Comparative Effectiveness ResearchNCT01671553
Helping Smokers to Quit Via the Smoke-free Teen Contest 2011: A Randomized Controlled Trial
A study testing Counseling group in people with Comparative Effectiveness Research, run by The University of Hong Kong at 1 site in China.
Trial summary
Background The home is the primary source of SHS exposure. The scientific evidence shows that there is no risk-free level of exposure to SHS that stop smoking is the sole way to completely eliminate the risk of SHS exposure. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Comparative Effectiveness Research
- What is being tested?
- Counseling group
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 269 participants
- Where
- 1 siteChina
- Study dates
- Oct 2011to Oct 2012
- 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 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Hong Kong residents aged 18 or above
- Able to communicate in Cantonese
- Intend to quit smoking
Who cannot join
- Smokers who are psychologically or physically unable to communicate
- Currently following other forms of smoking cessation programme
- Have a previous history of allergy to NRT patch or gum
Trial locations and contacts
1 site in 1 country.
China1 site, 1 recruiting
- Recruiting
The University of Hong Kong
Hong Kong SAR
Sophia SC Chan, PhD
About this study
Background The home is the primary source of SHS exposure. The scientific evidence shows that there is no risk-free level of exposure to SHS that stop smoking is the sole way to completely eliminate the risk of SHS exposure. Although research studies indicated that smoking bans in restaurants, bars, and workplaces can significantly reduce the level of SHS exposure, governments lack the authority to restrict smoking in homes. Therefore, parental cessation is a more effective means to reduce the SHS exposure.
Aim The aims are (1) to promote smoking cessation in the community and (2) assess the effect of different smoking cessation approaches through the Smoke-free Teen Contest. The specific objectives of the study are to test the effectiveness of different smoking cessation approaches on quit rate and change in smoking behaviours among smokers who are referred by Hong Kong Council on Smoking and Health (COSH).
Read more
Methods The referred smokers were nominated by primary 1 to secondary 3 students who joined the Smoke-free Teen Contest organized by COSH. Two domains of outcome will be assessed: (1) the primary outcome is the self-reported 7-day point prevalence (pp) quit rate at 6 months and (2)the secondary outcomes included (i) biochemical validated quit rate at 6 months and (ii) rate of smoking reduction by at least of half and (iii) number of quit attempts at 6 months.
Procedure Smokers, who are referred by the Hong Kong Council on Smoking and Health (COSH), were nominated by primary 1 to secondary 3 students joined Smoke-free Teen Contest organized by COSH. Those smokers will be randomized into two groups (Intervention group and Control group) using the clustered randomization method by school. After the clustered randomization, the oral consent of eligible subjects were obtained to the study through telephone interview. Intervention group will receive 1,2,3, 8-week and 6-month telephone follow-up after baseline, while control group will only receive 6-month telephone follow-up after baseline. Those participants who reported to have stopped smoking will be invited for biochemical validation of smoking status at 6-month follow-up.
Hypothesis We hypothesize that the intensive telephone counselling plus NRT treatment will lead to significant increases in rates of smoking cessation in the intervention groups than the control group.
Read the detailed description
Smoking is the single most preventable cause of deaths in Hong Kong and the smoking prevalence was about 11.8% (20.5% in males and 3.6% in females) in 2008. It was estimated that smoking accounts for about one fifth of all deaths and kills about 5,700 people per year. Smoking has been associated with serious damage to health at all ages, leading to cancers, heart diseases, stroke, chronic lung diseases, and many other health problems. It was estimated in 1998 that a total of US$688 million medical cost were attributed to smoking-related diseases annually, with active smoking accounted for 77% and passive smoking 23% of the total cost. However, it is difficult for smokers to quit smoking without assistance because smoking is addictive, and most smokers prefer to try and quit on their own rather than seeking treatment, thus it is hard to reach those smokers who do not present themselves for treatment. On the other hand, a previous study also indicated that high quit rate (38%) could be achieved for those smokers who received a 6-week supply of free NRT plus telephone counselling and self-help materials.
Consistent findings from previous studies demonstrated that social support appears to be one of the strongest determinants of success at quitting smoking and remaining abstinent. Ward and Klesges showed that social (family) support affects smoking outcome and may influence readiness to quit. In a US study, family support was reported to be the most significant predictor, compared to peer and significant-other support, on the experiential and behavioral processes of change in a smoking cessation program for adult smokers. Similar results were also found in a local study on the motivation to reduce smoking among smokers who are not willing to quit. It is therefore imperative to involve a family member as the first point of contact in the health care system regarding supporting their smoking family members in the quitting process.
