RATIONALE: Computer-assisted stop-smoking plans and telephone counseling may help people stop smoking. It is not yet known which computer-based smoking cessation program is more effective with or without telephone counseling in helping smokers quit smoking. PURPOSE: This randomized clinical trial is studying two different computer-based smoking cessation programs to compare how well they work with or without telephone counseling in helping smokers quit smoking.
OBJECTIVES: * Compare the efficacy of premium internet intervention vs premium internet with telephone intervention vs basic internet intervention, as determined by 7-day point prevalence abstinence at 12 months, in adult smokers. * Compare the cost-effectiveness of these interventions in promoting smoking cessation. * Determine the effects of internet-based interventions on measured use of the intervention (frequency and duration of use, utilization of behavioral coping, expert advices, and e-mail) in these patients. * Determine the effects of internet-based interventions on variables important for behavior change including mediators (e.g., self-efficacy, use of internet social support) and moderators (e.g., gender, baseline motivation) of outcomes in these patients. OUTLINE: This is a randomized, controlled, multicenter study. Patients are stratified according to gender and baseline motivation level. Patients are randomized to 1 of 3 intervention arms. * Arm I (basic internet program): Patients are directed to a website of existing QuitNet™ smoking cessation materials. These materials are not tailored and have no interactive features. * Arm II (premium internet program): Patients receive free 6-month access to the QuitNet™ website including interactive and individualized intervention features. * Arm III (premium internet program plus telephone counseling): Patients receive free access to the QuitNet™ website as in arm II. Patients also receive up to 5 telephone counseling sessions, scheduled at their convenience. All patients are assessed at baseline and then at 3, 6, 12, and 18 months. PROJECTED ACCRUAL: A total of 2,205 patients will be accrued for this study.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Enrollment
2,205
Basic Internet control intervention
enhanced Internet cessation intervention
enhanced Internet plus proactive telephone counseling
Georgetown University
Washington D.C., District of Columbia, United States
Smoking abstinence as measured by 7-day point prevalence abstinence at 12 months following treatment
Time frame: 12 months
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