Clinical trials
Withdrawn Phase 1 COVID-19 trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
33 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2020 | 10 |
| 2021 | 8 |
| 2022 | 7 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 3 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Withdrawn | 33 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Pfizer | 2 |
| Washington University School of Medicine | 2 |
| ASST Fatebenefratelli Sacco | 1 |
| Ascletis Pharmaceuticals Co., Ltd. | 1 |
| Bausch Health Americas, Inc. | 1 |
| BioNTech SE | 1 |
| Hengenix Biotech Inc | 1 |
| Inovio Pharmaceuticals | 1 |
| International Brain Research Foundation | 1 |
| J Ints Bio | 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 | 33 |
| Coronavirus Infections | 6 |
| Respiratory Distress Syndrome | 3 |
| Respiratory Insufficiency | 3 |
| Pneumonia | 2 |
| Severe Acute Respiratory Syndrome | 2 |
| Acute Lung Injury | 1 |
| Dyspnea | 1 |
| Hypoxia | 1 |
| Lung Diseases | 1 |
Trials
Showing 1 to 25 of 33. 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.
Go deeper on Pharma Observatory
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