Tobacco PreventionNCT06913166
Effectiveness of an Online Quiz in Promoting Tobacco-Related Knowledge, Attitudes, and Behaviours Among Primary Students
A study testing Online quiz competition in people with Tobacco Prevention, run by The University of Hong Kong at 1 site in Hong Kong.
Trial summary
The goal of this modified pilot RCT is to evaluate the effects of the intervention (online platform) on tobacco-related knowledge, attitudes and intentions on smoking among local primary 5-6 school students. Read more about this study
- Who is it for?
- Ages 9 to 13 yearsHealthy volunteers can take part
- Conditions the study is for
- Tobacco Prevention
- What is being tested?
- Online quiz competition
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 700 participants
- Where
- 1 siteHong Kong
- Study dates
- 11 Apr 2025to 30 Sep 2025
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 9 to 13 years
- All sexes
- Healthy volunteers accepted
- Child
Who may be able to join
- Primary 5-6 students from local primary schools
- Able to read and communicate in Chinese
- Have a digital device for online access to the quiz game at home
Who cannot join
- None
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Hong Kong1 site, 1 recruiting
- Recruiting
Local primary schools
Hong Kong
Sze Lam Luk, 852 54962808, clamlsl@connect.hku.hk
About this study
Official title: A Modified Pilot Randomised Controlled Trial (RCT) on the Effectiveness of an Online Quiz Game to Promote Tobacco-Related Knowledge, Attitudes, and Behaviours Among Primary School Students
The goal of this modified pilot RCT is to evaluate the effects of the intervention (online platform) on tobacco-related knowledge, attitudes and intentions on smoking among local primary 5-6 school students. The main questions it aims to answer are:
- Is the intervention effective in improving tobacco-related knowledge (including alternative smoking products (ASPs) and tobacco control development in the world and Hong Kong)?
- Is the intervention effective in improving tobacco-related attitudes and intentions (including ASPs and tobacco control development in the world and Hong Kong)?
Researchers will compare the questionnaire results from students to see if intervention groups (students doing tobacco-related questions on the online quiz platform) will have better tobacco-related knowledge, higher anti-tobacco attitudes and lower intention to smoke.
- Conditions
- Tobacco Prevention
- Being tested
- Online quiz competition
- Keywords
- tobacco cessation, literacy, non-pharmaceutical intervention, adolescents
- Medical subject headings
- Tobacco Use Cessation, Literacy
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Online quiz competitionOther
Students in the intervention and control arm will participate in an online quiz game on tobacco or diet related topics respectively. Each day, students could answer a maximum of 10 questions randomly selected from the respective pool of questions by the platform. The students logged onto the online platform and played the quiz competition on weekdays for 5 days.
| Study group | Role | What they receive |
|---|---|---|
| Quiz related to tobacco topics | Experimental | Students will engage in an online quiz competition for 5 days on tobacco-related topics. Each day, students could answer a maximum of 10 questions. Receives: Other: Online quiz competition |
| Quiz related to healthy eating topics | Active comparator | Students will engage in an online quiz competition for 5 days on healthy eating-related topics. Each day, students could answer a maximum of 10 questions. Receives: Other: Online quiz competition |
What is being measured
The primary outcome is the main question the study is designed to answer.
Effectiveness of intervention on tobacco-related knowledge (including ASPs and tobacco control development in the world and Hong Kong)
Students reported their opinions towards 5 statements in pre and post tests: [Pre-test] 1) Smoking causes wrinkles to form on the skin; 2) Third-hand smoke can remain on surfaces for weeks; 3) E-cigarettes can help with smoking cessation; 4) Tobacco companies aim to prevent teenagers from smoking; 5) The Hong Kong government has already banned the sale of e-cigarettes.
[Post-test]
- Smoking can cause hair loss; 2) Opening windows or turning on a fan can eliminate the effects of thirdhand smoke; 3) E-cigarettes avoid the problem of secondhand smoke; 4) Tobacco companies hire influencers to promote tobacco products; 5) The Hong Kong government has already banned the sale of heated tobacco products.
Students' knowledge will be assessed using a 5-point Likert scale, with each item rated on a 5-point Likert scale ranging from 1 (Strongly disagree) to 5 (Strongly agree). Item scores will be recoded as appropriate, so that higher scores consistently reflect better knowledge.
Measured: Right before the intervention and at 8-12th days
Effectiveness of intervention on tobacco-related attitudes (including ASPs and tobacco control development in the world and Hong Kong)
Students will report their opinions towards 5 statements: 1) Smoking is a selfish behavior; 2) I hope to avoid exposure to secondhand smoke; 3) Vaping is a trend.; 4) Tobacco companies use different methods to attract people to smoke; 5) The government should prohibit people from smoking while walking.
Students' attitudes will be assessed using a 5-point Likert scale, with each item rated on a 5-point Likert scale ranging from 1 (Strongly disagree) to 5 (Strongly agree). Item scores will be recoded as appropriate, so that higher scores consistently reflect more negative attitudes.
