Clinical trials
Phase 2 trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
31,739 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 418 |
| 2001 | 493 |
| 2002 | 606 |
| 2003 | 707 |
| 2004 | 949 |
| 2005 | 1,082 |
| 2006 | 1,194 |
| 2007 | 1,273 |
| 2008 | 1,308 |
| 2009 | 1,313 |
| 2010 | 1,217 |
| 2011 | 1,186 |
| 2012 | 1,128 |
| 2013 | 1,146 |
| 2014 | 1,104 |
| 2015 | 1,187 |
| 2016 | 1,142 |
| 2017 | 1,354 |
| 2018 | 1,307 |
| 2019 | 1,283 |
| 2020 | 1,355 |
| 2021 | 1,428 |
| 2022 | 1,202 |
| 2023 | 1,129 |
| 2024 | 1,145 |
| 2025 | 1,215 |
| 2026 | 1,169 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 18,910 |
| Terminated | 4,928 |
| Recruiting | 3,123 |
| Active, not recruiting | 2,115 |
| Withdrawn | 1,123 |
| Unknown status | 933 |
| Not yet recruiting | 385 |
| Suspended | 118 |
| Enrolling by invitation | 104 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| National Cancer Institute (NCI) | 1,438 |
| M.D. Anderson Cancer Center | 978 |
| Memorial Sloan Kettering Cancer Center | 639 |
| Pfizer | 452 |
| Novartis Pharmaceuticals | 441 |
| National Institute of Allergy and Infectious Diseases (NIAID) | 434 |
| Mayo Clinic | 361 |
| GlaxoSmithKline | 360 |
| Eli Lilly and Company | 341 |
| Dana-Farber Cancer Institute | 324 |
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 | 1,395 |
| Carcinoma, Non-Small-Cell Lung | 1,022 |
| Prostatic Neoplasms | 987 |
| Multiple Myeloma | 740 |
| Neoplasms | 720 |
| Lymphoma | 667 |
| Leukemia, Myeloid, Acute | 633 |
| Lung Neoplasms | 630 |
| Leukemia | 609 |
| Melanoma | 584 |
Trials
Showing 1 to 25 of 31,739. Each trial links to its page on Pharma Observatory.
31,639 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.