Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Sep 7, 2026, 2:31 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 70 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Vaccination Promotion Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Marketability of a Technology-based Intervention to Increase HPV Vaccination

NCT03497936
View directory record Official record
Conditions
Human Papilloma Virus
Interventions
Women's Stories
Behavioral
Lead sponsor
Real Prevention, LLC
Industry
Eligibility
18 Years to 26 Years · Female only
Enrollment
360 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
7
States / cities
Irvine, California • Chicago, Illinois • St Louis, Missouri + 3 more
Source: ClinicalTrials.gov public record
Updated Sep 18, 2022 · Synced Sep 7, 2026, 2:31 PM EDT
Completed Not applicable Interventional Results available

COVID-19 Vaccinations With a Sweepstakes

NCT04951310
View directory record Official record
Conditions
Covid19
Interventions
Philly Vax Sweepstakes
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
3,827,656 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 2, 2025 · Synced Sep 7, 2026, 2:31 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Communication Strategy to PROMOTE HPV Vaccination in Pharmacies: PROMOTE Study

NCT04660331
View directory record Official record
Conditions
Human Papillomavirus Infection
Interventions
Communication Intervention, Communication Skills Training, Healthcare Activity, Survey Administration
Other · Behavioral
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 8, 2024 · Synced Sep 7, 2026, 2:31 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Text-based Interventions to Promote COVID-19 Vaccinations

NCT04800965
View directory record Official record
Conditions
Covid19, Vaccines
Interventions
Patient MyChart Scheduling Link, Patient Educational Video, Enhanced Follow through Message
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
200,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Westwood, Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 12, 2022 · Synced Sep 7, 2026, 2:31 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Investigating the Effectiveness of a Seasonal Influenza Vaccination Promotion Campaign for Members of a Non-Profit, Community-Based Health Insurance Plan: 2018-2019

NCT03700281
View directory record Official record
Conditions
Influenza, Vaccination
Interventions
Messaging, Incentive
Behavioral
Lead sponsor
The University of Texas Health Science Center at Tyler
Other
Eligibility
18 Years and older
Enrollment
22,584 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Apr 22, 2019 · Synced Sep 7, 2026, 2:31 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Developing a Self-persuasion Intervention Promoting Adolescent HPV Vaccination: Feasibility Trial

NCT02535845
View directory record Official record
Conditions
Human Papillomavirus Vaccines
Interventions
Project Voice, HPV Informational Video
Behavioral
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
11 Years and older
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jan 29, 2024 · Synced Sep 7, 2026, 2:31 PM 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 7, 2026, 2:31 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

COVID-2019 Testing and Vaccination Among African American and Latinx Public Housing Residents

NCT04542395
View directory record Official record
Conditions
Coronavirus
Interventions
Increasing Willingness and Uptake of COVID-19 Testing and Vaccination
Behavioral
Lead sponsor
Charles Drew University of Medicine and Science
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 18, 2022 · Synced Sep 7, 2026, 2:31 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Message Encouraging Vaccination in Preparation for the Holidays

NCT05612360
View directory record Official record
Conditions
COVID-19
Interventions
COVID Booster text messages
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
520,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 2, 2023 · Synced Sep 7, 2026, 2:31 PM EDT
Completed Not applicable Interventional Results available

Encouraging Flu Vaccination Among High-Risk Patients Identified by ML

NCT04323137
View directory record Official record
Conditions
Influenza, Vaccination, Health Promotion, Health Behavior, Risk Reduction
Interventions
Risk reduction, Medical records-based recommendation, Algorithm-based recommendation
Behavioral
Lead sponsor
Geisinger Clinic
Other
Eligibility
17 Years and older
Enrollment
117,649 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 29, 2024 · Synced Sep 7, 2026, 2:31 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

An Intervention Promoting HPV Vaccination in Safety-net Clinics

NCT01729429
View directory record Official record
Conditions
Human Papilloma Virus-Related Cervical Carcinoma
Interventions
HPV brochure, recall, reminders, General Adolescent Vaccine Brochure
Behavioral
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
11 Years to 18 Years · Female only
Enrollment
831 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
2
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Mar 17, 2020 · Synced Sep 7, 2026, 2:31 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 7, 2026, 2:31 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Comparing Relative Strengths of Statistical Associations Between Psychological Traits and Vaccination-Related Outcomes I

