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 1 to 25 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.