Clinical trials
Withdrawn COVID-19 trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
369 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2018 | 1 |
| 2020 | 136 |
| 2021 | 112 |
| 2022 | 59 |
| 2023 | 37 |
| 2024 | 15 |
| 2025 | 6 |
| 2026 | 3 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Withdrawn | 369 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Sorrento Therapeutics, Inc. | 10 |
| Stanford University | 7 |
| Assistance Publique - Hôpitaux de Paris | 6 |
| University Hospital, Lille | 6 |
| Pfizer | 5 |
| Washington University School of Medicine | 5 |
| Clover Biopharmaceuticals AUS Pty | 4 |
| Duke University | 4 |
| Larkin Community Hospital | 4 |
| University of Alabama at Birmingham | 4 |
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 | 369 |
| Coronavirus Infections | 42 |
| Pneumonia | 14 |
| Respiratory Distress Syndrome | 14 |
| Severe Acute Respiratory Syndrome | 13 |
| Respiratory Insufficiency | 12 |
| Pneumonia, Viral | 8 |
| Cytokine Release Syndrome | 6 |
| Hypoxia | 6 |
| Influenza, Human | 6 |
Trials
Showing 26 to 50 of 369. Each trial links to its page on Pharma Observatory.
269 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.