Clinical trials
Observational COVID-19 trials in Japan
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
14 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 5 |
| 2023 | 2 |
| 2024 | 1 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 11 |
| Unknown status | 2 |
| Withdrawn | 1 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| ModernaTX, Inc. | 4 |
| Pfizer | 4 |
| AstraZeneca | 2 |
| Bristol-Myers Squibb | 1 |
| National Center for Global Health and Medicine, Japan | 1 |
| Public Health Foundation of India | 1 |
| Takeda | 1 |
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 | 14 |
| Coronavirus Infections | 3 |
| Virus Diseases | 3 |
| Cardiovascular Diseases | 1 |
Trials
Showing 1 to 14 of 14. Each trial links to its page 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.
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