A RCT Evaluating an Online Intervention in Increasing Pneumococcal Vaccination Among Older Adults

April 4, 2023 updated by: Zixin Wang, Chinese University of Hong Kong

A Randomized Controlled Trial Evaluating a Theory-based Online Intervention Via Fully Automated Chatbot in Increasing Pneumococcal Vaccination Among Community Dwelling Individuals Aged ≥65 Years

To evaluate the relative efficacy of an online intervention based on the Trans-theoretical Model delivered by a fully-automated Chatbot with natural language processing functions versus a control in promoting pneumococcal vaccination uptake among Hong Kong people aged ≥65 years. A total of 374 participants will be randomized evenly to either the intervention group or the control group. Participants in the intervention group will receive Chatbot-delivered interventions tailored to their stage of change regarding PV uptake in a conversational way at Month 0, 1, 2, and 3. Participants in the control group will receive Chatbot-delivered general information related to PV at Month 0, 1, 2, and 3. All participants will be followed up 6 and 12 months after completion of the intervention.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Anticipated)

374

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 Contact

Study Locations

  • Hong Kong
      • Hong Kong, Hong Kong, 666888
        • Recruiting
        • Centre for Health Behaviours Research, the Chinese University of Hong Kong
        • Contact:

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

65 years and older (Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • aged ≥65 years
  • having Hong Kong ID
  • Chinese speaking
  • have not received any penumococcal vaccination
  • willing to be followed up by telephone
  • having a smartphone
  • able to send and read text/voice messages via smartphone.

Exclusion Criteria:

  • blindness or deafness
  • not able to communicate with others effectively
  • with known contradictions of pneumococcal vaccination
  • having been diagnosed with major psychiatric illness
  • scored ≤16 in the validated telephone version of the Cantonese Mini-mental State Examination (T-CMMSE).

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: Health Services Research
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Intervention
Participants receive Chatbot-delivered interventions tailored to their stage of change regarding PV uptake in a conversational way at Month 0, 1, 2, and 3.
Behavioral: Chatbot-delivered interventions tailored to stage of changes
Participants receive Chatbot-delivered interventions tailored to their stage of change regarding PV uptake in a conversational way at Month 0, 1, 2, and 3.
Active Comparator: Control
Participants receive Chatbot-delivered general information related to PV at Month 0, 1, 2, and 3.
Behavioral: Chatbot-delivered standard interventions
Participants receive Chatbot-delivered general information related to PV at Month 0, 1, 2, and 3.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Pneumococcal vaccination uptake
Time Frame: 12 months
Self-reported uptake of pneumococcal vaccination within the 12-month follow-up period
12 months

Collaborators and Investigators

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

Sponsor

Chinese University of Hong Kong

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)

March 13, 2023

Primary Completion (Anticipated)

August 31, 2024

Study Completion (Anticipated)

August 31, 2024

Study Registration Dates

First Submitted

March 6, 2023

First Submitted That Met QC Criteria

March 6, 2023

First Posted (Actual)

March 16, 2023

Study Record Updates

Last Update Posted (Actual)

April 6, 2023

Last Update Submitted That Met QC Criteria

April 4, 2023

Last Verified

April 1, 2023

More Information

Terms related to this study

Other Study ID Numbers

  • 20190972

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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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