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ClinicalTrials.gov public records Last synced Oct 17, 2026, 12:09 PM EDT

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

Showing 769–792 of 2,013 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Nidovirales Infections Clear all
Withdrawn Phase 3 Interventional

Outpatient Use of Ivermectin in COVID-19

NCT04530474
View directory record Official record
Conditions
Covid19
Interventions
Ivermectin Pill, Placebo
Drug
Lead sponsor
Temple University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 9, 2026 · Synced Oct 17, 2026, 12:09 PM EDT
Completed No phase listed Observational

Immune Responses to COVID-19 Infection or Vaccination

NCT05379478
View directory record Official record
Conditions
COVID-19
Interventions
Laboratory assessment of antibody profiles
Diagnostic Test
Lead sponsor
Aditxt, Inc.
Industry
Eligibility
18 Years and older
Enrollment
403 participants
Timeline
2020 – 2023
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 7, 2025 · Synced Oct 17, 2026, 12:09 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

COVID-19 Testing Pilot Study

NCT04843878
View directory record Official record
Conditions
Diagnostic Test, Routine, Coronavirus, Diagnoses Disease, Rapid Coronavirus Test
Interventions
COVID Detect
Diagnostic Test
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
326 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 14, 2021 · Synced Oct 17, 2026, 12:09 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

The Efficacy of the 2023-2024 Updated COVID-19 Vaccines Against COVID-19 Infection

NCT06065176
View directory record Official record
Conditions
COVID-19, Vaccine-Preventable Diseases, SARS CoV 2 Infection, Upper Respiratory Tract Infection, Upper Respiratory Disease
Interventions
Novavax COVID-19 vaccine (2023-2024 formula XBB containing), Pfizer COVID-19 mRNA vaccine (2023-2024 formula XBB containing)
Biological
Lead sponsor
Sarang K. Yoon, DO, MOH
Other
Eligibility
18 Years and older
Enrollment
1,188 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jan 28, 2026 · Synced Oct 17, 2026, 12:09 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Digital Applications to Monitor Novel Coronavirus Disease and Response in Colombia - Syndromic and Vaccination Surveillance

NCT05764174
View directory record Official record
Conditions
Vaccination Refusal, COVID-19
Interventions
Factual messages, Narrative message, Mixed message
Behavioral
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
18 Years and older
Enrollment
2,409 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 10, 2023 · Synced Oct 17, 2026, 12:09 PM EDT
Recruiting Phase 3 Interventional

A Study of Secutrelvir in Participants With Coronavirus Disease 2019 (COVID-19) Who Are at High Risk for Progression to Severe Disease

NCT07743580
View directory record Official record
Conditions
SARS-CoV-2
Interventions
Secutrelvir, Placebo
Drug
Lead sponsor
Shionogi
Industry
Eligibility
12 Years and older
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
9
States / cities
Coral Gables, Florida • Miami, Florida • St. Petersburg, Florida + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 9, 2026 · Synced Oct 17, 2026, 12:09 PM EDT
Terminated Phase 1Phase 2 Interventional Results available

"CHANGE COVID-19 Severity"

NCT04941703
View directory record Official record
Conditions
COVID-19 Infection
Interventions
Magnesium Citrate plus probiotic
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 99 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 13, 2023 · Synced Oct 17, 2026, 12:09 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Acceptance and Commitment Therapy Delivered by Automated Software Messaging

NCT04329897
View directory record Official record
Conditions
Hip Osteoarthritis, Knee Osteoarthritis, Mental Stress, Coronavirus
Interventions
Software Messaging
Behavioral
Lead sponsor
University of Iowa
Other
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jul 16, 2020 · Synced Oct 17, 2026, 12:09 PM EDT
Completed Phase 3 Interventional

Double-Blind, Randomized, Placebo-Controlled, Multi-Center Phase 3 Study to Evaluate the Efficacy and Safety of Fostamatinib in COVID-19 Subjects

