Clinical trials
Trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
196,214 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 1,364 |
| 2001 | 1,645 |
| 2002 | 2,154 |
| 2003 | 2,919 |
| 2004 | 3,752 |
| 2005 | 4,575 |
| 2006 | 5,458 |
| 2007 | 5,980 |
| 2008 | 6,626 |
| 2009 | 6,850 |
| 2010 | 6,951 |
| 2011 | 6,922 |
| 2012 | 7,142 |
| 2013 | 7,436 |
| 2014 | 7,818 |
| 2015 | 8,068 |
| 2016 | 8,204 |
| 2017 | 9,416 |
| 2018 | 9,718 |
| 2019 | 9,827 |
| 2020 | 9,456 |
| 2021 | 10,776 |
| 2022 | 9,795 |
| 2023 | 9,718 |
| 2024 | 9,271 |
| 2025 | 9,160 |
| 2026 | 8,560 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 120,965 |
| Recruiting | 22,207 |
| Terminated | 20,504 |
| Active, not recruiting | 10,638 |
| Unknown status | 8,581 |
| Withdrawn | 6,743 |
| Not yet recruiting | 3,278 |
| Enrolling by invitation | 2,007 |
| Suspended | 806 |
| No longer available | 272 |
| Approved for marketing | 112 |
| Available | 86 |
| Temporarily not available | 15 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| National Cancer Institute (NCI) | 3,358 |
| Mayo Clinic | 3,112 |
| M.D. Anderson Cancer Center | 2,869 |
| Massachusetts General Hospital | 2,359 |
| National Institute of Allergy and Infectious Diseases (NIAID) | 2,091 |
| Stanford University | 1,972 |
| Memorial Sloan Kettering Cancer Center | 1,931 |
| Pfizer | 1,899 |
| University of California, San Francisco | 1,868 |
| Duke University | 1,856 |
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 |
|---|---|
| Breast Neoplasms | 5,784 |
| Neoplasms | 4,935 |
| Obesity | 4,759 |
| Prostatic Neoplasms | 3,386 |
| Diabetes Mellitus, Type 2 | 3,219 |
| Carcinoma, Non-Small-Cell Lung | 3,212 |
| Diabetes Mellitus | 3,007 |
| HIV Infections | 2,779 |
| Pain | 2,661 |
| Lung Neoplasms | 2,422 |
Trials
Showing 1 to 25 of 196,214. Each trial links to its page on Pharma Observatory.
196,114 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.