Clinical trials
Enrolling by invitation trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
5,392 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 1 |
| 2001 | 2 |
| 2002 | 4 |
| 2003 | 7 |
| 2004 | 3 |
| 2005 | 4 |
| 2006 | 3 |
| 2007 | 6 |
| 2008 | 14 |
| 2009 | 12 |
| 2010 | 11 |
| 2011 | 13 |
| 2012 | 16 |
| 2013 | 20 |
| 2014 | 28 |
| 2015 | 35 |
| 2016 | 38 |
| 2017 | 54 |
| 2018 | 81 |
| 2019 | 93 |
| 2020 | 115 |
| 2021 | 182 |
| 2022 | 256 |
| 2023 | 449 |
| 2024 | 1,134 |
| 2025 | 1,657 |
| 2026 | 1,131 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Enrolling by invitation | 5,392 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Mayo Clinic | 113 |
| Stanford University | 41 |
| University of California, San Francisco | 40 |
| National Taiwan University Hospital | 38 |
| Vanderbilt University Medical Center | 35 |
| Massachusetts General Hospital | 33 |
| University of Pennsylvania | 31 |
| Novo Nordisk A/S | 28 |
| Johns Hopkins University | 27 |
| Cairo University | 25 |
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 |
|---|---|
| Anxiety Disorders | 116 |
| Pain | 93 |
| Obesity | 92 |
| Neoplasms | 88 |
| Diabetes Mellitus | 85 |
| Stroke | 80 |
| Diabetes Mellitus, Type 2 | 78 |
| Parkinson Disease | 76 |
| Cognitive Dysfunction | 74 |
| Breast Neoplasms | 73 |
Trials
Showing 26 to 50 of 5,392. Each trial links to its page on Pharma Observatory.
5,292 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.