Testing the Efficacy of an Online Treatment Program for Heavy Cannabis Use
Marijuana Use, Marijuana Dependence
About this trial
This is an interventional treatment trial for Marijuana Use focused on measuring Cannabis, CANreduce, Marijuana, Cognitive Behavioural Therapy, Motivational Enhancement Therapy, Online treatment, Randomized Controlled Trial
Eligibility Criteria
Inclusion Criteria:
- Ages 18+
- Living in Manitoba or Ontario, Canada
- Reporting moderate difficulties with cannabis as indicated by a score of 8 or more on the Cannabis Use Disorders Identification Test - Revised (CUDIT-R; Adamson et al., 2010)
- Fluency in English
- Having weekly Internet access with a device that allows for video connection
- Self-report at least a 6 out of 10 on a Likert-type scale for motivation to reduce cannabis use (i.e., how important it is to reduce cannabis use)
Exclusion Criteria:
- Self-reported engagement in other psychological or pharmacological treatments for cannabis use
- Elevated suicidality, as defined by scoring greater than minimal risk on a screener
- Current serious psychiatric disorders or history of psychosis, schizophrenia, bipolar disorder
- Are a woman who is currently pregnant or breastfeeding
Sites / Locations
- University of ManitobaRecruiting
- York UniversityRecruiting
Arms of the Study
Arm 1
Arm 2
Arm 3
Experimental
Experimental
No Intervention
CBT with MET treatment group
CBT without MET treatment group
Psychoeducation (Control)
Participants in this arm will be provided with an MET-therapist guided introduction, in addition to the online CBT treatment.
Participants in this arm will be provided with a brief non-MET research assistant-led welcome to the program, in addition to the online CBT treatment.
The control group will be provided with psychoeducational resources about cannabis and wellbeing.