Tobacco UseNCT03264144
Address Tobacco Use Among Adolescents in Hong Kong
A study testing Social norms campaign in people with Tobacco Use, run by The University of Hong Kong at 1 site in Hong Kong.
Trial summary
This study will examine the effectiveness of a social norms campaign in correcting smoking misperceptions, reducing smoking susceptibility and changing smoking-related behaviours in Hong Kong adolescents. Read more about this study
- Who is it for?
- Ages 11 to 20 yearsHealthy volunteers can take part
- Conditions the study is for
- Tobacco Use
- What is being tested?
- Social norms campaign
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 12,868 participants
- Where
- 1 siteHong Kong
- Study dates
- 13 Oct 2017to Jul 2018
- Phase
- Interventional
- Are there results?
- None posted in the registry
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 11 to 20 years
- All sexes
- Healthy volunteers accepted
- Child, Adult
Who may be able to join
- Local secondary schools that cover grades 1-6
Who cannot join
- International secondary schools
- Special schools for adolescents with visual, hearing or other physical impairments or disabilities
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Changing Social Norms Around Smoking: A Cluster Randomized Controlled Trial to Address Tobacco Use Among Adolescents in Hong Kong
This study will examine the effectiveness of a social norms campaign in correcting smoking misperceptions, reducing smoking susceptibility and changing smoking-related behaviours in Hong Kong adolescents.
Read the detailed description
The study involves a behavioural intervention with social norms approaches to correct smoking misperceptions, reduce smoking susceptibility and change smoking-related behaviours in Hong Kong adolescents. A 2-arm stratified clustered randomised controlled trial (RCT) will be conducted to evaluate the effectiveness of the intervention. A total of 18 secondary schools will be randomly selected from the 5 regions in Hong Kong and invited to the RCT. The schools will then be randomly allocated to intervention or control group in the ratio of 1:1. Secondary 1 to 5 (US Grade 7 to 11) students will be invited. Students in both intervention and control group will complete a baseline survey, and the intervention group will receive the intervention after the baseline. Intervention materials includes posters and table tents at school, flyers to students, and online banner on school website. The intervention adopts social norms approaches, and will highlight the prevalence of adolescents who do not smoke and have no intention to smoke. It will last for 2 months. Both intervention and control groups will complete follow-up surveys at 3 and 9 months. The control group will receive the intervention materials after the RCT.
- Conditions
- Tobacco Use
- Being tested
- Social norms campaign
- Keywords
- Social norms, Adolescent, Smoking, Randomised controlled trial
- Medical subject headings
- Tobacco Use, Smoking
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Social norms campaignBehavioural
Intervention messages will mainly highlight the prevalence of Hong Kong adolescents who do not smoke cigarettes and have no intention to smoke cigarettes. The messages will be conveyed to students through posters, table tents, flyers and an online banner. Posters will be posted at prominent places in schools, table tents will be placed in school canteens, flyers will be distributed to students, and the online banner will be placed at the school website. The intervention will last for 2 months.
| Study group | Role | What they receive |
|---|---|---|
| Intervention | Experimental | Students in the schools assigned to the intervention group will receive the intervention after the baseline survey. The intervention will be a social norms campaign involving posters, table tents, flyers and an online banner. Receives: Behavioral: Social norms campaign |
| Control | No intervention | Students in the schools assigned to the control group will not receive anything during the randomised controlled trial. They will receive the intervention materials after the trial. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Perceived adolescent smoking prevalence
Perceived prevalence of current smoking secondary school students in Hong Kong
Measured: At the time of survey
Smoking susceptibility
Intention to smoke in the next 12 months, if good friends are smoking in front, and if a good friend offered a cigarette
Measured: At the time of survey
Secondary outcomes (3)
Smoking intensity
Number of smoking days in the past 30 days, average daily cigarette consumption
Measured: Past 30 days
Intention to quit
Intention to quit
Measured: At the time of survey
Quit attempts
Number of quit attempts
Measured: Past 3 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted28 Aug 2017
- Study start13 Oct 2017
- Primary completionJul 2018 (estimated)
- Study completionJul 2018 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Tobacco UseStudies 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
- 12,868 participants (estimated)
Sponsor and investigators
- Lead sponsor
- The University of Hong Kong
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Dr. Daniel Sai-Yin Ho, The University of Hong Kong
- Investigators
- Sai Yin Ho, Dr, Principal investigator, The University of Hong Kong
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03264144
- Sponsor's protocol ID
- 17629016
- Status last verified
- May 2018
- First submitted
- 24 Aug 2017
- Last updated
- 3 May 2018
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 3 May 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Changing Social Norms Around Smoking: A Cluster Randomized Controlled Trial to Address Tobacco Use Among Adolescents in Hong Kong
- ClinicalTrials.gov ID
- NCT03264144
- Acronym / sponsor ID
- 17629016
- Conditions
- Tobacco Use
- Keywords
- Social norms, Adolescent, Smoking, Randomised controlled trial
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 12,868 participants (estimated)
- Lead sponsor
- The University of Hong KongUniversity, hospital or other
- Study start
- 13 Oct 2017 (actual)
- Primary completion
- Jul 2018 (estimated)
- Study completion
- Jul 2018 (estimated)
- First posted
- 28 Aug 2017 (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.
