Joint Effort App for Cannabis Use

(JOINTEFFORT Trial)

Overseen By José Côté, PhD

Age: 18 - 65

Sex: Any

Trial Phase: Academic

Sponsor: Centre hospitalier de l'Université de Montréal (CHUM)

No Placebo Group All trial participants will receive the active study treatment (no placebo)

Compensation: Varies

Number of Visits: 4

Duration: 8 weeks

354 Participants Needed

Trial Summary

What is the purpose of this trial?

The purpose of this study is to evaluate quantitatively and qualitatively a mobile application, Joint Effort, targeting safe cannabis use among consumers. This randomized controlled trial is currently conducted on the Joint Effort mobile application.

Research Team

José Côté, PhD

Principal Investigator

Université de Montréal

Jingui Cheng, PhD

Principal Investigator

Université de Montréal

Didier Jutras-Aswad, MD MSN

Principal Investigator

Centre de Recherche du Centre Hospitalier de l'Université de Montréal

Sylvie Cossette, PhD

Principal Investigator

Université de Montréal

Christine Genest, PhD

Principal Investigator

Université de Montréal

Shalini Lal, PhD

Principal Investigator

Université de Montréal

Judith Lapierre, PhD

Principal Investigator

Laval University

Gabrielle Pagé, PhD

Principal Investigator

Centre de Recherche du Centre Hospitalier de l'Université de Montréal

Eligibility Criteria

This trial is for non-medical cannabis users aged 18-35 who have used cannabis in the last month, can understand and write French, and own an iPhone. There are no specific exclusion criteria listed.

Inclusion Criteria

I can understand, read, and write in French.

Own a smartphone (iPhone)

Be a non-medical cannabis user and have used in the last month

Exclusion Criteria

Not applicable.

Timeline

Screening

Participants are screened for eligibility to participate in the trial

1-2 weeks

Online enrollment and consent

Baseline Assessment

Participants complete a baseline questionnaire to assess initial conditions

1 week

Online questionnaire

Treatment

Participants use the Joint Effort mobile application or receive brief normative feedback and standard information

8 weeks

Continuous app usage

Follow-up

Participants complete follow-up questionnaires to assess changes in behavior and engagement

8 weeks

Online questionnaires at 4 and 8 weeks

Treatment Details

Interventions

• Brief normative feedback and standard information
• Joint Effort

Trial Overview The study is testing 'Joint Effort', a mobile app designed to promote safe cannabis use among consumers. Participants will receive either brief normative feedback with standard information or just the app's features.

Participant Groups

Group I: Joint Effort mobile application Experimental Treatment 1 Intervention

The Joint Effort mobile application aims to support young adults in taking action on their cannabis use. Based on the Theory of Planned Behaviour, the content focuses on intention, attitude, and perceived behavioral control. Various intervention methods and strategies are used to address these determinants (e.g., personalized feedback, persuasive communication, self-observation, and activation of intention). The objectives include: to allow the individual to become aware (or more aware) of their cannabis use, to support the individual's decision-making process of taking action on their cannabis use, and to guide and support the establishment and sustainability of an action plan. An optional logbook-type feature (weekly journal of cannabis use) allows personalized monitoring and data collection throughout the course of the intervention.

Group II: Brief normative feedback and standard information Active Control 1 Intervention

The comparator is composed of a brief normative feedback regarding last month's frequency of cannabis use and basic reliable non-personalized information on lower-risk cannabis use (official public websites).

Who Is Running the Clinical Trial?

Centre hospitalier de l'Université de Montréal (CHUM)

Lead Sponsor

Trials

389

Recruited

143,000+