Joint Effort 2.0: a Mobile Application With University Students

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

354 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-02-08

Study Completion Date

2024-11-28

Brief Summary

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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.

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Detailed Description

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This online randomized controlled trial with parallel groups is conducted in Quebec (Canada). Interested participants are invited to visit the study's website at www.etudejointeeffort.ca

The study's Website contains text explaining the study. After accepting the conditions and consenting, participants will enroll in the study by providing an email address and a pseudonym. Each participant will be validated through an email address check. After their enrolment, participants will receive a hyperlink via email to invite them to complete a baseline questionnaire.

After completing the baseline questionnaire, participants will be randomly assigned by the computer system either to an experimental group (Joint Effort mobile application) or to a control group (brief normative feedback and standard information).

Four weeks and eight weeks after the baseline questionnaire, participants will complete the online questionnaires again.

Conditions

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Cannabis Use Cannabis Cannabis Dependence Cannabis Smoking Cannabis Use, Unspecified

Study Design

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Allocation Method

NA

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Investigators Outcome Assessors

Study Groups

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Joint Effort mobile application

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 Type EXPERIMENTAL

Joint Effort

Intervention Type OTHER

The Joint Effort intervention is available in the form of an iPhone mobile application (running on iOS 13 and higher) in French language. It aims to support young adults in school who have used cannabis in the past month into taking action on their cannabis use.

Brief normative feedback and standard information

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).

Group Type ACTIVE_COMPARATOR

Brief normative feedback and standard information

Intervention Type OTHER

The brief normative feedback is based on the frequency of cannabis use. Participants will also be offered basic reliable non-personalized information on lower-risk cannabis use in the form of official public websites.

Interventions

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Joint Effort

The Joint Effort intervention is available in the form of an iPhone mobile application (running on iOS 13 and higher) in French language. It aims to support young adults in school who have used cannabis in the past month into taking action on their cannabis use.

Intervention Type OTHER

Brief normative feedback and standard information

The brief normative feedback is based on the frequency of cannabis use. Participants will also be offered basic reliable non-personalized information on lower-risk cannabis use in the form of official public websites.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Aged between 18-35 years old
* Be a non-medical cannabis user and have used in the last month
* Understand, read and write French
* Own a smartphone (iPhone)