Clinical trials
Completed Phase 4 trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
21,220 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 135 |
| 2001 | 189 |
| 2002 | 422 |
| 2003 | 651 |
| 2004 | 762 |
| 2005 | 871 |
| 2006 | 995 |
| 2007 | 1,000 |
| 2008 | 1,122 |
| 2009 | 1,165 |
| 2010 | 1,154 |
| 2011 | 1,087 |
| 2012 | 1,104 |
| 2013 | 1,097 |
| 2014 | 1,148 |
| 2015 | 1,085 |
| 2016 | 1,023 |
| 2017 | 953 |
| 2018 | 862 |
| 2019 | 801 |
| 2020 | 654 |
| 2021 | 787 |
| 2022 | 591 |
| 2023 | 509 |
| 2024 | 376 |
| 2025 | 223 |
| 2026 | 47 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 21,220 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| GlaxoSmithKline | 286 |
| Novartis Pharmaceuticals | 266 |
| Sanofi | 247 |
| Hoffmann-La Roche | 174 |
| Novartis | 171 |
| Pfizer | 170 |
| AstraZeneca | 159 |
| Eli Lilly and Company | 155 |
| Ain Shams University | 154 |
| Massachusetts General Hospital | 130 |
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 | 803 |
| Postoperative Pain | 589 |
| Pain | 564 |
| Diabetes Mellitus | 493 |
| Hypertension | 469 |
| Coronary Artery Disease | 360 |
| Schizophrenia | 331 |
| Asthma | 307 |
| HIV Infections | 299 |
| Pulmonary Disease, Chronic Obstructive | 294 |
Trials
Showing 1 to 25 of 21,220. Each trial links to its page on Pharma Observatory.
21,120 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.