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.
67,122 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 | 4,016 |
| 2020 | 3,523 |
| 2021 | 4,469 |
| 2022 | 4,292 |
| 2023 | 4,457 |
| 2024 | 4,194 |
| 2025 | 4,160 |
| 2026 | 3,839 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 41,731 |
| Recruiting | 8,545 |
| Terminated | 4,865 |
| Unknown status | 3,428 |
| Active, not recruiting | 3,227 |
| Withdrawn | 2,381 |
| Not yet recruiting | 1,691 |
| Enrolling by invitation | 972 |
| 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 | 1,208 |
| Massachusetts General Hospital | 1,138 |
| Stanford University | 989 |
| Duke University | 951 |
| 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 | 2,800 |
| Anxiety Disorders | 1,598 |
| Breast Neoplasms | 1,520 |
| Diabetes Mellitus | 1,406 |
| Neoplasms | 1,212 |
| Diabetes Mellitus, Type 2 | 1,197 |
| Pain | 1,136 |
| Stroke | 1,070 |
| Hypertension | 1,040 |
| Stress Disorders, Post-Traumatic | 998 |
Trials
Showing 1 to 25 of 67,122. Each trial links to its page on Pharma Observatory.
67,022 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.