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ClinicalTrials.gov public records Last synced Oct 2, 2026, 1:52 AM EDT

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Showing 25–48 of 130 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Covid-19 Prevention Clear all
Completed Phase 3 Interventional Results available

CROWN CORONATION: COVID-19 Research Outcomes Worldwide Network for CORONAvirus prevenTION

NCT04333732
View directory record Official record
Conditions
COVID 19
Interventions
MR or M-M-R II ® vaccine, Placebo
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
3,411 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 26, 2024 · Synced Oct 2, 2026, 1:52 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Doctors for Coronavirus Prevention Project Thanksgiving / Christmas Messaging Campaign

NCT04644328
View directory record Official record
Conditions
Covid19
Interventions
Facebook Ads on the importance of staying safe during the Thanksgiving / Christmas holiday
Behavioral
Lead sponsor
National Bureau of Economic Research, Inc.
Other
Eligibility
18 Years and older
Enrollment
820 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 21, 2021 · Synced Oct 2, 2026, 1:52 AM EDT
Completed Phase 3 Interventional

A Study to Investigate the Prevention of COVID-19 WithVYD222 in Adults with Immune Compromise and in Participants Aged 12 Years or Older Who Are At Risk of Exposure to SARS-CoV-2

NCT06039449
View directory record Official record
Conditions
COVID-19, SARS-CoV-2
Interventions
VYD222 (pemivibart), Normal saline
Drug
Lead sponsor
Invivyd, Inc.
Industry
Eligibility
12 Years and older
Enrollment
790 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
18
States / cities
Fullerton, California • Long Beach, California • Rolling Hills Estates, California + 15 more
Source: ClinicalTrials.gov public record
Updated Dec 9, 2024 · Synced Oct 2, 2026, 1:52 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Study of Ad26.COV2.S in Healthy Pregnant Participants (COVID-19)

NCT04765384
View directory record Official record
Conditions
COVID-19 Prevention
Interventions
Ad26.COV2.S
Biological
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
4
States / cities
Gulfport, Mississippi • Norfolk, Nebraska • Albuquerque, New Mexico + 1 more
Source: ClinicalTrials.gov public record
Updated May 25, 2025 · Synced Oct 2, 2026, 1:52 AM EDT
Completed Phase 3 Interventional Results available

Trial to Evaluate the Efficacy and Safety of Nitazoxanide (NTZ) for Pre- and Post Exposure Prophylaxis of COVID-19 and Other Viral Respiratory Illnesses (VRI) in Healthcare Workers and Others at Increased Risk of SARS-CoV-2 Infection

NCT04359680
View directory record Official record
Conditions
COVID-19, Viral Respiratory Illnesses
Interventions
Nitazoxanide, Placebo, Vitamin Super B-Complex
Drug · Dietary Supplement
Lead sponsor
Romark Laboratories L.C.
Industry
Eligibility
18 Years to 120 Years
Enrollment
1,407 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
26
States / cities
Hot Springs, Arkansas • Huntington Beach, California • Long Beach, California + 21 more
Source: ClinicalTrials.gov public record
Updated Jun 26, 2024 · Synced Oct 2, 2026, 1:52 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Healthcare Provider Human Papillomavirus Education and Professional Skills Intervention

NCT05120869
View directory record Official record
Conditions
Health Personnel Attitude, Health Knowledge, Attitudes, Practice
Interventions
Tailored HPV Education and Professional Skills Intervention Group, General HPV Education and Communication Skills Control Group
Behavioral
Lead sponsor
University of Texas, El Paso
Other
Eligibility
18 Years to 65 Years
Enrollment
161 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
2
States / cities
Las Cruces, New Mexico • El Paso, Texas
Source: ClinicalTrials.gov public record
Updated Aug 25, 2026 · Synced Oct 2, 2026, 1:52 AM EDT
Completed Not applicable Interventional

