Clinical trials
Phase 1 trials in the United States with unknown status
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
736 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 14 |
| 2001 | 19 |
| 2002 | 12 |
| 2003 | 7 |
| 2004 | 17 |
| 2005 | 12 |
| 2006 | 17 |
| 2007 | 23 |
| 2008 | 28 |
| 2009 | 23 |
| 2010 | 18 |
| 2011 | 22 |
| 2012 | 17 |
| 2013 | 26 |
| 2014 | 24 |
| 2015 | 24 |
| 2016 | 28 |
| 2017 | 32 |
| 2018 | 42 |
| 2019 | 45 |
| 2020 | 49 |
| 2021 | 72 |
| 2022 | 60 |
| 2023 | 42 |
| 2024 | 18 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Unknown status | 736 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| National Institute on Drug Abuse (NIDA) | 26 |
| University of Virginia | 17 |
| Massachusetts General Hospital | 8 |
| Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) | 7 |
| Logan College of Chiropractic | 7 |
| Brigham and Women's Hospital | 6 |
| Kessler Foundation | 6 |
| National Center for Research Resources (NCRR) | 6 |
| James J. Peters Veterans Affairs Medical Center | 5 |
| Milton S. Hershey Medical Center | 5 |
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 | 29 |
| Neoplasms | 25 |
| Carcinoma, Non-Small-Cell Lung | 24 |
| Melanoma | 18 |
| Pancreatic Neoplasms | 18 |
| HIV Infections | 17 |
| Lymphoma, Non-Hodgkin | 16 |
| Neoplasm Metastasis | 16 |
| Cocaine-Related Disorders | 15 |
| Lymphoma | 15 |
Trials
Showing 1 to 25 of 736. Each trial links to its page on Pharma Observatory.
636 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.
No changes to these trials in the last 7 days.
Go deeper on Pharma Observatory
Pharma Observatory connects clinical trials, sponsors, sites and investigators in one searchable platform.