Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 13, 2026, 7:09 PM EDT

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Showing 265–288 of 2,347 matching trials from the live ClinicalTrials.gov search.
Conditions
COVID-19
Interventions
NDV-HXP-S-KP.2, COVID-19 mRNA Vaccine
Biological
Lead sponsor
CastleVax Inc.
Industry
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
2
States / cities
Colorado Springs, Colorado • Burlington, Massachusetts
Conditions
Online Therapy
Interventions
online survey
Behavioral
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
818 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Seattle, Washington
Conditions
Long COVID, Long Covid19, Post-Acute COVID-19, Post-Acute COVID-19 Syndrome, Long Haul COVID, Long-Haul COVID-19
Interventions
Endourage Targeted Wellness Formula C™, a full hemp flower extract
Combination Product
Lead sponsor
Endourage, LLC
Industry
Eligibility
21 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Denver, Colorado
Conditions
Healthy Volunteer
Interventions
Flucelvax, Fluvirin, Fluzone High Dose
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Healthy
Interventions
PF-07304814
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 55 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Madison, Wisconsin
Conditions
COVID-19
Interventions
ChAdV68-S, ChAdV68-S-TCE, SAM-LNP-S, SAM-LNP-S-TCE, Sodium Chloride, 0.9%
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 99 Years
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
4
States / cities
Decatur, Georgia • St Louis, Missouri • Houston, Texas + 1 more
Conditions
COVID-19 Testing, Children, Preschool, Parents, Child Development, Self-Control, Exercise, Diet, Healthy
Interventions
CHILD back-to-ECE COVID-19 saliva testing, ECE personnel back-to-ECE COVID-19 saliva screening, SAGE garden programming
Behavioral
Lead sponsor
Arizona State University
Other
Eligibility
3 Years and older
Enrollment
1,356 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Phoenix, Arizona
Conditions
Solid Tumor, Adult, Healthy Donors, COVID-19 Donors
Interventions
Not listed
Lead sponsor
BioCytics, Inc.
Industry
Eligibility
5 Years and older
Enrollment
1,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2030
U.S. locations
1
States / cities
Huntersville, North Carolina
Conditions
Cardiovascular Diseases, COVID-19
Interventions
Enoxaparin
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

A Trial Evaluating the Safety and Immunogenicity of 3 COVID-19 SARS-CoV-2 RNA Vaccines in Healthy Adults

NCT05037097
Conditions
COVID-19, SARS-CoV-2 Infection, Corona Virus Infection
Interventions
ARCT-165, ARCT-154, ARCT-021
Biological
Lead sponsor
Arcturus Therapeutics, Inc.
Industry
Eligibility
21 Years to 80 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
2
States / cities
Wichita, Kansas • Kansas City, Missouri
Conditions
COVID-19
Interventions
XBB.1.5 Vaccine (Booster), XBB.1.5 Vaccine (single dose)
Biological
Lead sponsor
Novavax
Industry
Eligibility
18 Years to 54 Years
Enrollment
660 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
30
States / cities
Mobile, Alabama • Sacramento, California • Colorado Springs, Colorado + 26 more
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study of Ad26.COV2.S for the Prevention of SARS-CoV-2-Mediated COVID-19 in Adult Participants

NCT04505722
Conditions
Participants With or Without Stable Co-morbidities Associated With Progression to Severe COVID-19 at Different Stages of the Protocol
Interventions
Ad26.COV2.S, Placebo
Biological · Other
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
18 Years and older
Enrollment
44,325 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
117
States / cities
Birmingham, Alabama • Huntsville, Alabama • Glendale, Arizona + 77 more
Conditions
COVID-19
Interventions
Flu Seasonal /SARS-CoV-2 mRNA Dose 1, Flu Seasonal /SARS-CoV-2 mRNA Dose 2, Flu Seasonal mRNA, SARS-CoV-2 mRNA Dose 1, SARS-CoV-2 mRNA Dose 2, Licensed Flu Seasonal, Licensed COVID-19 mRNA, Placebo
Combination Product · Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 64 Years
Enrollment
106 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
9
States / cities
Anniston, Alabama • Rolling Hills Estates, California • Hialeah, Florida + 5 more
Active, not recruiting No phase listed Observational

A Study of Risk Factors for the COVID-19 Virus Infection

NCT04697927
Conditions
COVID-19 Infections in Cancer Patients
Interventions
Questionnaires
Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
389 participants
Timeline
2020 – 2026
U.S. locations
7
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Conditions
COVID-19, ARDS
Interventions
ExoFlo, Intravenous normal saline
Biological · Other
Lead sponsor
Direct Biologics, LLC
Industry
Eligibility
18 Years to 85 Years
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
6
States / cities
Sheffield, Alabama • Anaheim, California • Sayre, Pennsylvania + 3 more
Withdrawn No phase listed Observational Accepts healthy volunteers

Epidemiologic Assessment of SARS-CoV-2 (COVID-19) Prevalence in Minnesota

NCT04473183
Conditions
Covid19, SARS-CoV Infection, SARS-CoV-2, Corona Virus Infection
Interventions
Specimen Collection, Surveys
Diagnostic Test
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Minneapolis, Minnesota
Conditions
COVID 19, ARDS
Interventions
Stellate Ganglion Block
Drug
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years to 85 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Omaha, Nebraska
Withdrawn No phase listed Observational Accepts healthy volunteers

COVID-19 In-vitro Diagnostic Test and Androgen Receptor Gene Expression

NCT04530500
Conditions
Covid19, Androgen Receptor Gene Overexpression
Interventions
COVID-19 Androgen Sensitivity Test (CoVAST)
Genetic
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years to 90 Years · Male only
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
2
States / cities
Irvine, California
Conditions
COVID-19, Long COVID
Interventions
MouthLabTM
Device
Lead sponsor
Edith Nourse Rogers Memorial Veterans Hospital
Federal
Eligibility
18 Years and older
Enrollment
204 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Bedford, Massachusetts
Conditions
Healthy
Interventions
SARS-CoV-2/Influenza/RSV RT-PCR
Diagnostic Test
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
9,151 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
New Orleans, Louisiana
Conditions
Covid19, SARS-CoV Infection
Interventions
IVIG
Drug
Lead sponsor
Sharp HealthCare
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
San Diego, California
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
Conditions
COVID-19
Interventions
Phlebotomy
Diagnostic Test
Lead sponsor
LifeBridge Health
Other
Eligibility
3 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Long COVID
Interventions
Qigong
Behavioral
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Sacramento, California