In Hong Kong, 33.6% of fathers and 2.6% of mothers smoke. Nevertheless, only 1.8% male smokers had tried smoking cessation service and among those who had not tried any, 86.1% reported that they would not try the service. Establishing rapport with schools and building capacity in tobacco control in students could be a feasible way to engage smokers in tobacco control advocacy. This could also help smokers who may not have access to services which assists them in quitting smoking.
To fill those aforementioned gaps, in this proposed project, all primary school students and junior forms of secondary school students are mobilized for the establishment of smoke-free homes. They play an active role in advocating for a 'Smoke-free Environment' in their home by nominating, encouraging and supporting their family members and relatives to quit smoking.
- Conditions
- Comparative Effectiveness Research
- Being tested
- Counseling group
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Counseling groupBehavioural
The content for the brief counseling group adopts a AWARD approach including asking the smoking habit, warning about the health risks associated with smoking, advising the smokers to quit, referring to specialized service, and repeating the above message. Additional telephone follow-up counseling at 1, 2, 3 and 8-week will be made to the participants in this group.
| Study group | Role | What they receive |
|---|---|---|
| Counseling group | Experimental | Study participants in the intervention group were received an intensive smoking cessation telephone counselling with 2-weeks free and 6-weeks discount nicotine replacement therapy (NRT). Receives: Behavioral: Counseling group |
| Control group | No intervention | Study participants in the control group were not received any quitting assistance other than the self-help materials provided by Hong Kong Council on Smoking and Health (COSH). |
What is being measured
The primary outcome is the main question the study is designed to answer.
The self-reported 7-day point prevalence (pp) quit rate at 6 months
Whether the participant has quitted smoking in the past seven days at the time point of 6 months
Measured: Six months
Secondary outcomes (1)
Biochemical validated quit rate at 6 months
- Test the cotinine level in the saliva provided by the participants
- Rate of smoking reduction by at least of half
- Number of quit attempts at 6 months
Measured: Six months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted23 Aug 2012 (estimated)
- Study startOct 2011
- Primary completionJul 2012
- Study completionOct 2012 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Comparative Effectiveness ResearchStudies 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
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 269 participants (estimated)
Sponsor and investigators
- Lead sponsor
- The University of Hong Kong
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Prof. Sophia Siu-chee Chan, The University of Hong Kong
- Investigators
- Sophia SC Chan, PhD, Principal investigator, HKU
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01671553
- Sponsor's protocol ID
- COSH-SmokefreeTeen
- Status last verified
- Aug 2012
- First submitted
- 20 Aug 2012
- Last updated
- 23 Aug 2012
- Results posted
- No
- Data monitoring committee
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 23 Aug 2012. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Helping Smokers to Quit Via the Smoke-free Teen Contest 2011: A Randomized Controlled Trial
- ClinicalTrials.gov ID
- NCT01671553
- Acronym / sponsor ID
- COSH-SmokefreeTeen
- Conditions
- Comparative Effectiveness Research
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 269 participants (estimated)
- Lead sponsor
- The University of Hong KongUniversity, hospital or other
- Study start
- Oct 2011
- Primary completion
- Jul 2012 (actual)
- Study completion
- Oct 2012 (estimated)
- First posted
- 23 Aug 2012 (estimated)
- 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.
Background The home is the primary source of SHS exposure. The scientific evidence shows that there is no risk-free level of exposure to SHS that stop smoking is the sole way to completely eliminate the risk of SHS exposure. Although research studies indicated that smoking bans in restaurants, bars, and workplaces can significantly reduce the level of SHS exposure, governments lack the authority to restrict smoking in homes. Therefore, parental cessation is a more effective means to reduce the SHS exposure.
Aim The aims are (1) to promote smoking cessation in the community and (2) assess the effect of different smoking cessation approaches through the Smoke-free Teen Contest. The specific objectives of the study are to test the effectiveness of different smoking cessation approaches on quit rate and change in smoking behaviours among smokers who are referred by Hong Kong Council on Smoking and Health (COSH).
Methods The referred smokers were nominated by primary 1 to secondary 3 students who joined the Smoke-free Teen Contest organized by COSH. Two domains of outcome will be assessed: (1) the primary outcome is the self-reported 7-day point prevalence (pp) quit rate at 6 months and (2)the secondary outcomes included (i) biochemical validated quit rate at 6 months and (ii) rate of smoking reduction by at least of half and (iii) number of quit attempts at 6 months.
