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Can a quick lesson clean up cigarette and vape waste? new study aims to find out

NCT ID NCT05751369

Knowledge-focused Sponsor: California State University, San Marcos 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 This study
Running, but no longer taking on new participants.
Completed
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 1 time

Summary

This study looks at whether teaching college students about the waste from tobacco, e-cigarettes, and cannabis can improve their knowledge and behavior. About 400 students from two California universities will take part. They will receive brief education and support, and researchers will track changes in what they know and how they handle this waste over six months.

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 show that simple education helps people better understand and reduce waste from tobacco, e-cigarettes, and cannabis.
What could go wrong
This is a small, early-stage study on two campuses, so results may not apply to other groups or settings. It only measures short-term changes.

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

About 400 people

The number the study aims to enrol. It can still change while the study runs.

Started

Mar 2023

Expected to finish

Jun 2026

An estimate. End dates often move.

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

18 to 25 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: * student at University of California, Davis or California State University San Marcs * between the ages of 18 and 25 * taking at least one class on the main campus * at least six months until graduation * have a smart phone with location services enabled for apps * regular access to a device with sufficient WiFi * private space for three remote visits on over the next six weeks and one visit in six months * willing to have camera on during remote visits Exclusion Criteria: * None

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Conditions

The condition(s) this trial relates to.

Behavior

As listed by the trial registrant

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

Knowledge, attitudes, practice

Contacts and locations

Locations

  • California State University San Marcos

    San Marcos, California, 92096, United States

  • University of California, Davis

    Davis, California, 95616, United States

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