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ClinicalTrials.gov public records Last synced Sep 9, 2026, 8:03 PM EDT

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Showing 1–24 of 2,049 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Coronavirus Infections Clear all
Completed Phase 2 Interventional Results available

A Study to Learn About the Study Medicines (Nirmatrelvir Plus Ritonavir) in People Aged 12 Years or Older With COVID-19 and a Compromised Immune System

NCT05438602
View directory record Official record
Conditions
COVID-19
Interventions
Nirmatrelvir, Ritonavir, Placebo for nirmatrelvir, Placebo for ritonavir
Drug
Lead sponsor
Pfizer
Industry
Eligibility
12 Years and older
Enrollment
158 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
25
States / cities
San Francisco, California • Washington D.C., District of Columbia • Doral, Florida + 15 more
Source: ClinicalTrials.gov public record
Updated Sep 22, 2024 · Synced Sep 9, 2026, 8:03 PM 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 24, 2024 · Synced Sep 9, 2026, 8:03 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

A Study to Explore the Role of Gut Flora in COVID-19 Infection

NCT04359836
View directory record Official record
Conditions
Gut Microbiome, Gastrointestinal Microbiome, COVID, COVID-19, Corona Virus Infection, Coronavirus, Coronaviridae Infections, Coronavirus 19, Coronavirus-19, COVID 19
Interventions
There is no intervention in this study
Other
Lead sponsor
ProgenaBiome
Other
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2027
U.S. locations
1
States / cities
Ventura, California
Source: ClinicalTrials.gov public record
Updated Jun 4, 2025 · Synced Sep 9, 2026, 8:03 PM EDT
Completed Not applicable Interventional Results available

Q-POC SARS-CoV-2 Assay COVID-19 Clinical Evaluation

NCT05614011
View directory record Official record
Conditions
COVID-19
Interventions
RT-PCR Test, Real-time PCR Test
Diagnostic Test
Lead sponsor
QuantuMDx Group Ltd
Industry
Eligibility
18 Years and older
Enrollment
877 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
3
States / cities
Miami, Florida • Knoxville, Tennessee • Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Feb 27, 2024 · Synced Sep 9, 2026, 8:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Implementation of COVID-19 Testing Strategies in Community Health Centers

NCT04802187
View directory record Official record
Conditions
Covid19
Interventions
RADx CHCs testing intervention strategy, Usual care control
Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
Not listed
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 7, 2023 · Synced Sep 9, 2026, 8:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Palmitoylethanolamide on Proinflammatory Markers in Adults Recently Diagnosed With COVID-19

NCT04912921
View directory record Official record
Conditions
Inflammation, COVID19
Interventions
palmitoylethanolamide, Placebo, Curcumin, Control (microcrystalline cellulose)
Dietary Supplement
Lead sponsor
Arizona State University
Other
Eligibility
18 Years to 65 Years
Enrollment
115 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 7, 2023 · Synced Sep 9, 2026, 8:03 PM EDT
Withdrawn Phase 2 Interventional

Fluvoxamine to Augment Olfactory Recovery For Long COVID-19 Parosmia

NCT05216614
View directory record Official record
Conditions
COVID-19, Olfactory Disorder, Parosmia
Interventions
Fluvoxamine, Placebo
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 70 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 10, 2022 · Synced Sep 9, 2026, 8:03 PM EDT
Completed No phase listed Observational

Famotidine Outpatient COVID-19 Treatment Study

NCT04389567
View directory record Official record
Conditions
COVID-19
Interventions
Famotidine
Drug
Lead sponsor
Northwell Health
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Cold Spring Harbor, New York
Source: ClinicalTrials.gov public record
Updated May 5, 2023 · Synced Sep 9, 2026, 8:03 PM EDT
Completed Phase 2 Interventional Results available

Steroid Dosing by bioMARker Guided Titration in Critically Ill Patients With Pneumonia

NCT03852537
View directory record Official record
Conditions
Pneumonia
Interventions
Methylprednisolone, Usual Care
Drug · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 15, 2021 · Synced Sep 9, 2026, 8:03 PM EDT
Completed No phase listed Observational

COVID Breath Test - Ancon

NCT04760639
View directory record Official record
Conditions
Covid19
Interventions
Breath test
Diagnostic Test
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Nov 13, 2022 · Synced Sep 9, 2026, 8:03 PM EDT
Completed Not applicable Interventional Results available

