Clinical trials
COVID-19 trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
1,791 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2011 | 1 |
| 2014 | 1 |
| 2015 | 2 |
| 2016 | 4 |
| 2018 | 4 |
| 2019 | 10 |
| 2020 | 792 |
| 2021 | 485 |
| 2022 | 218 |
| 2023 | 124 |
| 2024 | 71 |
| 2025 | 42 |
| 2026 | 21 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 1,085 |
| Terminated | 271 |
| Unknown status | 127 |
| Withdrawn | 93 |
| Recruiting | 91 |
| Active, not recruiting | 79 |
| No longer available | 14 |
| Enrolling by invitation | 12 |
| Suspended | 9 |
| Not yet recruiting | 8 |
| Approved for marketing | 2 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| National Institute of Allergy and Infectious Diseases (NIAID) | 59 |
| Pfizer | 43 |
| Duke University | 33 |
| Mayo Clinic | 27 |
| University of Pennsylvania | 26 |
| ModernaTX, Inc. | 25 |
| Stanford University | 24 |
| Columbia University | 22 |
| BioNTech SE | 21 |
| University of Minnesota | 20 |
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 | 1,791 |
| Coronavirus Infections | 321 |
| Severe Acute Respiratory Syndrome | 84 |
| Virus Diseases | 68 |
| Post-Acute COVID-19 Syndrome | 63 |
| Respiratory Distress Syndrome | 62 |
| Pneumonia | 61 |
| Influenza, Human | 48 |
| Respiratory Insufficiency | 37 |
| Anxiety Disorders | 32 |
Trials
Showing 26 to 50 of 1,791. Each trial links to its page on Pharma Observatory.
1,691 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
Pharma Observatory connects clinical trials, sponsors, sites and investigators in one searchable platform.