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Teens see vape labels: will warnings work?

NCT ID NCT06919276

Knowledge-focused Sponsor: University of Southern California 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looked at how different labels on vaping devices (like 'contains nicotine' or 'high potency') affect teens' interest in trying them, their views on health risks, and what effects they expect. Over 3,000 high school students viewed images of vaping devices with various labels and answered questions. The goal is to understand which labels might discourage use and inform future public health messaging.

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 could help design better warning labels that reduce teen vaping and cannabis use.
What could go wrong
This is a completed observational study with no treatment tested. The findings may not change real-world behavior or apply to all teens.

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

3,048 people

The number who actually took part.

Started

Mar 2025

Finished

Jun 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 19 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: * Participants must be enrolled in a partnering high school. Exclusion Criteria: * Participants who cannot independently understand study consent and the study surveys are ineligible.

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Conditions

The condition(s) this trial relates to.

cannabis dependence nicotine dependence Vaping

As listed by the trial registrant

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

Adolescent Cannabis Electronic cigarette use Nicotine VAPING

Contacts and locations

Locations

  • University of Southern California

    Los Angeles, California, 90032, United States

More trials for these conditions

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