Clinical trials
Completed Phase 1 trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
35,480 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 226 |
| 2001 | 277 |
| 2002 | 381 |
| 2003 | 491 |
| 2004 | 715 |
| 2005 | 872 |
| 2006 | 1,085 |
| 2007 | 1,307 |
| 2008 | 1,542 |
| 2009 | 1,751 |
| 2010 | 1,809 |
| 2011 | 1,816 |
| 2012 | 1,683 |
| 2013 | 1,730 |
| 2014 | 1,914 |
| 2015 | 1,729 |
| 2016 | 1,678 |
| 2017 | 1,676 |
| 2018 | 1,694 |
| 2019 | 1,687 |
| 2020 | 1,609 |
| 2021 | 1,731 |
| 2022 | 1,546 |
| 2023 | 1,345 |
| 2024 | 1,122 |
| 2025 | 740 |
| 2026 | 184 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 35,480 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Boehringer Ingelheim | 942 |
| Pfizer | 929 |
| GlaxoSmithKline | 888 |
| AstraZeneca | 812 |
| National Institute of Allergy and Infectious Diseases (NIAID) | 702 |
| Eli Lilly and Company | 667 |
| National Cancer Institute (NCI) | 615 |
| Merck Sharp & Dohme LLC | 530 |
| Novo Nordisk A/S | 411 |
| Bristol-Myers Squibb | 406 |
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 |
|---|---|
| Neoplasms | 1,384 |
| Diabetes Mellitus, Type 2 | 860 |
| Breast Neoplasms | 796 |
| HIV Infections | 745 |
| Carcinoma, Non-Small-Cell Lung | 570 |
| Diabetes Mellitus | 515 |
| Neoplasm Metastasis | 455 |
| Leukemia, Myeloid, Acute | 452 |
| Lymphoma | 448 |
| Obesity | 441 |
Trials
Showing 51 to 75 of 35,480. Each trial links to its page on Pharma Observatory.
35,380 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.