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 26 to 50 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.