Clinical trials
Recruiting Phase 4 trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
2,319 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 1 |
| 2001 | 1 |
| 2002 | 1 |
| 2004 | 1 |
| 2007 | 1 |
| 2010 | 1 |
| 2012 | 1 |
| 2013 | 2 |
| 2014 | 2 |
| 2015 | 5 |
| 2016 | 12 |
| 2017 | 16 |
| 2018 | 30 |
| 2019 | 50 |
| 2020 | 64 |
| 2021 | 103 |
| 2022 | 174 |
| 2023 | 266 |
| 2024 | 457 |
| 2025 | 633 |
| 2026 | 498 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Recruiting | 2,319 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Mayo Clinic | 26 |
| University of California, San Francisco | 22 |
| National Taiwan University Hospital | 21 |
| Massachusetts General Hospital | 20 |
| Second Affiliated Hospital, Zhejiang University, School of Medicine | 17 |
| VA Office of Research and Development | 17 |
| Emory University | 15 |
| University of Colorado, Denver | 15 |
| Yonsei University | 15 |
| Brigham and Women's Hospital | 13 |
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 |
|---|---|
| Postoperative Pain | 78 |
| Diabetes Mellitus, Type 2 | 53 |
| Obesity | 42 |
| Coronary Artery Disease | 40 |
| Breast Neoplasms | 34 |
| Atrial Fibrillation | 29 |
| Heart Failure | 29 |
| Renal Insufficiency, Chronic | 29 |
| Hemorrhage | 27 |
| Stroke | 27 |
Trials
Showing 1 to 25 of 2,319. Each trial links to its page on Pharma Observatory.
2,219 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.
Go deeper on Pharma Observatory
Pharma Observatory connects clinical trials, sponsors, sites and investigators in one searchable platform.