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Menthol ban study: will smokers switch or quit?

NCT ID NCT05259566

Knowledge-focused Sponsor: Yale University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This study tested how a menthol ban in cigarettes and e-cigarettes affects people who currently smoke menthol cigarettes. 151 adult smokers were asked to try different scenarios, like a ban on menthol cigarettes only or a total ban on menthol flavors. The goal was to see if they would smoke less or switch to e-cigarettes. The results could help guide future public health policies.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this research could help policymakers understand how a menthol cigarette ban might reduce smoking and whether menthol e-cigarettes help people switch away from cigarettes.
What could go wrong
This is a small, completed behavioral study, not a treatment trial. Results may not apply to all smokers, and real-world bans could have different effects.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

151 people

The number who actually took part.

Started

Dec 2022

Finished

Mar 2026

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

21 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Provision of signed and dated informed consent form * Age 21 or older * Able to read English * Currently smoking cigarettes * Willing to try e-cigarettes * In good general health Exclusion Criteria: * Seeking smoking cessation treatment * Serious psychiatric or medical condition * Use of other drugs * Unable or unwilling to complete study protocol * Contraindications for study procedures based on medical history

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Conditions

The condition(s) this trial relates to.

Tobacco Smoking Vaping

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Tobacco smoking

Contacts and locations

Locations

  • Yale University

    New Haven, Connecticut, 06520, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.