Procedure Smokers, who are referred by the Hong Kong Council on Smoking and Health (COSH), were nominated by primary 1 to secondary 3 students joined Smoke-free Teen Contest organized by COSH. Those smokers will be randomized into two groups (Intervention group and Control group) using the clustered randomization method by school. After the clustered randomization, the oral consent of eligible subjects were obtained to the study through telephone interview. Intervention group will receive 1,2,3, 8-week and 6-month telephone follow-up after baseline, while control group will only receive 6-month telephone follow-up after baseline. Those participants who reported to have stopped smoking will be invited for biochemical validation of smoking status at 6-month follow-up.
Hypothesis We hypothesize that the intensive telephone counselling plus NRT treatment will lead to significant increases in rates of smoking cessation in the intervention groups than the control group.
Detailed description
Smoking is the single most preventable cause of deaths in Hong Kong and the smoking prevalence was about 11.8% (20.5% in males and 3.6% in females) in 2008. It was estimated that smoking accounts for about one fifth of all deaths and kills about 5,700 people per year. Smoking has been associated with serious damage to health at all ages, leading to cancers, heart diseases, stroke, chronic lung diseases, and many other health problems. It was estimated in 1998 that a total of US$688 million medical cost were attributed to smoking-related diseases annually, with active smoking accounted for 77% and passive smoking 23% of the total cost. However, it is difficult for smokers to quit smoking without assistance because smoking is addictive, and most smokers prefer to try and quit on their own rather than seeking treatment, thus it is hard to reach those smokers who do not present themselves for treatment. On the other hand, a previous study also indicated that high quit rate (38%) could be achieved for those smokers who received a 6-week supply of free NRT plus telephone counselling and self-help materials.
Consistent findings from previous studies demonstrated that social support appears to be one of the strongest determinants of success at quitting smoking and remaining abstinent. Ward and Klesges showed that social (family) support affects smoking outcome and may influence readiness to quit. In a US study, family support was reported to be the most significant predictor, compared to peer and significant-other support, on the experiential and behavioral processes of change in a smoking cessation program for adult smokers. Similar results were also found in a local study on the motivation to reduce smoking among smokers who are not willing to quit. It is therefore imperative to involve a family member as the first point of contact in the health care system regarding supporting their smoking family members in the quitting process.
In Hong Kong, 33.6% of fathers and 2.6% of mothers smoke. Nevertheless, only 1.8% male smokers had tried smoking cessation service and among those who had not tried any, 86.1% reported that they would not try the service. Establishing rapport with schools and building capacity in tobacco control in students could be a feasible way to engage smokers in tobacco control advocacy. This could also help smokers who may not have access to services which assists them in quitting smoking.
To fill those aforementioned gaps, in this proposed project, all primary school students and junior forms of secondary school students are mobilized for the establishment of smoke-free homes. They play an active role in advocating for a 'Smoke-free Environment' in their home by nominating, encouraging and supporting their family members and relatives to quit smoking.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Counseling group | Experimental | Behavioral: Counseling groupStudy participants in the intervention group were received an intensive smoking cessation telephone counselling with 2-weeks free and 6-weeks discount nicotine replacement therapy (NRT). |
| Control group | No intervention | –Study participants in the control group were not received any quitting assistance other than the self-help materials provided by Hong Kong Council on Smoking and Health (COSH). |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Hong Kong residents aged 18 or above
- Able to communicate in Cantonese
- Intend to quit smoking
Key exclusion criteria (3 listed)
- Smokers who are psychologically or physically unable to communicate
- Currently following other forms of smoking cessation programme
- Have a previous history of allergy to NRT patch or gum
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 |
|---|---|---|
| Counseling groupThe content for the brief counseling group adopts a AWARD approach including asking the smoking habit, warning about the health risks associated with smoking, advising the smokers to quit, referring to specialized service, and repeating the above message. Additional telephone follow-up counseling at 1, 2, 3 and 8-week will be made to the participants in this group. | Behavioural | Counseling group |
Primary outcome
The self-reported 7-day point prevalence (pp) quit rate at 6 months
Time frame: Six months
Whether the participant has quitted smoking in the past seven days at the time point of 6 months
1 secondary outcome
Biochemical validated quit rate at 6 months
Time frame: Six months
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 23 Aug 2012.
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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.
Sophia SC Chan, PhD principal investigator
HKU
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Counseling group in people with Comparative Effectiveness Research, run by The University of Hong Kong at 1 site in China.
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 3 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 23 Aug 2012. 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 China. 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?
Contact Sophia SC Chan, PhD (852-28192622, nssophia@hku.hk), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
The self-reported 7-day point prevalence (pp) quit rate at 6 months (time frame: Six months). 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 23 Aug 2012.