An interventional study of Basic health education messages and WeChat interactive peer support group in Self Efficacy and Health Behavior, sponsored by Chinese University of Hong Kong. Status unknown at 1 site in Hong Kong. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2018-01-02.
Sponsored by Chinese University of Hong Kong · Not applicable, Interventional, and Supportive care
Among 59 studies in Smoking Cessation with a site in Hong Kong — 10 open to participants now, 14 under way, none of them phase 3. Smoking Cessation · Hong Kong.
Among the 59 studies in Smoking Cessation with a site in Hong Kong, this one is the 22nd largest by planned enrollment of the 55 interventional ones that give a count, is one of 2 that started in 2015, is one of 55 with no phase, and was the 13th registered.
1,582 studies on the registry are indexed under Smoking Cessation; 198 are open to participants now.
Browse Smoking Cessation studies →10 of the 59 studies in Smoking Cessation with a site in Hong Kong are open now. Recruiting first, the newest first:
The University of Hong Kong · Sites in Hong Kong
The University of Hong Kong · Sites in Hong Kong
Ages 18+ · Healthy volunteers
Chinese University of Hong Kong · Sites in Hong Kong
Ages 18+
The University of Hong Kong · Sites in Hong Kong
Ages 18+ · Healthy volunteers
The Hong Kong Polytechnic University · Sites in Hong Kong
Ages 18+
A study can be open while its sites in Hong Kong have not opened yet or have stopped. Only those recruiting at a site in Hong Kong →
Of the 137 Smoking Cessation studies recruiting now, 93 (68%) set no upper age limit and 37 (27%) stop at 75 or younger; 6 take children under 18; 41 take healthy volunteers.
This study: 18 Years and older · all sexes · healthy volunteers too.
The full table on the hub →This tab as a report to print or save as PDF → With an account.
59 studies; the count open now beside each. This study's row is marked.
First in 2012; this study’s year is marked. 2 started in 2015.
This study's planned enrollment of 408 is above the median of 164 across 1,424 interventional studies indexed under Smoking Cessation.
Median enrollment 200 across the 55 interventional studies, 270 across the 4 observational. Of the 33 that completed or were terminated, 2 (6%) have results posted.
This tab as a report to print or save as PDF → With an account.
None of the 59 has an industry lead sponsor. The 4 most frequent:
Chinese University of Hong Kong is the lead sponsor of 1,454 studies on the registry; 474 are open to participants now.
Of its 6 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.
Chinese University of Hong Kong has 3 studies filed under Smoking Cessation — fewer than ten, so there is no comparison to draw.
6 of the studies in Smoking Cessation with a site in Hong Kong that are under way reach primary completion within a year, 0 of them phase 3. Phase 3 first, then by date:
| Study | Primary completion |
|---|---|
| NCT06234475The University of Hong KongSmoking Cessation Program for the Older Smokers | 2026-11 |
| NCT06932718The University of Hong KongSmoking Cessation Programme in Workplaces in Hong Kong (Phase ⅤII) | 2026-12-20 |
| NCT07649018The University of Hong KongGen AI Powered Behavioral Support Plus Chewing Gum Intervention for Construction Workers Who Smoke | 2027-05-31 |
| NCT07178899The University of Hong KongDesigning a Smoking Intervention for Youth Smokers | 2027-06-30 |
| NCT07649044The University of Hong KongPromoting Smoking Cessation in the Community Via "Quit to Win" Contest 2026: Engagement-Focused GenAI-based Chatbot for Real-Time Smoking Cessation Support | 2027-10-30 |
Add all 6 to your calendar (.ics) → With an account.
Among the 59 studies in Smoking Cessation with a site in Hong Kong, from their registry updates:
This tab as a report to print or save as PDF → With an account.
The proposed RCT evaluates the efficacy of the aforementioned novel 2-month online smoking cessation intervention in increasing 7-day point prevalence quit rate over a 6-month follow-up period among Chinese adult smokers in Hong Kong.
Aims and hypothesis: The proposed RCT evaluates the efficacy of the aforementioned novel 2-month online smoking cessation intervention in increasing 7-day point prevalence quit rate over a 6-month follow-up period among Chinese adult smokers in Hong Kong. It is hypothesized that the quit rate of the intervention group would be higher than that of the control group at 6 month follow up (i.e. one-sided hypothesis).
Design and subjects: The RCT study will randomize participants into the intervention group or the control group. Prior to randomization, a baseline telephone survey will be conducted. Phone interviews will be conducted to evaluate the outcomes at Months 3 and 6 after completion of the intervention. Interviewers will be blinded from the randomization status. The inclusion criteria are: i) current smokers who have smoked at least one cigarette in the past seven days prior to the baseline survey, ii) age 18 years old or above, iii) able to communicate in Chinese (Cantonese), iv) having access to a smart phone or mobile electronic devices and social networking media (WeChat), v) willing to be followed up (Months 3 and 6), vi) should own a smart phone or a similar device.
