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Showing 1–24 of 35 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Vaccine Acceptance Clear all
Completed No phase listed Observational Accepts healthy volunteers

Perception, Awareness, and Acceptance of Human Papillomavirus Disease and Vaccine Among Parents of Boys Aged 9 to 18 Years

NCT01197079
View directory record Official record
Conditions
Human Papillomavirus (HPV)
Interventions
Survey
Other
Lead sponsor
Ann & Robert H Lurie Children's Hospital of Chicago
Other
Eligibility
9 Years to 26 Years · Male only
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2016
U.S. locations
7
States / cities
Chicago, Illinois • Evanston, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 27, 2025 · Synced Sep 12, 2026, 2:46 PM 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 11, 2026 · Synced Sep 12, 2026, 2:46 PM 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 4, 2026 · Synced Sep 12, 2026, 2:46 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Human Papilloma Viruses (HPV) Vaccine Adherence Community Clinic Study

NCT01908517
View directory record Official record
Conditions
Patient Compliance
Interventions
HPV Vaccine Electronic Reminders
Behavioral
Lead sponsor
East Carolina University
Other
Eligibility
9 Years to 17 Years
Enrollment
522 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
2
States / cities
Greenville, North Carolina • Snow Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated May 24, 2016 · Synced Sep 12, 2026, 2:46 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Vaccine Acceptance in Pregnant Minority Women

NCT01740310
View directory record Official record
Conditions
Pregnancy
Interventions
Maternal Vaccine Education
Behavioral
Lead sponsor
Emory University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
121 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
4
States / cities
Atlanta, Georgia • Decatur, Georgia • Riverdale, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 8, 2015 · Synced Sep 12, 2026, 2:46 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Educational Intervention to Improve Vaccine Acceptance

NCT01385501
View directory record Official record
Conditions
Vaccine Hesitancy
Interventions
Video intervention along with educational hand out
Other
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 60 Years
Enrollment
155 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
2
States / cities
Franklin, Tennessee • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 2, 2015 · Synced Sep 12, 2026, 2:46 PM EDT
Terminated Not applicable Interventional

Conversational Agents to Improve HPV Vaccine Acceptance in Primary Care (ECA-HPV)- Clinical Trial

NCT06367699
View directory record Official record
Conditions
Human Papilloma Virus
Interventions
Usual Care, ECA-HPV App with Clinic Notification and Adolescent Functions Disabled, ECA-HPV App with Clinic Notification Function Enabled, ECA-HPV App with Adolescent Function Enabled, ECA-HPV App with Clinic Notification and Adolescent Functions Enabled
Behavioral
Lead sponsor
Tufts Medical Center
Other
Eligibility
8 Years to 12 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 14, 2025 · Synced Sep 12, 2026, 2:46 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Increasing Human Papillomavirus (HPV) Vaccine Uptake Via General Health Messaging

NCT03759236
View directory record Official record
Conditions
Human Papilloma Virus
Interventions
Health Messaging via SMS, CDC Health Pamphlets
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
21 Years and older · Female only
Enrollment
3 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 31, 2025 · Synced Sep 12, 2026, 2:46 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Hashtag HPV: HPV Vaccine Twitter Education Program

NCT05204030
View directory record Official record
Conditions
Human Papilloma Virus, Vaccine-Preventable Diseases
Interventions
HPV Twitter Education Program - Narrative, HPV Twitter Education Program - Non-Narrative
Other
Lead sponsor
University of Arkansas, Fayetteville
Other
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Fayetteville, Arkansas
Source: ClinicalTrials.gov public record
Updated Jul 26, 2026 · Synced Sep 12, 2026, 2:46 PM EDT
Completed Not applicable Interventional Results available

Developing and Testing a COVID-19 Vaccination Acceptance Intervention

NCT05027464
View directory record Official record
Conditions
COVID-19 Vaccination
Interventions
Moving to COVID-19 Vaccine Acceptance Intervention
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
338,718 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
2
States / cities
North Little Rock, Arkansas • San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 7, 2024 · Synced Sep 12, 2026, 2:46 PM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Assessing Interventions to Increase Tdap Acceptance for Non-birthing Partners in Pregnancy

