Clinical trials
COVID-19 trials in Japan
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
73 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2016 | 1 |
| 2020 | 23 |
| 2021 | 21 |
| 2022 | 12 |
| 2023 | 6 |
| 2024 | 4 |
| 2025 | 2 |
| 2026 | 3 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 49 |
| Recruiting | 8 |
| Terminated | 7 |
| Unknown status | 6 |
| No longer available | 1 |
| Enrolling by invitation | 1 |
| Withdrawn | 1 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Pfizer | 10 |
| AstraZeneca | 8 |
| ModernaTX, Inc. | 6 |
| Shionogi | 5 |
| AnGes, Inc. | 4 |
| Gilead Sciences | 4 |
| National Institute of Allergy and Infectious Diseases (NIAID) | 4 |
| Merck Sharp & Dohme LLC | 3 |
| Takeda | 3 |
| Genova Inc. | 2 |
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 | 73 |
| Coronavirus Infections | 9 |
| Virus Diseases | 7 |
| Influenza, Human | 5 |
| Lung Diseases | 4 |
| Pneumonia | 4 |
| Respiratory Tract Infections | 4 |
| Severe Acute Respiratory Syndrome | 4 |
| Infections | 3 |
| Pneumonia, Viral | 3 |
Trials
Showing 1 to 25 of 73. 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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