Clinical trials
Enrolling by invitation 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.
972 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2005 | 1 |
| 2006 | 1 |
| 2007 | 1 |
| 2010 | 1 |
| 2012 | 2 |
| 2013 | 2 |
| 2014 | 5 |
| 2015 | 7 |
| 2016 | 8 |
| 2017 | 14 |
| 2018 | 10 |
| 2019 | 18 |
| 2020 | 21 |
| 2021 | 26 |
| 2022 | 57 |
| 2023 | 96 |
| 2024 | 194 |
| 2025 | 255 |
| 2026 | 248 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Enrolling by invitation | 972 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Mayo Clinic | 44 |
| Stanford University | 23 |
| Vanderbilt University Medical Center | 23 |
| University of California, San Francisco | 19 |
| Massachusetts General Hospital | 18 |
| University of Pennsylvania | 18 |
| Indiana University | 15 |
| University of Michigan | 15 |
| VA Office of Research and Development | 15 |
| Northwestern University | 14 |
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 |
|---|---|
| Diabetes Mellitus, Type 2 | 25 |
| Anxiety Disorders | 24 |
| Neoplasms | 24 |
| Parkinson Disease | 20 |
| Hypertension | 19 |
| Epilepsy | 17 |
| Obesity | 17 |
| Heart Failure | 16 |
| Spinal Cord Injuries | 15 |
| Cognitive Dysfunction | 13 |
Trials
Showing 1 to 25 of 972. Each trial links to its page on Pharma Observatory.
872 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.