Clinical trials
Completed Pain trials with no applicable phase
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
3,261 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 2 |
| 2001 | 6 |
| 2002 | 8 |
| 2003 | 14 |
| 2004 | 25 |
| 2005 | 26 |
| 2006 | 30 |
| 2007 | 43 |
| 2008 | 55 |
| 2009 | 70 |
| 2010 | 74 |
| 2011 | 88 |
| 2012 | 94 |
| 2013 | 96 |
| 2014 | 116 |
| 2015 | 116 |
| 2016 | 169 |
| 2017 | 174 |
| 2018 | 184 |
| 2019 | 220 |
| 2020 | 197 |
| 2021 | 280 |
| 2022 | 314 |
| 2023 | 297 |
| 2024 | 306 |
| 2025 | 200 |
| 2026 | 42 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 3,261 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Riphah International University | 105 |
| Istanbul University - Cerrahpasa | 34 |
| Ataturk University | 29 |
| Stanford University | 28 |
| VA Office of Research and Development | 25 |
| Hacettepe University | 23 |
| Mersin University | 23 |
| Northwestern University | 23 |
| Ege University | 20 |
| Inonu University | 20 |
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 | 3,261 |
| Anxiety Disorders | 450 |
| Agnosia | 191 |
| Postoperative Pain | 157 |
| Chronic Pain | 108 |
| Fatigue | 101 |
| Fibromyalgia | 101 |
| Osteoarthritis, Knee | 97 |
| Neoplasms | 77 |
| Low Back Pain | 76 |
Trials
Showing 1 to 25 of 3,261. Each trial links to its page on Pharma Observatory.
3,161 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.