Clinical trials
Pain trials in the United States with no applicable phase
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
1,136 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 2 |
| 2001 | 3 |
| 2002 | 4 |
| 2003 | 9 |
| 2004 | 12 |
| 2005 | 16 |
| 2006 | 27 |
| 2007 | 34 |
| 2008 | 36 |
| 2009 | 36 |
| 2010 | 49 |
| 2011 | 51 |
| 2012 | 61 |
| 2013 | 52 |
| 2014 | 53 |
| 2015 | 45 |
| 2016 | 62 |
| 2017 | 50 |
| 2018 | 59 |
| 2019 | 63 |
| 2020 | 51 |
| 2021 | 59 |
| 2022 | 42 |
| 2023 | 53 |
| 2024 | 64 |
| 2025 | 65 |
| 2026 | 59 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 735 |
| Recruiting | 122 |
| Terminated | 99 |
| Unknown status | 61 |
| Withdrawn | 44 |
| Not yet recruiting | 30 |
| Active, not recruiting | 29 |
| Enrolling by invitation | 9 |
| Suspended | 7 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Northwestern University | 36 |
| VA Office of Research and Development | 36 |
| Stanford University | 32 |
| Duke University | 27 |
| Massachusetts General Hospital | 26 |
| University of Michigan | 19 |
| Mayo Clinic | 18 |
| Wake Forest University Health Sciences | 18 |
| University of Washington | 17 |
| University of Pittsburgh | 16 |
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 |
|---|---|
| Pain | 1,136 |
| Anxiety Disorders | 118 |
| Chronic Pain | 98 |
| Agnosia | 97 |
| Fatigue | 64 |
| Neoplasms | 48 |
| Fibromyalgia | 45 |
| Postoperative Pain | 45 |
| Breast Neoplasms | 31 |
| Acute Pain | 30 |
Trials
Showing 1 to 25 of 1,136. Each trial links to its page on Pharma Observatory.
1,036 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.