Clinical trials
Trials with unknown status
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
94,729 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 161 |
| 2001 | 163 |
| 2002 | 209 |
| 2003 | 284 |
| 2004 | 478 |
| 2005 | 743 |
| 2006 | 907 |
| 2007 | 1,172 |
| 2008 | 1,443 |
| 2009 | 1,749 |
| 2010 | 2,055 |
| 2011 | 2,382 |
| 2012 | 2,632 |
| 2013 | 2,913 |
| 2014 | 3,514 |
| 2015 | 4,076 |
| 2016 | 5,118 |
| 2017 | 5,517 |
| 2018 | 6,553 |
| 2019 | 7,617 |
| 2020 | 8,819 |
| 2021 | 9,887 |
| 2022 | 9,896 |
| 2023 | 9,903 |
| 2024 | 5,533 |
| 2025 | 107 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Unknown status | 94,729 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Assiut University | 2,565 |
| Cairo University | 1,739 |
| National Taiwan University Hospital | 1,154 |
| Sun Yat-sen University | 672 |
| Assistance Publique - Hôpitaux de Paris | 626 |
| Peking Union Medical College Hospital | 580 |
| Seoul National University Hospital | 565 |
| Sohag University | 558 |
| Ain Shams University | 505 |
| Fudan University | 458 |
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 |
|---|---|
| COVID-19 | 1,951 |
| Breast Neoplasms | 1,885 |
| Stroke | 1,365 |
| Obesity | 1,300 |
| Neoplasms | 1,266 |
| Diabetes Mellitus, Type 2 | 1,168 |
| Pain | 1,112 |
| Colorectal Neoplasms | 1,064 |
| Diabetes Mellitus | 1,062 |
| Carcinoma, Non-Small-Cell Lung | 1,018 |
Trials
Showing 1 to 25 of 94,729. Each trial links to its page on Pharma Observatory.
94,629 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.
No changes to these trials in the last 7 days.
Go deeper on Pharma Observatory
Pharma Observatory connects clinical trials, sponsors, sites and investigators in one searchable platform.