Clinical trials
Observational Disease trials with unknown status
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
256 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 1 |
| 2003 | 1 |
| 2005 | 3 |
| 2006 | 2 |
| 2007 | 2 |
| 2008 | 2 |
| 2009 | 3 |
| 2010 | 6 |
| 2011 | 8 |
| 2012 | 9 |
| 2013 | 8 |
| 2014 | 6 |
| 2015 | 10 |
| 2016 | 16 |
| 2017 | 25 |
| 2018 | 18 |
| 2019 | 16 |
| 2020 | 21 |
| 2021 | 27 |
| 2022 | 20 |
| 2023 | 34 |
| 2024 | 16 |
| 2025 | 1 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Unknown status | 256 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Assistance Publique - Hôpitaux de Paris | 5 |
| National Taiwan University Hospital | 5 |
| Peking Union Medical College Hospital | 5 |
| Changhai Hospital | 4 |
| RenJi Hospital | 4 |
| Assiut University | 3 |
| Central South University | 3 |
| First Affiliated Hospital Xi'an Jiaotong University | 3 |
| Fudan University | 3 |
| Fundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau | 3 |
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 |
|---|---|
| Disease | 256 |
| Lung Neoplasms | 11 |
| Breast Neoplasms | 8 |
| COVID-19 | 7 |
| Neoplasms | 6 |
| Sepsis | 6 |
| Stomach Neoplasms | 6 |
| Alzheimer Disease | 5 |
| Cognitive Dysfunction | 5 |
| Colorectal Neoplasms | 5 |
Trials
Showing 1 to 25 of 256. Each trial links to its page on Pharma Observatory.
156 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.