Clinical trials
Phase 1 Chronic Pain trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
105 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2003 | 2 |
| 2004 | 1 |
| 2005 | 2 |
| 2006 | 3 |
| 2007 | 3 |
| 2008 | 2 |
| 2009 | 2 |
| 2010 | 7 |
| 2011 | 4 |
| 2012 | 2 |
| 2013 | 3 |
| 2014 | 5 |
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 10 |
| 2018 | 6 |
| 2019 | 8 |
| 2020 | 5 |
| 2021 | 5 |
| 2022 | 6 |
| 2023 | 4 |
| 2024 | 7 |
| 2025 | 4 |
| 2026 | 8 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 74 |
| Not yet recruiting | 8 |
| Unknown status | 7 |
| Active, not recruiting | 5 |
| Recruiting | 5 |
| Terminated | 4 |
| Enrolling by invitation | 1 |
| Withdrawn | 1 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Pfizer | 9 |
| AstraZeneca | 6 |
| Stanford University | 6 |
| Mundipharma (China) Pharmaceutical Co. Ltd | 5 |
| Medical University of South Carolina | 3 |
| VA Office of Research and Development | 3 |
| Centrexion Therapeutics | 2 |
| Florida State University | 2 |
| Grünenthal GmbH | 2 |
| Johns Hopkins 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 | 105 |
| Pain | 19 |
| Opioid-Related Disorders | 14 |
| Neuralgia | 11 |
| Nociceptive Pain | 6 |
| Low Back Pain | 5 |
| Acute Pain | 4 |
| Agnosia | 4 |
| Osteoarthritis | 4 |
| Cystitis, Interstitial | 3 |
Trials
Showing 51 to 75 of 105. Each trial links to its page on Pharma Observatory.
5 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.
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.