About this trial
This study evaluates whether non-cigarette tobacco products (e-cigarettes) can help smokers quit smoking as compared to traditional quit methods (nicotine replacement therapy or varenicline/Chantix). Participants in this study will be randomly assigned to one of two groups, then will have a choice between the offered products of that group. Participants in the e-cigarette group will have a choice of e-cigarette brand and flavor. Participants in the medication group will have choice between nicotine replacement therapy (patches and lozenges) or varenicline, also known as Chantix. Participation will last 6 months and will include weekly phone calls for the initial 7-weeks plus a 11-week phone call and a 6-month follow-up visit. Participants will also complete electronic daily diaries during the first 7-weeks.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Adults 21+ who previously had a quit attempt using FDA-approved pharmacotherapy.
Interest in reducing harms from tobacco use or quitting smoking
Disqualifiers
Pregnant, breastfeeding, or trying to become pregnant.
Household member currently enrolled in the study
Planning to move out of the area within the next 7 months
Trial design
Parallel
Treatments tested in this trial
Switching to E-Cigarette
BehavioralParticipants will receive eleven weeks of e-cigarette products with instructions to switch completely at switch date
Switching using Medication
BehavioralParticipants will receive eleven weeks of FDA approved medication, either varenicline or combination NRT, with instructions to quit smoking cigarettes at quit date
Treatment groups
Trial outcomes
Primary outcomes
Biochemically-confirmed 7-day point prevalence abstinence from cigarettes on timeline followback
Self-reported zero cigarettes in the past 7 days on timeline followback at Week 11 + expired carbon monoxide \< 6 ppm
Secondary outcomes
Greater than 50% reduction in cigarette smoking
Average reduction in the number of cigarettes smoked per day on 7-day timeline followback at Week 11 of at least 50% or greater compared to average baseline number of cigarettes smoked per day on 7 day timeline followback
Sponsors and contacts
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Medical University of South Carolina
Lead sponsor
National Institute on Drug Abuse (NIDA)
Collaborator