Clinical trials
Phase 1/2 trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
8,214 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 86 |
| 2001 | 99 |
| 2002 | 119 |
| 2003 | 145 |
| 2004 | 166 |
| 2005 | 200 |
| 2006 | 249 |
| 2007 | 262 |
| 2008 | 270 |
| 2009 | 291 |
| 2010 | 311 |
| 2011 | 290 |
| 2012 | 284 |
| 2013 | 302 |
| 2014 | 308 |
| 2015 | 346 |
| 2016 | 322 |
| 2017 | 380 |
| 2018 | 388 |
| 2019 | 406 |
| 2020 | 374 |
| 2021 | 450 |
| 2022 | 416 |
| 2023 | 398 |
| 2024 | 358 |
| 2025 | 367 |
| 2026 | 386 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 4,030 |
| Terminated | 1,386 |
| Recruiting | 1,213 |
| Active, not recruiting | 673 |
| Unknown status | 341 |
| Withdrawn | 335 |
| Not yet recruiting | 136 |
| Suspended | 66 |
| Enrolling by invitation | 34 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| National Cancer Institute (NCI) | 306 |
| M.D. Anderson Cancer Center | 264 |
| National Institute of Allergy and Infectious Diseases (NIAID) | 129 |
| Memorial Sloan Kettering Cancer Center | 114 |
| Mayo Clinic | 97 |
| Bristol-Myers Squibb | 88 |
| Fred Hutchinson Cancer Center | 76 |
| Novartis Pharmaceuticals | 75 |
| Washington University School of Medicine | 74 |
| Massachusetts General Hospital | 63 |
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 |
|---|---|
| Carcinoma, Non-Small-Cell Lung | 459 |
| Breast Neoplasms | 398 |
| Neoplasms | 363 |
| Leukemia, Myeloid, Acute | 300 |
| Multiple Myeloma | 288 |
| Melanoma | 279 |
| Neoplasm Metastasis | 262 |
| Colorectal Neoplasms | 257 |
| Prostatic Neoplasms | 257 |
| Recurrence | 219 |
Trials
Showing 1 to 25 of 8,214. Each trial links to its page on Pharma Observatory.
8,114 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.