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ClinicalTrials.gov public records Last synced Oct 17, 2026, 8:19 AM EDT

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Showing 1–24 of 30 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Tailored Vaccine Messaging Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Making Decisions About the Measles-Mumps-Rubella Vaccine

NCT01369394
View directory record Official record
Conditions
Measles, Mumps, Rubella, MMR Vaccination
Interventions
Behavioral: Computer-based tailoring system
Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
79 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 10, 2014 · Synced Oct 17, 2026, 8:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Tailoring of Vaccine-Focused Messages: Disease Salience

NCT03002324
View directory record Official record
Conditions
Human Papillomavirus
Interventions
Baseline Survey, Current CDC Message, Cervical Cancer Message, Control Message, Post-Intervention Survey
Behavioral
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
1,320 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated May 10, 2017 · Synced Oct 17, 2026, 8:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Tailoring of Vaccine-Focused Messages: Moral Foundations

NCT02851459
View directory record Official record
Conditions
Childhood Vaccinations
Interventions
Baseline Survey, Pre-intervention Survey, Morally Congruent Message, Morally Non-Congruent Message, Control Message, Post-Intervention Survey
Behavioral
Lead sponsor
Emory University
Other
Eligibility
18 Years to 50 Years
Enrollment
850 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 10, 2017 · Synced Oct 17, 2026, 8:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

An Evaluation of Tailored Messages to Address Parental Questions About HPV Vaccination

NCT03628885
View directory record Official record
Conditions
Human Papilloma Virus Vaccines, Attitude to Health
Interventions
Top Concern Tailored Intervention, All Concerns Tailored Intervention
Behavioral
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older · Female only
Enrollment
908 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Apr 2, 2019 · Synced Oct 17, 2026, 8:19 AM EDT
Completed Not applicable Interventional Results available

Effect of Varied Outreach Methods on Appointment Scheduling, Appointment Completion, and Receipt of COVID-19 Vaccination

NCT04904744
View directory record Official record
Conditions
Health Care Utilization, Vaccine Preventable Disease
Interventions
Low tailored message, No message, Low tailored message plus COVID-19 vaccine message
Other
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
12 Years to 17 Years
Enrollment
1,235 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 28, 2024 · Synced Oct 17, 2026, 8:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Getting to Yes, Michigan! (G2YMI)

NCT05096260
View directory record Official record
Conditions
COVID-19 Vaccines, COVID-19 Pandemic
Interventions
Motivational Interviewing based SMS/MMS and web content
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
1,180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated May 1, 2026 · Synced Oct 17, 2026, 8:19 AM EDT
Active, not recruiting Phase 3 Interventional Accepts healthy volunteers

PREVENT HPV -Related Cancers Trial

NCT07217145
View directory record Official record
Conditions
HPV Vaccination, Uptake Vaccination, Series Completion
Interventions
PREVENT
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
1,455 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 5, 2026 · Synced Oct 17, 2026, 8:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

CATCH-UP Vaccines: Engaged Approaches to Testing in Community/Healthcare Settings for the Underserved (COVID-19)

NCT05236270
View directory record Official record
Conditions
COVID-19, Vaccine Refusal
Interventions
Text Message, Motivational Interviewing, Electronic Educational Message with Tailored Questions/Prompts
Behavioral
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 100 Years
Enrollment
312 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated May 22, 2024 · Synced Oct 17, 2026, 8:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Vax Facts Human Papillomavirus (HPV): Study of a Computer-based Tailoring System and Mothers' Intentions to Vaccinate Their Daughters Against HPV

NCT01143142
View directory record Official record
Conditions
Human Papillomavirus, Prevention
Interventions
Computer-based tailoring system
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older · Female only
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 22, 2014 · Synced Oct 17, 2026, 8:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Chatbot Intervention for Reducing HPV Vaccine Hesitancy

NCT05959564
View directory record Official record
Conditions
Cervical Cancer, Anal Cancer, Penile Cancer
Interventions
Personalized Chatbot Intervention, Non-Personalized Chatbot Intervention, No Chatbot Control
Behavioral
Lead sponsor
University of Maryland, College Park
Other
Eligibility
18 Years and older
Enrollment
456 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
College Park, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 21, 2024 · Synced Oct 17, 2026, 8:19 AM EDT
Completed Not applicable Interventional Results available

RADx-UP Phase 3D (Oregon Saludable: Juntos Podemos)

NCT05910879
View directory record Official record
Conditions
Health Behavior, Health Care Utilization, Vaccine Hesitancy
Interventions
Self-Affirmation Implementation Intentions (SAII) Intervention, Promotores de Salud (Health Education)
Behavioral
Lead sponsor
University of Oregon
Other
Eligibility
18 Years and older
Enrollment
625 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Oct 17, 2026, 8:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

