Clinical trial Recruiting at 1 site Interventional Ages 21 and up

Comparing menthol and tobacco-flavored e-cigarettes for adult menthol smokers

Official title: The Impact of Menthol Flavoring on Switching in Adult Menthol Smokers

Run by University of Kansas Medical Center · NCT05555069 · Data updated 2026-11-12

This study tests whether menthol-flavored e-cigarettes help adult menthol smokers switch from regular cigarettes better than tobacco-flavored ones.

More Smoking Reduction trials

Quick facts

Study typeInterventional
Ages21 Years and up
SexAll
Enrollment800 (estimated)
SponsorUniversity of Kansas Medical Center
Academic / other
Locations1 site (Kansas City, Missouri)
StatusRecruiting
StartedNovember 8, 2022
Main results expectedDecember 31, 2026
Study endsMarch 31, 2027
Registry record updatedOctober 13, 2026
Trial IDNCT05555069 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 21 and older who smoke at least 5 menthol cigarettes per day and are interested in switching to e-cigarettes.

Probably not a fit

Patients who are actively seeking to quit smoking or have used other tobacco products recently may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study evaluates how effective menthol-flavored e-cigarettes are compared to tobacco-flavored ones in helping adult menthol smokers switch from combustible cigarettes to e-cigarettes. A total of 800 menthol smokers will be randomly assigned to use either flavor for 12 weeks, with follow-up extending to 26 weeks. The primary goal is to measure the rate of switching from traditional cigarettes to e-cigarettes at the 12-week mark.

Why it matters

Potential benefit: If successful, this study could provide a more effective method for menthol smokers to transition away from combustible cigarettes, potentially improving their health outcomes.

How similar studies have gone: Other studies have shown varying degrees of success with e-cigarette interventions, but this specific comparison of menthol versus tobacco flavors is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* ≥ 21 years of age
* Smoke ≥ 5 cigarettes per day (CPD)
* Smoke menthol cigarettes for ≥ 6 months
* Verified smoker (CO \>5ppm)
* Functioning telephone
* Interested in switching to E-cigarettes

Exclusion Criteria:

* Interested in quitting smoking
* Use of other tobacco products in past 30 days (i.e. cigarillos, cigars, hookah, smokeless tobacco, pipes)
* E-cigarette use on ≥ 4 of the past 30 days
* Uncontrolled hypertension: BP ≥ 180(systolic) or ≥ 105 (diastolic)
* Use of smoking cessation pharmacotherapy in the month prior to enrollment
* Pregnant, contemplating getting pregnant, or breastfeeding
* Plans to move from Kansas City during the treatment and follow-up phase
* Another household member enrolled in the study

Where it's running

  • University of Kansas Medical Center
    Kansas City, Missouri, United States
    Recruiting

Study contacts

  • Principal investigator: Nicole Nollen, PhD — University of Kanas Medical Center
  • Study coordinator: Tricia Snow
  • Email: psnow@kumc.edu
  • Phone: 816-398-8960

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.