Helping dual users of cigarettes and e-cigarettes quit smoking

Dual Use Cessation: A MOST Screening Trial to Identify Effective Interventions to Help People Who Smoke and Vape

Phase 4 Interventional University of Wisconsin, Madison · NCT06474299

This study is testing different ways to help people who smoke both cigarettes and e-cigarettes quit for good by using medications and counseling.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment500 (estimated)
Ages21 Years and up
SexAll
SponsorUniversity of Wisconsin, Madison Academic / other
Locations1 site (Madison, Wisconsin)
Trial IDNCT06474299 on ClinicalTrials.gov

What this trial studies

This research aims to identify the most effective methods for assisting individuals who use both cigarettes and electronic nicotine delivery systems (ENDS) in quitting smoking. The study will enroll 500 participants and utilize a randomized factorial design to test various combinations of pharmacotherapy and counseling approaches. Participants will receive either varenicline or nicotine patches, along with counseling that varies in intensity and focus. The goal is to optimize interventions that encourage quitting both smoking and vaping.

Who should consider this trial

Good fit: Ideal candidates are individuals who smoke at least 5 cigarettes per day and vape weekly, and are motivated to quit smoking within the next 30 days.

Not a fit: Patients who are currently pregnant, breastfeeding, or have untreated psychosis or bipolar disorder may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a more effective approach for dual users to quit smoking and improve their overall health.

How similar studies have performed: Other studies have shown promise in using combined pharmacotherapy and counseling approaches for smoking cessation, making this a potentially effective strategy.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Able to read and communicate in English
* Willing to set a quit date to quit smoking cigarettes in the next 30 days
* Willing and medically able to use varenicline and nicotine patches
* Smoking ≥ 5 cigarettes per day for the past 6 months
* Vaping weekly for at least 6 months
* Willing to stop using nicotine replacement or varenicline
* Willing to stop using bupropion (i.e., Wellbutrin, Zyban) if they are currently using it only for smoking cessation
* Saliva cotinine \>20 ng/ml
* US resident
* Own a Smartphone to use and download an app to record data
* have a working email so that they can receive links for video visits

Exclusion Criteria:

* Currently in treatment for psychosis or bipolar disorder
* If they are currently taking bupropion for non-smoking cessation reasons (e.g., Wellbutrin for depression)
* Currently pregnant or breastfeeding. If a participant becomes pregnant while in the study, they will be allowed to continue in the study but will no longer receive study medications. They will also be asked to return any unused study medications.

Where this trial is running

Madison, Wisconsin

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Smoking CessationElectronic Cigarette UseENDSCessation
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.