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| Withdrawn | 93 |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 1 to 25 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.