Smoking Clinical Trial
Official title:
Feasibility and Acceptability of a Text Messaging Intervention to Increase Smoking Cessation in Vietnam
The purpose of this study is to develop and then test the feasibility, acceptability, and preliminary effect of a bidirectional text message smoking cessation intervention among Vietnamese smokers in Hanoi, Vietnam. The specific aim are: 1) To develop a smoking cessation text message library among Vietnamese smokers; 2) To evaluate message preferences, and the feasibility and acceptability of the bidirectional text message smoking cessation intervention; and 3) To assess the preliminary effect of a bidirectional mobile phone text message intervention on biochemically validated smoking abstinence.
For two-arm randomized control (RCT) pilot study (AIM 3), 100 current smokers will be
observed to examine the preliminary effect of bidirectional SMS smoking cessation
intervention. Subjects will be randomized into two groups (intervention vs. control), and
compare the carbon monoxide (CO) validated 7-day point prevalence smoking abstinence rates at
4-week follow-up between intervention group (SMS smoking cessation treatment) and control
group (assessment texts only).
Investigators will administer surveys at baseline, 4- and 12-weeks, and assess daily
cigarette consumption using text message surveys. After the intervention, they will randomly
select 10 participants from the intervention group to attend semi-structured interviews to
obtain more in-depth understanding about the usefulness, usability, and acceptability of the
intervention. Findings from the pilot RCT will be used to derive an estimate of the effect
size, power, and sample size for a full-scale efficacy trial.
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