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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 Testing Clear all
Completed No phase listed Observational

Surveillance of Individuals Following SARS-CoV-2 Infection

NCT04383444
View directory record Official record
Conditions
COVID-19
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 31, 2023 · Synced Jun 10, 2026, 2:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Longitudinal COVID-19 Antibody Testing in Indiana University Undergraduate Students

NCT04620798
View directory record Official record
Conditions
SARS-CoV-2, Serology, Students
Interventions
Immediate vs. delayed provision of antibody test results
Behavioral
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 100 Years
Enrollment
1,076 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Bloomington, Indiana
Source: ClinicalTrials.gov public record
Updated Jan 30, 2022 · Synced Jun 10, 2026, 2:24 PM EDT
Completed Phase 2 Interventional Results available

To Evaluate the Safety and Efficacy of TQ Formula in Covid-19 Participants

NCT04914377
View directory record Official record
Conditions
Covid19
Interventions
TQ Formula/Tab
Drug
Lead sponsor
Novatek Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
3
States / cities
San Diego, California • Hialeah, Florida • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 13, 2024 · Synced Jun 10, 2026, 2:24 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

You and Me Healthy: Test to Treat

NCT07126392
View directory record Official record
Conditions
COVID - 19
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
8 Years and older
Enrollment
913 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
2
States / cities
Merced, California • Greenville, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 16, 2025 · Synced Jun 10, 2026, 2:24 PM EDT
Active, not recruiting Not applicable Interventional

RADx-UP Phase 3D (Oregon Saludable: Juntos Podemos)

NCT05910879
View directory record Official record
Conditions
Health Behavior, Health Care Utilization, Vaccine Hesitancy
Interventions
Self-Affirmation Implementation Intentions (SAII) Intervention, Promotores de Salud (Health Education)
Behavioral
Lead sponsor
University of Oregon
Other
Eligibility
18 Years and older
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Dec 5, 2024 · Synced Jun 10, 2026, 2:24 PM EDT
Completed Not applicable Interventional Results available

SCALE-UP Utah II: Community-Academic Partnership to Address COVID-19 Text Message Study

NCT05533918
View directory record Official record
Conditions
COVID-19
Interventions
Text-Messaging (TM), Patient Navigation (PN)
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
31,439 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jan 15, 2025 · Synced Jun 10, 2026, 2:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Minnesota COVID-19 Testing Project

NCT04568889
View directory record Official record
Conditions
Covid19, Infectious Disease
Interventions
A $10 Survey Incentive, A $20 Survey Incentive, Emphasis of Government Involvement, Emphasis of Academic Researchers Involvement, Cost-Benefit Frame, Duty Frame, Racial/Ethnic Frame, No Messaging
Behavioral
Lead sponsor
Harvard University
Other
Eligibility
18 Years and older
Enrollment
561 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
10
States / cities
Bloomington, Minnesota • Columbia Heights, Minnesota • Eden Prairie, Minnesota + 5 more
Source: ClinicalTrials.gov public record
Updated Oct 13, 2022 · Synced Jun 10, 2026, 2:24 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Longitudinal At Home Smell Testing to Detect Infection by SARS-CoV-2

NCT05040659
View directory record Official record
Conditions
Anosmia, Asymptomatic COVID-19, COVID-19 Respiratory Infection, Influenza, Healthy, PASC Post Acute Sequelae of COVID 19
Interventions
AROMHA Longitudinal Smell Test
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 100 Years
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 5, 2026 · Synced Jun 10, 2026, 2:24 PM EDT
Completed No phase listed Observational

Assessing Performance of the Testing Done Simple Covid 19 Antigen Test

NCT05610449
View directory record Official record
Conditions
COVID-19
Interventions
Testing Done Simple SARS CoV-2 Antigen Test
Diagnostic Test
Lead sponsor
Testing Done Simple
Industry
Eligibility
18 Years and older
Enrollment
171 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
2
States / cities
Queens, New York
Source: ClinicalTrials.gov public record
Updated May 14, 2023 · Synced Jun 10, 2026, 2:24 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Beaumont Health Large-scale Automated Serologic Testing for COVID-19