This study will examine the effectiveness of a social norms campaign in correcting smoking misperceptions, reducing smoking susceptibility and changing smoking-related behaviours in Hong Kong adolescents.
Detailed description
The study involves a behavioural intervention with social norms approaches to correct smoking misperceptions, reduce smoking susceptibility and change smoking-related behaviours in Hong Kong adolescents. A 2-arm stratified clustered randomised controlled trial (RCT) will be conducted to evaluate the effectiveness of the intervention. A total of 18 secondary schools will be randomly selected from the 5 regions in Hong Kong and invited to the RCT. The schools will then be randomly allocated to intervention or control group in the ratio of 1:1. Secondary 1 to 5 (US Grade 7 to 11) students will be invited. Students in both intervention and control group will complete a baseline survey, and the intervention group will receive the intervention after the baseline. Intervention materials includes posters and table tents at school, flyers to students, and online banner on school website. The intervention adopts social norms approaches, and will highlight the prevalence of adolescents who do not smoke and have no intention to smoke. It will last for 2 months. Both intervention and control groups will complete follow-up surveys at 3 and 9 months. The control group will receive the intervention materials after the RCT.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Intervention | Experimental | Behavioral: Social norms campaignStudents in the schools assigned to the intervention group will receive the intervention after the baseline survey. The intervention will be a social norms campaign involving posters, table tents, flyers and an online banner. |
| Control | No intervention | –Students in the schools assigned to the control group will not receive anything during the randomised controlled trial. They will receive the intervention materials after the trial. |
Who may qualify
- Ages
- 11 to 20 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult
Key inclusion criteria (1 listed)
- Local secondary schools that cover grades 1-6
Key exclusion criteria (2 listed)
- International secondary schools
- Special schools for adolescents with visual, hearing or other physical impairments or disabilities
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 |
|---|---|---|
| Social norms campaignIntervention messages will mainly highlight the prevalence of Hong Kong adolescents who do not smoke cigarettes and have no intention to smoke cigarettes. The messages will be conveyed to students through posters, table tents, flyers and an online banner. Posters will be posted at prominent places in schools, table tents will be placed in school canteens, flyers will be distributed to students, and the online banner will be placed at the school website. The intervention will last for 2 months. | Behavioural | Intervention |
Primary outcome
Perceived adolescent smoking prevalence
Time frame: At the time of survey
Perceived prevalence of current smoking secondary school students in Hong Kong
Smoking susceptibility
Time frame: At the time of survey
Intention to smoke in the next 12 months, if good friends are smoking in front, and if a good friend offered a cigarette
3 secondary outcomes
Smoking intensity
Time frame: Past 30 days
Intention to quit
Time frame: At the time of survey
Quit attempts
Time frame: Past 3 months
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 3 May 2018.
- Individual participant dataSharing planned: No
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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. This study is not recruiting at the moment.
Sai Yin Ho, Dr principal investigator
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 Social norms campaign in people with Tobacco Use, 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 1 inclusion and 2 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: status not confirmed, as of the sponsor's last update on 3 May 2018. 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?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Perceived adolescent smoking prevalence (time frame: At the time of survey). The study lists 2 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 3 May 2018.