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Showing 1–24 of 57 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Uptake Vaccination Clear all
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 Sep 8, 2026, 8:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

COVID-19 Vaccine Education at the Point of Testing to Increase Vaccine Uptake in Vulnerable Communities in SE Louisiana

NCT04939506
View directory record Official record
Conditions
Covid19, Vaccine Refusal, Vaccine Hesitancy
Interventions
COVID-19 Vaccine Education at the Point of COVID-19 Testing
Behavioral
Lead sponsor
Xavier University of Louisiana.
Other
Eligibility
18 Years to 99 Years
Enrollment
377 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Sep 8, 2026, 8:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Multicomponent Clinic-based Intervention to Promote COVID-19 Vaccine Intention and Uptake Among Diverse Youth and Adolescents

NCT05722652
View directory record Official record
Conditions
COVID-19 Vaccination
Interventions
CONFIDENCE
Behavioral
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years and older
Enrollment
667 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 13, 2025 · Synced Sep 8, 2026, 8:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Improving HPV Vaccination Rates Among Rural and Native American Adolescents

NCT03801603
View directory record Official record
Conditions
HPV Vaccinations
Interventions
HPV vaccination training and education
Behavioral
Lead sponsor
University of California, Davis
Other
Eligibility
11 Years to 17 Years
Enrollment
263 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Mar 16, 2021 · Synced Sep 8, 2026, 8:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Building Engagement Using Financial Incentives Trial - Colorectal Cancer Screening

NCT06124131
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated May 3, 2025 · Synced Sep 8, 2026, 8:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Engaging Clinical Champions to Improve HPV Vaccination

NCT05736718
View directory record Official record
Conditions
Human Papilloma Virus
Interventions
Champion Announcement Approach Training, Traditional Announcement Approach Training
Behavioral
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
9 Years to 12 Years
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
2
States / cities
Chapel Hill, North Carolina • Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Mar 8, 2026 · Synced Sep 8, 2026, 8:02 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Investigating HPV Vaccination Uptake in Adults Aged 18-35 Seeking Care at a Health Clinic in Rural Mississippi

NCT05658198
View directory record Official record
Conditions
Human Papillomavirus Vaccination
Interventions
Counseling
Behavioral
Lead sponsor
Plan A Health, Inc
Other
Eligibility
18 Years to 35 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Louise, Mississippi
Source: ClinicalTrials.gov public record
Updated Nov 14, 2023 · Synced Sep 8, 2026, 8:02 AM EDT
Completed Not applicable Interventional

Vaccination Uptake (VAX) in PD

NCT02874274
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Standard of Care, Home Visit Program (HVP)
Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
65 Years and older
Enrollment
164 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 9, 2020 · Synced Sep 8, 2026, 8:02 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Girls OnGuard: HPV Vaccination Uptake Among African American Adolescent Females

NCT00813319
View directory record Official record
Conditions
Vaccination
Interventions
Girls OnGuard
Behavioral
Lead sponsor
Emory University
Other
Eligibility
13 Years to 18 Years · Female only
Enrollment
216 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2014
U.S. locations
2
States / cities
Atlanta, Georgia • Decatur, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 11, 2014 · Synced Sep 8, 2026, 8:02 AM 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 8, 2026, 8:02 AM EDT
Completed Not applicable Interventional

Engaging Practices and Communities in the Development of Interventions to Promote HPV Vaccine Uptake

NCT04279964
View directory record Official record
Conditions
Primary Prevention
Interventions
Boot Camp Translation, Control
Behavioral · Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
9 Years to 26 Years
Enrollment
2,400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 14, 2025 · Synced Sep 8, 2026, 8:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Study to Compare the Impact of a School Based HPV Program on Vaccination Uptake and Completion Rates

NCT01526551
View directory record Official record
Conditions
Human Papillomavirus
Interventions
HPV Vaccine and HPV-related Health Education, Reduction of barriers
Other
Lead sponsor
Lake Cumberland District Health Department
Other
Eligibility
12 Years to 20 Years
Enrollment
935 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
2
States / cities
Monticello, Kentucky
Source: ClinicalTrials.gov public record
Updated Mar 5, 2015 · Synced Sep 8, 2026, 8:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Increasing Vaccine Uptake Among Adolescents in the Rural South