NCT07172074
View directory record Official record
Conditions
Vaccination, Vaccination Hesitancy, Vaccination Promotion, Psychological Aspects
Interventions
General Psych Trait Measure, Vaccine-Specific Psych Trait Measures
Diagnostic Test · Other
Lead sponsor
University of Iowa
Other
Eligibility
18 Years and older
Enrollment
1,786 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Sep 15, 2025 · Synced Sep 7, 2026, 2:31 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Message From Local Pharmacy Team

NCT05613764
View directory record Official record
Conditions
COVID-19
Interventions
COVID Booster text messages
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
520,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 2, 2023 · Synced Sep 7, 2026, 2:31 PM 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 7, 2026, 2:31 PM EDT
Completed Not applicable Interventional

Efficacy of Communication Modalities for Promoting Flu Shots

NCT05509270
View directory record Official record
Conditions
Influenza Vaccination, Health Promotion, Health Behavior, Risk Reduction
Interventions
Letter, Patient portal, SMS
Behavioral
Lead sponsor
Geisinger Clinic
Other
Eligibility
18 Years and older
Enrollment
43,225 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 11, 2022 · Synced Sep 7, 2026, 2:31 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Message Communicating Latest Data on COVID-19 Transmission in Patient's Area

NCT05621226
View directory record Official record
Conditions
COVID-19
Interventions
COVID Booster text messages
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
520,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 2, 2023 · Synced Sep 7, 2026, 2:31 PM EDT
Completed Not applicable Interventional Results available

Precision Vaccine Promotion in Underserved Populations

NCT05537441
View directory record Official record
Conditions
Influenza, Vaccine Hesitancy
Interventions
Text messaging
Behavioral
Lead sponsor
University of Southern California
Other
Eligibility
6 Months and older
Enrollment
228,831 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 30, 2024 · Synced Sep 7, 2026, 2:31 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Emails Promoting COVID-19 Vaccination Among Healthcare Workers

NCT04728594
View directory record Official record
Conditions
Vaccination Refusal, Communication
Interventions
Social Proof, Reframing, Scarcity Message
Behavioral
Lead sponsor
Geisinger Clinic
Other
Eligibility
Not listed
Enrollment
9,566 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 25, 2021 · Synced Sep 7, 2026, 2:31 PM EDT
Completed Not applicable Interventional

Nudging Flu Vaccination in Patients at Moderately High Risk for Flu and Flu-related Complications

NCT05509283
View directory record Official record
Conditions
Influenza, Vaccination, Health Promotion, Health Behavior, Risk Reduction
Interventions
Risk Reduction
Behavioral
Lead sponsor
Geisinger Clinic
Other
Eligibility
18 Years and older
Enrollment
40,671 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 4, 2022 · Synced Sep 7, 2026, 2:31 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Clinic-based HPV and COVID-19 Vaccine Promoting Intervention for AfAm Adolescents in Alabama

NCT04604743
View directory record Official record
Conditions
Vaccine Refusal
Interventions
Intervention, TBN
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
15 Years to 26 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Apr 5, 2023 · Synced Sep 7, 2026, 2:31 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Developing a Self-persuasion Intervention Promoting Adolescent HPV Vaccination

NCT02537756
View directory record Official record
Conditions
Human Papillomavirus Vaccines
Interventions
Project Voice
Behavioral
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years and older
Enrollment
737 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated May 17, 2020 · Synced Sep 7, 2026, 2:31 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mobile Health-based Motivational Interviewing to Promote COVID-19 Vaccination

NCT05977192
View directory record Official record
Conditions
Vaccination Hesitancy
Interventions
Standard MI, Intensive MI, MOTIVACC, Ecological momentary assessment (EMA) messages
Behavioral
Lead sponsor
Oklahoma State University
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
2
States / cities
Oklahoma City, Oklahoma • Stillwater, Oklahoma
Source: ClinicalTrials.gov public record
Updated Mar 20, 2025 · Synced Sep 7, 2026, 2:31 PM EDT
Completed Not applicable Interventional Results available

Nudging Flu Vaccination by Making it Easy for Patients to Schedule a Flu Shot

NCT05493787
View directory record Official record
Conditions
Influenza
Interventions
Reminder
Behavioral
Lead sponsor
Geisinger Clinic
Other
Eligibility
18 Years and older
Enrollment
139,503 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 29, 2024 · Synced Sep 7, 2026, 2:31 PM EDT