Designing a Smoking Intervention for Youth Smokers

This study aims to develop a typology-based intervention delivered by smoking cessation (SC) counsellors to prevent smoking relapse in ex-smokers who recently quit. The two main research questions include (1) Can a typology-based smoking relapse prevention intervention be feasible and accepted by the smokers and SC counsellors who deliver the new intervention? (2) What is the preliminary evidence on the efficacy of the typology-based smoking relapse prevention to increase tobacco abstinence in ex-smokers who have recently quit? If the intervention shows at least a small effect size (i.e. risk ratio\>1.3), or the intervention is feasible while modifications can potentially increase the efficacy, a future definitive RCT is warranted.

NCT Number	NCT07178899
Lead Sponsor	The University of Hong Kong
Conditions	Smoking (Tobacco) Addiction, Young Adult, RCT
Enrollment	100 participants
Start Date	2026-06-05
Primary Completion	2027-06-30 (estimated)
Study Completion	2027-06-30 (estimated)
Updated on ClinicalTrials.gov	2026-06-02