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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Vaccination Hesitancy Clear all
Suspended Not applicable Interventional Accepts healthy volunteers

Addressing COVID-19 Vaccine Hesitancy With Muliti-Level Interventions in Appalachia

NCT06505993
View directory record Official record
Conditions
COVID-19, Vaccine Hesitancy
Interventions
Health Communication, Health Communication + Structural
Behavioral
Lead sponsor
Marc Kiviniemi
Other
Eligibility
18 Years to 99 Years
Enrollment
2,250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Hazard, Kentucky
Source: ClinicalTrials.gov public record
Updated Feb 19, 2026 · Synced Jun 11, 2026, 5:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Trusted Messengers: Intervention to Promote COVID-19 Vaccination

NCT04981392
View directory record Official record
Conditions
Covid19, Vaccination
Interventions
Primary care text message outreach to unvaccinated patients and resources to support PCPs
Behavioral
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years and older
Enrollment
21,844 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 25, 2024 · Synced Jun 11, 2026, 5:03 AM EDT
Completed Not applicable Interventional Results available

Development and Testing of ADEPT: A Parent Decision Support for Childhood Vaccinations

NCT04496453
View directory record Official record
Conditions
Vaccine Refusal
Interventions
Childhood vaccination decision support tool
Other
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 17, 2023 · Synced Jun 11, 2026, 5:03 AM EDT
Completed Not applicable Interventional

Improving Vaccine Counseling Skills Among Residents Using Educational Modules and Standardized Patient Encounters

NCT06074237
View directory record Official record
Conditions
Vaccine Refusal, Vaccine-Preventable Diseases, Physician-Patient Relations
Interventions
Immersive resident education, Standardized patient (SP) encounter
Other
Lead sponsor
Corewell Health East
Other
Eligibility
18 Years and older
Enrollment
112 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Royal Oak, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 21, 2026 · Synced Jun 11, 2026, 5:03 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Vaccine Hesitancy in Black/African Americans With Rheumatic Diseases

NCT05822219
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated May 28, 2026 · Synced Jun 11, 2026, 5:03 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Feasibility Trial of a Multi-level Media Production and Social Marketing Campaign to Reduce HPV Vaccine Hesitancy

NCT05860725
View directory record Official record
Conditions
Human Papillomavirus Infection, Vaccination Hesitancy
Interventions
PSA Development, HPV vaccination focused social marketing campaign
Behavioral
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
220 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated May 8, 2024 · Synced Jun 11, 2026, 5:03 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Engaging Church Health Ministries to Decrease Coronavirus Disease-19 Vaccine Hesitancy in Underserved Populations

NCT05541393
View directory record Official record
Conditions
COVID-19
Interventions
Active Intervention Group
Behavioral
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Apr 26, 2023 · Synced Jun 11, 2026, 5:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mobile Health-based Motivational Interviewing to Promote COVID-19 Vaccination

NCT05977192
View directory record Official record
Conditions
Vaccination Hesitancy
Interventions
Standard MI, Intensive MI, MOTIVACC, Ecological momentary assessment (EMA) messages
Behavioral
Lead sponsor
Oklahoma State University
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
2
States / cities
Oklahoma City, Oklahoma • Stillwater, Oklahoma
Source: ClinicalTrials.gov public record
Updated Mar 20, 2025 · Synced Jun 11, 2026, 5:03 AM EDT
Completed Not applicable Interventional

Text4Vax: Text Message Reminders for Pediatric COVID-19 and Influenza Vaccines 2024-25 Season

NCT06603090
View directory record Official record
Conditions
Influenza, COVID-19, Vaccination Hesitancy
Interventions
Text message influenza vaccine reminders, Text message COVID-19 vaccine reminders, Text message influenza and COVID-19 vaccine reminders
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
6 Months to 17 Years
Enrollment
66,147 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
4
States / cities
Itasca, Illinois • New York, New York • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 10, 2025 · Synced Jun 11, 2026, 5:03 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Motivational Interviewing and Vaccine Hesitancy in Children

NCT03934008
View directory record Official record
Conditions
Vaccine Hesitancy
Interventions
MOtivational interviewing Tool to Improve Vaccine AdherencE (MOTIVE)
Other
Lead sponsor
Cedarville University
Other
Eligibility
0 Years to 6 Years
Enrollment
4,191 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Springfield, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 8, 2020 · Synced Jun 11, 2026, 5:03 AM EDT
Completed No phase listed Observational

Parental Perception of COVID-19 Vaccine in Technology Dependent Patients

NCT05084976
View directory record Official record
Conditions
Chronic Respiratory Failure, Tracheostomy Complication, Mechanical Ventilation Complication
Interventions
COVID 19 vaccine counseling
Behavioral
Lead sponsor
Northwell Health
Other
Eligibility
Up to 21 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Lake Success, New York
Source: ClinicalTrials.gov public record
Updated Jul 17, 2022 · Synced Jun 11, 2026, 5:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Discussing COVID-19 Vaccines in Private Facebook Groups

