Clinical trials
Phase 4 Pain trials with unknown status
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
96 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2004 | 1 |
| 2005 | 1 |
| 2007 | 1 |
| 2008 | 6 |
| 2009 | 7 |
| 2010 | 4 |
| 2011 | 6 |
| 2012 | 1 |
| 2013 | 4 |
| 2014 | 6 |
| 2015 | 6 |
| 2016 | 9 |
| 2017 | 5 |
| 2018 | 7 |
| 2019 | 8 |
| 2020 | 5 |
| 2021 | 3 |
| 2022 | 5 |
| 2023 | 9 |
| 2024 | 2 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Unknown status | 96 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Chung-Ang University Hospital | 5 |
| Kaohsiung Medical University Chung-Ho Memorial Hospital | 3 |
| Beijing Tiantan Hospital | 2 |
| Diskapi Teaching and Research Hospital | 2 |
| Guangzhou General Hospital of Guangzhou Military Command | 2 |
| Mahidol University | 2 |
| NHS Greater Glasgow and Clyde | 2 |
| The Second Affiliated Hospital of Chongqing Medical University | 2 |
| University Hospital, Clermont-Ferrand | 2 |
| University of Sao Paulo | 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 |
|---|---|
| Pain | 96 |
| Postoperative Pain | 15 |
| Agnosia | 5 |
| Anxiety Disorders | 3 |
| Edema | 3 |
| Trismus | 3 |
| Acute Pain | 2 |
| Breast Neoplasms | 2 |
| Carcinoma, Hepatocellular | 2 |
| Emergencies | 2 |
Trials
Showing 1 to 25 of 96. 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
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