Clinical trials
Phase 3 Chronic Pain trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
67 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 2 |
| 2001 | 2 |
| 2002 | 3 |
| 2003 | 2 |
| 2004 | 5 |
| 2005 | 2 |
| 2006 | 3 |
| 2007 | 3 |
| 2008 | 2 |
| 2009 | 1 |
| 2010 | 4 |
| 2011 | 3 |
| 2012 | 6 |
| 2013 | 3 |
| 2014 | 2 |
| 2015 | 5 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 2 |
| 2020 | 1 |
| 2021 | 2 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 2 |
| 2026 | 1 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 48 |
| Terminated | 8 |
| Active, not recruiting | 3 |
| Recruiting | 3 |
| Unknown status | 2 |
| Withdrawn | 1 |
| Not yet recruiting | 1 |
| Suspended | 1 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Purdue Pharma LP | 11 |
| Pfizer | 5 |
| Endo USA Inc., a Keenova Therapeutics Company | 4 |
| BioDelivery Sciences International | 3 |
| Cephalon | 3 |
| University of Utah | 3 |
| VA Office of Research and Development | 3 |
| Bausch Health Americas, Inc. | 2 |
| Nektar Therapeutics | 2 |
| Stanford University | 2 |
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 | 67 |
| Low Back Pain | 15 |
| Pain | 13 |
| Osteoarthritis | 11 |
| Back Pain | 9 |
| Fibromyalgia | 5 |
| Opioid-Related Disorders | 5 |
| Breakthrough Pain | 3 |
| Complex Regional Pain Syndromes | 3 |
| Agnosia | 2 |
Trials
Showing 1 to 25 of 67. Each trial links to its page on Pharma Observatory.
Recently changed trials
Changes observed in the last 7 days, newest first, site-count changes left out. Source: ClinicalTrials.gov.
No changes to these trials in the last 7 days.
Go deeper on Pharma Observatory
Pharma Observatory connects clinical trials, sponsors, sites and investigators in one searchable platform.