Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 28, 2026, 8:34 PM EDT

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Showing 1–24 of 179 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Covid-19, Subjects Vaccinated Against Covid-19
Interventions
Change in SARS-CoV-2 Antibody Levels
Other
Lead sponsor
Dr. Sidney J. Stohs
Other
Eligibility
55 Years and older
Enrollment
10,000 participants
Timeline
2021 – 2024
U.S. locations
1
States / cities
Southlake, Texas
Conditions
Covid19
Interventions
Osteopathic Manipulative Treatment (OMT)
Other
Lead sponsor
Western University of Health Sciences
Other
Eligibility
18 Years to 65 Years
Enrollment
92 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Pomona, California
Conditions
COVID-19, Vaccine Hesitancy
Interventions
Health Communication, Health Communication + Structural
Behavioral
Lead sponsor
Marc Kiviniemi
Other
Eligibility
18 Years to 99 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Hazard, Kentucky
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
Completed No phase listed Observational Accepts healthy volunteers

COVID Booster in Pregnancy and Lactation

NCT05543993
Conditions
COVID-19
Interventions
Bivalent COVID-19 Booster
Drug
Lead sponsor
Thomas Jefferson University
Other
Eligibility
13 Years to 55 Years · Female only
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Conditions
COVID-19
Interventions
Remote study participation and self-collection of specimens, Traditional clinical trial participation with clinician-collected specimens
Other
Lead sponsor
Biomedical Advanced Research and Development Authority
Federal
Eligibility
18 Years and older
Enrollment
1,753 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
16
States / cities
Vestavia Hills, Alabama • Mesa, Arizona • Fair Oaks, California + 12 more
Conditions
Immunization
Interventions
Exercise
Behavioral
Lead sponsor
Iowa State University
Other
Eligibility
18 Years to 64 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Ames, Iowa
Conditions
Diabetes Mellitus, Type One, Diabetes Mellitus, Type I, Autoimmune Diabetes, Covid19
Interventions
Bacillus Calmette-Guérin, Saline injection
Biological
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2031
U.S. locations
1
States / cities
Charlestown, Massachusetts
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
Conditions
COVID-19 Immunisation, Influenza Vaccine
Interventions
Patient letter and clinician communication
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
19 Years and older
Enrollment
114,165 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
2
States / cities
Rochester, Minnesota
Completed Phase 4 Interventional Accepts healthy volunteers Results available

BCG Vaccine for Health Care Workers as Defense Against COVID 19

NCT04348370
Conditions
Coronavirus, Coronavirus Infection, Coronavirus as the Cause of Diseases Classified Elsewhere
Interventions
BCG Vaccine, Placebo Vaccine
Biological
Lead sponsor
Texas A&M University
Other
Eligibility
18 Years to 75 Years
Enrollment
659 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
6
States / cities
Los Angeles, California • Bryan, Texas • Houston, Texas
Conditions
SARS-CoV-2 Infection, COVID-19, Maternal Immunization
Interventions
BNT162b2, Placebo
Biological · Other
Lead sponsor
BioNTech SE
Industry
Eligibility
18 Years and older · Female only
Enrollment
726 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
56
States / cities
Birmingham, Alabama • Mobile, Alabama • Glendale, Arizona + 28 more
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Safety and Effects of an Investigational COVID-19 Vaccine as Booster in Healthy People

NCT05541861
Conditions
SARS-CoV-2 Infection, COVID-19
Interventions
BNT162b2 Bivalent (original/Omicron BA.4/BA.5) 30 mcg, BNT162b4 5 mcg, BNT162b4 10 mcg, BNT162b4 15 mcg, BNT162b4 30 mcg, BNT162b2 Monovalent (OMI XBB.1.5) 30 mcg
Biological
Lead sponsor
BioNTech SE
Industry
Eligibility
18 Years and older
Enrollment
383 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
17
States / cities
Tempe, Arizona • Newport Beach, California • San Diego, California + 13 more
Conditions
COVID-19 SARS-CoV-2 Infection, COVID-19, COVID-19 Infection, Coronavirus Disease 2019 (COVID-19), COVID-19 (Coronavirus Disease 2019), COVID-19 Vaccination, COVID-19 Vaccines, SARS-CoV-2 Infection, COVID19, SARS-CoV-2 Infection, COVID-19
Interventions
BNT162b2
Drug
Lead sponsor
Pfizer
Industry
Eligibility
6 Months and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
1
States / cities
New York, New York
Conditions
COVID-19 Immunization, Influenza Immunization
Interventions
RIV (recombinant influenza vaccine), rC19 (dose 1), RIV + rC19 (dose 1), RIV + rC19 (dose 2), RIV + rC19 (dose 3), RIV + rC19 (dose 4), Placebo (0.9% NaCl)
Biological · Other
Lead sponsor
Sanofi
Industry
Eligibility
50 Years and older
Enrollment
980 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
12
States / cities
Phoenix, Arizona • Cerritos, California • Vista, California + 9 more
Completed Not applicable Interventional Accepts healthy volunteers