Study instruments: Structured questionnaires.
Interventions: The 2-month intervention includes i) interactive online support groups and ii) immediate preventive 'SOS' cue to action messages to be sent to fellow support group members in need via WeChat. Besides, basic health education messages will be sent to both the intervention and the control groups.
Main outcome measures: self-reported 7-day point prevalence (pp) quit rate of smokers at 6 months post end-of-intervention.
Data analysis and expected results: Baseline characteristics between the two groups will be compared using t-test and chi-square test as appropriate. To evaluate efficacy in terms of the primary outcome, absolute risk reduction (ARR), relative risk reduction (RRR) and number needed to treat (NNT) at Months 3 and 6 and their 95% confidence intervals will be derived. Mixed effects models will be used to compare the differential changes on the outcome variables across the time points Months 0, 3 and 6 between the two study arms with adjustment for potential confounding variables. Significance differences in smoking cessation will be found among the two groups.
1,582 studies on the registry are indexed under Smoking Cessation; 198 are open to participants now.
This study's planned enrollment of 408 is above the median of 164 across 1,424 interventional studies indexed under Smoking Cessation.
Browse Smoking Cessation studies →Chinese University of Hong Kong is the lead sponsor of 1,454 studies on the registry; 474 are open to participants now.
Of its 6 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.
Compared within Smoking Cessation, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Health Behavior. The counts are of registry records indexed under each term, refreshed daily. How we classify →
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Participants will be grouped together by the researcher to form closed online peer support groups (with group names they choose). Activities on the WeChat groups serve two functions: i) It enhances social support among peer members toward smoking cessation. ii) The online support group also enhances the participants' positive affect.
Behavioral: Basic health education messages · Behavioral: WeChat interactive peer support group
Members of the control group will receive health education messages that will also be sent to the intervention group through WeChat. The messages include topics on physical and psychological aspects of perceived severity of smoking and perceived benefits of smoking cessation, and tips/skills on resisting situational temptations that may lead to relapse.
Behavioral: Basic health education messages
Messages containing basic health education materials, including perceived severity of smoking, perceived benefit of smoking cessation and tips on resisting situational temptations will be sent to the participants of both arms through WeChat after randomization takes place.
Participants will be grouped together by the researcher to form closed online peer support groups (with group names they choose). Activities on the WeChat groups serve two functions: i) It enhances social support among peer members toward smoking cessation. ii) The online support group also enhances the participants' positive affect.
Self-reported 7-day point prevalence (pp) quit rate
Self-reported 7-day point prevalence (pp) quit rate of smokers at 6 months post end-of-intervention
Time frame: 6 months
Number of cigarettes consumed per day as compared to that of the baseline
Number of cigarettes consumed per day as compared to that of the baseline at 6 months post end-of-intervention
Time frame: 6 months
Positive and Negative Affect Scale score
Positive and Negative Affect Scale score as compared to that of the baseline at 6 months post end-of-intervention. Positive and Negative Affect Scale is consisted of two subscales, i.e. Positive Affect Scale (total score is ranged from 10 to 50, the higher value represents a better outcome) and Negative Affect Scale (total score is ranged from 10 to 50, the higher value represents a worse outcome). Two subscales will not be combined to compute a total score.
Time frame: 6 months
Smoking Self-Efficacy Questionnaire score
Smoking Self-Efficacy Questionnaire score as compared to that of the baseline at 6 months post end-of-intervention. The total score is ranged from 12 to 60. The higher values represents a better outcome.
Time frame: 6 months
Subjective Norms Scale score
Subjective Norms Scale score as compared to that of the baseline at 6 months post end-of-intervention. The total score is 6 to 30. The higher value represents a better outcome.
Time frame: 6 months
Attitude Towards Smoking Scale score
Attitude Towards Smoking Scale score as compared to that of the baseline at 6 months post end-of-intervention. The total score is ranged from 8 to 56. The higher values represents a better outcome.
Time frame: 6 months
Plan to share: No
No publications or documents are linked to this record.
Ran from Aug 2015 to primary completion in Jul 2017, 23 months.
Of 547 non-industry interventional studies with no phase under Smoking Cessation, half reached primary completion within 24 months of starting (the median), counting those still running; a quarter within 12 and three quarters within 45. This study's 23 months is close to that.
Counting every sponsor, half of 564 studies reached it within 24 months; a quarter within 12 and three quarters within 44.
How these figures are worked out, and which studies are left out of them.
This study is status unknown, as verified in Dec 2017. You cannot join it, but the record below documents what was studied.
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Chinese University of Hong Kong →