Clinical trials
Phase 4 COVID-19 trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
242 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2013 | 1 |
| 2020 | 90 |
| 2021 | 98 |
| 2022 | 23 |
| 2023 | 15 |
| 2024 | 5 |
| 2025 | 6 |
| 2026 | 4 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 113 |
| Unknown status | 77 |
| Terminated | 22 |
| Withdrawn | 13 |
| Active, not recruiting | 7 |
| Recruiting | 5 |
| Suspended | 3 |
| Not yet recruiting | 2 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| China National Biotec Group Company Limited | 10 |
| Sinovac Research and Development Co., Ltd. | 9 |
| Jiangsu Province Centers for Disease Control and Prevention | 8 |
| ClinAmygate | 4 |
| ModernaTX, Inc. | 4 |
| Shahid Beheshti University of Medical Sciences | 4 |
| Sinovac Life Sciences Co., Ltd. | 4 |
| Ain Shams University | 3 |
| Novartis Pharmaceuticals | 3 |
| Sinovac Biotech Co., Ltd | 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 |
|---|---|
| COVID-19 | 242 |
| Coronavirus Infections | 29 |
| Influenza, Human | 7 |
| Pneumonia | 7 |
| Respiratory Tract Infections | 6 |
| Severe Acute Respiratory Syndrome | 6 |
| Virus Diseases | 6 |
| Pneumonia, Viral | 5 |
| Anosmia | 4 |
| HIV Infections | 4 |
Trials
Showing 1 to 25 of 242. Each trial links to its page on Pharma Observatory.
142 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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