Clinical trials
Terminated Phase 2 trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
4,934 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 41 |
| 2001 | 45 |
| 2002 | 57 |
| 2003 | 87 |
| 2004 | 124 |
| 2005 | 166 |
| 2006 | 234 |
| 2007 | 268 |
| 2008 | 254 |
| 2009 | 224 |
| 2010 | 230 |
| 2011 | 229 |
| 2012 | 217 |
| 2013 | 227 |
| 2014 | 215 |
| 2015 | 218 |
| 2016 | 192 |
| 2017 | 259 |
| 2018 | 260 |
| 2019 | 283 |
| 2020 | 282 |
| 2021 | 279 |
| 2022 | 203 |
| 2023 | 142 |
| 2024 | 54 |
| 2025 | 26 |
| 2026 | 3 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Terminated | 4,934 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| National Cancer Institute (NCI) | 199 |
| M.D. Anderson Cancer Center | 168 |
| Pfizer | 109 |
| Novartis Pharmaceuticals | 103 |
| Washington University School of Medicine | 54 |
| Mayo Clinic | 53 |
| Dana-Farber Cancer Institute | 48 |
| National Institute of Allergy and Infectious Diseases (NIAID) | 48 |
| Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins | 44 |
| GlaxoSmithKline | 43 |
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 | 276 |
| Carcinoma, Non-Small-Cell Lung | 203 |
| Prostatic Neoplasms | 175 |
| Neoplasms | 145 |
| Multiple Myeloma | 134 |
| Melanoma | 130 |
| Neoplasm Metastasis | 128 |
| Leukemia, Myeloid, Acute | 120 |
| Leukemia | 116 |
| Lymphoma | 107 |
Trials
Showing 1 to 25 of 4,934. Each trial links to its page on Pharma Observatory.
4,834 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.