NCT04302480|Unknown
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Sponsor study identifier
interventional
1,000
1 country
1
Study Start
May 18, 2020
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Primary Completion
July 31, 2020
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
July 31, 2020
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
The brief intervention comprises a 4-page worksheet used in the classroom (main intervention) and subsequent weekly e-messages through WhatsApp (booster intervention). The worksheets for both groups will be printed in colour, and mainly contain pictures and simple texts. Students will be asked to provide smartphone numbers of themselves and their parents for receiving the booster interventions. After sending 4-6 e-messages in 4 weeks, students will complete a 1-month follow-up assessment.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
July 31, 2020
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
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Some registry-reported names shown below are not yet linked in this graph.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
March 6, 2020
Actual (reported)March 10, 2020
Actual (reported)May 18, 2020
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
July 31, 2020
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
July 31, 2020
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Knowledge on the harms and misleading marketing strategies of ASPs
Students will report their opinions towards 5 statements: 1. Children who use e-cigarettes are more likely to smoke cigarettes in the future; 2. Hazards of secondhand smoke of e-cigarettes and heated tobacco products are slight; 3. Nicotine content in heated tobacco products is lower than in the cigarettes, which is more difficult to get addicted; 4. There are a variety of carcinogens in the heated tobacco products; 5. Tobacco industries do everything they can to get young people to use tobacco products. All the statements have 5 options from definitely no to definitely yes. The options will be recoded into 0-4 or 4-0, as appropriate, with higher scores indicating knowing more about the harms and misleading marketing strategies of ASPs.
Immediately after intervention
Attitudes towards ASPs
Students will report their opinions towards 2 questions: 1. Do you think the usage of e-cigarettes and heated tobacco products will harm your health? There will be 11 options from definitely no harm to definitely harm. 2. Do you accept the primary students use e-cigarettes and heated tobacco products? There will be 11 options from definitely unacceptable to definitely acceptable.
Immediately after intervention
Intention to use ASPs
Immediately after intervention
Knowledge on the harms and misleading marketing strategies of ASPs
1-month follow-up
Attitudes towards ASPs
1-month follow-up
Intention to use ASPs
1-month follow-up
The ASP intervention will cover the harms and misleading marketing strategies of ASPs and other related information.
The SSB intervention will cover the general information on SSBs, such as the sugar content of SSBs, nutrition labels and the harms of SSBs.
Local primary schools
Hong Kong, Hong Kong
Sai Yin Ho, PhD
The University of Hong Kong
First Submitted
March 6, 2020
First Posted
March 10, 2020
Study Start
May 18, 2020
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Primary Completion
July 31, 2020
In the subsequent month after the main intervention, students in the ASP group will receive 4-6 e-messages on ASPs, after which students will be invited to complete a 1-month follow-up assessment.
In the subsequent month after the main intervention, students in the SSB group will receive 4-6 e-messages on SSBs, after which students will be invited to complete a 1-month follow-up assessment.
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Contact the study team to confirm eligibility.
This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
July 31, 2020
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Last Updated
March 10, 2020
Record last verified: 2020-03
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Source: ClinicalTrials.gov.
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