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Withdrawn Phase 2/3 trials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| Withdrawn | 299 |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 26 to 50 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.