Clinical trials
Withdrawn Phase 2/3 trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
299 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 1 |
| 2001 | 2 |
| 2003 | 1 |
| 2005 | 6 |
| 2006 | 13 |
| 2007 | 4 |
| 2008 | 15 |
| 2009 | 13 |
| 2010 | 11 |
| 2011 | 4 |
| 2012 | 12 |
| 2013 | 10 |
| 2014 | 16 |
| 2015 | 23 |
| 2016 | 10 |
| 2017 | 12 |
| 2018 | 8 |
| 2019 | 22 |
| 2020 | 19 |
| 2021 | 29 |
| 2022 | 17 |
| 2023 | 14 |
| 2024 | 9 |
| 2025 | 10 |
| 2026 | 4 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Withdrawn | 299 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| The University of Texas Medical Branch, Galveston | 6 |
| Asociación para Evitar la Ceguera en México | 4 |
| Duke University | 4 |
| Guangxi Medical University | 4 |
| Hadassah Medical Organization | 4 |
| University of Alberta | 4 |
| University of California, San Francisco | 4 |
| Brigham and Women's Hospital | 3 |
| Centers for Disease Control and Prevention | 3 |
| Emory University | 3 |
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 |
|---|---|
| COVID-19 | 24 |
| Diabetes Mellitus | 7 |
| Burns | 6 |
| Colorectal Neoplasms | 6 |
| Stress Disorders, Post-Traumatic | 6 |
| Carcinoma, Hepatocellular | 5 |
| Inflammation | 5 |
| Influenza, Human | 5 |
| Obesity | 5 |
| Parkinson Disease | 5 |
Trials
Showing 1 to 25 of 299. Each trial links to its page on Pharma Observatory.
199 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.