NCT05422898
View directory record Official record
Conditions
COVID-19
Interventions
Gist messages on COVID-19 vaccination, COVID-19 vaccine information
Behavioral
Lead sponsor
George Washington University
Other
Eligibility
18 Years and older
Enrollment
508 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jun 20, 2022 · Synced Jun 11, 2026, 5:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Messaging Strategies to Increase Peer Education on COVID-19 Vaccination and Climate Change

NCT05530044
View directory record Official record
Conditions
Vaccine Hesitancy, Climate Change
Interventions
Social diffusion intervention
Behavioral
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
18 Years and older
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 23, 2024 · Synced Jun 11, 2026, 5:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Reducing COVID-19 Vaccine Hesitancy Among Hispanic Parents

NCT06036134
View directory record Official record
Conditions
Vaccine-Preventable Diseases, COVID-19 Pandemic, Health-Related Behavior, Health Knowledge, Attitudes, Practice, Narration
Interventions
Baseline surveys, Digital Storytelling Intervention, Information Control Intervention
Behavioral
Lead sponsor
Arizona State University
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Jan 25, 2026 · Synced Jun 11, 2026, 5:03 AM EDT
Terminated Not applicable Interventional Results available

COVID-19 Vaccine Hesitancy Counseling Intervention for Pharmacists

NCT05926544
View directory record Official record
Conditions
COVID-19
Interventions
Standard implementation webinar and online training, Virtual facilitation
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 13, 2026 · Synced Jun 11, 2026, 5:03 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Multilevel Intervention of COVID-19 Vaccine Uptake Among Latinos

NCT06156228
View directory record Official record
Conditions
Vaccine Hesitancy
Interventions
Multilevel Intervention
Behavioral
Lead sponsor
San Diego State University
Other
Eligibility
18 Years and older
Enrollment
238 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
2
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jul 3, 2025 · Synced Jun 11, 2026, 5:03 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Connecting Friends and Health Workers to Boost COVID-19 Vaccination in Latino Communities

NCT06128928
View directory record Official record
Conditions
COVID-19, Vaccine
Interventions
REDES, Control
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
900 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 11, 2025 · Synced Jun 11, 2026, 5:03 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Group Intervention on Vaccine Confidence

NCT05891626
View directory record Official record
Conditions
Vaccination Refusal
Interventions
Group intervention
Behavioral
Lead sponsor
MultiCare Health System Research Institute
Other
Eligibility
18 Years and older
Enrollment
429 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Puyallup, Washington
Source: ClinicalTrials.gov public record
Updated Oct 9, 2023 · Synced Jun 11, 2026, 5:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Addressing Vaccine Hesitancy and Increasing COVID-19 Vaccine Uptake Among African American Young Adults in the South

NCT05490329
View directory record Official record
Conditions
COVID-19, Vaccine Uptake
Interventions
Tough Talks COVID
Behavioral
Lead sponsor
Florida State University
Other
Eligibility
18 Years to 29 Years
Enrollment
360 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Mar 27, 2025 · Synced Jun 11, 2026, 5:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Improving Pediatric COVID-19 Vaccine Uptake Using an mHealth Tool

NCT05386355
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Mar 10, 2025 · Synced Jun 11, 2026, 5:03 AM EDT
Completed Not applicable Interventional Results available

Healthy, Immunized Communities Study

NCT03854734
View directory record Official record
Conditions
Vaccine Hesitancy, Communicable Diseases in Children
Interventions
Community Event, Educational Material
Behavioral
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years and older
Enrollment
148 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 11, 2024 · Synced Jun 11, 2026, 5:03 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Advancing Vaccine Equity Through Understanding Vaccine Hesitancy, Barriers, and Trust

NCT05537714
View directory record Official record
Conditions
Vaccine Hesitancy, Structural Barriers, Vaccine Trust
Interventions
Qualitative interviews/focus groups
Behavioral
Lead sponsor
East Carolina University
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Greenville, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 27, 2023 · Synced Jun 11, 2026, 5:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Community-engaged Optimization of COVID-19 Rapid Evaluation And TEsting Experiences

NCT05894655
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Nov 3, 2025 · Synced Jun 11, 2026, 5:03 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Predictors of Measles Vaccine Hesitancy in New York State

NCT07373093
View directory record Official record
Conditions
Measles Vaccination
Interventions
Survey
Other
Lead sponsor
Albany Medical College
Other
Eligibility
Not listed
Enrollment
99 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Albany, New York
Source: ClinicalTrials.gov public record
Updated Jan 27, 2026 · Synced Jun 11, 2026, 5:03 AM EDT