Clinical trials
Terminated Phase 2/3 trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
665 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 2 |
| 2001 | 6 |
| 2002 | 14 |
| 2003 | 18 |
| 2004 | 9 |
| 2005 | 30 |
| 2006 | 31 |
| 2007 | 28 |
| 2008 | 33 |
| 2009 | 27 |
| 2010 | 18 |
| 2011 | 37 |
| 2012 | 26 |
| 2013 | 31 |
| 2014 | 31 |
| 2015 | 32 |
| 2016 | 25 |
| 2017 | 24 |
| 2018 | 27 |
| 2019 | 32 |
| 2020 | 57 |
| 2021 | 49 |
| 2022 | 33 |
| 2023 | 17 |
| 2024 | 14 |
| 2025 | 1 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Terminated | 665 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Merck Sharp & Dohme LLC | 9 |
| Mashhad University of Medical Sciences | 8 |
| Mayo Clinic | 8 |
| Pfizer | 8 |
| The University of Texas Medical Branch, Galveston | 8 |
| Florida Atlantic University | 7 |
| Novartis Pharmaceuticals | 6 |
| Assistance Publique - Hôpitaux de Paris | 5 |
| Boehringer Ingelheim | 5 |
| European Organisation for Research and Treatment of Cancer - EORTC | 5 |
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 | 50 |
| Breast Neoplasms | 14 |
| Stroke | 12 |
| Diabetes Mellitus | 11 |
| Alzheimer Disease | 10 |
| Carcinoma, Non-Small-Cell Lung | 10 |
| Heart Failure | 10 |
| Neoplasms | 10 |
| Colitis, Ulcerative | 9 |
| Lung Neoplasms | 9 |
Trials
Showing 1 to 25 of 665. Each trial links to its page on Pharma Observatory.
565 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.