Clinical trial NCT05620433: Joint Effort 2.0: a Mobile Application With University Students
Official title: Joint Effort, a Mobile Prevention and Harm Reduction Application
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Cannabis Use
Cannabis
Cannabis Dependence
Cannabis Smoking
Cannabis Use, Unspecified
Lead sponsor: Centre hospitalier de l'Université de Montréal (CHUM)
Sponsor class: OTHER
First posted: 2022-11-17
Enrollment: 354
Sex: ALL
Minimum age (years): 18
Maximum age (years): 35
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: NA
Intervention model: PARALLEL
Primary purpose: PREVENTION

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.

Detailed 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.

Eligibility criteria: 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

Primary outcomes:
measure: Change in Protective Behavioral Strategies for Marijuana (PBSM-17) used
timeFrame: 8 weeks
Secondary outcomes:
measure: Change in intention to take action on cannabis use
timeFrame: 8 weeks
measure: Cannabis use frequency
timeFrame: 8 weeks
measure: Severity of Dependence
timeFrame: 8 weeks
measure: Subjective engagement with the developed mobile application (acceptability)
timeFrame: 4 weeks
measure: Number of screens viewed in the mobile application
timeFrame: 8 weeks
measure: Total time of use of the mobile application
timeFrame: 8 weeks
measure: Number of days the mobile application was used
timeFrame: 8 weeks
Other outcomes:
Locations:
city: Montréal
country: Canada
facility: Université de Montréal
state: Quebec
Study officials:
affiliation: Université de Montréal
name: José Côté, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: Centre de Recherche du Centre Hospitalier de l'Université de Montréal
name: Didier Jutras-Aswad, MD MSN
role: PRINCIPAL_INVESTIGATOR
affiliation: Université de Montréal
name: Sylvie Cossette, PhD
role: STUDY_CHAIR
affiliation: Université de Montréal
name: Christine Genest, PhD
role: STUDY_CHAIR
affiliation: Université de Montréal
name: Shalini Lal, PhD
role: STUDY_CHAIR
affiliation: Laval University
name: Judith Lapierre, PhD
role: STUDY_CHAIR
affiliation: Centre de Recherche du Centre Hospitalier de l'Université de Montréal
name: Gabrielle Pagé, PhD
role: STUDY_CHAIR
affiliation: Université de Montréal
name: Jingui Cheng, PhD
role: STUDY_CHAIR
References: