Clinical trials
Terminated Phase 3 trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
3,517 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 35 |
| 2001 | 38 |
| 2002 | 59 |
| 2003 | 84 |
| 2004 | 96 |
| 2005 | 146 |
| 2006 | 202 |
| 2007 | 197 |
| 2008 | 204 |
| 2009 | 173 |
| 2010 | 198 |
| 2011 | 177 |
| 2012 | 169 |
| 2013 | 154 |
| 2014 | 145 |
| 2015 | 152 |
| 2016 | 134 |
| 2017 | 138 |
| 2018 | 196 |
| 2019 | 147 |
| 2020 | 188 |
| 2021 | 192 |
| 2022 | 121 |
| 2023 | 51 |
| 2024 | 39 |
| 2025 | 7 |
| 2026 | 2 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Terminated | 3,517 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Pfizer | 101 |
| Novartis Pharmaceuticals | 77 |
| Merck Sharp & Dohme LLC | 71 |
| Sanofi | 64 |
| Hoffmann-La Roche | 58 |
| Assistance Publique - Hôpitaux de Paris | 47 |
| AstraZeneca | 42 |
| GlaxoSmithKline | 41 |
| Takeda | 36 |
| Gilead Sciences | 29 |
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 |
|---|---|
| Diabetes Mellitus, Type 2 | 108 |
| Carcinoma, Non-Small-Cell Lung | 95 |
| COVID-19 | 93 |
| Breast Neoplasms | 90 |
| Pain | 80 |
| Neoplasms | 79 |
| Diabetes Mellitus | 73 |
| Alzheimer Disease | 55 |
| Prostatic Neoplasms | 51 |
| Lung Neoplasms | 45 |
Trials
Showing 1 to 25 of 3,517. Each trial links to its page on Pharma Observatory.
3,417 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.