NCT04349202
View directory record Official record
Conditions
COVID-19, Coronavirus Infection, Severe Acute Respiratory Syndrome Coronavirus 2
Interventions
EUROIMMUN assay
Diagnostic Test
Lead sponsor
Corewell Health East
Other
Eligibility
18 Years and older
Enrollment
20,614 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
2
States / cities
Royal Oak, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 4, 2021 · Synced Jun 10, 2026, 2:24 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

COVID-19 Community Research Partnership

NCT04342884
View directory record Official record
Conditions
Coronavirus, COVID
Interventions
Not listed
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
Not listed
Enrollment
61,410 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
11
States / cities
New Orleans, Louisiana • Baltimore, Maryland • Columbia, Maryland + 6 more
Source: ClinicalTrials.gov public record
Updated Mar 29, 2023 · Synced Jun 10, 2026, 2:24 PM EDT
Terminated Not applicable Interventional Results available

ImmunoCARE: Rapid, Accurate COVID Testing to Reduce Hospitalization of Immunocompromised Individuals

NCT05655546
View directory record Official record
Conditions
Immunodeficiency, Immunosuppression, HIV Infections, Graft Versus Host Disease, Leukemia, Lymphoma, Cancer, Multiple Myeloma, Transplant, Age-Related Immunodeficiency
Interventions
Access to Cue Health COVID-19 Remote testing and treatment for COVID-19
Other
Lead sponsor
Scripps Translational Science Institute
Other
Eligibility
18 Years to 120 Years
Enrollment
2,117 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Aug 7, 2025 · Synced Jun 10, 2026, 2:24 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

TekiTrust Tests to Determine the Level of SARS-COV-2/COVID-19 Neutralizing Antibodies in the Blood

NCT05338762
View directory record Official record
Conditions
SARS-CoV2 Infection
Interventions
Not listed
Lead sponsor
MiCo BioMed Co., Ltd.
Industry
Eligibility
18 Years and older
Enrollment
218 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
5
States / cities
Starkville, Mississippi • Englewood Cliffs, New Jersey • Cincinnati, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 10, 2022 · Synced Jun 10, 2026, 2:24 PM EDT
Completed No phase listed Observational Results available

Validation of a Rapid Quantitative Test for Loss of Smell in COVID-19 Subjects

NCT04431908
View directory record Official record
Conditions
COVID-19
Interventions
olfactory device
Device
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
1,320 participants
Timeline
2020
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 1, 2021 · Synced Jun 10, 2026, 2:24 PM EDT
Completed Not applicable Interventional Results available

SARS-CoV-2 and Influenza A/B in Point-of-Care and Non-Laboratory Settings

NCT06191393
View directory record Official record
Conditions
SARS-CoV-2 Infection, Influenza A, Influenza B
Interventions
Aptitude Medical Systems Metrix COVID/Flu Test
Diagnostic Test
Lead sponsor
Aptitude Medical Systems
Industry
Eligibility
2 Years and older
Enrollment
614 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
3
States / cities
Trussville, Alabama • Goleta, California • Chelmsford, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 12, 2025 · Synced Jun 10, 2026, 2:24 PM EDT
Completed Not applicable Interventional Results available

Vale+ Tu Salud: Corner-Based Randomized Trial to Test a Latino Day Laborer Program Adapted to Prevent COVID-19

NCT05248399
View directory record Official record
Conditions
COVID-19
Interventions
COVID-19 Group Problem Solving, Standard of Care
Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 5, 2023 · Synced Jun 10, 2026, 2:24 PM EDT
Completed No phase listed Observational

A Longitudinal Study of COVID-19 Positive Patients Testing Nasal Swabs and Collecting Blood Samples for Research

