Clinical trials
Phase 1 Pain trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
412 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2002 | 3 |
| 2003 | 4 |
| 2004 | 8 |
| 2005 | 5 |
| 2006 | 9 |
| 2007 | 17 |
| 2008 | 32 |
| 2009 | 23 |
| 2010 | 17 |
| 2011 | 15 |
| 2012 | 23 |
| 2013 | 16 |
| 2014 | 20 |
| 2015 | 13 |
| 2016 | 10 |
| 2017 | 14 |
| 2018 | 16 |
| 2019 | 15 |
| 2020 | 14 |
| 2021 | 18 |
| 2022 | 24 |
| 2023 | 26 |
| 2024 | 25 |
| 2025 | 26 |
| 2026 | 16 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 305 |
| Unknown status | 30 |
| Recruiting | 26 |
| Terminated | 18 |
| Active, not recruiting | 15 |
| Withdrawn | 9 |
| Not yet recruiting | 5 |
| Suspended | 3 |
| Enrolling by invitation | 1 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Vertex Pharmaceuticals Incorporated | 24 |
| GlaxoSmithKline | 16 |
| Pfizer | 13 |
| AstraZeneca | 11 |
| University of Utah | 9 |
| Yale University | 8 |
| Bayer | 7 |
| HALEON | 6 |
| Keith M Vogt | 6 |
| Mundipharma Research Limited | 6 |
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 | 412 |
| Agnosia | 29 |
| Chronic Pain | 19 |
| Postoperative Pain | 17 |
| Anxiety Disorders | 11 |
| Neoplasms | 11 |
| Acute Pain | 10 |
| Marijuana Abuse | 10 |
| Neuralgia | 10 |
| Hyperalgesia | 9 |
Trials
Showing 76 to 100 of 412. Each trial links to its page on Pharma Observatory.
312 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.