A Trial of Varenicline for E-cigarette Cessation

NCT ID: NCT07040566

Last Updated: 2025-12-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

326 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-10-14

Study Completion Date

2030-10-30

Brief Summary

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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

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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.

Conditions

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E-cigarette Use Vaping Nicotine Dependence

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Adults who report regular e-cigarette use
Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Varenicline

Participants will randomly be assigned to 12-weeks of varenicline (titrated to 2mg daily) plus brief cessation advice with a counselor and self-management resources.

Group Type EXPERIMENTAL

Varenicline 1mg BID

Intervention Type DRUG

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

Placebo

Participants will randomly be assigned to 12-weeks of matching placebo plus brief cessation advice with a counselor and self-management resources.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Matching placebo twice daily

Interventions

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Varenicline 1mg BID

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

Intervention Type DRUG

Placebo

Matching placebo twice daily

Intervention Type DRUG

Eligibility Criteria

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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
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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National Cancer Institute (NCI)

NIH

Sponsor Role collaborator

Yale University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Lisa Fucito, PhD

Role: PRINCIPAL_INVESTIGATOR

Yale University

Benjamin Toll, PhD

Role: PRINCIPAL_INVESTIGATOR

Medical University of South Carolina

Locations

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

New Haven, Connecticut, United States

Site Status RECRUITING

Hollings Cancer Center at MUSC (HCC)

Charleston, South Carolina, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Lisa Fucito, PhD

Role: CONTACT

2032001470

Michael Fatigate, PhD

Role: CONTACT

Other Identifiers

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1R01CA296186-01

Identifier Type: NIH

Identifier Source: secondary_id

View Link

2000038513

Identifier Type: -

Identifier Source: org_study_id