Clinical trials
Phase 4 trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
35,959 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 158 |
| 2001 | 217 |
| 2002 | 467 |
| 2003 | 745 |
| 2004 | 915 |
| 2005 | 1,082 |
| 2006 | 1,265 |
| 2007 | 1,347 |
| 2008 | 1,557 |
| 2009 | 1,594 |
| 2010 | 1,600 |
| 2011 | 1,574 |
| 2012 | 1,591 |
| 2013 | 1,618 |
| 2014 | 1,735 |
| 2015 | 1,735 |
| 2016 | 1,736 |
| 2017 | 1,603 |
| 2018 | 1,497 |
| 2019 | 1,502 |
| 2020 | 1,377 |
| 2021 | 1,590 |
| 2022 | 1,400 |
| 2023 | 1,381 |
| 2024 | 1,365 |
| 2025 | 1,353 |
| 2026 | 1,368 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 21,220 |
| Unknown status | 6,225 |
| Terminated | 2,708 |
| Recruiting | 2,319 |
| Withdrawn | 1,343 |
| Not yet recruiting | 1,280 |
| Active, not recruiting | 624 |
| Enrolling by invitation | 171 |
| Suspended | 69 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Novartis Pharmaceuticals | 343 |
| GlaxoSmithKline | 325 |
| Sanofi | 282 |
| Ain Shams University | 237 |
| Cairo University | 234 |
| Massachusetts General Hospital | 229 |
| Pfizer | 220 |
| Assiut University | 213 |
| Seoul National University Hospital | 209 |
| Hoffmann-La Roche | 208 |
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 | 1,183 |
| Postoperative Pain | 1,035 |
| Pain | 843 |
| Diabetes Mellitus | 736 |
| Hypertension | 702 |
| Coronary Artery Disease | 646 |
| Obesity | 495 |
| Schizophrenia | 448 |
| Agnosia | 433 |
| Asthma | 430 |
Trials
Showing 1 to 25 of 35,959. Each trial links to its page on Pharma Observatory.
35,859 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
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