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ClinicalTrials.gov public records Last synced Sep 9, 2026, 1:55 AM EDT

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Showing 1–24 of 65 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Vaccine Uptake Clear all
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Community Developed Technology-Based Messaging to Increase COVID-19 Vaccine Uptake Among People Who Inject Drugs

NCT04924803
View directory record Official record
Conditions
Covid19
Interventions
No video, Video Text
Behavioral
Lead sponsor
NDRI-USA, Inc.
Other
Eligibility
18 Years and older
Enrollment
545 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 20, 2025 · Synced Sep 9, 2026, 1:55 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Withdrawn Not applicable Interventional Accepts healthy volunteers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 Sep 9, 2026, 1:55 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 9, 2026, 1:55 AM EDT
Completed Early Phase 1 Interventional

Use of a Patient Education/Messaging Platform to Increase Uptake and Series Completion of the HPV Vaccine

NCT02546752
View directory record Official record
Conditions
Human Papilloma Virus Infection Type 11, Human Papilloma Virus Infection Type 16, Human Papilloma Virus Infection Type 18, Human Papilloma Virus Infection Type 6, Cervical Cancer
Interventions
THEO
Other
Lead sponsor
Regenstrief Institute, Inc.
Other
Eligibility
11 Years to 17 Years
Enrollment
1,306 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
5
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated May 24, 2016 · Synced Sep 9, 2026, 1:55 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 Sep 9, 2026, 1:55 AM EDT
Completed Phase 3 Interventional

Promotion of RSV Immunization Through Multiple Efforts

NCT06640868
View directory record Official record
Conditions
Pregnancy, Vaccination
Interventions
MyChart nurse message, SMFM video, Visual aid
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 7, 2025 · Synced Sep 9, 2026, 1:55 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 Sep 9, 2026, 1:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

COVID-19 Vaccine Uptake Trial

NCT05419232
View directory record Official record
Conditions
Vaccination Refusal, COVID-19
Interventions
Short Message Service (SMS) + Website Link Strategy, Phone Call with Peer Strategy
Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
Not listed
Enrollment
262 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
8
States / cities
Hazelwood, Missouri • Jennings, Missouri • Saint Ann, Missouri + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Sep 9, 2026, 1:55 AM EDT
Enrolling by invitation Not applicable Interventional

Patient-Centered Practical Vaccine Talk For Busy Clinicians

NCT07651761
View directory record Official record
Conditions
Influenza, COVID-19
Interventions
Provider communication training
Other
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years and older
Enrollment
24,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 28, 2026 · Synced Sep 9, 2026, 1:55 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 Sep 9, 2026, 1:55 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 Sep 9, 2026, 1:55 AM EDT
Completed Not applicable Interventional

RADx-UP- Impact of Community Health Worker Deployment

NCT05863884
View directory record Official record
Conditions
Diabetes, COVID-19, Community Health Workers, Health Behavior, Health Knowledge, Attitudes, Practice
Interventions
Impact of Community Health Worker Home Deployment on COVID-19 Vaccine Confidence and Uptake
Behavioral
Lead sponsor
Morehouse School of Medicine
Other
Eligibility
18 Years to 50 Years
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Albany, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 30, 2025 · Synced Sep 9, 2026, 1:55 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 9, 2026, 1:55 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 Sep 9, 2026, 1:55 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 Apr 30, 2026 · Synced Sep 9, 2026, 1:55 AM EDT
Completed Not applicable Interventional

Wastewater Surveillance to Boost COVID-19 Vaccine Uptake

NCT05766189
View directory record Official record
Conditions
Vaccination, Wastewater Surveillance
Interventions
Wastewater vaccine prompts
Behavioral
Lead sponsor
Syracuse University
Other
Eligibility
Not listed
Enrollment
100,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Syracuse, New York
Source: ClinicalTrials.gov public record
Updated Jan 13, 2026 · Synced Sep 9, 2026, 1:55 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 9, 2026, 1:55 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 9, 2026, 1:55 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Educate and Improve Underserved Populations' Uptake and Completion of the HPV Vaccine

NCT04611022
View directory record Official record
Conditions
Human Papilloma Virus
Interventions
HPV Educational Intervention
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2028
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 24, 2025 · Synced Sep 9, 2026, 1:55 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 27, 2021 · Synced Sep 9, 2026, 1:55 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 Sep 9, 2026, 1:55 AM EDT
Completed Not applicable Interventional Results available

Provider-Focused Intervention for Maximizing HPV Vaccine Uptake in Young Cancer Survivors

NCT04469569
View directory record Official record
Conditions
Papillomavirus Vaccines
Interventions
HPV-PROTECT
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
9 Years and older
Enrollment
8,120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
6
States / cities
Birmingham, Alabama • Atlanta, Georgia • Minneapolis, Minnesota + 3 more
Source: ClinicalTrials.gov public record
Updated Aug 2, 2026 · Synced Sep 9, 2026, 1:55 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 Jul 23, 2026 · Synced Sep 9, 2026, 1:55 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Web App Technology for Boys and Parents: Improving HPV Vaccine Uptake

NCT03000998
View directory record Official record
Conditions
Human Papillomavirus Virus, HPV
Interventions
Web App Intervention Group, Usual Customary Care Group
Behavioral
Lead sponsor
Klein Buendel, Inc.
Industry
Eligibility
11 Years and older
Enrollment
432 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
3
States / cities
Golden, Colorado • Indianapolis, Indiana • Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Feb 5, 2023 · Synced Sep 9, 2026, 1:55 AM EDT