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Completed

NCT Number: NCT05521321

Feasibility and Acceptability of the Cannabis Awareness and Prevention Toolkit

The Stanford Smart Talk Cannabis Awareness and Prevention Curriculum includes 5 lessons, each providing activities, online quiz games, and worksheets in addition to presentations, resources, and other materials aimed at addressing key factors associated with youth cannabis use, including changing adolescents' attitudes towards and misperceptions about cannabis; increasing their refusal skills to pulls of marketing and social media; reducing stress and depression which have been linked to cannabis initiation and use; improving coping skills; and decreasing intentions and actual use of all cannabis products.

The aim of this study is to investigate the extent to which the curriculum changes students' intentions to use and actual use of cannabis.

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Key information

Conditions

Cannabis Use Chemically-Induced Disorders Marijuana Abuse Mental Disorders Substance-Related Disorders

Age range

10 year–20 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Stanford University

Palo Alto, California, 94304, United States

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Middle school and high school students receiving health education at schools participating in the study

Exclusion criteria

-

Treatment and study plan

Stanford Smart Talk Cannabis Awareness and Prevention curriculum

Behavioral

Stanford Cannabis Awareness and Prevention curriculum delivered as a 5-session curriculum administered in a school classroom setting.

Primary outcomes

  1. Cannabis Use (Lifetime)

    Time frame: Baseline, Post-intervention (approx. 3 days post-baseline), and 6-month Follow-up

    Investigator-originated survey measures (questions) assess lifetime cannabis use. This outcome measure assesses cannabis use.

  2. Cannabis Use (Past 30 Days)

    Time frame: Baseline, Post-intervention (approx. 3 days post-baseline), and 6-month Follow-up

    Investigator-originated survey measures (questions) assess cannabis use in the past 30 days.

  3. Intention to Use Cannabis in the Future - Smoked Cannabis

    Time frame: Baseline, Post-intervention (approx. 3 days post-baseline), and 6-month Follow-up

    Investigator-originated survey measures (questions) assessing participant intention to use cannabis in the future. Assessed on a Likert-scale (1 - Definitely not, 4 - Definitely yes).

  4. Intention to Use Cannabis in the Future - Vaped Cannabis

    Time frame: Baseline, Post-intervention (approx. 3 days post-baseline), and 6-month Follow-up

    Investigator-originated survey measures (questions) assessing participant intention to use cannabis in the future. Assessed on a Likert-scale (1 - Definitely not, 4 - Definitely yes).

  5. Intention to Use Cannabis in the Future - Cannabis Edibles

    Time frame: Baseline, Post-intervention (approx. 3 days post-baseline), and 6-month Follow-up

    Investigator-originated survey measures (questions) assessing participant intention to use cannabis in the future. Assessed on a Likert-scale (1 - Definitely not, 4 - Definitely yes).

Secondary outcomes

  1. Cannabis Knowledge

    Time frame: Baseline and Post-intervention (approx. 3 days post-baseline)

    Participants were asked 13 questions related to their knowledge of cannabis, resulting in an overall scale of 0 to 13, higher scores indicated greater knowledge.

  2. Perceived Addictiveness and Harmfulness - Smoked Cannabis

    Time frame: Baseline, Post-intervention (approx. 3 days post-baseline), and 6-month Follow-up

    Investigator-originated survey measures (questions) assessing participants' perceptions of cannabis addiction and harm. Assessed on a Likert-scale (1 - Not at all addictive/harmful, 5 - Extremely addictive/harmful).

  3. Perceived Addictiveness and Harmfulness - Vaped Cannabis

    Time frame: Baseline, Post-intervention (approx. 3 days post-baseline), and 6-month Follow-up

    Investigator-originated survey measures (questions) assessing participants' perceptions of cannabis addiction and harm. Assessed on a Likert-scale (1 - Not at all addictive/harmful, 5 - Extremely addictive/harmful).

  4. Perceived Addictiveness and Harmfulness - Cannabis Edibles

    Time frame: Baseline, Post-intervention (approx. 3 days post-baseline), and 6-month Follow-up

    Investigator-originated survey measures (questions) assessing participants' perceptions of cannabis addiction and harm. Assessed on a Likert-scale (1 - Not at all addictive/harmful, 5 - Extremely addictive/harmful).

Sponsors and collaborators

Lead sponsor

Stanford University

Other

Collaborators

  • National Institute on Drug Abuse (NIDA)

Registry information

Important dates

Study start
2022
Primary completion
2025
Study completion
2025
First posted
Aug 30, 2022
Registry last updated
Jul 28, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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