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ClinicalTrials.gov public records Last synced Sep 17, 2026, 4:08 AM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Covid 19 Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Virtual Tai Chi in Older University Workers

NCT07757516
View directory record Official record
Conditions
Sleep Quality
Interventions
Tai Chi (BaFa WuBu) / Qigong (Ba Duan Jing) intervention.
Behavioral
Lead sponsor
University of Arizona
Other
Eligibility
50 Years and older
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Sep 17, 2026, 4:08 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Topical Antibacterial Agents for Prevention of COVID-19

NCT05449392
View directory record Official record
Conditions
COVID-19, SARS-CoV2 Infection
Interventions
Neosporin, Vaseline
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
18 Years to 60 Years
Enrollment
67 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 2, 2023 · Synced Sep 17, 2026, 4:08 AM EDT
Active, not recruiting Phase 2 Interventional

Sodium Citrate in Smell Retraining for People With Post-COVID-19 Olfactory Dysfunction

NCT06204432
View directory record Official record
Conditions
Long Haul COVID-19, Post-Acute COVID-19 Syndrome, Anosmia, Olfaction Disorders
Interventions
Sodium Citrate, Normal Saline, Olfactory Training Kit - "The Olfactory Kit, by AdvancedRx"
Drug · Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 19, 2025 · Synced Sep 17, 2026, 4:08 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

A Prospective Virtual Study to Evaluate the Longevity of IgG Antibodies in Individuals Exposed to COVID-19

NCT05042193
View directory record Official record
Conditions
SARS-CoV-2 Acute Respiratory Disease
Interventions
SARS-CoV-2
Other
Lead sponsor
Everly Health
Industry
Eligibility
18 Years and older
Enrollment
1,883 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jun 14, 2022 · Synced Sep 17, 2026, 4:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Best Practices to Prevent COVID-19 Illness in Staff and People With Serious Mental Illness and Developmental Disabilities in Congregate Living Settings

NCT04726371
View directory record Official record
Conditions
Intellectual Disability, Developmental Disability, Axis I Diagnosis, Mental Illness, Covid19, Coronavirus
Interventions
Generic Best Practices, Tailored Best Practices
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
415 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 11, 2025 · Synced Sep 17, 2026, 4:08 AM EDT
Active, not recruiting Not applicable Interventional

A Study of Healthy Microbiome, Healthy Mind

NCT06020703
View directory record Official record
Conditions
Critical Illness, COVID-19, PICS, Cognitive Impairment, Mental Health Impairment, Weakness, Muscle, Dysbiosis
Interventions
Fermented Food Diet
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Sep 17, 2026, 4:08 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers Results available

Dose Ranging Trial to Assess Safety and Immunogenicity of V590 (COVID-19 Vaccine) in Healthy Adults (V590-001)

NCT04569786
View directory record Official record
Conditions
Coronavirus Disease (COVID-19)
Interventions
V590, Placebo
Biological · Other
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
232 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
7
States / cities
Tempe, Arizona • Miami, Florida • South Miami, Florida + 4 more
Source: ClinicalTrials.gov public record
Updated Dec 28, 2021 · Synced Sep 17, 2026, 4:08 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Learn About How Loss of Liver Function Affects the Blood Levels of the Study Medicine Called PF-07817883.

NCT05884554
View directory record Official record
Conditions
COVID-19
Interventions
PF-07817883
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 75 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
6
States / cities
Anaheim, California • Garden Grove, California • Montclair, California + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Sep 17, 2026, 4:08 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Use of Ultrasound in Establishing COVID-19 Infection as Part of a Trauma Evaluation

NCT04340479
View directory record Official record
Conditions
COVID, Trauma, Ultrasound
Interventions
Ultrasound lung imaging as part of FAST+ evaluation
Diagnostic Test
Lead sponsor
University of Colorado, Denver
Other
Eligibility
Not listed
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 27, 2021 · Synced Sep 17, 2026, 4:08 AM EDT
Terminated Phase 2 Interventional Results available

A Study of Hydroxychloroquine vs Placebo to Prevent COVID-19 Infection in Patients Receiving Radiotherapy

NCT04381988
View directory record Official record
Conditions
COVID-19, Cancer
Interventions
Hydroxychloroquine, Placebo, Radiation therapy
Drug · Other · Radiation
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
7
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Source: ClinicalTrials.gov public record
Updated Oct 26, 2021 · Synced Sep 17, 2026, 4:08 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Simultaneous mRNA COVID-19 and IIV4 Vaccination Study

NCT05028361
View directory record Official record
Conditions
Quality of Life, Injection Site Reaction, Adverse Drug Event, Systemic Reaction
Interventions
mRNA COVID-19, IIV4, Placebo (saline)
Biological · Other
Lead sponsor
Duke University
Other
Eligibility
5 Years and older
Enrollment
348 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
3
States / cities
Baltimore, Maryland • Durham, North Carolina • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 18, 2024 · Synced Sep 17, 2026, 4:08 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 15, 2025 · Synced Sep 17, 2026, 4:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

