A Chatbot Intervention for Reducing HPV Vaccine Hesitancy

July 23, 2024 updated by: University of Maryland, College Park
The goal of this project is to test the efficacy of a chatbot intervention for reducing HPV vaccine hesitancy among African American parents. An online experiment will be conducted to test the effectiveness of the chatbot intervention with African American parents. Results of this project will inform future communication interventions for reducing vaccine hesitancy among African American parents.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The goal of this project is to test the efficacy of a chatbot intervention for reducing HPV vaccine hesitancy among African American parents. An online survey-experiment will be conducted. In the survey-experiment, participants will first answer questions related to their attitudes toward childhood vaccines and see a brief CDC message about HPV vaccine. Then they will be directed to interact with a chatbot designed to deliver personalized HPV vaccine messages (tailored to the participant's personality) or a similar chatbot with non-personalized messages. There will also be a control condition where participants will see the brief CDC message about HPV vaccine but will not interact with any chatbot. All participants will answer questions related to their attitudes toward HPV vaccination, intentions to vaccinate their children, as well as other message response measures.

Study Type

Interventional

Enrollment (Actual)

456

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Maryland
      • College Park, Maryland, United States, 20742
        • University of Maryland, College Park (Online Survey-Experiment)

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • 18 years or older
  • Self-identify as Black or African American
  • Parents of children under 18 years old
  • Access to computer/laptop/mobile device and the Internet

Exclusion Criteria:

  • Under 18 years
  • Does not self-identify as Black or African American
  • Not a parent of at least a child under 18 years old
  • No access to computer/laptop/mobile device or the Internet

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Personalized Chatbot Condition
After reading a standard CDC HPV vaccine message, participants will interact with a chatbot designed to deliver personalized HPV vaccine messages (i.e., tailored to their personalities).
Behavioral: Personalized Chatbot Intervention
In this intervention, participants will first see a standard CDC HPV vaccine message. After that they will be invited to interact with a chatbot designed to deliver additional HPV vaccine messages, which are tailored to their personalities.
Experimental: Non-Personalized Chatbot Condition
After reading a standard CDC HPV vaccine message, participants will interact with a chatbot designed to deliver HPV vaccine messages, which are not tailored to their personalities.
Behavioral: Non-Personalized Chatbot Intervention
In this intervention, participants will first see a standard CDC HPV vaccine message. After that they will be invited to interact with a chatbot designed to deliver additional HPV vaccine messages, which are not tailored to their personalities.
Active Comparator: No Chatbot Control Condition
Participants will read a standard CDC HPV vaccine message without interacting with any chatbot that delivers additional messages.
Behavioral: No Chatbot Control
In this intervention, participants will see a standard CDC HPV vaccine message only and will not interact with any chatbot.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Attitudes Toward HPV Vaccination
Time Frame: baseline posttest (test took approximately 5 minutes to complete)
Participants' attitudes toward HPV vaccination were measured by seven questions such as "The HPV vaccine is beneficial for adolescents." The responses were recorded on 1 (strongly disagree) to 5 (strongly agree) scales. Final score was the average of all 7 questions.
baseline posttest (test took approximately 5 minutes to complete)
Intentions Toward HPV Vaccination
Time Frame: baseline posttest (test took approximately 5 minutes to complete)
Participants' intentions toward vaccinating their children against HPV were measured by three questions such as "I am likely to get my child/children the HPV vaccine." Responses were indicated on 1 (strongly disagree) to 5 (strongly agree) scales. The final score was the average of the three questions.
baseline posttest (test took approximately 5 minutes to complete)

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Ratings of the Chatbot
Time Frame: baseline posttest (test took approximately 5 minutes to complete)
Ratings of the Chatbot were measured by nine questions such as "How would you describe the HPV chatbot you just interacted with? - Engaging" on 1 (strongly disagree) to 5 (strongly agree) scales. The final score was the average of the nine questions.
baseline posttest (test took approximately 5 minutes to complete)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Maryland, College Park

Investigators

  • Principal Investigator: Xiaoli Nan, University of Maryland, College Park

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

July 26, 2023

Primary Completion (Actual)

August 8, 2023

Study Completion (Actual)

August 8, 2023

Study Registration Dates

First Submitted

July 6, 2023

First Submitted That Met QC Criteria

July 17, 2023

First Posted (Actual)

July 25, 2023

Study Record Updates

Last Update Posted (Actual)

October 21, 2024

Last Update Submitted That Met QC Criteria

July 23, 2024

Last Verified

July 1, 2024

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 1960782-1

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

We will share anonymized data on data repositories such as the Open Science Framework.

IPD Sharing Time Frame

After the study is published, for 5 years.

IPD Sharing Access Criteria

All information is open to the public.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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