About this trial
This study uses a factorial optimization experiment to identify which treatment components help adults who smoke and are not ready to quit in the next 30 days (smokers not ready to quit, or SNRTQ) achieve smoking cessation. Participants are recruited through Federally Qualified Health Centers (FQHCs) in Virginia and West Virginia. All participants receive at least 8 weeks of nicotine replacement therapy (NRT) patch. Using a 2×2×2×2 factorial design, the study independently tests four components: a pharmacist-delivered behavioral program (VergeRx), a text-message support program (SmokefreeTXT), the addition of an NRT lozenge to the patch, and an extended 16-week course of the NRT patch versus the standard 8 weeks. The goal is to estimate the effect of each component on biochemically confirmed smoking abstinence so that an optimized treatment package can be assembled. The primary outcome is abstinence at 26 weeks; a secondary outcome is abstinence at 52 weeks.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Not ready to quit smoking in the next 30 days
Age ≥ 18 years
Able to read, speak, and understand English
Report smoking ≥ 5 cigarettes per day for the past 6 months
Disqualifiers
Currently pregnant, or planning to become pregnant in the next 6 months
Trial design
Factorial
Treatments tested in this trial
VergeRx
BehavioralUp to three pre-quit modules delivered by a local pharmacist/technician to promote NRT adherence; upon reported readiness to quit (assessed at weekly REDCap check-ins), participants advance to six treatment sessions over four weeks. Component ends if readiness is not reported after four weekly check-ins.
SmokefreeTXT
BehavioralUp to three 7-day pre-quit "Daily Challenges" text modules; upon reported readiness to quit, the SmokefreeTXT program delivers 3-5 messages/day for seven weeks. Component ends if readiness is not reported after four weekly check-ins.
NRT Lozenge (Combination)
DrugNicotine lozenge provided in addition to the NRT patch (combination NRT vs. patch monotherapy).
Extended NRT Patch (16 weeks)
DrugNicotine patch provided for 16 weeks.
Standard NRT Patch (8 weeks)
DrugNicotine patch provided for 8 weeks (all participants receive at least 8 weeks of patch beginning Week 1).
Treatment groups
16
Treatment groupsSee each treatment group below.
Trial outcomes
Primary outcomes
Biochemically confirmed 7-day point prevalence cigarette abstinence at 26 weeks
Point prevalence abstinence, defined as no cigarette smoking (not even a puff) within the past 7 days, biochemically confirmed using a CoVita Smokerlyzer carbon monoxide (CO) monitor at the FQHC. Participants unable to travel who report no combustible tobacco use are mailed a cotinine test completed via Zoom. Participants who do not provide outcome data are classified as smoking.
Secondary outcomes
Biochemically confirmed 7-day point prevalence cigarette abstinence at 52 weeks
Same definition and biochemical confirmation procedure as the primary outcome (no smoking within the past 7 days; CO-verified, with mailed cotinine confirmation via Zoom when travel is not possible; missing data classified as smoking), assessed at the 52-week follow-up to evaluate cessation maintenance.
Other outcomes
Motivation to quit
Self-reported motivation/readiness to quit smoking, assessed by questionnaire at each assessment point.
Cigarettes smoked per day
Self-reported number of cigarettes smoked per day.
Adherence to NRT
Adherence measured as the percentage of dispensed NRT patch and/or lozenge that was used.
Frequency of urges to smoke
Self-reported frequency of urges to smoke (Strength of Urges to Smoke measure).
Sponsors and contacts
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University of Virginia
Lead sponsor
National Cancer Institute (NCI)
Collaborator
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