Joint Effort 2.0: a Mobile Application With University Students

NCT05620433 | Completed

• 1 other identifier: 2023-11154
• Study Type: interventional
• Target: 354
• Locations: 1 country
• Sites: 1

Brief Summary

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.

Conditions

Cannabis Use; Cannabis; Cannabis Dependence; Cannabis Smoking; Cannabis Use, Unspecified

Outcome Measures

Primary Outcomes (1)

• Change in Protective Behavioral Strategies for Marijuana (PBSM-17) used

  The French version of the questionnaire translated by Côté et al. (2021) will be used. The 17 items proposed in the scale, each representing a behavioral protection strategy, are measured in terms of frequency of use on a six-point Likert-type scale (never, rarely, occasionally, sometimes, often and always). As indicated by its developers, the total score of the PBSM-17 is obtained by calculating the total score of each item and then converting this raw score into a standardized form (T-score) ranging from 15 to 73.

  8 weeks

Secondary Outcomes (7)

• Change in intention to take action on cannabis use

  8 weeks

• Cannabis use frequency

  8 weeks

• Severity of Dependence

  8 weeks

• Subjective engagement with the developed mobile application (acceptability)

  4 weeks

• Number of screens viewed in the mobile application

  8 weeks

Study Arms (2)

Joint Effort mobile application

EXPERIMENTAL

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.

Other: Joint Effort

Brief normative feedback and standard information

ACTIVE COMPARATOR

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).

Other: Brief normative feedback and standard information

Interventions

Joint Effort 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.

Joint Effort mobile application

Brief normative feedback and standard information 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.

Brief normative feedback and standard information

Eligibility Criteria

• Age: 18 Years - 35 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• 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)

You may not qualify if:

• None

Sponsors & Collaborators

• Centre hospitalier de l'Université de Montréal (CHUM): lead

Study Sites (1)

Université de Montréal

Montreal, Quebec, Canada

Location

Related Links

• RESEARCH CHAIR IN INNOVATIVE NURSING PRACTICES

MeSH Terms

Conditions

Marijuana Abuse; Marijuana Smoking

Condition Hierarchy (Ancestors)

Substance-Related Disorders; Chemically-Induced Disorders; Mental Disorders; Marijuana Use; Behavior; Smoking, Non-Tobacco Products; Smoking

Study Officials

• José Côté, PhD

  Université de Montréal

  PRINCIPAL INVESTIGATOR

• Didier Jutras-Aswad, MD MSN

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

  PRINCIPAL INVESTIGATOR

• Sylvie Cossette, PhD

  Université de Montréal

  STUDY CHAIR

• Christine Genest, PhD

  Université de Montréal

  STUDY CHAIR

• Shalini Lal, PhD

  Université de Montréal

  STUDY CHAIR

• Judith Lapierre, PhD

  Laval University

  STUDY CHAIR

• Gabrielle Pagé, PhD

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

  STUDY CHAIR

• Jingui Cheng, PhD

  Université de Montréal

  STUDY CHAIR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: DOUBLE
• Who Masked: INVESTIGATOR, OUTCOMES ASSESSOR
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: November 8, 2022
• First Posted: November 17, 2022
• Study Start: February 8, 2023
• Primary Completion: November 28, 2024
• Study Completion: November 28, 2024
• Last Updated: March 12, 2025

Record last verified: 2025-03

Data Sharing

• IPD Sharing: Will not share

Locations

CA (1)