Clinical trials
Withdrawn trials with no applicable phase
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
5,839 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 6 |
| 2001 | 3 |
| 2002 | 5 |
| 2003 | 12 |
| 2004 | 15 |
| 2005 | 39 |
| 2006 | 70 |
| 2007 | 95 |
| 2008 | 104 |
| 2009 | 158 |
| 2010 | 150 |
| 2011 | 162 |
| 2012 | 200 |
| 2013 | 236 |
| 2014 | 242 |
| 2015 | 282 |
| 2016 | 341 |
| 2017 | 303 |
| 2018 | 363 |
| 2019 | 434 |
| 2020 | 444 |
| 2021 | 466 |
| 2022 | 430 |
| 2023 | 354 |
| 2024 | 318 |
| 2025 | 289 |
| 2026 | 158 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Withdrawn | 5,839 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Stanford University | 103 |
| Mayo Clinic | 89 |
| NYU Langone Health | 86 |
| Johns Hopkins University | 81 |
| Wake Forest University Health Sciences | 76 |
| Duke University | 63 |
| Massachusetts General Hospital | 55 |
| University of Alabama at Birmingham | 54 |
| University of California, San Francisco | 54 |
| University of Minnesota | 52 |
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 | 125 |
| Obesity | 123 |
| Pain | 104 |
| Anxiety Disorders | 100 |
| Heart Failure | 94 |
| Stroke | 85 |
| Diabetes Mellitus | 83 |
| Neoplasms | 78 |
| Prostatic Neoplasms | 72 |
| COVID-19 | 71 |
Trials
Showing 51 to 75 of 5,839. Each trial links to its page on Pharma Observatory.
5,739 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.