NCT04629703
View directory record Official record
Conditions
Covid19, SARS (Severe Acute Respiratory Syndrome), SARS Pneumonia, SARS-Associated Coronavirus as Cause of Disease Classified Elsewhere, Pneumonia, Pneumonia, Viral
Interventions
Fostamatinib, Placebo
Drug
Lead sponsor
Rigel Pharmaceuticals
Industry
Eligibility
18 Years to 100 Years
Enrollment
280 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
9
States / cities
Orange, California • Washington D.C., District of Columbia • Hialeah, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Aug 18, 2023 · Synced Oct 17, 2026, 12:09 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

COVID-19 Recovery Study: Symptoms and Biomarkers of Long COVID-19 in People Living With and Without HIV

NCT04958889
View directory record Official record
Conditions
Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV2), HIV
Interventions
No intervention
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
392 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 4, 2024 · Synced Oct 17, 2026, 12:09 PM EDT
Recruiting No phase listed Observational

Impact of COVID-19 Pandemic on Out-of-Pocket Costs, Lost Wages, and Unemployment in Patients With Breast Cancer Undergoing Breast Surgery

NCT04169542
View directory record Official record
Conditions
Breast Ductal Carcinoma In Situ, COVID-19 Infection, Hereditary Breast Carcinoma, Invasive Breast Carcinoma
Interventions
Questionnaire Administration
Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2028
U.S. locations
4
States / cities
Conroe, Texas • Houston, Texas • League City, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 7, 2026 · Synced Oct 17, 2026, 12:09 PM EDT
Not listed Phase 3 Interventional Accepts healthy volunteers

A Phase 3 Randomized Double Blind Efficacy and Safety Study of Oral Polio Vaccine and NA-831 for Covid-19

NCT04540185
View directory record Official record
Conditions
Covid19, SARS (Severe Acute Respiratory Syndrome), SARS-CoV Infection, SARS-CoV-2
Interventions
Biological: oral polio vaccine, Comparable Placebo, NA-831, Comparable Placebo of drug, Combination of oral polio vaccine and NA-831, Comparable Placebo of Oral Polio Vaccine and Placebo of drug
Biological · Drug · Combination Product
Lead sponsor
Biomed Industries, Inc.
Industry
Eligibility
18 Years and older
Enrollment
3,600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
8
States / cities
Los Angeles, California • Orange, California • Palo Alto, California + 4 more
Source: ClinicalTrials.gov public record
Updated Sep 9, 2020 · Synced Oct 17, 2026, 12:09 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Quantification of Binding and Neutralizing Antibody Levels in COVID-19 Vaccinated Health Care Workers Over 1 Year

NCT04910971
View directory record Official record
Conditions
COVID-19 Vaccine, Corona Virus Infection, Vaccine Adverse Reaction, Vaccine Response, Inflammation, Thrombosis
Interventions
Not listed
Lead sponsor
LifeBridge Health
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 2, 2021 · Synced Oct 17, 2026, 12:09 PM EDT
Completed Phase 2 Interventional Results available

Nitric Oxide Gas Inhalation in Severe Acute Respiratory Syndrome in COVID-19

NCT04306393
View directory record Official record
Conditions
SARS (Severe Acute Respiratory Syndrome), Coronavirus
Interventions
Nitric Oxide Gas
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 99 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
4
States / cities
Birmingham, Alabama • Shreveport, Louisiana • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 1, 2026 · Synced Oct 17, 2026, 12:09 PM EDT
Terminated Phase 3 Interventional Results available

Study to Evaluate the Efficacy and Safety of Remdesivir (GS-5734™) Treatment of Coronavirus Disease 2019 (COVID-19) in an Outpatient Setting

NCT04501952
View directory record Official record
Conditions
COVID-19
Interventions
RDV, Placebo to Match RDV
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
12 Years and older
Enrollment
584 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
92
States / cities
Chandler, Arizona • Tucson, Arizona • Eureka, California + 78 more
Source: ClinicalTrials.gov public record
Updated Nov 16, 2021 · Synced Oct 17, 2026, 12:09 PM EDT
Terminated Phase 1Phase 2 Interventional

