A Trial of Varenicline for E-cigarette Cessation
Start Date
10/14/2025
Completion Date
10/30/2030
Summary
This is randomized, placebo-controlled clinical trial in treatment-seeking adults who report regular e-cigarette use to test the hypothesis that varenicline is efficacious for quitting e-cigarettes.
Detailed Description
Participants will randomly be assigned to 12-weeks of varenicline (titrated to 2mg daily) or matching placebo plus brief cessation advice from a counselor and self-management resources. All participants will also complete research assessments every 3 weeks during treatment and a final follow-up visit at week 26. The primary objective is to test the efficacy of varenicline vs. placebo on e-cigarette quit rates. We will also evaluate predictors and moderators of outcomes and explore changes in health biomarkers following e-cigarette cessation treatment.
Eligibility Criteria
Age Range: 18 years to No maximum
Interventions
Varenicline 1mg BID
Placebo
Conditions
Locations
Yale Cancer Center/Smilow Cancer Hospital at Yale-New Haven
New Haven, Connecticut 06520
United States
Hollings Cancer Center at MUSC (HCC)
Charleston, South Carolina 29425
United States