Clinical trials
Recruiting Phase 1 trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
2,533 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 1 |
| 2005 | 1 |
| 2008 | 3 |
| 2009 | 2 |
| 2010 | 3 |
| 2013 | 5 |
| 2014 | 5 |
| 2015 | 10 |
| 2016 | 10 |
| 2017 | 24 |
| 2018 | 30 |
| 2019 | 48 |
| 2020 | 70 |
| 2021 | 128 |
| 2022 | 155 |
| 2023 | 266 |
| 2024 | 462 |
| 2025 | 626 |
| 2026 | 679 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Recruiting | 2,533 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| M.D. Anderson Cancer Center | 81 |
| National Cancer Institute (NCI) | 59 |
| City of Hope Medical Center | 50 |
| Memorial Sloan Kettering Cancer Center | 44 |
| Mayo Clinic | 40 |
| Eli Lilly and Company | 33 |
| Yale University | 33 |
| Washington University School of Medicine | 32 |
| Johns Hopkins University | 29 |
| National Institute of Allergy and Infectious Diseases (NIAID) | 27 |
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 |
|---|---|
| Leukemia, Myeloid, Acute | 119 |
| Neoplasm Metastasis | 117 |
| Carcinoma, Non-Small-Cell Lung | 112 |
| Breast Neoplasms | 97 |
| Neoplasms | 91 |
| Colorectal Neoplasms | 85 |
| Recurrence | 69 |
| Ovarian Neoplasms | 68 |
| Prostatic Neoplasms | 65 |
| Pancreatic Neoplasms | 60 |
Trials
Showing 1 to 25 of 2,533. Each trial links to its page on Pharma Observatory.
2,433 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.