A Cannabis Harm Reduction e-Intervention for Young Cannabis Users With Early Psychosis (CHAMPS)
Psychotic Disorder, Marijuana Use, Young Adult
About this trial
This is an interventional prevention trial for Psychotic Disorder focused on measuring Psychosis, Cannabis, Youth
Eligibility Criteria
Participants must meet all following inclusion criteria:
- diagnosed with any psychotic disorder, which can include schizophrenia, schizoaffective disorder, bipolar disorder with psychotic features, delusional disorder, psychotic disorder not otherwise specified, brief psychotic disorder and substance-induced psychotic disorder;
- has been followed at an early psychosis clinic for a minimum of 3 months;
- currently using cannabis (at least one time in the past 4 weeks);
- is open to changing cannabis-related practices;
- able to provide full informed consent;
- available for the whole study duration and able to comply with study procedures;
- able to comprehend French or English.
Participants are excluded if any of these exclusion criteria is met:
- pregnancy, nursing or any medical condition that in the opinion of the psychiatrist precludes safe participation in the study or the ability to provide fully informed consent;
- any disabling, unstable or acute mental condition that in the opinion of the psychiatrist precludes safe participation in the study or the ability to provide fully informed consent;
- any legal/judicial status/issue, pending legal action, or other reasons in the opinion of the study team that might prevent completion of the study;
- presence of a substance use disorder that, in the opinion of the psychiatrist, precludes safe participation in the study (e.g., very unstable or severe substance use disorder);
- currently seeking psychological or pharmacological treatment for cannabis use disorder to cease or decrease his/her use;
- currently participating in another specific cannabis-focused intervention.
Sites / Locations
- Foothills Medical Centre Early Psychosis Intervention Program, Unit 24, 1403-29 Street NW
- Nova Scotia Early Psychosis Program, 3rd Floor, Abbie Lane Bldg 5909 Veterans' Memorial Lane
- Clinic Connec-T - Institut universitaire en santé mentale de Montréal, 7401 rue Hochelaga
- Clinique JAP, Centre hospitalier de l'Université de Montréal, 1051, rue Sanguinet
- Clinic Notre-Dame des Victoires - Centre de Recherche CERVO, 2601 chemin de la Canardière
Arms of the Study
Arm 1
Arm 2
Experimental
No Intervention
CHAMPS and EIS
EIS alone
The Cannabis Harm-reducing App for Managing Practices Safely (CHAMPS) is a brief harm reduction e-intervention based on the principles of motivational interviewing and harm reduction approaches. This e-intervention will be completed by the participant using a smart phone. There will be a total of six individual sessions each lasting 15-20 min. There will be one booster session offered at 4 weeks post-intervention to review goal setting, evaluate motivation around changing cannabis use practices. This e-intervention will be administered adjunctively to psychosis early intervention services (EIS).
Early intervention services (EIS) for psychosis will be offered as per standard of care at participating clinical sites. Theses services vary but typically include pharmacotherapy and individual and/or group psychotherapy. Any visits and services offered in the EIS arm will be considered 'usual care' and administered either through in-person clinic visits, phone calls, or video calls. Relevant service information will be collected for study purposes.