Clinical trials
Terminated Phase 2 trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
7,294 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 45 |
| 2001 | 66 |
| 2002 | 83 |
| 2003 | 126 |
| 2004 | 183 |
| 2005 | 237 |
| 2006 | 338 |
| 2007 | 391 |
| 2008 | 385 |
| 2009 | 364 |
| 2010 | 344 |
| 2011 | 340 |
| 2012 | 347 |
| 2013 | 336 |
| 2014 | 308 |
| 2015 | 351 |
| 2016 | 295 |
| 2017 | 375 |
| 2018 | 372 |
| 2019 | 397 |
| 2020 | 419 |
| 2021 | 406 |
| 2022 | 302 |
| 2023 | 200 |
| 2024 | 93 |
| 2025 | 39 |
| 2026 | 6 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Terminated | 7,294 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| National Cancer Institute (NCI) | 201 |
| M.D. Anderson Cancer Center | 168 |
| Novartis Pharmaceuticals | 149 |
| Pfizer | 131 |
| Merck Sharp & Dohme LLC | 93 |
| GlaxoSmithKline | 72 |
| Washington University School of Medicine | 54 |
| Mayo Clinic | 53 |
| National Institute of Allergy and Infectious Diseases (NIAID) | 52 |
| Sanofi | 50 |
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 |
|---|---|
| Breast Neoplasms | 419 |
| Carcinoma, Non-Small-Cell Lung | 293 |
| Prostatic Neoplasms | 211 |
| Neoplasms | 206 |
| Neoplasm Metastasis | 183 |
| Melanoma | 167 |
| COVID-19 | 166 |
| Colorectal Neoplasms | 161 |
| Multiple Myeloma | 159 |
| Leukemia, Myeloid, Acute | 146 |
Trials
Showing 1 to 25 of 7,294. Each trial links to its page on Pharma Observatory.
7,194 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.