NCT04327804
View directory record Official record
Conditions
SARS-CoV Infection
Interventions
Odd/Even birth year intervention groups
Diagnostic Test
Lead sponsor
UnitedHealth Group
Industry
Eligibility
Not listed
Enrollment
139 participants
Timeline
2020
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Apr 10, 2022 · Synced Jun 10, 2026, 2:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Availability of COVID-19 Testing on Choice to Isolate and Socially Distance

NCT04459520
View directory record Official record
Conditions
COVID-19
Interventions
Positive COVID Test Result - Hypothetical Scenario, Negative COVID Test Result - Hypothetical Scenario, Unavailable COVID Test Result - Hypothetical Scenario
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 110 Years
Enrollment
1,400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 19, 2020 · Synced Jun 10, 2026, 2:24 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

PREDICT: A PBRN Feasibility Study on COVID-19 Screening in Dental Practice

NCT05123742
View directory record Official record
Conditions
COVID-19 Infection
Interventions
COVID-19 Testing
Diagnostic Test
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Newark, New Jersey
Source: ClinicalTrials.gov public record
Updated Oct 4, 2023 · Synced Jun 10, 2026, 2:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Promoting Engagement and COVID-19 Testing for Health

NCT06141850
View directory record Official record
Conditions
COVID-19
Interventions
COVID-19 Test Reporting, Personalized Nudges via Text Messaging, Non-personalized Nudges via Text Messaging
Behavioral
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
290 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Feb 22, 2026 · Synced Jun 10, 2026, 2:24 PM EDT
Not listed No phase listed Observational

FINDER® Instrument and FINDER® FLU A/B, RSV, SARS-CoV-2 Test Clinical Evaluation Protocol

NCT05928507
View directory record Official record
Conditions
Influenza A, Influenza Type B, SARS CoV 2 Infection, RSV Infection
Interventions
Diagnostic Test for identification of influenzas A, influenzas B, RSV and SARS-CoV-2 infections
Diagnostic Test
Lead sponsor
Baebies, Inc.
Industry
Eligibility
Not listed
Enrollment
2,500 participants
Timeline
2023 – 2024
U.S. locations
1
States / cities
Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 2, 2023 · Synced Jun 10, 2026, 2:24 PM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

Evaluation of Home Use COVID-19 Frequent Antigen Testing and Data Reporting

NCT05884515
View directory record Official record
Conditions
COVID-19 Respiratory Infection
Interventions
SARS CoV-2 antigen tests
Diagnostic Test
Lead sponsor
IDX20 Inc
Industry
Eligibility
12 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Chelsea, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 4, 2023 · Synced Jun 10, 2026, 2:24 PM EDT
Not listed Not applicable Interventional

Performance Evaluation of LumiraDx COVID-19 (SARS-CoV-2) Ag Test

NCT04557046
View directory record Official record
Conditions
Covid19
Interventions
Nasal Swab, Nasopharyngeal swab, Throat swab, Fingerstick, Saliva specimen
Diagnostic Test
Lead sponsor
LumiraDx UK Limited
Industry
Eligibility
Not listed
Enrollment
1,134 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
7
States / cities
Altamonte Springs, Florida • Kissimmee, Florida • Atlanta, Georgia + 4 more
Source: ClinicalTrials.gov public record
Updated Dec 25, 2023 · Synced Jun 10, 2026, 2:24 PM EDT
Not listed Not applicable Interventional

Inhalation of KELEA Excellerated Water in Covid-19 Infected Individuals

NCT04490824
View directory record Official record
Conditions
Covid19
Interventions
KELEA Excellerated Water, Water Without an Elevated Level of KELEA
Device
Lead sponsor
Institute of Progressive Medicine
Other
Eligibility
Not listed
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
South Pasadena, California
Source: ClinicalTrials.gov public record
Updated Oct 3, 2023 · Synced Jun 10, 2026, 2:24 PM EDT