Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 14, 2026, 8:25 PM EDT

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Showing 241–264 of 329 matching trials from the live ClinicalTrials.gov search.
Not listed Not applicable Interventional Accepts healthy volunteers

VEText Message Framing and Covid-19 Vaccine Uptake Among at Risk Veterans

NCT04805931
Conditions
Covid19, Vaccine Refusal
Interventions
Behavioral economics
Behavioral
Lead sponsor
VA Puget Sound Health Care System
Federal
Eligibility
18 Years and older
Enrollment
4,311 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Seattle, Washington
Conditions
SARS-CoV2 Infection
Interventions
HDT-301
Biological
Lead sponsor
HDT Bio
Industry
Eligibility
18 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Renton, Washington
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Vaccine Hesitancy in Black/African Americans With Rheumatic Diseases

NCT05822219
Conditions
Rheumatic Diseases, COVID-19 Vaccine, COVID-19, SLE
Interventions
COVID-19 vaccine and booster training, and importance
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 85 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Conditions
Breast Cancer, Lung Cancer, Melanoma (Skin)
Interventions
COVID-19 Vaccine
Biological
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older
Enrollment
500 participants
Timeline
2021 – 2025
U.S. locations
1
States / cities
Kansas City, Kansas
Not listed No phase listed Observational

Long COVID-19 and MAB Study

NCT05508295
Conditions
COVID-19
Interventions
Not listed
Lead sponsor
MultiCare Health System Research Institute
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Tacoma, Washington
Completed Not applicable Interventional Accepts healthy volunteers Results available

CONFIDENT: Supporting Long-term Care Workers During COVID-19

NCT05168800
Conditions
COVID-19
Interventions
Dialogue-Based Webinar, Social Media Website, Enhanced Usual Practice
Behavioral · Other
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years and older
Enrollment
2,634 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Lebanon, New Hampshire
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
Conditions
SARS-CoV-2
Interventions
mRNA-1273, Placebo, mRNA-1273.214
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
6 Months to 11 Years
Enrollment
11,942 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
83
States / cities
Birmingham, Alabama • Phoenix, Arizona • Anaheim, California + 68 more
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Learn About New COVD-19 RNA Vaccine Candidates for New Variants in Healthy Individuals

NCT05997290
Conditions
SARS-CoV-2 Infection, COVID-19
Interventions
BNT162b2 (Omi XBB.1.5), BNT162b2 (Omi JN.1), BNT162b2 (Omi KP.2)
Biological
Lead sponsor
BioNTech SE
Industry
Eligibility
12 Years and older
Enrollment
1,051 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
37
States / cities
Athens, Alabama • Huntsville, Alabama • Mobile, Alabama + 30 more
Completed No phase listed Observational Accepts healthy volunteers

Multisite Observational Maternal and Infant Study for COVID-19

NCT05031468
Conditions
COVID-19
Interventions
Licensed or EUA SARS-CoV-2 vaccine
Biological
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
562 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
10
States / cities
Atlanta, Georgia • Chicago, Illinois • New York, New York + 6 more
Not listed Not applicable Interventional Accepts healthy volunteers

COVID-19 Vaccine Hesitancy Among African Americans

NCT04801030
Conditions
Covid19, Vaccine Refusal, Communication
Interventions
YourCoViDVaxFacts
Behavioral
Lead sponsor
Meharry Medical College
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Nashville, Tennessee
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
Conditions
SARS-CoV-2
Interventions
mRNA-1273
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years and older
Enrollment
234 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
15
States / cities
Mesa, Arizona • San Diego, California • New Haven, Connecticut + 12 more
Conditions
Covid19, SARS-CoV2 Infection
Interventions
mRNA-1273
Biological
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
336 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Tampa, Florida
Conditions
COVID-19
Interventions
BBV152
Biological
Lead sponsor
Ocugen
Industry
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
10
States / cities
Tempe, Arizona • Miami, Florida • Miami Lakes, Florida + 6 more
Completed No phase listed Observational Accepts healthy volunteers

Antibody Detection of Vaccine-Induced Secretory Effects

NCT04895475
Conditions
Covid19, Humoral Acquired Immunodeficiency, Coronavirus, SARS-CoV Infection
Interventions
SARS-CoV-2 vaccine
Behavioral
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
18 Years and older · Female only
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Cincinnati, Ohio
Conditions
Sepsis Syndrome
Interventions
MMR vaccine
Biological
Lead sponsor
Louisiana State University Health Sciences Center in New Orleans
Other
Eligibility
18 Years to 70 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
New Orleans, Louisiana
Conditions
COVID-19, COVID-19 Pandemic
Interventions
COVID-19 walk-up, on-site testing strategy, Community Health Worker (CHW) leading testing navigation and general preventive care reminders, No-cost self-testing kit vending machines
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
Not listed
Enrollment
6,527 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
San Ysidro, California
Conditions
SARS-CoV-2 Infection, COVID-19
Interventions
Biological/Vaccine: BNT162b2 10mcg, BNT162b2 20mcg, BNT162b2 30mcg, Placebo, Biological/Vaccine: BNT162b2 3mcg
Biological · Other
Lead sponsor
BioNTech SE
Industry
Eligibility
6 Months to 15 Years
Enrollment
11,837 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
90
States / cities
Birmingham, Alabama • Phoenix, Arizona • Los Angeles, California + 67 more
Completed Phase 2 Interventional Results available

COVID-19 Protection After Transplant Pilot Study

NCT04969263
Conditions
Kidney Transplant Recipients
Interventions
BNT162b2 vaccine (Pfizer/BioNTech), mRNA-1273 vaccine (Moderna)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Myocarditis
Interventions
Cardiac Imaging
Diagnostic Test
Lead sponsor
Pfizer
Industry
Eligibility
0 Years to 20 Years
Enrollment
319 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2029
U.S. locations
18
States / cities
Los Angeles, California • Madera, California • Hartford, Connecticut + 14 more
Conditions
Herpes Zoster
Interventions
HZ/su, Flu D-QIV, mRNA-1273
Biological · Combination Product
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
2,013 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
46
States / cities
Tempe, Arizona • Oxnard, California • San Diego, California + 40 more
Conditions
IBD, Covid19 Vaccine
Interventions
Serological Assay for SARS-CoV-2
Diagnostic Test
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 85 Years
Enrollment
222 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Madison, Wisconsin
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

A Trial Evaluating the Safety and Effects of an RNA Vaccine ARCT-021 in Healthy Adults

NCT04668339
Conditions
Covid19, SARS-CoV Infection, Corona Virus Infection
Interventions
ARCT-021 single dose priming, ARCT-021 two lower dose priming, ARCT-021 two higher dose priming, Placebo (two doses), priming, Randomized booster, Placebo booster
Biological
Lead sponsor
Arcturus Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
581 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
12
States / cities
Chandler, Arizona • Tucson, Arizona • San Diego, California + 9 more