Telestroke at Comprehensive Stroke Center During the COVID-19 Pandemic

NCT04761874
View directory record Official record
Conditions
Stroke, Acute
Interventions
Telestroke
Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
296 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Edina, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 22, 2021 · Synced Oct 2, 2026, 1:52 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Social Network Diffusion of COVID-19 Prevention for Diverse Criminal Legal Involved Communities

NCT05500274
View directory record Official record
Conditions
COVID-19
Interventions
Education, Motivational
Other
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
778 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 18, 2025 · Synced Oct 2, 2026, 1:52 AM EDT
Terminated Phase 2 Interventional Results available

Tocilizumab for Prevention of Respiratory Failure in Patients With Severe COVID-19 Infection

NCT04377659
View directory record Official record
Conditions
COVID-19
Interventions
Tocilizumab
Drug
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 28, 2025 · Synced Oct 2, 2026, 1:52 AM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

Safety, Tolerability, and Pharmacokinetics of Q-Griffithsin Intranasal Spray

NCT05437029
View directory record Official record
Conditions
COVID-19 Prevention
Interventions
Q-Griffithsin 3.0, Q-Griffithsin 6.0
Drug
Lead sponsor
Kenneth Palmer
Other
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Jul 5, 2022 · Synced Oct 2, 2026, 1:52 AM EDT
Completed No phase listed Observational

eVusheld Assessment reaL wORld Effectiveness in the VA Health System

NCT05663957
View directory record Official record
Conditions
SARS-CoV-2, COVID-19
Interventions
Evusheld
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
12 Years and older
Enrollment
5,814 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Sep 3, 2024 · Synced Oct 2, 2026, 1:52 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Surgical Mask Use on Peak Torque, Total Work and Interset Fatigability During Isokinetic Strength Testing

NCT04706299
View directory record Official record
Conditions
Prevention of COVID-19
Interventions
Resistance Exercise
Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Garfield Heights, Ohio
Source: ClinicalTrials.gov public record
Updated May 24, 2021 · Synced Oct 2, 2026, 1:52 AM EDT
Terminated Phase 2 Interventional

Phase 2 Study to Determine if RTB101 Reduces the Severity of COVID-19 in Older Adults Residing in Nursing Homes

NCT04409327
View directory record Official record
Conditions
COVID19
Interventions
RTB101, Placebo
Drug
Lead sponsor
Restorbio Inc.
Industry
Eligibility
65 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Middletown, Rhode Island
Source: ClinicalTrials.gov public record
Updated Feb 10, 2021 · Synced Oct 2, 2026, 1:52 AM EDT
Completed Phase 2 Interventional Results available

GLS-1027 for the Prevention of Severe Pneumonitis Caused by SARS-CoV-2 Infection (COVID-19)

NCT04590547
View directory record Official record
Conditions
Pneumonitis, SARS-CoV Infection
Interventions
GLS-1027, Placebo
Drug
Lead sponsor
GeneOne Life Science, Inc.
Industry
Eligibility
18 Years and older
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Apr 11, 2025 · Synced Oct 2, 2026, 1:52 AM EDT
Active, not recruiting Phase 2Phase 3 Interventional

Assessing the Efficacy of Sirolimus in Patients With COVID-19 Pneumonia for Prevention of Post-COVID Fibrosis

NCT04948203
View directory record Official record
Conditions
Pulmonary Fibrosis, COVID-19 Pneumonia, Long COVID
Interventions
Sirolimus
Drug
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 15, 2025 · Synced Oct 2, 2026, 1:52 AM EDT
Terminated Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Hydroxychloroquine Post Exposure Prophylaxis for Coronavirus Disease (COVID-19)

NCT04318444
View directory record Official record
Conditions
COVID-19, Corona Virus Infection
Interventions
Hydroxychloroquine, Placebo oral tablet
Drug
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 25, 2024 · Synced Oct 2, 2026, 1:52 AM EDT
Completed Phase 2 Interventional Results available

LSALT Peptide vs. Placebo to Prevent ARDS and Acute Kidney Injury in Patients Infected With SARS-CoV-2 (COVID-19)

