NCT06098573

Brief Summary

In Canada, youth ages 16-24 have the highest rates of cannabis use, impaired driving, and express the least concern for driving under the influence of cannabis (DUIC). As such, developing effective and practical DUIC prevention efforts is crucial. This study aims to evaluate the effects of 'High Alert' in reducing 3-month risky cannabis use and DUIC among young Ontarian drivers. 'High Alert' is an interactive web-based smartphone application developed by the research team with the feedback of experts and youth. 'High Alert' modules focus on recognizing what constitutes risky cannabis use, the effects of cannabis on driving, the risks of DUIC, and strategies to avoid DUIC. A pilot randomized controlled trial will compare the effects of 'High Alert' with an active control (DUIC Information) and passive control (no contact). Overall, effectively preventing DUIC among youth is critically needed and time-sensitive.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
103

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Nov 2023

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 18, 2023

Completed
6 days until next milestone

First Posted

Study publicly available on registry

October 24, 2023

Completed
8 days until next milestone

Study Start

First participant enrolled

November 1, 2023

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 10, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 10, 2024

Completed
Last Updated

October 15, 2024

Status Verified

October 1, 2024

Enrollment Period

10 months

First QC Date

October 18, 2023

Last Update Submit

October 9, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Past driving under the influence of cannabis

    "in the past three months, how many times have you driven within two hours of inhaling cannabis or within four hours of ingesting cannabis". Continuous variable (min=0, no maximum). Higher numbers indicate worse outcome (i.e., more impaired driving).

    3-months

Study Arms (3)

Program 1: High Alert

EXPERIMENTAL

High Alert

Behavioral: High Alert

Program 2: Information condition

ACTIVE COMPARATOR

Active Control- Information condition

Behavioral: Information condition

No contact

PLACEBO COMPARATOR

Passive control- No contact

Behavioral: No contact

Interventions

High AlertBEHAVIORAL

Participants assigned to the 'High Alert' condition will complete four interactive modules using their smartphones. These modules are hosted online via the Computerized Intervention Authoring Software, version 3.0 (https://www.cias.app \[CIAS\]). CIAS is a non- commercial, easily modifiable, web-based intervention platform used widely in the digital substance use literature. No identifiable information is requested or stored in CIAS. This program is only intended to deliver the content interactively. None of the questions asked in CIAS will be treated as research data. We will only report on the proportion of questions answered by participants (as a measure of adherence). Individual responses to questions will not be analyzed nor reported on. The purpose of the questions is for participants to engage with the content interactively

Program 1: High Alert

Participants in the DUIC Information condition will receive a Qualtrics link with six infographics created to educate about DUIC. Four infographics were retrieved from government websites, one was provided by a non-profit (i.e., Arrive Alive Drive Sober), and the research team created the final one. After reviewing each infographic, participants will respond to a few questions about the infographic. Questions asked to the DUIC Info Control will obtain data related to: seeing the infographic before, perceptions on the infographic content, aspects they liked/disliked, and likelihood to share with their peers. All items will be treated as research data.

Program 2: Information condition
No contactBEHAVIORAL

Participants in the passive control will receive no contact until the three and six-month follow-ups.

No contact

Eligibility Criteria

Age18 Years - 24 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • ages 18-24
  • valid Ontario driver's license
  • access to a motor vehicle
  • report DUIC at least three times in the past three months
  • proficient in English
  • have a smartphone they can complete the intervention with.

You may not qualify if:

  • Individuals under 18 and those over 24
  • resides outside Ontario
  • non-drivers

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Western University

London, Ontario, N6G 1G9, Canada

Location

MeSH Terms

Conditions

Marijuana AbuseUnderage Drinking

Interventions

Medication Errors

Condition Hierarchy (Ancestors)

Substance-Related DisordersChemically-Induced DisordersMental DisordersAdolescent BehaviorBehaviorAlcohol DrinkingDrinking Behavior

Intervention Hierarchy (Ancestors)

Drug TherapyTherapeuticsMedical ErrorsHealth ServicesHealth Care Facilities Workforce and Services

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 18, 2023

First Posted

October 24, 2023

Study Start

November 1, 2023

Primary Completion

September 10, 2024

Study Completion

September 10, 2024

Last Updated

October 15, 2024

Record last verified: 2024-10

Data Sharing

IPD Sharing
Will not share

Locations