Clinical trials
Active, not recruiting Phase 4 trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
270 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2008 | 1 |
| 2011 | 1 |
| 2012 | 1 |
| 2013 | 1 |
| 2014 | 4 |
| 2015 | 9 |
| 2016 | 2 |
| 2017 | 12 |
| 2018 | 12 |
| 2019 | 18 |
| 2020 | 25 |
| 2021 | 28 |
| 2022 | 44 |
| 2023 | 34 |
| 2024 | 47 |
| 2025 | 27 |
| 2026 | 4 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Active, not recruiting | 270 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Mayo Clinic | 7 |
| University of California, San Francisco | 7 |
| Northwestern University | 6 |
| University of Colorado, Denver | 6 |
| University of Miami | 6 |
| Massachusetts General Hospital | 5 |
| Novartis Pharmaceuticals | 5 |
| University of Pennsylvania | 5 |
| Beth Israel Deaconess Medical Center | 4 |
| Children's Hospital Medical Center, Cincinnati | 4 |
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 |
|---|---|
| Obesity | 14 |
| Postoperative Pain | 10 |
| Asthma | 8 |
| COVID-19 | 7 |
| Diabetes Mellitus, Type 2 | 7 |
| Influenza, Human | 6 |
| Osteoporosis | 6 |
| Multiple Sclerosis | 5 |
| Atrial Fibrillation | 4 |
| Heart Failure | 4 |
Trials
Showing 1 to 25 of 270. Each trial links to its page on Pharma Observatory.
170 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.