Clinical trials
Enrolling by invitation Observational trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
646 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2001 | 1 |
| 2002 | 4 |
| 2003 | 3 |
| 2004 | 3 |
| 2005 | 1 |
| 2006 | 2 |
| 2007 | 3 |
| 2008 | 7 |
| 2009 | 9 |
| 2010 | 6 |
| 2011 | 5 |
| 2012 | 8 |
| 2013 | 7 |
| 2014 | 8 |
| 2015 | 14 |
| 2016 | 9 |
| 2017 | 15 |
| 2018 | 25 |
| 2019 | 18 |
| 2020 | 33 |
| 2021 | 44 |
| 2022 | 52 |
| 2023 | 62 |
| 2024 | 76 |
| 2025 | 117 |
| 2026 | 105 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Enrolling by invitation | 646 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Mayo Clinic | 46 |
| National Cancer Institute (NCI) | 14 |
| Johns Hopkins University | 13 |
| University of California, San Francisco | 13 |
| Stanford University | 11 |
| Vanderbilt University Medical Center | 9 |
| Zimmer Biomet | 9 |
| Indiana University | 8 |
| NuVasive | 8 |
| Truway Health, Inc. | 8 |
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 |
|---|---|
| Alzheimer Disease | 21 |
| Neoplasms | 19 |
| Diabetes Mellitus | 16 |
| Heart Failure | 16 |
| Cognitive Dysfunction | 14 |
| Disease | 13 |
| Obesity | 13 |
| Parkinson Disease | 13 |
| Intervertebral Disc Degeneration | 12 |
| Hematologic Neoplasms | 11 |
Trials
Showing 1 to 25 of 646. Each trial links to its page on Pharma Observatory.
546 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.