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Completed

NCT Number: NCT05244356

Health Communication to Influence COVID-19 Vaccination Intent and Message Propagation

This is a randomised controlled experiment in the form of a web based survey study which randomly exposes participants to different forms of public health messages, after which participants will be assessed on their intent to take up the COVID-19 vaccine, recommend the vaccine, and also willingness to propagate the exposed message.

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Key information

Conditions

COVID-19 Behavior Behavior, Health Communicable Diseases Coronaviridae Infections Coronavirus Infections Disease Attributes Health Behavior Infections Infectious Disease Lung Diseases Nidovirales Infections Pathologic Processes Pathological Conditions, Signs and Symptoms Pneumonia Pneumonia, Viral RNA Virus Infections Respiration Disorders Respiratory Disease Respiratory Tract Diseases Respiratory Tract Infections Treatment Adherence and Compliance Treatment Refusal Vaccination Refusal Vaccine Refusal Virus Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Institute for Clinical Research, National Institutes of Health, Malaysia

Shah Alam, Selangor, 40170, Malaysia

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Willing and able to give informed consent for participation in the trial
  • Malaysian nationality.
  • Can understand either the English or Malay language.
  • Aged 18 years or above

Exclusion criteria

  • Received at least one COVID-19 vaccination dose

Treatment and study plan

Health message exposure

Behavioral

Participants exposed to a health message and requested to read it completely. Subsequently requested to answer post intervention questions that form basis for outcome measures.

Primary outcomes

  1. Change in intent to accept the COVID-19 vaccine amongst the Malaysian adult population.

    Time frame: Immediately before and after message exposure during questionnaire administration.

    Outcome measure was assessed using a questionnaire answered through a 4 point ordinal scale. Scale ranges from '"Definitely no", "Not sure, but probably no", "Not sure, but probably yes"to Definitely yes".

  2. Change in intent to recommend the COVID-19 vaccine to healthy adults.

    Time frame: Immediately before and after message exposure during questionnaire administration.

    Outcome measure was assessed using a questionnaire answered through a 5 point ordinal scale. Scale ranges from "Strongly disagree", "Disagree", "Not sure", "Agree", and "Strongly agree".

  3. Change in intent to recommend the COVID-19 vaccine to elderly.

    Time frame: Immediately before and after message exposure during questionnaire administration.

    Outcome measure was assessed using a questionnaire answered through a 5 point ordinal scale. Scale ranges from "Strongly disagree", "Disagree", "Not sure", "Agree", and "Strongly agree".

  4. Change in intent to recommend the COVID-19 vaccine to people with existing health conditions.

    Time frame: Immediately before and after message exposure during questionnaire administration.

    Outcome measure was assessed using a questionnaire answered through a 5 point ordinal scale. Scale ranges from "Strongly disagree", "Disagree", "Not sure", "Agree", and "Strongly agree".

  5. Intent to share message on social media platform.

    Time frame: Immediately after message exposure during questionnaire administration.

    Outcome measure was assessed using a questionnaire answered through a 5 point ordinal scale.Scale ranges from "Strongly disagree", "Disagree", "Not sure", "Agree", and "Strongly agree".

Secondary outcomes

  1. Moderators of vaccination intent.

    Time frame: Immediately after message exposure during questionnaire administration.

    Outcome measure assessed using a series of questions answered through a 5 point ordinal scale. Scale ranges from "Strongly disagree", "Disagree", "Not sure", "Agree", and "Strongly agree".

  2. Reliability of various information sources about COVID-19.

    Time frame: Immediately after message exposure during questionnaire administration.

    Outcome measure assessed using a questionnaire that list out various types of information sources and having participants to rate the reliability for each source using a 5 point ordinal scale. Scale ranges from "Strongly not reliable", "Not reliable, "Not sure", "Reliable", and "Strongly reliable".

Sponsors and collaborators

Lead sponsor

Clinical Research Centre, Malaysia

Other

Collaborators

  • Institute for Health Behavioral Research, Malaysia
  • London School of Economics and Political Science
  • Ministry of Health, Malaysia
  • UNICEF Malaysia
  • University of Malaya

Registry information

Official study title

Effective Public Health Communication to Influence COVID-19 Vaccination Intent and Message Propagation: A Randomized Controlled Experiment

Acronym: CONVINCE

Important dates

Study start
2021
Primary completion
2021
Study completion
2021
First posted
Feb 17, 2022
Registry last updated
Feb 17, 2022

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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