Text Message Nudges for COVID-19 Vaccination

NCT05037201
Conditions
Covid19
Interventions
Text message
Behavioral
Lead sponsor
Mitesh Patel
Industry
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
St Louis, Missouri
Completed Not applicable Interventional Accepts healthy volunteers Results available

VAX-MOM COVID-19: Increasing Maternal COVID-19 Vaccination

NCT05570630
Conditions
Immunization; Infection, Pregnancy Related, COVID-19
Interventions
VAX-MOM COVID-19 Intervention, Standard of Care
Behavioral · Other
Lead sponsor
University of Rochester
Other
Eligibility
Female only
Enrollment
6,911 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Rochester, New York
Completed Not applicable Interventional Accepts healthy volunteers Results available

Building Engagement Using Financial Incentives Trial - Colorectal Cancer Screening

NCT06124131
Conditions
Health Behavior, Colorectal Cancer, Influenza, COVID-19, Vaccine Hesitancy, Vaccine-Preventable Diseases, Healthcare Patient Acceptance
Interventions
Financial incentive for colorectal cancer screening, Financial incentive for flu shot, Financial incentive for COVID-19 shot
Behavioral
Lead sponsor
Tulane University
Other
Eligibility
45 Years to 75 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
New Orleans, Louisiana
Conditions
COVID-19, COVID-19 Immunisation
Interventions
mRNA-1273
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 99 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
3
States / cities
Decatur, Georgia • Bethesda, Maryland • Seattle, Washington
Completed Not applicable Interventional Accepts healthy volunteers Results available

Improving Pediatric COVID-19 Vaccine Uptake Using an mHealth Tool

NCT05386355
Conditions
COVID-19 Vaccines, Telemedicine, Vaccine Hesitancy, Pediatric ALL
Interventions
COVID-19 Vaccine Uptake App, General Health App
Behavioral · Other
Lead sponsor
IDeA States Pediatric Clinical Trials Network
Network
Eligibility
18 Years and older
Enrollment
1,934 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
15
States / cities
Little Rock, Arkansas • Wilmington, Delaware • Honolulu, Hawaii + 12 more
Completed Not applicable Interventional Accepts healthy volunteers

Planning Message Recommending Same Time/Location as Last Vaccine

NCT05612386
Conditions
COVID-19
Interventions
COVID Booster text messages
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
520,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Conditions
IgM and IgG in Blood
Interventions
Rapid antibody test
Other
Lead sponsor
Texas Cardiac Arrhythmia Research Foundation
Other
Eligibility
16 Years to 85 Years
Enrollment
500 participants
Timeline
2021 – 2022
U.S. locations
1
States / cities
Austin, Texas
Conditions
Influenza, COVID-19
Interventions
Simultaneous Vaccination (Influenza Vaccine and mRNA COVID booster), Sequential Vaccination (Influenza vaccine then mRNA COVID booster), Sequential Vaccination (mRNA COVID booster then Influenza vaccine)
Biological
Lead sponsor
Duke University
Other
Eligibility
6 Years to 64 Years
Enrollment
455 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
8
States / cities
Phoenix, Arizona • Tempe, Arizona • Atlanta, Georgia + 4 more
Completed No phase listed Observational Results available

The Impact of Vaccination on Severity of Illness in COVID-19

NCT04912700
Conditions
Covid19
Interventions
COVID-19 vaccine
Biological
Lead sponsor
Corewell Health East
Other
Eligibility
18 Years and older
Enrollment
11,834 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Royal Oak, Michigan