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ClinicalTrials.gov public records Last synced Oct 25, 2026, 3:08 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 2,349 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: COVID - 19 Clear all
Suspended No phase listed Observational Accepts healthy volunteers

Patients' Attitudes Toward and Experiences With Buprenorphine Treatment

NCT05121428
View directory record Official record
Conditions
Opioid-use Disorder, Acceptability of Health Care, Opioid-Related Disorders
Interventions
Not listed
Lead sponsor
Cambridge Health Alliance
Other
Eligibility
18 Years and older
Enrollment
817 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 11, 2025 · Synced Oct 25, 2026, 3:08 PM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

KIDney Injury in Times of COVID-19 (KIDCOV)

NCT04705766
View directory record Official record
Conditions
SARS-CoV Infection, Covid19, Corona Virus Infection, Acute Kidney Injury, Kidney Injury
Interventions
Urine Collection
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
3
States / cities
San Francisco, California • Chicago, Illinois • Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 11, 2026 · Synced Oct 25, 2026, 3:08 PM EDT
Active, not recruiting Phase 2 Interventional

COVID-FISETIN: Pilot in SARS-CoV-2 of Fisetin to Alleviate Dysfunction and Inflammation

NCT04476953
View directory record Official record
Conditions
Covid19
Interventions
Placebo, Fisetin
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 14, 2025 · Synced Oct 25, 2026, 3:08 PM EDT
Completed Not applicable Interventional

Coronavirus 2019 (COVID-19)- Using Ascorbic Acid and Zinc Supplementation

NCT04342728
View directory record Official record
Conditions
COVID, Corona Virus Infection
Interventions
Ascorbic Acid, Zinc Gluconate, Ascorbic Acid and Zinc Gluconate, Standard of Care
Dietary Supplement · Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
214 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
2
States / cities
Weston, Florida • Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 16, 2021 · Synced Oct 25, 2026, 3:08 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 5, 2021 · Synced Oct 25, 2026, 3:08 PM EDT
Completed No phase listed Observational

Impact on Anxiety and Motivation of COVID-19 and Predictors of Individual Responses

NCT04377100
View directory record Official record
Conditions
Anxiety, Healthy Volunteers
Interventions
Computer task questionnaires
Behavioral
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years and older
Enrollment
2,962 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated May 31, 2025 · Synced Oct 25, 2026, 3:08 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Workforce Serosurveillance to Track Long-term Modifications to COVID-19 Exposure Due to Factors in the Built Environment

NCT04542200
View directory record Official record
Conditions
Covid19
Interventions
Antibody testing
Biological
Lead sponsor
Northwell Health
Other
Eligibility
18 Years and older
Enrollment
40,132 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Great Neck, New York
Source: ClinicalTrials.gov public record
Updated Feb 6, 2023 · Synced Oct 25, 2026, 3:08 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Safety and Acceptability of Q GRFT Nasal Spray for COVID-19 Prophylaxis

NCT05180500
View directory record Official record
Conditions
COVID-19, Pharmacokinetics, Safety
Interventions
Q-Griffithsin, Placebo
Drug
Lead sponsor
Sharon Hillier
Other
Eligibility
18 Years to 55 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 23, 2024 · Synced Oct 25, 2026, 3:08 PM EDT
Terminated Not applicable Interventional Results available

AirFLO2 Treatment for Hypoxia and/or Tachypnea in Patients With COVID-19

NCT04649775
View directory record Official record
Conditions
Corona Virus Infection, Respiratory Rate, Hypoxia, Covid19
Interventions
AirFLO2
Device
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 25, 2022 · Synced Oct 25, 2026, 3:08 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Exploring Optimal Treatment Components for Contactless Online Group-based Behavioral Weight Loss Program