MGC Health COVID-19 & Flu A+B Home Multi Test Usability Study

NCT05732610
View directory record Official record
Conditions
COVID-19, Influenza A, Influenza B
Interventions
MGC Health COVID-19 & Flu A+B Home Multi Test, MGC Health COVID-19 & Flu A+B Home Multi Test (2 to 13 y/o)
Diagnostic Test
Lead sponsor
Medical Group Care, LLC
Industry
Eligibility
2 Years and older
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated May 1, 2024 · Synced Sep 17, 2026, 4:08 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Pharmacokinetics, Safety and Tolerability of ALG-097558 in Subjects With Hepatic Impairment and in Healthy Subjects With Normal Hepatic Function

NCT06568861
View directory record Official record
Conditions
COVID-19
Interventions
ALG-097558
Drug
Lead sponsor
Aligos Therapeutics
Industry
Eligibility
18 Years to 75 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
2
States / cities
Miami, Florida • Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Aug 4, 2026 · Synced Sep 17, 2026, 4:08 AM EDT
Terminated Phase 1 Interventional Results available

Pharmacokinetics of Sotrovimab as Pre-exposure Prophylaxis for COVID-19 in Hematopoietic Stem Cell Transplant Recipients, COVIDMAB Study

NCT05135650
View directory record Official record
Conditions
COVID-19 Infection, Hematopoietic and Lymphoid Cell Neoplasm, Malignant Solid Neoplasm
Interventions
Questionnaire Administration, Sotrovimab, Biospecimen Collection
Other · Biological · Procedure
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Feb 12, 2025 · Synced Sep 17, 2026, 4:08 AM EDT
Terminated Phase 2 Interventional Results available

Inhaled Nitric Oxide for Preventing Progression in COVID-19

NCT04388683
View directory record Official record
Conditions
COVID-19
Interventions
Nitric Oxide
Drug
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years to 85 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 18, 2022 · Synced Sep 17, 2026, 4:08 AM EDT
Completed No phase listed Observational

Predictors of Severe COVID-19 Outcomes

NCT04388813
View directory record Official record
Conditions
Acute Respiratory Distress Syndrome, COVID-19
Interventions
Not listed
Lead sponsor
Verily Life Sciences LLC
Industry
Eligibility
18 Years and older
Enrollment
494 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
8
States / cities
Tucson, Arizona • Los Angeles, California • Chicago, Illinois + 4 more
Source: ClinicalTrials.gov public record
Updated May 27, 2024 · Synced Sep 17, 2026, 4:08 AM EDT
Completed Phase 3 Interventional Results available

Adaptive COVID-19 Treatment Trial 2 (ACTT-2)

NCT04401579
View directory record Official record
Conditions
COVID-19
Interventions
Placebo, Remdesivir, Baricitinib
Other · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 99 Years
Enrollment
1,033 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
53
States / cities
Birmingham, Alabama • La Jolla, California • Los Angeles, California + 44 more
Source: ClinicalTrials.gov public record
Updated Mar 13, 2022 · Synced Sep 17, 2026, 4:08 AM EDT
Active, not recruiting Phase 2 Interventional

A Study of N-acetylcysteine in Patients With COVID-19 Infection

NCT04374461
View directory record Official record
Conditions
Covid-19
Interventions
N-acetylcysteine, Peripheral Blood
Drug · Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced Sep 17, 2026, 4:08 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Use of Telehealth Technology by Mental Health Care Professionals in Times of COVID-19 Pandemic

NCT04360850
View directory record Official record
Conditions
Online Therapy
Interventions
online survey
Behavioral
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
818 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 28, 2021 · Synced Sep 17, 2026, 4:08 AM EDT
Recruiting No phase listed Observational

Natural History of Post-Coronavirus Disease 19 Convalescence at the National Institutes of Health

NCT04573062
View directory record Official record
Conditions
Post-Coronavirus Disease 19
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years to 100 Years
Enrollment
1,590 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 8, 2026 · Synced Sep 17, 2026, 4:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Impact of Nudges on Downloads of COVID-19 Exposure Notification Smartphone Apps: A Randomized Trial

NCT05080179
View directory record Official record
Conditions
COVID-19
Interventions
Self-Benefit/Social Norm, Self-Benefit/No Social Norm, Other Benefit/Social Norm, Other Benefit/No Social Norm
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
Not listed
Enrollment
16,903 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 27, 2023 · Synced Sep 17, 2026, 4:08 AM EDT
Not listed No phase listed Observational

Risk Stratification of COVID-19 Using Urine Biomarkers

NCT04681040
View directory record Official record
Conditions
Covid19, Urine, Biomarker, Acute Respiratory Failure With Hypoxia
Interventions
Not listed
Lead sponsor
National Center for Global Health and Medicine, Japan
Government
Eligibility
20 Years and older
Enrollment
964 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 26, 2024 · Synced Sep 17, 2026, 4:08 AM EDT
Completed Phase 3 Interventional Results available

Trial to Evaluate Efficacy and Safety of Nitazoxanide in the Treatment of Mild or Moderate COVID-19

NCT04486313
View directory record Official record
Conditions
COVID-19
Interventions
Nitazoxanide, Placebo, Vitamin Super B-Complex
Drug · Dietary Supplement
Lead sponsor
Romark Laboratories L.C.
Industry
Eligibility
12 Years to 120 Years
Enrollment
935 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
2
States / cities
Fort Lauderdale, Florida • The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Mar 28, 2024 · Synced Sep 17, 2026, 4:08 AM EDT