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Can a text message program help young adults quit cannabis?

NCT ID NCT04567394

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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

Summary

This study tests a text-message counseling program designed to help young adults ages 18 to 25 reduce or stop their cannabis use. Participants must use cannabis at least three days a week and live in Tennessee or Colorado. The program uses peer support and counseling delivered via text to encourage healthier habits.

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

1,077 people

The number who actually took part.

Started

Aug 2019

Expected to finish

May 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

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: 1. 18 to 25 years old. 2. use of cannabis three or more days during a typical week. 3. a score of at least eight on the Cannabis Use Disorder Identification Test-Revised 4. a urine specimen positive for cannabis metabolites. 5. a score of at least two on the Mini International Neuropsychiatric Interview: Version 7.0.2 for DSM-V, Substance Use Disorder 6. must live in Tennessee or Colorado Exclusion Criteria: 1. substance abuse treatment during the past three months. 2. lack of access to a text-capable phone. 3. unable or unwilling to commit to six months of follow-up. 4. not fluent in English.

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Conditions

The condition(s) this trial relates to.

cannabis dependence follicular lymphoma

As listed by the trial registrant

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

Cannabis use disorder, mild Cannabis use disorder, moderate Cannabis use disorder, severe

Contacts and locations

Locations

  • Colorado State University

    Fort Collins, Colorado, 80523, United States

  • University of Tennessee Knoxvile

    Knoxville, Tennessee, 37996, United States

More trials for these conditions

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