NCT04514900
View directory record Official record
Conditions
Obesity
Interventions
Video Chat +Personalized Feedback, Video Chat + Basic Feedback, Discussion Board for Social Support +Basic Feedback, Discussion Board for Social Support+Personalized Feedback
Behavioral
Lead sponsor
University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
73 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 30, 2021 · Synced Oct 25, 2026, 3:08 PM EDT
Completed Phase 2 Interventional Results available

Clazakizumab (Anti-Interleukin 6 (IL-6) Monoclonal) Compared to Placebo for Coronavirus Disease 2019 (COVID-19)

NCT04348500
View directory record Official record
Conditions
COVID-19
Interventions
Clazakizumab
Drug
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 8, 2024 · Synced Oct 25, 2026, 3:08 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

A Phase 2b, Randomized, Double-blind, Active-controlled Study of Single Dose CVXGA Intranasal COVID-19 Vaccine in Adults

NCT06742281
View directory record Official record
Conditions
COVID-19
Interventions
CVXGA (CVXGA50), COMIRNATY®
Biological
Lead sponsor
CyanVac LLC
Industry
Eligibility
18 Years to 100 Years
Enrollment
432 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
55
States / cities
Anniston, Alabama • Phoenix, Arizona • Chula Vista, California + 44 more
Source: ClinicalTrials.gov public record
Updated Oct 13, 2026 · Synced Oct 25, 2026, 3:08 PM EDT
Terminated Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Treatment for COVID-19 in High-Risk Adult Outpatients

NCT04354428
View directory record Official record
Conditions
COVID-19, SARS-CoV-2
Interventions
Ascorbic Acid, Hydroxychloroquine Sulfate, Azithromycin, Folic Acid, Lopinavir 200 MG / Ritonavir 50 MG [Kaletra]
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 80 Years
Enrollment
289 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
6
States / cities
Chicago, Illinois • New Orleans, Louisiana • Boston, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 8, 2022 · Synced Oct 25, 2026, 3:08 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

COVID-19 Testing Sample Acquisition Throughput and Efficiency

NCT04532411
View directory record Official record
Conditions
SARS-CoV Infection, Respiratory Viral Infection, Personal Protective Equipment, Covid19
Interventions
Personal Protective Testing Booth
Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
Not listed
Enrollment
28,948 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 23, 2023 · Synced Oct 25, 2026, 3:08 PM EDT
Completed Phase 2 Interventional

AT1001 for the Treatment of Long COVID

NCT05747534
View directory record Official record
Conditions
Long COVID, Long COVID-19, Post Acute COVID-19 Syndrome, Post Acute Sequelae of COVID-19
Interventions
Larazotide Acetate, Placebo
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
7 Years to 50 Years
Enrollment
107 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 18, 2026 · Synced Oct 25, 2026, 3:08 PM EDT
Not yet recruiting Phase 2 Interventional

SARS-CoV-2 and Herpesvirus Inhibition for Ending Long COVID Dysfunction

NCT07597902
View directory record Official record
Conditions
Post-acute Sequelae of COVID-19, Long COVID
Interventions
Valacyclovir, Celecoxib, Paxlovid, Placebo
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years to 65 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 19, 2026 · Synced Oct 25, 2026, 3:08 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Safety of Simultaneous mRNA COVID-19 Vaccine With Other Childhood Vaccines in Young Children

NCT06038617
View directory record Official record
Conditions
Fever After Vaccination, Fever, Seizures Fever
Interventions
mRNA COVID-19 Vaccine, Routine Childhood Vaccinations
Biological
Lead sponsor
Duke University
Other
Eligibility
6 Months to 4 Years
Enrollment
347 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
5
States / cities
Oakland, California • Atlanta, Georgia • New York, New York + 2 more
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Oct 25, 2026, 3:08 PM EDT
Completed Phase 4 Interventional

Hydroxychloroquine and Zinc With Either Azithromycin or Doxycycline for Treatment of COVID-19 in Outpatient Setting

