Clinical trials
Terminated 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.
4,865 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 6 |
| 2001 | 18 |
| 2002 | 35 |
| 2003 | 29 |
| 2004 | 49 |
| 2005 | 70 |
| 2006 | 100 |
| 2007 | 136 |
| 2008 | 181 |
| 2009 | 186 |
| 2010 | 213 |
| 2011 | 190 |
| 2012 | 214 |
| 2013 | 240 |
| 2014 | 286 |
| 2015 | 275 |
| 2016 | 292 |
| 2017 | 338 |
| 2018 | 385 |
| 2019 | 430 |
| 2020 | 276 |
| 2021 | 290 |
| 2022 | 234 |
| 2023 | 186 |
| 2024 | 105 |
| 2025 | 64 |
| 2026 | 8 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Terminated | 4,865 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Mayo Clinic | 111 |
| Duke University | 88 |
| Washington University School of Medicine | 84 |
| Johns Hopkins University | 79 |
| Massachusetts General Hospital | 71 |
| Stanford University | 69 |
| Indiana University | 62 |
| University of Michigan | 62 |
| Wake Forest University Health Sciences | 62 |
| University of California, San Francisco | 59 |
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 | 128 |
| Breast Neoplasms | 121 |
| Pain | 99 |
| Heart Failure | 87 |
| Neoplasms | 83 |
| Anxiety Disorders | 81 |
| Diabetes Mellitus | 80 |
| Stroke | 78 |
| Prostatic Neoplasms | 64 |
| Diabetes Mellitus, Type 2 | 62 |
Trials
Showing 1 to 25 of 4,865. Each trial links to its page on Pharma Observatory.
4,765 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.