Measured: Right before the intervention and at 8-12th days.
Effectiveness of intervention on tobacco-related intentions (including ASPs and tobacco control development in the world and Hong Kong)
Students were asked: If one of your good friends offers you a traditional cigarette, e-cigarette or heated tobacco product, ask you to have a few puffs, and no one will know about this as no more smoking in the future. Will you use them?
Students' intention will be assessed using a 5-point Likert scale, with each item rated on a 5-point Likert scale ranging from 1 (Definitely no) to 5 (Definitely yes). Lower scores indicate a lower intention to use ASPs.
Measured: Right before the intervention and at 8-12th days.
Secondary outcomes (4)
Effectiveness of intervention on SHS and THS exposure at home
Students were asked: In the past 7 days, how many days (0-7) 1) was someone smoking next to you when you were at home? 2) do you smell secondhand smoke drifting in from outside when you were at home? 3) was someone smoking next to you when you were outside home? 4) you can smell cigarette smoke on objects or people when you are at home and no one is smoking, and you don't see any smoke?
Each item was rated on an 8-point scale ranging from 0 (0 days) to 7 (7 days), with higher scores indicating more frequent exposure to secondhand smoke (i.e., a worse outcome).
Measured: Right before the intervention and at 8-12th days.
Effectiveness of intervention on tobacco use
Students were asked: 1) Which of the following tobacco products have you ever used? 2) In the past 30 days, which of the following tobacco products have you used?
Measured: Right before the intervention and at 8-12th days.
Adherence to the 5-day intervention
Students will report their adherence to the 5-day intervention. This information will be extracted directly from online quiz log of the participants via the backend of the system.
Measured: At 8-12th days
Satisfaction of students and parents towards intervention
These will be assessed using a qualitative interview for a subset of the participants and their family (10 students and parents)
Measured: From 2-8 weeks after the completion of the post-questionnaire
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted6 Apr 2025
- Study start11 Apr 2025
- Primary completion31 Aug 2025 (estimated)
- Study completion30 Sep 2025 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Tobacco PreventionStudies of the same condition, open and under way.
- More trials run by The University of Hong KongThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 700 participants (estimated)
Sponsor and investigators
- Lead sponsor
- The University of Hong Kong
- Sponsor type
- University, hospital or other
- Collaborators
- Hong Kong Council on Smoking and Health
- Responsible party
- Principal investigator, Au Yeung, Shiu Lun Ryan, The University of Hong Kong
- Investigators
- Shiu Lun Ryan Au Yeung, Principal investigator, School of Public Health, The University of Hong Kong
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06913166
- Sponsor's protocol ID
- coshdrama2425
- Status last verified
- Apr 2025
- First submitted
- 19 Mar 2025
- Last updated
- 22 Apr 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: De-identified individual participant data underlying the results in this article, including text, tables, figures, and appendices, along with the study protocol and statistical analysis plan, will be available for sharing. Data access will be granted starting three months after publication and will remain available for up to five years. Researchers with a methodologically sound proposal aligned with the approved study objectives may request access by contacting the principal investigator(PI) (Ryan Au Yeung) at ayslryan@hku.hk. Approved data requestors will be required to sign a data-access agreement.
Study at a glance
From the registry record, last updated by the sponsor on 22 Apr 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Modified Pilot Randomised Controlled Trial (RCT) on the Effectiveness of an Online Quiz Game to Promote Tobacco-Related Knowledge, Attitudes, and Behaviours Among Primary School Students
- ClinicalTrials.gov ID
- NCT06913166
- Acronym / sponsor ID
- coshdrama2425
- Conditions
- Tobacco Prevention
- Keywords
- tobacco cessation, literacy, non-pharmaceutical intervention, adolescents
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 700 participants (estimated)
- Lead sponsor
- The University of Hong KongUniversity, hospital or other
- Collaborators
- Hong Kong Council on Smoking and Health
- Study start
- 11 Apr 2025 (actual)
- Primary completion
- 31 Aug 2025 (estimated)
- Study completion
- 30 Sep 2025 (estimated)
- First posted
- 6 Apr 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The goal of this modified pilot RCT is to evaluate the effects of the intervention (online platform) on tobacco-related knowledge, attitudes and intentions on smoking among local primary 5-6 school students. The main questions it aims to answer are:
- Is the intervention effective in improving tobacco-related knowledge (including alternative smoking products (ASPs) and tobacco control development in the world and Hong Kong)?
- Is the intervention effective in improving tobacco-related attitudes and intentions (including ASPs and tobacco control development in the world and Hong Kong)?
