Clinical trials
Trials in the United States with no applicable phase
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
67,157 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 181 |
| 2001 | 220 |
| 2002 | 319 |
| 2003 | 503 |
| 2004 | 625 |
| 2005 | 811 |
| 2006 | 1,053 |
| 2007 | 1,283 |
| 2008 | 1,517 |
| 2009 | 1,724 |
| 2010 | 1,839 |
| 2011 | 1,893 |
| 2012 | 2,256 |
| 2013 | 2,456 |
| 2014 | 2,642 |
| 2015 | 2,924 |
| 2016 | 3,102 |
| 2017 | 3,699 |
| 2018 | 3,986 |
| 2019 | 4,017 |
| 2020 | 3,524 |
| 2021 | 4,469 |
| 2022 | 4,291 |
| 2023 | 4,459 |
| 2024 | 4,193 |
| 2025 | 4,163 |
| 2026 | 3,858 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 41,783 |
| Recruiting | 8,541 |
| Terminated | 4,868 |
| Unknown status | 3,419 |
| Active, not recruiting | 3,232 |
| Withdrawn | 2,382 |
| Not yet recruiting | 1,685 |
| Enrolling by invitation | 965 |
| Suspended | 282 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| VA Office of Research and Development | 1,219 |
| Mayo Clinic | 1,209 |
| Massachusetts General Hospital | 1,138 |
| Stanford University | 989 |
| Duke University | 952 |
| University of Michigan | 931 |
| University of California, San Francisco | 920 |
| Johns Hopkins University | 792 |
| University of Pennsylvania | 758 |
| University of Pittsburgh | 736 |
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 | 2,801 |
| Anxiety Disorders | 1,599 |
| Breast Neoplasms | 1,520 |
| Diabetes Mellitus | 1,406 |
| Neoplasms | 1,212 |
| Diabetes Mellitus, Type 2 | 1,198 |
| Pain | 1,136 |
| Stroke | 1,070 |
| Hypertension | 1,041 |
| Stress Disorders, Post-Traumatic | 999 |
Trials
Showing 26 to 50 of 67,157. Each trial links to its page on Pharma Observatory.
67,057 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.