Clinical trials
Phase 3 trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
16,490 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 197 |
| 2001 | 222 |
| 2002 | 310 |
| 2003 | 419 |
| 2004 | 542 |
| 2005 | 661 |
| 2006 | 726 |
| 2007 | 680 |
| 2008 | 727 |
| 2009 | 638 |
| 2010 | 659 |
| 2011 | 638 |
| 2012 | 610 |
| 2013 | 591 |
| 2014 | 612 |
| 2015 | 672 |
| 2016 | 584 |
| 2017 | 652 |
| 2018 | 736 |
| 2019 | 654 |
| 2020 | 645 |
| 2021 | 689 |
| 2022 | 614 |
| 2023 | 565 |
| 2024 | 558 |
| 2025 | 597 |
| 2026 | 588 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 11,052 |
| Terminated | 1,927 |
| Recruiting | 1,393 |
| Active, not recruiting | 1,235 |
| Unknown status | 379 |
| Withdrawn | 293 |
| Not yet recruiting | 101 |
| Enrolling by invitation | 69 |
| Suspended | 41 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| AstraZeneca | 455 |
| Pfizer | 426 |
| Novartis Pharmaceuticals | 398 |
| GlaxoSmithKline | 396 |
| Eli Lilly and Company | 374 |
| Hoffmann-La Roche | 311 |
| Sanofi | 299 |
| Novo Nordisk A/S | 231 |
| Bristol-Myers Squibb | 218 |
| National Cancer Institute (NCI) | 193 |
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 |
|---|---|
| Diabetes Mellitus, Type 2 | 568 |
| Breast Neoplasms | 404 |
| Carcinoma, Non-Small-Cell Lung | 329 |
| Pain | 319 |
| Diabetes Mellitus | 305 |
| HIV Infections | 305 |
| Prostatic Neoplasms | 263 |
| Obesity | 253 |
| Neoplasms | 247 |
| Asthma | 246 |
Trials
Showing 1 to 25 of 16,490. Each trial links to its page on Pharma Observatory.
16,390 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.