RAPA-501-Allo Therapy of COVID-19-ARDS

NCT04482699
View directory record Official record
Conditions
Severe COVID-19 Disease
Interventions
RAPA-501-Allo off-the-shelf Therapy of COVID-19, Placebo
Biological · Other
Lead sponsor
Rapa Therapeutics LLC
Industry
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Hackensack, New Jersey
Source: ClinicalTrials.gov public record
Updated Nov 11, 2021 · Synced Oct 17, 2026, 12:09 PM EDT
Completed No phase listed Observational

Baseline Vitamin D Deficiency and COVID-19 Disease Severity

NCT04628000
View directory record Official record
Conditions
Vitamin D Deficiency, Covid19
Interventions
Vitamin D
Other
Lead sponsor
Parkview Medical Center
Other
Eligibility
18 Years to 100 Years
Enrollment
50 participants
Timeline
2020 – 2022
U.S. locations
1
States / cities
Pueblo, Colorado
Source: ClinicalTrials.gov public record
Updated Oct 4, 2022 · Synced Oct 17, 2026, 12:09 PM EDT
Completed Phase 3 Interventional Results available

A Study of the Safety and Efficacy of Ciclesonide in the Treatment of Non-hospitalized COVID-19 Patients

NCT04377711
View directory record Official record
Conditions
COVID-19
Interventions
Ciclesonide, Placebo
Drug
Lead sponsor
Covis Pharma S.à.r.l.
Industry
Eligibility
12 Years to 100 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Feb 9, 2023 · Synced Oct 17, 2026, 12:09 PM EDT
Suspended Not applicable Interventional Accepts healthy volunteers

Changes in Cellular Immune Profile During COVID-19 Infection

NCT04470999
View directory record Official record
Conditions
Covid19, SARS-CoV-2
Interventions
Leukapheresis
Other
Lead sponsor
Serhat Gumrukcu, MD PhD
Other
Eligibility
18 Years to 60 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 24, 2022 · Synced Oct 17, 2026, 12:09 PM EDT
Terminated No phase listed Observational

Serology to COVID-19 for Recording Exposures and Evaluating Needs

NCT04566965
View directory record Official record
Conditions
Covid19, Coronavirus, SARS-CoV Infection
Interventions
SARS-CoV-2
Diagnostic Test
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
18 Years and older
Enrollment
232 participants
Timeline
2020 – 2021
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 22, 2021 · Synced Oct 17, 2026, 12:09 PM EDT
Recruiting No phase listed Observational

Impact of the Coronavirus (COVID-19) on Patients With Cancer

NCT04330521
View directory record Official record
Conditions
Cancer, COVID-19
Interventions
Not listed
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 99 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Apr 27, 2026 · Synced Oct 17, 2026, 12:09 PM EDT
Active, not recruiting Not applicable Interventional

A Rapid Diagnostic of Risk in Hospitalized Patients Using Machine Learning

NCT05893420
View directory record Official record
Conditions
Sepsis, Septicemia, Respiratory Failure, Hemodynamic Instability, COVID-19, Cardiac Arrest, Clinical Deterioration
Interventions
eCARTv5 clinical deterioration monitoring, Standard of care control
Device · Other
Lead sponsor
AgileMD, Inc.
Industry
Eligibility
18 Years and older
Enrollment
30,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
3
States / cities
New Haven, Connecticut • Clearwater, Florida • Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jul 29, 2025 · Synced Oct 17, 2026, 12:09 PM EDT
Completed Not applicable Interventional

Effect of Daily Walnut Consumption on Memory in Subjects With Long-COVID

NCT07429903
View directory record Official record
Conditions
Long-COVID, Brain Fog, Cognition, Memory
Interventions
whole food - walnuts
Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
40 Years and older
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 24, 2026 · Synced Oct 17, 2026, 12:09 PM EDT
Completed Phase 2 Interventional Results available

Convalescent Plasma in the Treatment of COVID 19

NCT04343261
View directory record Official record
Conditions
Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), COVID, Coronavirus
Interventions
Convalescent Plasma
Biological
Lead sponsor
Trinity Health Of New England
Other
Eligibility
18 Years to 90 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Sep 24, 2020 · Synced Oct 17, 2026, 12:09 PM EDT