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| Withdrawn | 240 |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 51 to 75 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.