Impact of Menthol on E-Cigarette Users' Addiction and Exposure

The Effect of Menthol on ENDS Users' Dependence, Respiratory, and Toxicants Emission Outcomes.

Not applicable Interventional Florida International University · NCT05338801

This study is testing how menthol-flavored e-cigarettes affect addiction and exposure to harmful substances in young adults aged 21-35.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment250 (estimated)
Ages21 Years to 35 Years
SexAll
SponsorFlorida International University Academic / other
Locations1 site (Miami, Florida)
Trial IDNCT05338801 on ClinicalTrials.gov

What this trial studies

This study investigates how menthol-flavored e-cigarettes affect addiction levels and exposure to harmful substances among users aged 21-35. It aims to understand the influence of menthol on puffing patterns and nicotine dependence, particularly in the context of rising e-cigarette use among young people. Participants will be required to abstain from e-cigarette use for 12 hours before each session, during which they will use either menthol or tobacco-flavored e-cigarettes. The findings could provide insights into the health implications of menthol in e-cigarettes and inform regulatory decisions.

Who should consider this trial

Good fit: Ideal candidates for this study are generally healthy e-cigarette users aged 21-35 who have abstained from e-cigarette use for 12 hours prior to each session.

Not a fit: Patients who smoke cigarettes regularly or use other tobacco products may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to better understanding and regulation of menthol-flavored e-cigarettes, potentially reducing addiction and health risks for users.

How similar studies have performed: While there is ongoing research into the effects of flavoring in tobacco products, the specific focus on menthol in e-cigarettes is relatively novel and has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Generally healthy individuals (determined by physical examination).
* Age of 21-35 years.
* Is willing to provide informed consent.
* Is willing to attend the lab as required by the study protocol.
* E-cigarette users (defined as using e-cigarette either daily or occasionally in the past 30 days)
* Have abstained from e-cigarette use for 12 hours prior to each session

Exclusion Criteria:

* Report smoking cigarettes regularly (\> 5 cigarettes/month in the past year).
* Report regular use of any other tobacco/nicotine product (e.g., e-cig, pipes, cigars) in the past year.
* Women who are breast-feeding or test positive for pregnancy (by urinalysis at screening).
* Individuals with self-reported history of chronic disease or psychiatric conditions.
* Individuals with history of or active cardiovascular disease, low or high blood pressure, seizures, and regular use of prescription medications (other than vitamins or birth control).
* Individuals that report current THC (marijuana) smoking/vaping.
* Individuals that report current EVALI or COVID-19 related symptoms (i.e., cough, shortness of breath, chest pain, nausea, vomiting, abdominal pain, diarrhea, fever, chills, or weight loss)
* Individuals that have or have been exposed to COVID-19 in the last 14 days.

Where this trial is running

Miami, Florida

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 Electronic Cigarette UseMenthol FlavorTobacco Flavor
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.