NCT04370782
View directory record Official record
Conditions
COVID-19
Interventions
Hydroxychloroquine, Azithromycin, Zinc Sulfate, Doxycycline
Drug
Lead sponsor
St. Francis Hospital, New York
Other
Eligibility
30 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Roslyn, New York
Source: ClinicalTrials.gov public record
Updated Dec 9, 2020 · Synced Oct 25, 2026, 3:08 PM EDT
Completed No phase listed Observational

COVID-19 Quantitative Antibody Titers & Booster Vaccinations

NCT05104359
View directory record Official record
Conditions
COVID-19, COVID-19 Vaccines, Immunogenicity, Vaccine
Interventions
Observational
Other
Lead sponsor
Epividian
Industry
Eligibility
18 Years and older
Enrollment
825 participants
Timeline
2020 – 2022
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 27, 2022 · Synced Oct 25, 2026, 3:08 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of a N95 Respirator vs Cloth Mask on Exercise Capacity During Treadmill Exercise.

NCT04415879
View directory record Official record
Conditions
COVID-19
Interventions
N-95 Respirator, Cloth Face Mask
Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 11, 2025 · Synced Oct 25, 2026, 3:08 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Non-ventilated Prone Positioning in the COVID-19 Population

NCT05957588
View directory record Official record
Conditions
COVID-19, Proning, Oxygenation, Length of Stay
Interventions
Proning group, Control group
Other
Lead sponsor
Baylor St. Luke's Medical Center
Other
Eligibility
18 Years and older
Enrollment
216 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 24, 2023 · Synced Oct 25, 2026, 3:08 PM EDT
Terminated Phase 2 Interventional Results available

Leidos-Enabled Adaptive Protocol (LEAP-CT) for Evaluation of Post-exposure Prophylaxis for Newly-infected COVID-19 Patients

NCT05077969
View directory record Official record
Conditions
2019 Novel Coronavirus Disease, 2019 Novel Coronavirus Infection, 2019-nCoV Disease, 2019-nCoV Infection, COVID-19, COVID-19 Pandemic, COVID-19 Virus Disease, COVID-19 Virus Infection, Covid19, Coronavirus Disease 2019, SARS-CoV2 Infection, SARS-CoV-2 Acute Respiratory Disease
Interventions
Famotidine, Celecoxib, Placebo
Drug
Lead sponsor
Leidos Life Sciences
Industry
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
15
States / cities
Newport Beach, California • Miami, Florida • Atlanta, Georgia + 12 more
Source: ClinicalTrials.gov public record
Updated Jul 9, 2024 · Synced Oct 25, 2026, 3:08 PM EDT
No Longer Available No phase listed Expanded access

ZYESAMI (Aviptadil) Intermediate Population Expanded Access Protocol (SAMICARE)

NCT04453839
View directory record Official record
Conditions
Critical COVID-19 With Respiratory Failure
Interventions
ZYESAMI (aviptadil acetate)
Drug
Lead sponsor
APR Applied Pharma Research s.a.
Other
Eligibility
12 Years to 100 Years
U.S. locations
25
States / cities
Gilbert, Arizona • Scottsdale, Arizona • Baldwin Park, California + 20 more
Source: ClinicalTrials.gov public record
Updated Feb 3, 2023 · Synced Oct 25, 2026, 3:08 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Predict + Protect Study: Exploring the Effectiveness of a Predictive Health Education Intervention on the Adoption of Protective Behaviors Related to ILI

NCT06229444
View directory record Official record
Conditions
Influenza, Influenza A, Influenza B, COVID-19, Respiratory Syncytial Virus (RSV)
Interventions
ILI Predictive Alerts, Reactive Content, and Proactive Content, ILI Predictive Alerts, Reactive Content, Proactive Content, No Intervention
Behavioral
Lead sponsor
Evidation Health
Industry
Eligibility
18 Years and older
Enrollment
17,043 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
San Mateo, California
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 25, 2026, 3:08 PM EDT