NCT04402957
View directory record Official record
Conditions
COVID, Severe Acute Respiratory Syndrome, Sars-CoV2, Acute Kidney Injury, Acute Respiratory Distress Syndrome
Interventions
LSALT peptide, Placebo
Drug
Lead sponsor
Arch Biopartners Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
3
States / cities
San Diego, California • Fort Lauderdale, Florida • Shreveport, Louisiana
Source: ClinicalTrials.gov public record
Updated Jul 9, 2025 · Synced Oct 2, 2026, 1:52 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

A Synthetic MVA-based SARS-CoV-2 Vaccine, GEO-CM04S1, for the Prevention of COVID-19 Infection

NCT04639466
View directory record Official record
Conditions
COVID-19 Infection
Interventions
Placebo Administration, Synthetic MVA-based SARS-CoV-2 Vaccine COH04S1
Drug · Biological
Lead sponsor
GeoVax, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
119 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
3
States / cities
Claremont, California • Duarte, California • Thousand Oaks, California
Source: ClinicalTrials.gov public record
Updated Feb 10, 2026 · Synced Oct 2, 2026, 1:52 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

An Open Label Study in Adults to Test the Efficacy of Mitoquinone/Mitoquinol Mesylate to Prevent Severe Viral Illness

NCT05381454
View directory record Official record
Conditions
Respiratory Viral Infection, Antiviral Treatment, COVID-19
Interventions
Mitoquinone/mitoquinol mesylate
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Dec 16, 2025 · Synced Oct 2, 2026, 1:52 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Low vs. Moderate to High Dose Vitamin D for Prevention of COVID-19

NCT04868903
View directory record Official record
Conditions
SARS-CoV-2 Infection
Interventions
Vitamin D3
Dietary Supplement
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
1,475 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
2
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 22, 2026 · Synced Oct 2, 2026, 1:52 AM EDT
Terminated Phase 1 Interventional

Treatment and Prevention of Acute Lung Injury (ALI) in Patients With COVID-19 Infection

NCT04526912
View directory record Official record
Conditions
Acute Lung Injury
Interventions
VIB7734, Placebo
Drug
Lead sponsor
Viela Bio
Industry
Eligibility
18 Years to 80 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 17, 2021 · Synced Oct 2, 2026, 1:52 AM EDT
Terminated Phase 3 Interventional Results available

A Study to Evaluate Efficacy and Safety of Casirivimab+Imdevimab (Monoclonal Antibodies) for Prevention of COVID-19 in Immunocompromised Adolescents and Adults

NCT05074433
View directory record Official record
Conditions
Immunocompromised
Interventions
casirivimab+imdevimab, Placebo
Drug
Lead sponsor
Regeneron Pharmaceuticals
Industry
Eligibility
12 Years and older
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
66
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Long Beach, California + 48 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2025 · Synced Oct 2, 2026, 1:52 AM EDT
Terminated Phase 2 Interventional Results available

ACTION ON COVID-19: A Study to Test Whether BI 764198 Helps Lung Health of People Hospitalised With COVID-19

NCT04604184
View directory record Official record
Conditions
COVID-19
Interventions
BI 764198, Placebo
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
50 Years and older
Enrollment
133 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
7
States / cities
Orange, California • Alexandria, Louisiana • Boston, Massachusetts + 4 more
Source: ClinicalTrials.gov public record
Updated Apr 11, 2022 · Synced Oct 2, 2026, 1:52 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Brief Informational Intervention for COVID-19 Misinformation Prophylaxis

NCT04557241
View directory record Official record
Conditions
COVID19 Behavioral Prophylaxis
Interventions
Brief informational infographic, Placebo control (non-behavioral infographic)
Behavioral
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
1,017 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Bloomington, Indiana
Source: ClinicalTrials.gov public record
Updated Feb 9, 2021 · Synced Oct 2, 2026, 1:52 AM EDT