NCT06135636
View directory record Official record
Conditions
Non-birthing Partner Vaccination in Pregnancy, Tdap - Tetanus, Diphtheria and Acellular Pertussis Vaccination, Vaccine Exposure During Pregnancy
Interventions
Education, Vaccine administration
Behavioral · Biological
Lead sponsor
Women and Infants Hospital of Rhode Island
Other
Eligibility
19 Years to 50 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Sep 12, 2026, 2:46 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Community and Physician Perspectives Regarding Male Youth Human Papillomavirus (HPV) Disease and Vaccination

NCT02897232
View directory record Official record
Conditions
Papillomavirus Infections, Health Behavior, Attitude of Health Personnel, Human Papilloma Virus, Male
Interventions
Survey
Other
Lead sponsor
Louisiana State University Health Sciences Center Shreveport
Other
Eligibility
18 Years and older
Enrollment
386 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
Shreveport, Louisiana
Source: ClinicalTrials.gov public record
Updated Feb 9, 2021 · Synced Sep 12, 2026, 2:46 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Promoting Altruism to Enhance Vaccine Acceptance

NCT04568590
View directory record Official record
Conditions
Vaccine Refusal
Interventions
educational intervention
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
Not listed
Enrollment
510 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 11, 2024 · Synced Sep 12, 2026, 2:46 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Peer Education as a Strategy to Promote Vaccine Acceptance

NCT05875779
View directory record Official record
Conditions
Vaccine Acceptance
Interventions
Peer-led vaccine education intervention
Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
Not listed
Enrollment
154 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 6, 2023 · Synced Sep 12, 2026, 2:46 PM EDT
Recruiting Not applicable Interventional

Addressing Vaccine Acceptance in Carceral Settings Through Community Engagement

NCT05796505
View directory record Official record
Conditions
COVID-19
Interventions
ADVANCE Steering Committee interventions
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
37,122 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Schwenksville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 20, 2025 · Synced Sep 12, 2026, 2:46 PM 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 3, 2026 · Synced Sep 12, 2026, 2:46 PM 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 4, 2026 · Synced Sep 12, 2026, 2:46 PM EDT
Completed No phase listed Observational

Acceptance of Human Papillomavirus Vaccination in Postpartum Women

NCT00730704
View directory record Official record
Conditions
Human Papilloma Virus, HPV, Post Partum
Interventions
Not listed
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 26 Years · Female only
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 4, 2012 · Synced Sep 12, 2026, 2:46 PM EDT
Completed Not applicable Interventional Results available

Effect of Varied Outreach Methods on Appointment Scheduling, Appointment Completion, and Receipt of MMR Vaccination

NCT04567342
View directory record Official record
Conditions
Preventable Disease, Vaccine, Health Care Utilization
Interventions
1 automated message, 2 automated messages, No personal contact attempt, 1 personal contact attempt
Other
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
12 Months to 4 Years
Enrollment
1,312 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 11, 2024 · Synced Sep 12, 2026, 2:46 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Video to Promote HPV Vaccination

NCT02196454
View directory record Official record
Conditions
Vaccine Acceptance, Social Acceptance, Acceptance Processes, Health Behavior, Human Papillomavirus
Interventions
Educational Video with Male or Female Narrator
Other
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
11 Years and older
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
2
States / cities
Flourtown, Pennsylvania • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 31, 2018 · Synced Sep 12, 2026, 2:46 PM 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 27, 2024 · Synced Sep 12, 2026, 2:46 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Brief Interventions to Increase HPV Vaccine Acceptance in School-based Health Centers

NCT01087164
View directory record Official record
Conditions
Human Papillomavirus Infection
Interventions
Compliance, Message sidedness
Behavioral
Lead sponsor
Indiana University
Other
Eligibility
11 Years to 15 Years
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 9, 2014 · Synced Sep 12, 2026, 2:46 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

A Health Belief Model Based Intervention to Increase Human Papilloma Virus (HPV) Vaccination Among College Men

NCT01431079
View directory record Official record
Conditions
HPV Vaccine Acceptability
Interventions
HPV vaccine acceptability
Behavioral
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years to 25 Years · Male only
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 3, 2013 · Synced Sep 12, 2026, 2:46 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Online Games to Help Canadian and U.S. Adults Identify COVID-19 and Vaccine Misinformation: Three Sequential Randomized Studies

NCT07758309
View directory record Official record
Conditions
COVID-19, Vaccine Hesitancy, Health Misinformation, Communication
Interventions
Gamified misinformation refutation quiz, Refutational text (active control)
Behavioral
Lead sponsor
University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
3,637 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Sep 12, 2026, 2:46 PM EDT