Clinical trials
Completed Phase 2/3 trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
1,349 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 21 |
| 2001 | 24 |
| 2002 | 39 |
| 2003 | 52 |
| 2004 | 57 |
| 2005 | 72 |
| 2006 | 77 |
| 2007 | 66 |
| 2008 | 86 |
| 2009 | 67 |
| 2010 | 68 |
| 2011 | 59 |
| 2012 | 50 |
| 2013 | 48 |
| 2014 | 51 |
| 2015 | 59 |
| 2016 | 62 |
| 2017 | 58 |
| 2018 | 65 |
| 2019 | 47 |
| 2020 | 56 |
| 2021 | 47 |
| 2022 | 29 |
| 2023 | 28 |
| 2024 | 9 |
| 2025 | 2 |
| 2026 | 2 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 1,349 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Mayo Clinic | 36 |
| Johns Hopkins University | 23 |
| VA Office of Research and Development | 22 |
| Yale University | 21 |
| New York State Psychiatric Institute | 19 |
| University of Washington | 18 |
| Pfizer | 17 |
| Massachusetts General Hospital | 16 |
| Brigham and Women's Hospital | 12 |
| Centers for Disease Control and Prevention | 12 |
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 | 39 |
| COVID-19 | 31 |
| Diabetes Mellitus, Type 2 | 25 |
| HIV Infections | 25 |
| Alzheimer Disease | 24 |
| Pain | 22 |
| Substance-Related Disorders | 21 |
| Heart Failure | 20 |
| Diabetes Mellitus | 19 |
| Stress Disorders, Post-Traumatic | 19 |
Trials
Showing 1 to 25 of 1,349. Each trial links to its page on Pharma Observatory.
1,249 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.