Clinical trials
Withdrawn Phase 2/3 trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
102 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2001 | 2 |
| 2003 | 1 |
| 2005 | 2 |
| 2006 | 7 |
| 2007 | 2 |
| 2008 | 7 |
| 2009 | 6 |
| 2010 | 4 |
| 2011 | 1 |
| 2012 | 5 |
| 2013 | 3 |
| 2014 | 6 |
| 2015 | 8 |
| 2016 | 5 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 9 |
| 2020 | 5 |
| 2021 | 7 |
| 2022 | 5 |
| 2023 | 4 |
| 2025 | 5 |
| 2026 | 2 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Withdrawn | 102 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Stanford University | 3 |
| University of California, Los Angeles | 3 |
| Baylor College of Medicine | 2 |
| Boston Children's Hospital | 2 |
| Brigham and Women's Hospital | 2 |
| Florida Atlantic University | 2 |
| Medical College of Wisconsin | 2 |
| The University of Texas Health Science Center, Houston | 2 |
| The University of Texas Medical Branch, Galveston | 2 |
| University of Alabama at Birmingham | 2 |
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 |
|---|---|
| Stress Disorders, Post-Traumatic | 4 |
| Alcoholism | 3 |
| Asthma | 3 |
| Vitamin D Deficiency | 3 |
| Brain Injuries, Traumatic | 2 |
| Breast Neoplasms | 2 |
| COVID-19 | 2 |
| Colorectal Neoplasms | 2 |
| Diabetes Complications | 2 |
| Diabetes Mellitus, Type 2 | 2 |
Trials
Showing 1 to 25 of 102. Each trial links to its page on Pharma Observatory.
2 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.