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ClinicalTrials.gov public records Last synced Oct 17, 2026, 10:43 AM EDT

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Showing 745–768 of 2,013 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Nidovirales Infections Clear all
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Delayed Heterologous SARS-CoV-2 Vaccine Dosing (Boost) After Receipt of EUA Vaccines

NCT04889209
View directory record Official record
Conditions
COVID-19
Interventions
Ad26.COV2.S, BNT162b2, mRNA-1273, mRNA-1273.211, mRNA-1273.222, SARS-CoV-2 rS/M1
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 99 Years
Enrollment
867 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
10
States / cities
Decatur, Georgia • Baltimore, Maryland • New York, New York + 6 more
Source: ClinicalTrials.gov public record
Updated Apr 20, 2025 · Synced Oct 17, 2026, 10:43 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Pediatric COVID Outcomes Study (PECOS)

NCT04830852
View directory record Official record
Conditions
Covid19, MIS-C Associated With COVID-19, MIS-C Multisystem Inflammatory Syndrome in Children, SARS-CoV2 Infection
Interventions
Not listed
Lead sponsor
Children's National Research Institute
Other
Eligibility
0 Years to 21 Years
Enrollment
1,097 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
2
States / cities
Washington D.C., District of Columbia • Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 8, 2026 · Synced Oct 17, 2026, 10:43 AM EDT
Completed Not applicable Interventional Results available

Acupuncture Therapy for COVID-Related Olfactory Loss

NCT04952389
View directory record Official record
Conditions
Olfactory Dysfunction, COVID-19
Interventions
Acupuncture Therapy, Budesonide, Olfactory Training
Device · Drug · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 12, 2024 · Synced Oct 17, 2026, 10:43 AM EDT
Completed Phase 2 Interventional Results available

COVID-19 PrEP HCW HCQ Study

NCT04354870
View directory record Official record
Conditions
COVID-19
Interventions
Hydroxychloroquine (HCQ)
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 14, 2022 · Synced Oct 17, 2026, 10:43 AM EDT
Completed No phase listed Observational

Ambulatory Management of Moderate to High Risk COVID-19 (SARS-CoV-2) Patients - The Coronavirus Related Outpatient Work Navigators (CROWN) Protocol

NCT04476602
View directory record Official record
Conditions
Covid-19 (SARS-CoV-2)
Interventions
Not listed
Lead sponsor
Northwell Health
Other
Eligibility
18 Years and older
Enrollment
182 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
New Hyde Park, New York
Source: ClinicalTrials.gov public record
Updated Jul 14, 2022 · Synced Oct 17, 2026, 10:43 AM EDT
Completed No phase listed Observational

Acquiring Convalescent Specimens for COVID-19 Antibodies

NCT04342195
View directory record Official record
Conditions
COVID-19, Coronavirus Infection, Corona Virus Infection
Interventions
Blood draw
Procedure
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 20, 2022 · Synced Oct 17, 2026, 10:43 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Epidemiology, Immunology and Clinical Characteristics of COVID-19 (EPIC3)

NCT05764083
View directory record Official record
Conditions
SARS-CoV-2, COVID-19
Interventions
Not listed
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
2,824 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jul 9, 2025 · Synced Oct 17, 2026, 10:43 AM EDT
Completed Phase 2 Interventional Results available

Losartan for Patients With COVID-19 Not Requiring Hospitalization

NCT04311177
View directory record Official record
Conditions
Corona Virus Infection, Acute Respiratory Distress Syndrome, SARS-CoV Infection
Interventions
Losartan, Placebo
Drug · Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
117 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
4
States / cities
Minneapolis, Minnesota • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 4, 2022 · Synced Oct 17, 2026, 10:43 AM EDT
Completed No phase listed Observational

Antimicrobial Resistance During the SARS-CoV-2 (COVID-19) Pandemic

NCT06334731
View directory record Official record
Conditions
COVID-19
Interventions
Not listed
Lead sponsor
Methodist Health System
Other
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jul 28, 2025 · Synced Oct 17, 2026, 10:43 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

You and Me COVID Free

NCT05212883
View directory record Official record
Conditions
COVID-19
Interventions
Behavioral questionaires
Behavioral
Lead sponsor
Duke University
Other
Eligibility
12 Years and older
Enrollment
2,778 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Merced, California
Source: ClinicalTrials.gov public record
Updated Jun 6, 2023 · Synced Oct 17, 2026, 10:43 AM EDT
Completed Not applicable Interventional Results available

Mental Health Among Patients, Providers, and Staff During the COVID-19 Era

NCT04700137
View directory record Official record
Conditions
Covid19, Mental Health
Interventions
Caring Contacts Plus Introductory Phone Call (CC+), Caring Contacts without an introductory phone call (CC)
Other
Lead sponsor
St. Luke's Health System, Boise, Idaho
Other
Eligibility
12 Years and older
Enrollment
666 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Boise, Idaho
Source: ClinicalTrials.gov public record
Updated Jan 25, 2024 · Synced Oct 17, 2026, 10:43 AM EDT
Completed Phase 1 Interventional Results available

A Study to Evaluate Ampion in Patients With Prolonged Respiratory Symptoms Due to COVID-19 (Long COVID)

NCT04880161
View directory record Official record
Conditions
Covid19
Interventions
Ampion, Placebo
Biological · Other
Lead sponsor
Ampio Pharmaceuticals. Inc.
Industry
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Englewood, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 21, 2023 · Synced Oct 17, 2026, 10:43 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

