College of Cornell University | 17 |
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 | 1,249 |
| Pain | 187 |
| Opioid-Related Disorders | 86 |
| Low Back Pain | 80 |
| Back Pain | 74 |
| Fibromyalgia | 61 |
| Neuralgia | 57 |
| Musculoskeletal Pain | 56 |
| Agnosia | 55 |
| Acute Pain | 46 |
Trials
Showing 1 to 25 of 1,249. Each trial links to its page on Pharma Observatory.
1,149 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.