Cannabis UseCannabis DependenceCannabis Use DisorderCannabis AbuseCannabis IntoxicationCannabis SmokingCannabis WithdrawalCannabis-Related DisorderCannabis Abuse, in RemissionCannabis Abuse, Episodic UseMarijuanaMarijuana AbuseMarijuana UseMarijuana SmokingMarijuana DependenceMarijuana UserMarijuana-Related DisorderMarijuana Use DisorderAddictionAddiction, SubstanceSubstance UseSubstance Use DisordersSubstance DependenceSubstance AbuseSubstance Related ProblemSubstance Abuse Drug Chronic
No Placebo Group
Every participant receives an active treatment — no one gets a placebo.
Ready to participate?
Review the details below, then apply to join this clinical trial.
At a Glance
Age
14 – 17
Sex
Any
Study type
Interventional
Purpose
Treatment
Participants needed
80 (estimated)
Sponsor
Indiana University · Other
Who this trial is looking for
This trial is looking for teens aged 14 to 17 who want to reduce their cannabis use. Participants will complete a brain scan and join 10 weekly online sessions where they will report their cannabis use and take drug tests at home. They can earn prizes for staying cannabis-free.
Are You a Good Fit for This Trial?
You may be able to join if
I am between 14 and 17 years old.
My guardian is 18 years or older.
I have used cannabis at least once a week in the past month.
I have been diagnosed with cannabis use disorder in the past three months.
I am eligible for an MRI.
You may not be able to join if
I have a history of fetal alcohol spectrum disorder or intellectual disorders.
I have had any neurological problems, like epilepsy or brain injury.
I am currently experiencing active psychosis symptoms.
I have been hospitalized in the past 6 months for psychosis or suicidal thoughts.
I am a non-English speaker.
I am currently in treatment for cannabis use disorder.
Summarized in plain language from this trial's official eligibility criteria.
The full criteria are further down this page — only the research team can
confirm whether you qualify.
Think this trial could be right for you?
Answer a few quick questions to see if you may meet the eligibility requirements.
This study is testing whether brain activity related to learning can help predict how well teens respond to a treatment program designed to reduce cannabis use. Teens ages 14-17 will complete a brain scan and then take part in 10 weekly virtual sessions where they report cannabis use and complete drug tests at home. Participants can earn prizes for staying cannabis-free.
Trial Locations
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Eligibility Criteria
Inclusion Criteria:
* 14-17 year old youth
* Guardian 18 years or older
* Youth is MRI-eligible: No metal implants, prosthetics, orthodontic devices, transdermal medication patches, piercings and/or hair or eyelash extensions that cannot easily be removed, metallic ink tattoos on the neck or face, …
Inclusion Criteria:
* 14-17 year old youth
* Guardian 18 years or older
* Youth is MRI-eligible: No metal implants, prosthetics, orthodontic devices, transdermal medication patches, piercings and/or hair or eyelash extensions that cannot easily be removed, metallic ink tattoos on the neck or face, or claustrophobia, and are not pregnant
* Youth must endorse having used cannabis at least once per week over the past month OR youth must have been diagnosed with cannabis use disorder within the past three months
Exclusion Criteria:
* Youth has a history of Fetal Alcohol Spectrum Disorder, intellectual disorders, pervasive development disorder or autism spectrum disorder, psychotic disorders, history of neurological problems (epilepsy, traumatic brain injury, brain tumor, cerebrovascular disease) by parent/guardian report
* Youth or caretaker who is monolingual non-English speaker
* Youth who is currently experiencing active psychosis symptoms or suicidal/homicidal ideation or who has been hospitalized within the past 6 months for psychosis or suicidality/homicidality
* Youth who is currently undergoing contingency management treatment for cannabis use disorder
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