Back to Trials
NCT07040566PHASE2Recruiting

A Trial of Varenicline for E-cigarette Cessation

Yale University

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

Inclusion Criteria: * report daily use of an e-cigarette containing nicotine * live in Connecticut or South Carolina Exclusion Criteria: * regular use of other tobacco products besides e-cigarettes * medical contraindications for varenicline use * current treatment for tobacco cessation * lack proficiency in English

Interventions

DRUG

Varenicline 1mg BID

DRUG

Placebo

Interested in This Trial?

Contact the trial locations directly using the information below to learn more about enrollment.

Expressing interest lets you review the study and consent before we connect you with the research site.

Conditions

E-cigarette UseVapingNicotine Dependence

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