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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 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 Jul 22, 2026, 11:55 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 Jul 22, 2026, 11:55 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 Jul 22, 2026, 11:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The STOP-HPV Trial 1: Communication Intervention

NCT03599557
View directory record Official record
Conditions
Immunization, Vaccination
Interventions
STOP-HPV communication intervention
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
11 Years to 17 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Itasca, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 11, 2024 · Synced Jul 22, 2026, 11:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Boosting COVID-19 Vaccination Uptake Using Wastewater Surveillance

NCT06698497
View directory record Official record
Conditions
Vaccine Uptake
Interventions
Communication Campaign
Behavioral
Lead sponsor
Syracuse University
Other
Eligibility
Not listed
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Syracuse, New York
Source: ClinicalTrials.gov public record
Updated Sep 14, 2025 · Synced Jul 22, 2026, 11:55 AM EDT
Recruiting Not applicable Interventional

PCOM2 - The Physician Communication Intervention, Version 2.0

NCT05336240
View directory record Official record
Conditions
HPV Infection, Preventive Health Services
Interventions
Physician Communication 2 Virtual (PCOM2-virtual), Physician Communication Standard (PCOM-standard)
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
9 Years to 17 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
2
States / cities
Aurora, Colorado • Wichita, Kansas
Source: ClinicalTrials.gov public record
Updated Aug 25, 2024 · Synced Jul 22, 2026, 11:55 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

A Study to Evaluate Community-Based Measures to Increase RSV Vaccine Use Among Latino Adults

NCT07171164
View directory record Official record
Conditions
Older Adults Without Any Specific Clinical Condition, Social Networks, RSV Immunization, Vaccine Uptake
Interventions
Motivate Aim: CHW text message reminders and counseling, Motivate Aim: CHW text message reminders only, Activate Aim: CHW text message reminders and counseling, Activate Aim: CHW text message reminders only
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
750 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 29, 2025 · Synced Jul 22, 2026, 11:55 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 Jul 22, 2026, 11:55 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Can Stories Encourage the Elderly to Vaccinate? Combining Viewer-tailored Personal Narrative Videos With Informational Videos to Improve Vaccine Uptake Among Older Adults

NCT06890403
View directory record Official record
Conditions
Vaccination
Interventions
Informational Animation Video, Personal Narrative Video
Behavioral
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
50 Years and older
Enrollment
6,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 12, 2026 · Synced Jul 22, 2026, 11:55 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Increasing COVID-19, Influenza, and Pneumonia Vaccine Uptake

NCT04761692
View directory record Official record
Conditions
Covid19, Influenza, Pneumonia, Vaccine Refusal
Interventions
Full VEPMP Intervention, Partial VEPMP Intervention, Delayed VEPMP Intervention
Behavioral
Lead sponsor
Charles Drew University of Medicine and Science
Other
Eligibility
65 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 18, 2022 · Synced Jul 22, 2026, 11:55 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 Jul 22, 2026, 11:55 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 Jul 22, 2026, 11:55 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 May 6, 2020 · Synced Jul 22, 2026, 11:55 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 Jul 22, 2026, 11:55 AM EDT
Completed Phase 4 Interventional Results available

Postpartum HPV Vaccination

NCT03451071
View directory record Official record
Conditions
HPV-Related Malignancy
Interventions
Gardasil9
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
16 Years to 26 Years · Female only
Enrollment
195 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Oct 3, 2021 · Synced Jul 22, 2026, 11:55 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 Jul 22, 2026, 11:55 AM EDT
Recruiting Not applicable Interventional

Testimonials and Navigation in Rheumatology

NCT06469788
View directory record Official record
Conditions
Rheumatologic Disease, Autoimmune Diseases
Interventions
Video comprised of AIRD patient narratives on COVID-19 vaccination thoughts and experiences, Video on the importance of good oral health for patients with AIRD, Brochure on COVID-19 vaccination in AIRD patients, Patient Navigation, Brochure on the importance of good oral health in AIRD patients
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years and older
Enrollment
1,170 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
3
States / cities
Birmingham, Alabama • Boston, Massachusetts • Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Jul 22, 2026, 11:55 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 Jul 22, 2026, 11:55 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 4, 2026 · Synced Jul 22, 2026, 11:55 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Motivational Interviewing for Vaccine Uptake in Latinx Adults

NCT06062056
View directory record Official record
Conditions
Vaccine Hesitancy
Interventions
EHR alert, Motivational Interviewing, Warm hand off to nurse
Other · Behavioral
Lead sponsor
Boston College
Other
Eligibility
18 Years and older
Enrollment
3,698 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 14, 2025 · Synced Jul 22, 2026, 11:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

PROmotion of FLU Vaccine Uptake in the Emergency Department - PROFLUVAXED

NCT05836818
View directory record Official record
Conditions
Influenza Vaccination
Interventions
Question (Q), Messaging (M)
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
776 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
8
States / cities
San Francisco, California • Durham, North Carolina • Philadelphia, Pennsylvania + 2 more
Source: ClinicalTrials.gov public record
Updated May 30, 2024 · Synced Jul 22, 2026, 11:55 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 Jul 22, 2026, 11:55 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 Jul 22, 2026, 11:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Assessment, Feedback, Incentive, Exchange (AFIX OB) A Customizable Quality Improvement Intervention to Increase Maternal Vaccine Uptake

NCT04678271
View directory record Official record
Conditions
Influenza, Whooping Cough
Interventions
AFIX-OB Quality Improvement Package
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
202 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Sep 20, 2023 · Synced Jul 22, 2026, 11:55 AM EDT