Clinical trials
Completed Observational Chronic Pain trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
389 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 1 |
| 2001 | 1 |
| 2003 | 2 |
| 2004 | 1 |
| 2005 | 1 |
| 2006 | 4 |
| 2007 | 4 |
| 2008 | 17 |
| 2009 | 12 |
| 2010 | 11 |
| 2011 | 11 |
| 2012 | 11 |
| 2013 | 14 |
| 2014 | 12 |
| 2015 | 19 |
| 2016 | 20 |
| 2017 | 12 |
| 2018 | 34 |
| 2019 | 27 |
| 2020 | 25 |
| 2021 | 43 |
| 2022 | 43 |
| 2023 | 26 |
| 2024 | 22 |
| 2025 | 12 |
| 2026 | 3 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 389 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Bogomolets National Medical University | 11 |
| Rigshospitalet, Denmark | 10 |
| University Hospital, Clermont-Ferrand | 8 |
| Abbott Medical Devices | 5 |
| Kutahya Health Sciences University | 5 |
| University Hospital, Basel, Switzerland | 5 |
| Danish Pain Research Center | 4 |
| Eques Indolor AB | 4 |
| Janssen Korea, Ltd., Korea | 4 |
| Teesside University | 4 |
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 | 389 |
| Pain | 55 |
| Neuralgia | 24 |
| Postoperative Pain | 24 |
| Fibromyalgia | 22 |
| Agnosia | 15 |
| Low Back Pain | 15 |
| Acute Pain | 12 |
| Anxiety Disorders | 12 |
| Musculoskeletal Pain | 12 |
Trials
Showing 1 to 25 of 389. Each trial links to its page on Pharma Observatory.
289 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.