Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 23, 2026, 8:49 PM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Completed No phase listed Observational Accepts healthy volunteers

Peripheral Immune System in Individuals With Schizophrenia

NCT05109065
Conditions
Schizophrenia, Schizo Affective Disorder, Schizophreniform Disorders
Interventions
SCID (Standardized Clinical Interview for DSM-V), PSS (Perceived Stress Score), Urine Toxicology Screen, Vitals, Blood Work, PQ-B, COVID Screening, Positive and Negative Syndrome Scale (PANSS)
Diagnostic Test
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 40 Years
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Stanford, California
Conditions
Covid19
Interventions
CoronaCideTM COVID-19 IgM/IgG Rapid Test and Premier Biotech COVID-19 IgM/IgG Rapid Test
Diagnostic Test
Lead sponsor
Texas Cardiac Arrhythmia Research Foundation
Other
Eligibility
Not listed
Enrollment
5,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Austin, Texas
Completed Phase 2 Interventional Accepts healthy volunteers Results available

COVID19 SARS Vaccinations: Systemic Allergic Reactions to SARS-CoV-2 Vaccinations

NCT04761822
Conditions
SARS-CoV Infection, COVID-19, Allergic Reaction, Mast Cell Disorder
Interventions
Moderna COVID-19 Vaccine, Pfizer-BioNTech COVID-19 Vaccine, Placebo
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
5 Years and older
Enrollment
746 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
29
States / cities
Tucson, Arizona • Little Rock, Arkansas • Los Angeles, California + 24 more
Conditions
COVID-19, SARS-CoV-2 Infection, RSV, Influenza
Interventions
Not listed
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
400,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Portland, Oregon
Completed Not applicable Interventional Accepts healthy volunteers

Message Offering Free Round Trip Ride-Share Ride to Pharmacy

NCT05612373
Conditions
COVID-19
Interventions
COVID Booster text messages
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
300,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Conditions
COVID-19
Interventions
Radiation therapy
Radiation
Lead sponsor
Ohio State University
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Columbus, Ohio
Conditions
Long COVID
Interventions
Acupuncture
Procedure
Lead sponsor
Southern California University of Health Sciences
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Whittier, California
Suspended No phase listed Observational Accepts healthy volunteers

A Study to Explore the Role of Gut Flora in COVID-19 Infection

NCT04359836
Conditions
Gut Microbiome, Gastrointestinal Microbiome, COVID, COVID-19, Corona Virus Infection, Coronavirus, Coronaviridae Infections, Coronavirus 19, Coronavirus-19, COVID 19
Interventions
There is no intervention in this study
Other
Lead sponsor
ProgenaBiome
Other
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2027
U.S. locations
1
States / cities
Ventura, California
Completed Not applicable Interventional

DCI COVID-19 Surveillance Project

NCT04780698
Conditions
Covid19
Interventions
SARS-CoV-2 RT-PCR Assay for Detection of COVID-19 Infection
Diagnostic Test
Lead sponsor
Temple University
Other
Eligibility
18 Years to 90 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Conditions
Acute Lung Injury
Interventions
VIB7734, Placebo
Drug
Lead sponsor
Viela Bio
Industry
Eligibility
18 Years to 80 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Cleveland, Ohio
Conditions
COVID-19, Sars-CoV-2 Infection
Interventions
Sky Medical™ Rapid Antigen Test
Diagnostic Test
Lead sponsor
Sky Medical Supplies & Equipments, LLC
Industry
Eligibility
7 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Lake Worth, Florida
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
Conditions
Post-acute Sequelae SARS-CoV-2 Infection (PASC)
Interventions
Active tDCS, Sham tDCS
Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 60 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Minneapolis, Minnesota
Conditions
Long Covid
Interventions
tenofovir disoproxil/emtricitabine, Selzentry, Placebo
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
New York, New York
Conditions
SARS-CoV2, COVID-19
Interventions
VXA-CoV2-3.1, COMIRNATY®, VXA-CoV2-3.3
Biological
Lead sponsor
Vaxart
Industry
Eligibility
18 Years and older
Enrollment
5,485 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
145
States / cities
Anniston, Alabama • Birmingham, Alabama • Mobile, Alabama + 126 more
Conditions
Long COVID
Interventions
RNA Biomarker Blood Test
Diagnostic Test
Lead sponsor
MaxWell Clinic, PLC
Industry
Eligibility
18 Years and older
Enrollment
224 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
2
States / cities
Iowa City, Iowa • Brentwood, Tennessee
Terminated Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Treatment for COVID-19 in High-Risk Adult Outpatients

NCT04354428
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
Conditions
COVID-19
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Covid19
Interventions
Remdesivir, Remdesivir Placebo, Corticosteroid
Biological · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
40
States / cities
Tucson, Arizona • Fresno, California • Loma Linda, California + 28 more
Conditions
COVID-19
Interventions
Not listed
Lead sponsor
National Institute on Aging (NIA)
NIH
Eligibility
18 Years to 99 Years
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
2
States / cities
Baltimore, Maryland
Conditions
COVID-19
Interventions
Dapsone 85 mg PO BID, Placebo 85 mg PO BID
Drug
Lead sponsor
McGill University Health Centre/Research Institute of the McGill University Health Centre
Other
Eligibility
40 Years and older
Enrollment
3,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
5
States / cities
Phoenix, Arizona • High Point, North Carolina • Philadelphia, Pennsylvania + 2 more
Conditions
COVID-19
Interventions
hAd5-S-Fusion+N-ETSD vaccine
Biological
Lead sponsor
ImmunityBio, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
2
States / cities
El Segundo, California • Newport Beach, California
Completed Phase 2 Interventional Results available

Nitrite Supplementation in Long COVID Patients

NCT05618574
Conditions
Long COVID, Cardiorespiratory Fitness
Interventions
140 ml per day of Beet-It nitrate beverage (James White Drinks Ltd., Ipswich, UK), 210 ml of nitrate-depleted placebo
Dietary Supplement
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
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