Joint Effort 2.0: a Mobile Application With University Students (JOINTEFFORT)

Centre hospitalier de l'Université de Montréal (CHUM)

Status: Completed

Conditions: Cannabis Dependence; Cannabis; Cannabis Use; Cannabis Smoking; Cannabis Use, Unspecified

Treatments: Other: Joint Effort; Other: Brief normative feedback and standard information

Study type: Interventional

Funder types: Other

Identifiers

NCT05620433

2023-11154

Details and patient eligibility

About

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.

Full description

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.

Enrollment: 354 patients

Sex: All

Ages: 18 to 35 years old

Volunteers: Accepts Healthy Volunteers

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)

Exclusion criteria

• None

Trial design

Primary purpose: Prevention

Allocation: N/A

Interventional model: Parallel Assignment

Masking: Double Blind

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354 participants in 2 patient groups

Joint Effort mobile application

Experimental group

Description:

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.

Treatment:

Other: Joint Effort

Brief normative feedback and standard information

Active Comparator group

Description:

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).

Treatment:

Other: Brief normative feedback and standard information