RECOVER-NEURO: Platform Protocol, Appendix_A to Measure the Effects of BrainHQ, PASC CoRE and tDCS Interventions on Long COVID Symptoms

NCT05965739
View directory record Official record
Conditions
Long COVID, Long Covid19, Long Covid-19
Interventions
BrainHQ/Active Comparator Activity, BrainHQ, PASC CoRE, tDCS-active, tDCS-sham
Other · Device
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
328 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Sep 9, 2026, 8:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Assessment of N-95 Facemask for Use in COVID-19 Pandemic in Case of Shortage of Personal Protective Equipment

NCT04416919
View directory record Official record
Conditions
Coronavirus Infection, Disease Prevention
Interventions
Assembled mask
Other
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Mar 7, 2024 · Synced Sep 9, 2026, 8:03 PM EDT
Not listed Not applicable Interventional

Weathering the Storm: Lung, Heart, and Brain Vascular Rehabilitation for COVID-19

NCT04887272
View directory record Official record
Conditions
Covid19
Interventions
Supervised Exercise Training Protocol, Inspiratory Muscle and Exercise Training
Other
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years to 60 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 13, 2021 · Synced Sep 9, 2026, 8:03 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Transplacental Transmission of RSV (TTRSV)

NCT05443607
View directory record Official record
Conditions
SARS CoV 2 Infection, Respiratory Syncytial Virus (RSV), Bronchiolitis, Asthma
Interventions
Not listed
Lead sponsor
Tulane University
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2028
U.S. locations
2
States / cities
Metairie, Louisiana • New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated May 19, 2026 · Synced Sep 9, 2026, 8:03 PM EDT
Completed Not applicable Interventional Results available

Lift Mobile Mindfulness for COVID-19 Distress Symptoms

NCT04581200
View directory record Official record
Conditions
COVID-19, Cardiorespiratory Failure
Interventions
Lift
Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
4
States / cities
Aurora, Colorado • Ann Arbor, Michigan • Durham, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Nov 6, 2023 · Synced Sep 9, 2026, 8:03 PM EDT
Completed Phase 2Phase 3 Interventional Results available

EPIC-HR: Study of Oral PF-07321332/Ritonavir Compared With Placebo in Nonhospitalized High Risk Adults With COVID-19

NCT04960202
View directory record Official record
Conditions
COVID-19
Interventions
PF-07321332, Ritonavir, Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
2,091 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
73
States / cities
Pelham, Alabama • Mesa, Arizona • Tucson, Arizona + 46 more
Source: ClinicalTrials.gov public record
Updated Jul 9, 2025 · Synced Sep 9, 2026, 8:03 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

NOWDx Test for the Detection of Antibodies to COVID-19 in Lay Persons

NCT04799392
View directory record Official record
Conditions
COVID-19, SARS-CoV-2, Coronavirus
Interventions
NOWDx COVID-19 Test
Device
Lead sponsor
NOWDiagnostics, Inc.
Industry
Eligibility
2 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
5
States / cities
Fayetteville, Arkansas • Anoka, Minnesota • Nixa, Missouri + 2 more
Source: ClinicalTrials.gov public record
Updated Nov 4, 2021 · Synced Sep 9, 2026, 8:03 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Study of Remdesivir in Participants Below 18 Years Old With COVID-19

NCT04431453
View directory record Official record
Conditions
COVID-19
Interventions
Remdesivir
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
Up to 18 Years
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
22
States / cities
Birmingham, Alabama • Los Angeles, California • Madera, California + 17 more
Source: ClinicalTrials.gov public record
Updated Feb 5, 2024 · Synced Sep 9, 2026, 8:03 PM EDT
Terminated Phase 2 Interventional Results available

Safety and Efficacy of EDP1815 in the Treatment of Patients Hospitalized With COVID-19 Infection

NCT04488575
View directory record Official record
Conditions
Covid19
Interventions
EDP1815, Placebo
Drug
Lead sponsor
Evelo Biosciences, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
3
States / cities
New Brunswick, New Jersey • Newark, New Jersey • Edinburg, Texas
Source: ClinicalTrials.gov public record
Updated Dec 18, 2022 · Synced Sep 9, 2026, 8:03 PM EDT
Completed Phase 2 Interventional Results available

