Clinical trials
Pain trials with unknown status
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
1,112 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2002 | 2 |
| 2003 | 1 |
| 2004 | 7 |
| 2005 | 12 |
| 2006 | 14 |
| 2007 | 16 |
| 2008 | 22 |
| 2009 | 23 |
| 2010 | 21 |
| 2011 | 38 |
| 2012 | 27 |
| 2013 | 41 |
| 2014 | 56 |
| 2015 | 53 |
| 2016 | 45 |
| 2017 | 40 |
| 2018 | 69 |
| 2019 | 65 |
| 2020 | 74 |
| 2021 | 102 |
| 2022 | 134 |
| 2023 | 162 |
| 2024 | 81 |
| 2025 | 2 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Unknown status | 1,112 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Riphah International University | 28 |
| Cairo University | 23 |
| University Hospital, Clermont-Ferrand | 11 |
| Assistance Publique - Hôpitaux de Paris | 9 |
| National Taiwan University Hospital | 9 |
| Tel-Aviv Sourasky Medical Center | 9 |
| Apurano Pharmaceuticals GmbH | 8 |
| University of British Columbia | 8 |
| University of Sao Paulo | 8 |
| Rambam Health Care Campus | 7 |
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 | 1,112 |
| Anxiety Disorders | 109 |
| Postoperative Pain | 71 |
| Agnosia | 64 |
| Chronic Pain | 53 |
| Neoplasms | 30 |
| Osteoarthritis | 27 |
| Fibromyalgia | 26 |
| Osteoarthritis, Knee | 26 |
| Fatigue | 22 |
Trials
Showing 76 to 100 of 1,112. Each trial links to its page on Pharma Observatory.
1,012 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.