Clinical trials
Completed Phase 1/2 trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
4,030 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 68 |
| 2001 | 88 |
| 2002 | 100 |
| 2003 | 115 |
| 2004 | 125 |
| 2005 | 157 |
| 2006 | 187 |
| 2007 | 191 |
| 2008 | 181 |
| 2009 | 199 |
| 2010 | 217 |
| 2011 | 210 |
| 2012 | 194 |
| 2013 | 204 |
| 2014 | 196 |
| 2015 | 199 |
| 2016 | 184 |
| 2017 | 197 |
| 2018 | 191 |
| 2019 | 175 |
| 2020 | 145 |
| 2021 | 126 |
| 2022 | 93 |
| 2023 | 80 |
| 2024 | 37 |
| 2025 | 10 |
| 2026 | 1 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 4,030 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| National Cancer Institute (NCI) | 156 |
| M.D. Anderson Cancer Center | 102 |
| National Institute of Allergy and Infectious Diseases (NIAID) | 87 |
| Mayo Clinic | 67 |
| Memorial Sloan Kettering Cancer Center | 67 |
| Bristol-Myers Squibb | 52 |
| Fred Hutchinson Cancer Center | 50 |
| Novartis Pharmaceuticals | 43 |
| Washington University School of Medicine | 42 |
| University of Washington | 40 |
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 | 187 |
| Carcinoma, Non-Small-Cell Lung | 163 |
| Neoplasms | 151 |
| Leukemia, Myeloid, Acute | 140 |
| Multiple Myeloma | 137 |
| Leukemia | 123 |
| Lymphoma | 115 |
| Melanoma | 115 |
| Prostatic Neoplasms | 114 |
| Lymphoma, Non-Hodgkin | 104 |
Trials
Showing 1 to 25 of 4,030. Each trial links to its page on Pharma Observatory.
3,930 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.