The Impact of COVID-19 on Pulmonary Procedures

NCT05022446
View directory record Official record
Conditions
COVID-19 Infection, Hematopoietic and Lymphoid Cell Neoplasm, Malignant Solid Neoplasm
Interventions
Survey Administration
Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
Not listed
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Oct 17, 2026, 10:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Rapid Turnaround, Home-based Saliva Testing for COVID-19

NCT04568122
View directory record Official record
Conditions
Covid19
Interventions
Saliva test kit
Device
Lead sponsor
Stanford University
Other
Eligibility
2 Years and older
Enrollment
1,277 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
2
States / cities
Pleasanton, California • Stanford, California
Source: ClinicalTrials.gov public record
Updated Jan 10, 2024 · Synced Oct 17, 2026, 10:43 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Saliva as Source of Detection for SARS-CoV-2

NCT04424446
View directory record Official record
Conditions
COVID-19
Interventions
Not listed
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years and older
Enrollment
456 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
2
States / cities
Washington D.C., District of Columbia • Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 2, 2021 · Synced Oct 17, 2026, 10:43 AM EDT
Withdrawn Not applicable Interventional

Paradoxical Response to Chest Wall Loading in Mechanically Ventilated Patients

NCT06093958
View directory record Official record
Conditions
ARDS, COVID-19, Mechanical Ventilation Pressure High, Ventilator-Induced Lung Injury
Interventions
Manual loading of the chest wall
Diagnostic Test
Lead sponsor
HealthPartners Institute
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 7, 2024 · Synced Oct 17, 2026, 10:43 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Congenital Heart Initiative-Redefining Outcomes and Navigation to Adult Centered Care

NCT05185232
View directory record Official record
Conditions
Congenital Heart Disease, Comorbidities and Coexisting Conditions
Interventions
Impact of gaps in care/loss to healthcare follow-up
Other
Lead sponsor
Children's National Research Institute
Other
Eligibility
18 Years and older
Enrollment
3,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
16
States / cities
San Francisco, California • Aurora, Colorado • Washington D.C., District of Columbia + 9 more
Source: ClinicalTrials.gov public record
Updated Jan 11, 2022 · Synced Oct 17, 2026, 10:43 AM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

Safety and Immunogenicity Trial of PepGNP-COVID19 Vaccine in Adults

NCT07183709
View directory record Official record
Conditions
COVID-19
Interventions
PepGNP-COVID19, Sterile Water for Injection
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 64 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
3
States / cities
Birmingham, Alabama • Washington D.C., District of Columbia • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated May 15, 2026 · Synced Oct 17, 2026, 10:43 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Non-contact ECG Sensor System for COVID19

NCT04341506
View directory record Official record
Conditions
COVID-19
Interventions
Non-contact ECG
Device
Lead sponsor
Northwestern Medicine
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 9, 2020 · Synced Oct 17, 2026, 10:43 AM EDT
Suspended Early Phase 1 Interventional

Study of Liraglutide (A Weight Loss Drug) in High Risk Obese Participants With Cognitive and Memory Issues

NCT06171152
View directory record Official record
Conditions
Multiple Sclerosis, Long COVID, Long Covid19, Obese, Obesity, Obesity, Morbid, Acute Leukemia in Remission
Interventions
Liraglutide Pen Injector [Saxenda], Medication Diary
Drug · Other
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 40 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 30, 2026 · Synced Oct 17, 2026, 10:43 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Dissecting Human Immune Responses to Infection With Influenza or SARS-CoV-2

NCT06848309
View directory record Official record
Conditions
Influenza, SARS-CoV-2 (COVID-19) Infection, Immune Response of Host
Interventions
Bronchoscopy
Procedure
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 60 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 12, 2026 · Synced Oct 17, 2026, 10:43 AM EDT
Completed No phase listed Observational Results available

The Impact of Vaccination on Severity of Illness in COVID-19

NCT04912700
View directory record Official record
Conditions
Covid19
Interventions
COVID-19 vaccine
Biological
Lead sponsor
Corewell Health East
Other
Eligibility
18 Years and older
Enrollment
11,834 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Royal Oak, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 30, 2021 · Synced Oct 17, 2026, 10:43 AM EDT
Terminated Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Safety, Immunogenicity, and Efficacy of INO-4800 for COVID-19 in Adults at High Risk of SARS-CoV-2 Exposure

NCT04642638
View directory record Official record
Conditions
Coronavirus Infection, Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), COVID-19 Disease
Interventions
INO-4800, CELLECTRA® 2000, Placebo
Drug · Device
Lead sponsor
Inovio Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
1,307 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
16
States / cities
Chandler, Arizona • Phoenix, Arizona • Tempe, Arizona + 12 more
Source: ClinicalTrials.gov public record
Updated Dec 20, 2023 · Synced Oct 17, 2026, 10:43 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Evaluation of the INDICAID™ COVID-19 Rapid Antigen Test

NCT04904510
View directory record Official record
Conditions
Covid19
Interventions
INDICAID™ COVID-19 Rapid Antigen Test
Diagnostic Test
Lead sponsor
University of California, Los Angeles
Other
Eligibility
5 Years and older
Enrollment
297 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Feb 15, 2023 · Synced Oct 17, 2026, 10:43 AM EDT