Clinical trials
Pain trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
9,065 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 16 |
| 2001 | 30 |
| 2002 | 48 |
| 2003 | 68 |
| 2004 | 99 |
| 2005 | 134 |
| 2006 | 206 |
| 2007 | 212 |
| 2008 | 287 |
| 2009 | 274 |
| 2010 | 278 |
| 2011 | 334 |
| 2012 | 310 |
| 2013 | 290 |
| 2014 | 366 |
| 2015 | 335 |
| 2016 | 363 |
| 2017 | 359 |
| 2018 | 397 |
| 2019 | 440 |
| 2020 | 388 |
| 2021 | 539 |
| 2022 | 596 |
| 2023 | 664 |
| 2024 | 717 |
| 2025 | 697 |
| 2026 | 493 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 5,824 |
| Unknown status | 1,112 |
| Recruiting | 652 |
| Terminated | 496 |
| Not yet recruiting | 433 |
| Withdrawn | 240 |
| Active, not recruiting | 178 |
| Enrolling by invitation | 93 |
| Suspended | 31 |
| No longer available | 5 |
| Available | 1 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Riphah International University | 198 |
| Cairo University | 66 |
| Northwestern University | 59 |
| Pfizer | 58 |
| Hacettepe University | 56 |
| Stanford University | 54 |
| Assistance Publique - Hôpitaux de Paris | 49 |
| VA Office of Research and Development | 48 |
| Duke University | 46 |
| Istanbul University - Cerrahpasa | 46 |
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 | 9,065 |
| Anxiety Disorders | 872 |
| Agnosia | 611 |
| Postoperative Pain | 519 |
| Chronic Pain | 397 |
| Osteoarthritis | 262 |
| Neoplasms | 261 |
| Osteoarthritis, Knee | 255 |
| Fibromyalgia | 246 |
| Fatigue | 216 |
Trials
Showing 1 to 25 of 9,065. Each trial links to its page on Pharma Observatory.
8,965 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.