Researchers will compare the questionnaire results from students to see if intervention groups (students doing tobacco-related questions on the online quiz platform) will have better tobacco-related knowledge, higher anti-tobacco attitudes and lower intention to smoke.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Quiz related to tobacco topics | Experimental | Other: Online quiz competitionStudents will engage in an online quiz competition for 5 days on tobacco-related topics. Each day, students could answer a maximum of 10 questions. |
| Quiz related to healthy eating topics | Active comparator | Other: Online quiz competitionStudents will engage in an online quiz competition for 5 days on healthy eating-related topics. Each day, students could answer a maximum of 10 questions. |
Who may qualify
- Ages
- 9 to 13 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child
Key inclusion criteria (3 listed)
- Primary 5-6 students from local primary schools
- Able to read and communicate in Chinese
- Have a digital device for online access to the quiz game at home
Key exclusion criteria (1 listed)
- None
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Online quiz competitionStudents in the intervention and control arm will participate in an online quiz game on tobacco or diet related topics respectively. Each day, students could answer a maximum of 10 questions randomly selected from the respective pool of questions by the platform. The students logged onto the online platform and played the quiz competition on weekdays for 5 days. | Other | Quiz related to healthy eating topics, Quiz related to tobacco topics |
Primary outcome
Effectiveness of intervention on tobacco-related knowledge (including ASPs and tobacco control development in the world and Hong Kong)
Time frame: Right before the intervention and at 8-12th days
Students reported their opinions towards 5 statements in pre and post tests: [Pre-test] 1) Smoking causes wrinkles to form on the skin; 2) Third-hand smoke can remain on surfaces for weeks; 3) E-cigarettes can help with smoking cessation; 4) Tobacco companies aim to prevent teenagers from smoking; 5) The Hong Kong government has already banned the sale of e-cigarettes. [Post-test] 1) Smoking can cause hair loss; 2) Opening windows or turning on a fan can eliminate the effects of thirdhand smoke; 3) E-cigarettes avoid the problem of secondhand smoke; 4) Tobacco companies hire influencers to promote tobacco products; 5) The Hong Kong government has already banned the sale of heated tobacco products. Students' knowledge will be assessed using a 5-point Likert scale, with each item rated on a 5-point Likert scale ranging from 1 (Strongly disagree) to 5 (Strongly agree). Item scores will be recoded as appropriate, so that higher scores consistently reflect better knowledge.
Effectiveness of intervention on tobacco-related attitudes (including ASPs and tobacco control development in the world and Hong Kong)
Time frame: Right before the intervention and at 8-12th days.
Students will report their opinions towards 5 statements: 1) Smoking is a selfish behavior; 2) I hope to avoid exposure to secondhand smoke; 3) Vaping is a trend.; 4) Tobacco companies use different methods to attract people to smoke; 5) The government should prohibit people from smoking while walking. Students' attitudes will be assessed using a 5-point Likert scale, with each item rated on a 5-point Likert scale ranging from 1 (Strongly disagree) to 5 (Strongly agree). Item scores will be recoded as appropriate, so that higher scores consistently reflect more negative attitudes.
Effectiveness of intervention on tobacco-related intentions (including ASPs and tobacco control development in the world and Hong Kong)
Time frame: Right before the intervention and at 8-12th days.
Students were asked: If one of your good friends offers you a traditional cigarette, e-cigarette or heated tobacco product, ask you to have a few puffs, and no one will know about this as no more smoking in the future. Will you use them? Students' intention will be assessed using a 5-point Likert scale, with each item rated on a 5-point Likert scale ranging from 1 (Definitely no) to 5 (Definitely yes). Lower scores indicate a lower intention to use ASPs.
4 secondary outcomes
Effectiveness of intervention on SHS and THS exposure at home
Time frame: Right before the intervention and at 8-12th days.
Effectiveness of intervention on tobacco use
Time frame: Right before the intervention and at 8-12th days.
Adherence to the 5-day intervention
Time frame: At 8-12th days
Satisfaction of students and parents towards intervention
Time frame: From 2-8 weeks after the completion of the post-questionnaire
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 22 Apr 2025.
- Individual participant dataSharing planned: Yes. De-identified individual participant data underlying the results in this article, including text, tables, figures, and appendices, along with the study protocol and statistical analysis plan, will be available for sharing. Data access will be granted starting three months after publication and will remain available for up to five years. Researchers with a methodologically sound proposal aligned with the approved study objectives may request access by contacting the principal investigator(PI) (Ryan Au Yeung) at ayslryan@hku.hk. Approved data requestors will be required to sign a data-access agreement.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Shiu Lun Ryan Au Yeung principal investigator
School of Public Health, The University of Hong Kong
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Online quiz competition in people with Tobacco Prevention, run by The University of Hong Kong at 1 site in Hong Kong.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 22 Apr 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Hong Kong. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Sze Lam Luk (852 54962808, clamlsl@connect.hku.hk), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Effectiveness of intervention on tobacco-related knowledge (including ASPs and tobacco control development in the world and Hong Kong) (time frame: Right before the intervention and at 8-12th days). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Apr 2025.