MiVacunaLA: an Intervention to Improve COVID-19 Vaccination Behaviors Among Latinos

NCT05234372
View directory record Official record
Conditions
COVID-19 Pandemic
Interventions
mivacunaLA
Behavioral
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years to 75 Years
Enrollment
468 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
2
States / cities
Los Angeles, California • Malibu, California
Source: ClinicalTrials.gov public record
Updated Dec 16, 2025 · Synced Oct 17, 2026, 8:19 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

HPV Ends Here: Increasing Uptake of the HPV Vaccine

NCT06831929
View directory record Official record
Conditions
HPV Vaccine
Interventions
Intervention Arm
Behavioral
Lead sponsor
University of California, Davis
Other
Eligibility
10 Years to 12 Years
Enrollment
2,232 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Oct 17, 2026, 8:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Educational Intervention to Improve HPV Vaccination Decision Quality

NCT02797054
View directory record Official record
Conditions
HPV Vaccination Decision Quality
Interventions
Tailored educational materials, Untailored educational materials, Usual care
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 75 Years
Enrollment
1,205 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 21, 2018 · Synced Oct 17, 2026, 8:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Conversations With AI Chatbots Increase Short-Term Vaccine Intentions But Do Not Outperform Standard Public Health Messaging

NCT07132125
View directory record Official record
Conditions
HPV Vaccination Intent
Interventions
Default-style LLM chatbot, Conversational-style LLM chatbot, Public health informational materials
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
930 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 20, 2025 · Synced Oct 17, 2026, 8:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Educational Intervention to Minimize Disparities in Humanpapillomavirus Vaccination

NCT02145156
View directory record Official record
Conditions
HPV Vaccination Status
Interventions
Tailored educational materials, Untailored educational materials, Survey-only
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 75 Years
Enrollment
1,294 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 26, 2017 · Synced Oct 17, 2026, 8:19 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 4, 2025 · Synced Oct 17, 2026, 8:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Improving Vaccine Acceptance Through EHR Integrated Patient- and Provider-Facing Decision Support

NCT06482450
View directory record Official record
Conditions
Vaccine Hesitancy, Vaccine Refusal
Interventions
LetsTalkShots (patient-facing CDS), LetsTalkShots (provider-facing CDS), Appointment Reminder Message
Other
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
Not listed
Enrollment
3,600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 4, 2026 · Synced Oct 17, 2026, 8:19 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Tailored Vaccine Messaging for Parents/Caregivers of Adolescents

NCT07878442
View directory record Official record
Conditions
Vaccine Confidence, Adolescent Vaccination, Vaccine Uptake
Interventions
Tailored Vaccine Messaging, Standard Vaccine Message
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Oct 16, 2026 · Synced Oct 17, 2026, 8:19 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

A Tailored, Health Communication Intervention for HPV Vaccine Hesitant Families

NCT04380623
View directory record Official record
Conditions
Human Papilloma Virus, HPV-Related Carcinoma, Vaccine Refusal, Parents, Program, Communication
Interventions
Mobile Phone-Based Web-Page: HPV vaccine
Behavioral
Lead sponsor
Meharry Medical College
Other
Eligibility
18 Years and older
Enrollment
244 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 8, 2021 · Synced Oct 17, 2026, 8:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Adolescent Vaccination Kiosk Project

NCT01622608
View directory record Official record
Conditions
Adolescent Vaccination Status
Interventions
Vaccine Information Kiosk
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
3
States / cities
Centennial, Colorado • Thornton, Colorado • Wheat Ridge, Colorado
Source: ClinicalTrials.gov public record
Updated Dec 24, 2013 · Synced Oct 17, 2026, 8:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Integrating a Health Information Technology System for Primary and Secondary Cervical Cancer Prevention

NCT03346915
View directory record Official record
Conditions
Human Papilloma Virus, Cervical Cancer, Human Papillomavirus Infection, Oropharyngeal Cancer, Vaginal Cancer, Vulvar Cancer, Anal Cancer, Penile Cancer
Interventions
WoW and BNI
Behavioral
Lead sponsor
Boston Medical Center
Other
Eligibility
9 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 9, 2019 · Synced Oct 17, 2026, 8:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

PREVENT Pilot HPV - Related Cancers Trial

NCT06738355
View directory record Official record
Conditions
HPV Vaccination, Uptake Vaccination, Series Completion
Interventions
PREVENT
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
335 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 5, 2026 · Synced Oct 17, 2026, 8:19 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

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

NCT04805931
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jun 28, 2021 · Synced Oct 17, 2026, 8:19 AM EDT