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Guam school curriculum aims to curb teen vaping and betel nut use

NCT ID NCT05037656

Prevention Sponsor: University of Guam 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested a school-based curriculum designed to prevent e-cigarette, tobacco, and betel (areca) nut use among middle school students in Guam. Over 500 students from public schools participated, with some schools receiving the new curriculum and others continuing standard education. The program included five interactive lessons with videos and cultural activities. Researchers measured changes in self-reported use and willingness to try these substances.

What this could mean

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

Active substance
School-based prevention curriculum (behavioral intervention)
What this could lead to
If effective, this curriculum could reduce substance use and cancer risk among Guam youths, providing a model for other Pacific Island communities.
What could go wrong
This is a completed trial, but results are not yet widely published. The curriculum may not change long-term behavior, and findings may not apply outside Guam.

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

538 people

The number who actually took part.

Started

Sep 2022

Finished

Aug 2025

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

11 to 15 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * All students enrolled in public middle schools in Guam (age: 11-15 years old) * Provide signed parental informed consent and student assent Exclusion Criteria: * Participants whose parents decline participation or students who decline participation.

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Conditions

The condition(s) this trial relates to.

Tobacco Smoking Tobacco Use Vaping

As listed by the trial registrant

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

Tobacco chewing Tobacco smoking VAPING

Contacts and locations

Locations

  • Guam Department of Education

    Tiyan, Guam, Guam

More trials for these conditions

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