Recruiting

Cannabis Consumption

Sponsor:

Centre hospitalier de l'Université de Montréal (CHUM)

Code:

NCT07063589

Conditions

Cannabis Use

Eligibility Criteria

Sex: All

Age: 18 - 24

Healthy Volunteers: Accepted

Interventions

Mobile application

Study Details

Brief summary:

The purpose of this study is to identify and characterize patterns of non-therapeutic cannabis consumption and their variation in time in regular/daily users aged 18-24 years using a multi-factor approach (frequency of use, product types, cannabinoid dosages) over a two-year period.

Conditions

Cannabis Use

Study ID

NCT07063589

Start date

Sep 16, 2025

Status verified date

Dec, 2025

Completion date

Aug, 2027

Anticipated

Primary completion date

Aug, 2027

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18 - 24

Healthy Volunteers: Accepted

Inclusion Criteria:

  • 18 to 24 years of age;
  • Cannabis use frequency of at least 1 day/week in the past three months;
  • Ability to speak and read French or English;
  • willingness to comply with all study procedures;
  • access to a mobile phone.

Exclusion Criteria:

  • Planned extended absence during study period (e.g. pending legal action, surgery, incarceration, inpatient residential program) which, in the opinion of the research staff, might prevent completion of the study;
  • Current or anticipated treatment for cannabis use disorder, confirmed via self-report;
  • Medical document authorizing the use of cannabis for medical purposes;
  • Participation in clinical studies or undergoing other investigational procedures involving cannabis or cannabinoids administration.

Study Design

Enrollment

350 participants

Anticipated

Interventions and Outcome Measures

Interventions

Mobile application

Cannabis use patterns and their resulting subjective experiences, along with social and health-related correlates will be collected in real time using a mobile application specifically designed for this study by a local custom software development company (Osedea, Montreal).

Primary outcome measure

  • Cannabis use patterns [ Time Frame: Baseline ]
  • Trajectories of consumption patterns over time_Route of administration [ Time Frame: From baseline (Day 1) up to two year (Day 730) ]
  • Trajectories of consumption patterns over time_product type [ Time Frame: From baseline (Day 1) up to two year (Day 730) ]
  • Trajectories of consumption patterns over time_THC constituent (%) [ Time Frame: From baseline (Day 1) up to two year (Day 730) ]
  • Trajectories of consumption patterns over time_CBD constituent (%) [ Time Frame: From baseline (Day 1) up to two year (Day 730) ]
  • Trajectories of consumption patterns over time_amount per use [ Time Frame: From baseline (Day 1) up to two year (Day 730) ]
  • Trajectories of consumption patterns over time_supply source [ Time Frame: From baseline (Day 1) up to two year (Day 730) ]

Central Contacts and Locations

Central contacts

Pamela Lachance-Touchette, Ph.D.

514-890-8000pamela.lachance-touchette.chum@ssss.gouv.qc.ca

François-Olivier Hébert, Ph.D.

francois-olivier.hebert.chum@ssss.gouv.qc.ca

Locations

Centre de recherche du Centre Hospitalier Universitaire de Montréal

Recruiting

Montreal, Quebec, Canada, H2X0A9

Contacts

Pamela Lachance-Touchette, Ph.D

514 995 5338pamela.lachance-touchette.chum@ssss.gouv.qc.ca

Isabelle Boisvert, Ba.

514 890 8000isabelle.boisvert.ib.chum@ssss.gouv.qc.ca

Principal Investigator:

Didier Jutras-Aswad, MD

More Information

Sponsor

Centre hospitalier de l'Université de Montréal (CHUM)

Last update posted

Dec 24, 2025

Last verified

Dec, 2025

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 2025-12-24.