Clinical trials
Suspended trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
806 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2001 | 1 |
| 2002 | 1 |
| 2003 | 5 |
| 2004 | 2 |
| 2005 | 7 |
| 2006 | 14 |
| 2007 | 12 |
| 2008 | 12 |
| 2009 | 13 |
| 2010 | 11 |
| 2011 | 10 |
| 2012 | 22 |
| 2013 | 11 |
| 2014 | 14 |
| 2015 | 13 |
| 2016 | 20 |
| 2017 | 34 |
| 2018 | 39 |
| 2019 | 49 |
| 2020 | 56 |
| 2021 | 77 |
| 2022 | 59 |
| 2023 | 70 |
| 2024 | 79 |
| 2025 | 70 |
| 2026 | 68 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Suspended | 806 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| National Cancer Institute (NCI) | 27 |
| M.D. Anderson Cancer Center | 22 |
| City of Hope Medical Center | 21 |
| New York State Psychiatric Institute | 18 |
| Mayo Clinic | 15 |
| NYU Langone Health | 11 |
| Stanford University | 10 |
| Weill Medical College of Cornell University | 10 |
| Life University | 9 |
| University of Florida | 9 |
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 |
|---|---|
| Neoplasms | 32 |
| Breast Neoplasms | 28 |
| Prostatic Neoplasms | 24 |
| Colorectal Neoplasms | 17 |
| Leukemia, Myeloid, Acute | 15 |
| Melanoma | 15 |
| Pain | 15 |
| Anxiety Disorders | 14 |
| Carcinoma, Non-Small-Cell Lung | 14 |
| Myelodysplastic Syndromes | 14 |
Trials
Showing 26 to 50 of 806. Each trial links to its page on Pharma Observatory.
706 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.