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Can a brief chat help young people with psychosis cut back on pot?

NCT ID NCT04624074

Disease control Sponsor: University of Maryland, Baltimore 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Updated 1 time

Summary

This pilot study tested a counseling program called the Teen Marijuana Check Up, adapted for young adults (ages 13–35) who have early psychosis and use cannabis. The program uses motivational interviewing and personalized feedback over two sessions to help participants reduce or stop cannabis use. Researchers measured changes in cannabis use and psychosis symptoms in 17 participants enrolled in coordinated specialty care.

What this could mean

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

Active substance
behavioral intervention (Teen Marijuana Check Up adapted for psychosis)
What this could lead to
If successful, this could provide a practical counseling approach to help young people with psychosis cut back on cannabis and stay engaged in care.
What could go wrong
This is a very small pilot study with only 17 participants, so results may not apply broadly. The intervention is behavioral and may not work for everyone.

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

17 people

The number who actually took part.

Started

Jan 2021

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

13 to 35 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. Age 13-35 2. DSM-5 diagnosis of schizophrenia, schizoaffective disorder, schizophreniform disorder, brief psychotic disorder, delusional disorder, other specified schizophrenia spectrum and other psychotic disorder, and unspecified schizophrenia spectrum and other psychotic disorder 3. Duration of illness: ≤ 2 years 4. Enrolled at a Coordinated Specialty Care program 5. Report current use of cannabis 6. Ability and willingness to provide informed consent to participate Exclusion Criteria: 1\. Individuals who do not meet all inclusion criteria are excluded.

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Conditions

The condition(s) this trial relates to.

cannabis dependence delusional disorder schizoaffective disorder schizophrenia schizophreniform disorder

As listed by the trial registrant

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

Cannabis use disorder

Contacts and locations

Locations

  • University of Maryland School of Medicine

    Baltimore, Maryland, 21021, United States

More trials for these conditions

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