Clinical trials
COVID-19 trials with unknown status
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
1,951 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2011 | 1 |
| 2013 | 2 |
| 2017 | 3 |
| 2018 | 2 |
| 2019 | 9 |
| 2020 | 904 |
| 2021 | 577 |
| 2022 | 292 |
| 2023 | 137 |
| 2024 | 23 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Unknown status | 1,951 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Assiut University | 58 |
| Assistance Publique - Hôpitaux de Paris | 40 |
| University Hospital, Strasbourg, France | 35 |
| Cairo University | 20 |
| Ain Shams University | 15 |
| The University of Hong Kong | 14 |
| Gamaleya Research Institute of Epidemiology and Microbiology, Health Ministry of the Russian Federation | 13 |
| Sinocelltech Ltd. | 13 |
| China National Biotec Group Company Limited | 12 |
| D'Or Institute for Research and Education | 11 |
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 |
| Coronavirus Infections | 125 |
| Pneumonia | 58 |
| Severe Acute Respiratory Syndrome | 54 |
| Post-Acute COVID-19 Syndrome | 41 |
| Respiratory Distress Syndrome | 40 |
| Anxiety Disorders | 39 |
| Pneumonia, Viral | 25 |
| Respiratory Insufficiency | 24 |
| Cytokine Release Syndrome | 22 |
Trials
Showing 1 to 25 of 1,951. Each trial links to its page on Pharma Observatory.
1,851 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.