Preloaded combination nicotine replacement therapy for smoking cessation in Kazakhstan: A randomized controlled trial...

Area of Science:

• Public Health
• Clinical Trials
• Addiction Medicine

Background:

• Tobacco use causes over 22,500 annual deaths in Kazakhstan, with rising smoking-related mortality despite control efforts.
• Combination nicotine replacement therapy (NRT) demonstrates higher long-term quit rates than single NRT formulations.
• Kazakhstan faces a significant public health challenge due to high smoking prevalence.

Purpose of the Study:

• To evaluate the effectiveness of preloaded combination NRT for smoking cessation.
• To assess changes in health-related quality of life following smoking cessation.
• To explore participant perceptions of treatment adherence with combination NRT.

Main Methods:

• A randomized, single-blind superiority trial involving 200 participants (100 per arm) in Astana, Kazakhstan.
• Participants aged 18+ motivated to quit will be randomized to receive preloaded combination NRT or fast-acting NRT alone.
• Primary outcome: sustained smoking abstinence at six months. Secondary outcomes: health-related quality of life and treatment adherence.

Main Results:

• The study is expected to provide evidence supporting the efficacy of combination NRT over fast-acting NRT alone.
• Anticipated findings may indicate improved long-term smoking cessation rates in the combination NRT group.
• Potential improvements in health-related quality of life are expected for successful quitters.

Conclusions:

• Combination NRT may be a more effective strategy for smoking cessation compared to single NRT.
• Findings could inform enhanced tobacco cessation strategies in Kazakhstan and similar high-prevalence regions.
• The study contributes to understanding the role of NRT in public health interventions.