Smoking Cessation Intervention for Young Adults Using MTM: A Randomized Controlled Trial

Study Summary

The goal of this clinical trial is to evaluate whether a Multi-Theory Model (MTM)-based behavioral intervention can effectively promote smoking cessation and support behavior change in young adult cigarette smokers aged 18 to 29 in the United States. This trial focuses on whether applying theory-driven strategies such as emotional transformation, behavioral confidence, and participatory dialogue can lead to higher smoking abstinence rates and improved psychosocial outcomes compared to a standard knowledge-based smoking education control group. The main questions it aims to answer are: * Does the intervention lead to a greater reduction in nicotine dependence scores (measured by the Fagerström Test for Nicotine Dependence \[FTND\]) and an increase in quit rate among young adult smokers from baseline to 12-week follow-up? * Does the MTM-based intervention significantly improve 7-day point prevalence abstinence (PPA) at 12 weeks compared to a knowledge-based control group? * Does the intervention result in significant positive changes in MTM constructs such as participatory dialogue, behavioral confidence, emotional transformation, practice for change, and changes in the physical and social environment from baseline to 12-week follow-up? Researchers will compare the MTM-based intervention group (experimental arm) to a knowledge-based smoking education control group to determine whether the theory-driven program is more effective in supporting smoking cessation and behavior change among young adult smokers. Participants will: * Complete surveys at three time points: baseline (Week 0), post-intervention (Week 5), and follow-up (Week 12), covering demographics, smoking history, nicotine dependence (FTND), MTM constructs (via a validated 48-item scale), and self-reported quit rates. * Be randomly assigned to one of two groups: o MTM-Based Intervention Group: Attend four weekly 90-minute virtual group sessions covering: Week 1: Participatory dialogue, behavioral conf

Primary Outcome

This outcome measures changes in nicotine dependence using the Fagerström Test for Nicotine Dependence (FTND), a validated 6-item questionnaire assessing the intensity of physical addiction to nicotine. Scores range from 0 to 10, with higher scores indicating greater dependence. Participants complete the FTND at baseline (pre-intervention) and again at the 12-week follow-up. The difference in scores over time is used to evaluate whether the intervention reduces nicotine dependence among young ad

Interventions

• BEHAVIORAL Multi-Theory Model (MTM)-Based Smoking Cessation Program