Cannabis Use Patterns Among Young Adults and Associations With Social and Health Outcomes.

Condition(s) studied

Investigational drug(s) / intervention(s)

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).

Study 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.

Eligibility

Primary outcome measure(s)

• Cannabis use patterns — Baseline
  Primary outcome measures of this study are specific assessments of cannabis use patterns, measured at baseline and daily using the mobile app. Primary outcome assessments related to cannabis use patterns will be tracked daily, taking advantage of a short but detailed series of questions taking approximately 1-5 minutes to answer, depending on the number of consumption events during the day. Participants will be advised to provide information even during non-consumption days, which in these cases will be limited to their general appreciation of the day, in addition to the fact that they did not consume that day. Participants will be able to retrospectively enter daily cannabis consumption data up to a maximum of seven days in the past, to minimize recall bias.
• Trajectories of consumption patterns over time_Route of administration — From baseline (Day 1) up to two year (Day 730)
  The investigators will use weekly reports on participants' habits surrounding cannabis use in the form of logbook entries, covering the route of administration for each product. This information will be collected for each consumption session during a use day.
• Trajectories of consumption patterns over time_product type — From baseline (Day 1) up to two year (Day 730)
  The investigators will use weekly reports on participants' habits surrounding cannabis use in the form of logbook entries, covering the product type for each product. This information will be collected for each consumption session during a use day.
• Trajectories of consumption patterns over time_THC constituent (%) — From baseline (Day 1) up to two year (Day 730)
  The investigators will use weekly reports on participants' habits surrounding cannabis use in the form of logbook entries, covering the THC constituent (%) for each product. This information will be collected for each consumption session during a use day.
• Trajectories of consumption patterns over time_CBD constituent (%) — From baseline (Day 1) up to two year (Day 730)
  The investigators will use weekly reports on participants' habits surrounding cannabis use in the form of logbook entries, covering the CBD constituent (%) for each product. This information will be collected for each consumption session during a use day.
• Trajectories of consumption patterns over time_amount per use — From baseline (Day 1) up to two year (Day 730)
  The investigators will use weekly reports on participants' habits surrounding cannabis use in the form of logbook entries, covering the amount per use for each product. This information will be collected for each consumption session during a use day.
• Trajectories of consumption patterns over time_supply source — From baseline (Day 1) up to two year (Day 730)
  The investigators will also capture information on supply source (choices are: cultivated by me or for me, family member or friend or acquaintance, SQDC, legal source from another province, health Canada licensed producer, illegal market) for each product used in the logbook.

Trial sites (1)

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