Recruiting

Mobile App

Sponsor:

Centre hospitalier de l'Université de Montréal (CHUM)

Code:

NCT07524985

Conditions

Cannabis Use

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Accepted

Interventions

Joint Effort

Brief normative feedback and standard information

Study Details

Brief summary:

This study aims to evaluate a mobile app designed to promote the safe use of cannabis among adult users in Quebec.

Conditions

Cannabis Use

Study ID

NCT07524985

Start date

Apr 30, 2026

Status verified date

Jun, 2026

Completion date

Apr, 2027

Anticipated

Primary completion date

Apr, 2027

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Accepted

Inclusion Criteria:

  • Aged 18 years old or older
  • Be an active non-medical cannabis user (ie. self reported past month usage)
  • Understand, read and write French
  • Own a smartphone (iPhone)

Exclusion Criteria:

  • None

Study Design

Enrollment

110 participants

Anticipated

Allocation

Randomized

Intervention Model

Parallel Assignment

Primary purpose

Prevention

Interventions and Outcome Measures

Arms

experimental: Joint Effort

Mobile application

active comparator: Brief normative feedback and standard information

Webpage

Interventions

Joint Effort

The Joint Effort intervention is available as an iPhone mobile application in French language. It aims to support cannabis users to take action upon their cannabis use.

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.

Primary outcome measure

  • Protective Behavioral Strategies for Marijuana [ Time Frame: Baseline, 2-weeks, 4-weeks ]

Central Contacts and Locations

Central contacts

José Côté, PhD

514-890-8000jose.cote@umontreal.ca

Locations

Université de Montréal

Recruiting

Montreal, Quebec, Canada

Contacts

José Côté

514-890-8000jose.cote@umontreal.ca

More Information

Sponsor

Centre hospitalier de l'Université de Montréal (CHUM)

Last update posted

Jun 3, 2026

Last verified

Jun, 2026

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-10. This information was provided to ClinicalTrials.gov by Centre hospitalier de l'Université de Montréal (CHUM) on 2026-06-03.