Impact of Colchicine and Low-dose Naltrexone on COVID-19

NCT04756128
View directory record Official record
Conditions
Covid19
Interventions
Colchicine 0.6 mg, Naltrexone
Drug
Lead sponsor
HealthPartners Institute
Other
Eligibility
18 Years and older
Enrollment
142 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
2
States / cities
Saint Louis Park, Minnesota • Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 24, 2023 · Synced Sep 9, 2026, 8:03 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Investigation of the B- and T-cell Repertoire and Immune Response in Patients With Acute and Resolved COVID-19 Infection

NCT04362865
View directory record Official record
Conditions
COVID-19
Interventions
Not listed
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
679 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
4
States / cities
Washington D.C., District of Columbia • Baltimore, Maryland • Bethesda, Maryland + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 6, 2025 · Synced Sep 9, 2026, 8:03 PM EDT
Recruiting Phase 3 Interventional

Randomized, Embedded, Multifactorial Adaptive Platform Trial for Community- Acquired Pneumonia

NCT02735707
View directory record Official record
Conditions
Community-acquired Pneumonia, Influenza, COVID-19
Interventions
Ceftriaxone, Moxifloxacin or Levofloxacin, Piperacillin-tazobactam, Ceftaroline, Amoxicillin-clavulanate, Standard course macrolide, Extended course macrolide, No systemic corticosteroid, Fixed-duration Hydrocortisone, Shock-dependent hydrocortisone, Fixed-duration higher dose Hydrocortisone, No antiviral agent for influenza, Five-days oseltamivir, Ten-days oseltamivir, No antiviral agent for COVID-19, Lopinavir / Ritonavir, Hydroxychloroquine, Hydroxychloroquine + lopinavir/ritonavir, Ivermectin, No immune modulation for COVID-19, Interferon beta-1a, Anakinra, Tocilizumab, Sarilumab, Local standard venous thromboprophylaxis, Therapeutic dose anticoagulation, Conventional low dose thromboprophylaxis, Intermediate dose thromboprophylaxis, Continuation of therapeutic dose anticoagulation, No immunoglobulin, Convalescent plasma, Delayed administration of convalescent plasma, No vitamin C, Vitamin C, No antiplatelet, Aspirin, P2Y12 inhibitor, No simvastatin, Simvastatin, Eritoran, Apremilast, Clinician-preferred mechanical ventilation strategy, Protocolised mechanical ventilation strategy, No renin-angiotensin system inhibitor, Angiotensin converting enzyme inhibitor, Angiotensin Receptor Blockers, ARB + DMX-200, No cysteamine, Cysteamine, Fixed-duration dexamethasone, Baloxavir Marboxil, Five-days oseltamivir + baloxavir marboxil, Ten-days oseltamivir + baloxavir marboxil, No endothelial modulator, Imatinib, No Immune Modulator for Influenza, Baricitinib, Nirmatrelvir/ritonavir, Remdesivir, Nirmatrelvir/ritonavir + remdesivir
Drug · Other · Biological + 1 more
Lead sponsor
UMC Utrecht
Other
Eligibility
18 Years and older
Enrollment
20,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2028
U.S. locations
11
States / cities
Jacksonville, Florida • Augusta, Georgia • Chicago, Illinois + 8 more
Source: ClinicalTrials.gov public record
Updated Jul 11, 2024 · Synced Sep 9, 2026, 8:03 PM EDT
Withdrawn Phase 2Phase 3 Interventional

Safety and Efficacy of Baricitinib for COVID-19

NCT04340232
View directory record Official record
Conditions
COVID-19
Interventions
Baricitinib
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 89 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Mar 7, 2021 · Synced Sep 9, 2026, 8:03 PM EDT
Completed Not applicable Interventional

Fully Remote, Telehealth-based Ketogenic Metabolic Therapy for Long COVID

NCT07745699
View directory record Official record
Conditions
Long COVID Fatigue
Interventions
Ketogenic Metabolic Therapy, Lifestyle Intervention
Other · Behavioral
Lead sponsor
National University of Natural Medicine
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Aug 5, 2026 · Synced Sep 9, 2026, 8:03 PM EDT