NCT04999267
View directory record Official record
Conditions
Vaccine Hesitancy
Interventions
INVEST
Other
Lead sponsor
Duke University
Other
Eligibility
Not listed
Enrollment
2 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
2
States / cities
Durham, North Carolina • Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Dec 9, 2025 · Synced Sep 8, 2026, 8:02 AM EDT
Completed Not applicable Interventional Results available

Behavioral Economics to Improve Flu Vaccination Using EHR Nudges

NCT06057727
View directory record Official record
Conditions
Behavior, Health, Flu, Flu Vaccination
Interventions
Pre-visit patient text messaging, Default pended order, Monthly peer comparison feedback, High risk bidirectional pre-visit text messaging
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
50 Years and older
Enrollment
80,039 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
2
States / cities
Philadelphia, Pennsylvania • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Apr 26, 2025 · Synced Sep 8, 2026, 8:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Improving Vaccinations for Young Children (IVY)

NCT04203277
View directory record Official record
Conditions
Vaccination Refusal
Interventions
IVY
Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
Not listed
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 23, 2026 · Synced Sep 8, 2026, 8:02 AM EDT
Completed Not applicable Interventional

Increasing Human Papillomavirus Vaccine Uptake in Low-Income, Ethnic Minority Adolescents in Los Angeles County

NCT02067507
View directory record Official record
Conditions
Human Papilloma Virus Infection
Interventions
Tailored education and referral, Staff training and patient reminders, Clinic-level reminder systems
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
9 Years to 70 Years
Enrollment
53,414 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2019
U.S. locations
2
States / cities
Alhambra, California • San Fernando, California
Source: ClinicalTrials.gov public record
Updated Oct 24, 2019 · Synced Sep 8, 2026, 8:02 AM EDT
Completed Not applicable Interventional Results available

Improving COVID-19 Vaccine Uptake in Nursing Homes

NCT04732819
View directory record Official record
Conditions
COVID-19 Vaccines
Interventions
High touch multi-pronged behavioral intervention
Behavioral
Lead sponsor
Brown University
Other
Eligibility
Not listed
Enrollment
23,768 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
4
States / cities
Tampa, Florida • Sykesville, Maryland • Elkhorn, Nebraska + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 4, 2021 · Synced Sep 8, 2026, 8:02 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Impact of Financial Incentives

NCT05744960
View directory record Official record
Conditions
Human Papilloma Virus
Interventions
Communication training, financial Incentive
Behavioral
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
9 Years to 12 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Sep 8, 2026, 8:02 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

I Vaccinate: Testing Multi-Level Interventions to Improve HPV Vaccination

NCT04452526
View directory record Official record
Conditions
Cervical Carcinoma, Human Papillomavirus-Related Malignant Neoplasm
Interventions
Best Practice, Educational Intervention, Questionnaire Administration, Reminder
Other
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
11 Years and older
Enrollment
372 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2027
U.S. locations
4
States / cities
Lexington, Kentucky • Columbus, Ohio • Charlottesville, Virginia + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 14, 2026 · Synced Sep 8, 2026, 8:02 AM 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 8, 2026, 8:02 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

The Role of Dentists in Human Papillomavirus Vaccination

NCT04757701
View directory record Official record
Conditions
HPV
Interventions
Social Behavioral surveys, interviews, and focus groups
Other
Lead sponsor
East Carolina University
Other
Eligibility
18 Years to 100 Years
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Winterville, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 26, 2023 · Synced Sep 8, 2026, 8:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

COVID-19 Vaccine Messaging, Part 1

NCT04460703
View directory record Official record
Conditions
Vaccination, COVID-19
Interventions
Control message, Baseline message, Personal freedom message, Economic freedom message, Self-interest message, Community interest message, Economic benefit message, Guilt message, Embarrassment message, Anger message, Trust in science message, Not bravery message
Other
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
4,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated May 4, 2022 · Synced Sep 8, 2026, 8:02 AM EDT
Completed Not applicable Interventional Results available

Views on COVID-19 and Vaccination

NCT04706403
View directory record Official record
Conditions
Covid19
Interventions
Communication from a physician about the COVID-19 Vaccine
Behavioral
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years and older
Enrollment
756 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 23, 2022 · Synced Sep 8, 2026, 8:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

PREVENT HPV-Related Cancers - BootCamp Translation

NCT06290206
View directory record Official record
Conditions
HPV Vaccination, Vaccine; Uptake, Vaccination; Series Completion
Interventions
PREVENT - BCT
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 17, 2025 · Synced Sep 8, 2026, 8:02 AM EDT