RecruitingPhase 2NCT07040566

A Trial of Varenicline for E-cigarette Cessation

Investigating Efficacious E-Cigarette Interventions and Cessation Effects on Cancer-Related Biomarkers: A Randomized Trial of Varenicline in Adults


Sponsor

Yale University

Enrollment

326 participants

Start Date

Oct 14, 2025

Study Type

INTERVENTIONAL

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.


Eligibility

Min Age: 18 Years

Inclusion Criteria2

  • report daily use of an e-cigarette containing nicotine
  • live in Connecticut or South Carolina

Exclusion Criteria4

  • regular use of other tobacco products besides e-cigarettes
  • medical contraindications for varenicline use
  • current treatment for tobacco cessation
  • lack proficiency in English

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Interventions

DRUGVarenicline 1mg BID

12 weeks following the standard titration of 1 mg, twice daily

DRUGPlacebo

Matching placebo twice daily


Locations(2)

Yale Cancer Center/Smilow Cancer Hospital at Yale-New Haven

New Haven, Connecticut, United States

Hollings Cancer Center at MUSC (HCC)

Charleston, South Carolina, United States

View Full Details on ClinicalTrials.gov

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NCT07040566