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OpenTrials
Completed

NCT Number: NCT04187989

Social Media Intervention for Cannabis Use in Emerging Adults

The purpose of the study is to develop and test social media interventions to help young people increase well-being and reduce risky behaviors. The study will help researchers learn about ways to deliver wellness information in a way that is appealing and helpful to young people who use Facebook.

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Key information

Conditions

Cannabis Use

Age range

18 year–25 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of Michigan

Ann Arbor, Michigan, 48109, United States

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • self-report using cannabis at least 3 time per week or more often in the past month
  • active Facebook profile
  • view and click on a social media ad

Exclusion criteria

  • fail identity verification based on 1) Internet Protocol (IP) addresses, 2) survey time completion, 3) repeat attempts, 4) survey responses, and 5) photo identification via a timestamped selfie sent to the research staff.

Treatment and study plan

Social Media Intervention

Behavioral

Information will be posted by e-coaches. You can interact with the e-coaches as well as other study members in your group.

Primary outcomes

  1. Frequency of Cannabis Use as Reported on the Timeline Follow-Back (TLFB)

    Time frame: 3-months post baseline

    30-day TLFB self-report will be used to assess total number of days of cannabis use.

  2. Frequency of Cannabis Use as Reported on the Timeline Follow-Back (TLFB)

    Time frame: 6-months post baseline

    30-day TLFB self-report will be used to assess total number of days of cannabis use.

  3. Quantity of Cannabis Used as Reported on the Timeline Follow-Back (TLFB)

    Time frame: 3-months post baseline

    30-day Timeline Follow-Back (TLFB) self-report will be used to assess quantity (grams) of cannabis consumed.

  4. Quantity of Cannabis Used as Reported on the Timeline Follow-Back (TLFB)

    Time frame: 6-months post baseline

    30-day Timeline Follow-Back (TLFB) self-report will be used to assess quantity (grams) of cannabis consumed.

  5. Consequences of Cannabis Use as Measured by the Marijuana Adolescent Consequences Questionnaire Using Dichotomous Response Scale as Previously Described Throughout This Trial Registration.

    Time frame: 3-months post-baseline

    Marijuana Adolescent Consequences Questionnaire will be used to assess past 3 month consequences of cannabis use. Consequences are measured by report of number of times incidents from the list of 26 items (e.g., quality of work suffered, had less energy, etc.) resulted from cannabis use. Responses will be dichotomized (0 = never, 1= greater than never) and summed for a total score reflecting total number of consequences.

    Response scale:

    Never 1-2 times 3-5 times 6-10 times More than 10 times

    Minimum score =0, maximum = 26. Higher score = more consequences.

  6. Consequences of Cannabis Use as Measured by the Marijuana Adolescent Consequences Questionnaire

    Time frame: 6-months post-baseline

    Marijuana Adolescent Consequences Questionnaire will be used to assess past 3 month consequences of cannabis use. Consequences are measured by report of number of times incidents from the list of 26 items (e.g., quality of work suffered, had less energy, etc.) resulted from cannabis use. Responses will be dichotomized (0 = never, 1= greater than never) and summed for a total score reflecting total number of consequences.

    Response scale:

    Never 1-2 times 3-5 times 6-10 times More than 10 times

    Minimum score =0, maximum = 26. Higher score = more consequences.

Secondary outcomes

  1. Perceived Risk of Cannabis Use as Measured by 2 Modified Items From the Monitoring the Future Survey

    Time frame: 3-months post-baseline

    Two items rating current opinion on a scale from "no risk" to "great risk" of their perceived risk harm from occasional cannabis use and regular use.

    Items are--

    How much do you think people risk harming themselves (physically or in other ways), if they:

    • Use marijuana or marijuana products occasionally
    • Use marijuana or marijuana products regularly

    Response options are:

    • No risk
    • Slight risk
    • Moderate risk
    • Great risk

    Answers from both items are added together. The total range of two items summed can be 2-8. Higher totals indicate higher perceived risk.

  2. Perceived Risk of Cannabis Use as Measured by Modified Items From the Monitoring the Future Survey

    Time frame: 6-months post-baseline

    Two items rating current opinion on a scale from "no risk" to "great risk" of their perceived risk harm from occasional cannabis use and regular use.

    Items are--

    How much do you think people risk harming themselves (physically or in other ways), if they:

    • Use marijuana or marijuana products occasionally
    • Use marijuana or marijuana products regularly

    Response options are:

    • No risk
    • Slight risk
    • Moderate risk
    • Great risk

    Answers from both items are added together. The total range of two items summed can be 2-8. Higher totals indicate higher perceived risk.

  3. Peer Approval/Disapproval of Cannabis Use as Measured by Item Modified From Monitoring the Future Survey

    Time frame: 3 months post-baseline

    One item rating of current perception of whether their close friends would disapprove of their cannabis use (regardless of how much they use), rated as:

    • Not disapprove
    • Disapprove
    • Strongly disapprove

  4. Peer Approval/Disapproval of Cannabis Use as Measured by Item Modified From Monitoring the Future Survey

    Time frame: 6 months post-baseline

    One item rating of current perception of whether their close friends would disapprove of their cannabis use (regardless of how much they use), rated as: 1 Not disapprove 2 Disapprove 3 Strongly disapprove

  5. Cannabis Impaired Driving as Measured by 5 Items From the Modified Young Adult Driving Questionnaire

    Time frame: 3 months post-baseline

    Five items from the modified Young Adult Driving Questionnaire will be used to assess past 3 month driving under the influence of cannabis. Response values will be summed for a total score.

    In the PAST 3 MONTHS...how many times did you drive within one hour after using marijuana or marijuana products containing THC?

    • how many times did you drive while a little high on marijuana or marijuana products containing THC?
    • how many times did you drive while very high on marijuana or marijuana products containing THC?
    • how many times did you drive when you knew your use of marijuana/marijuana products containing THC may already have affected your coordination?
    • how many times did you ride in a car or other vehicle driven by someone who had been using marijuana or marijuana products containing THC?

    Response options:

    0= Never

    • Once
    • Twice
    • 3 times
    • 4 times
    • 5 times
    • 6-9 times
    • 10 or more times

  6. Cannabis Impaired Driving as Measured by 5 Items From the Modified Young Adult Driving Questionnaire

    Time frame: 6 months post-baseline

    Five items from the modified Young Adult Driving Questionnaire will be used to assess past 3 month driving under the influence of cannabis. Response values will be summed for a total score.

    In the PAST 3 MONTHS...how many times did you drive within one hour after using marijuana or marijuana products containing THC?

    • how many times did you drive while a little high on marijuana or marijuana products containing THC?
    • how many times did you drive while very high on marijuana or marijuana products containing THC?
    • how many times did you drive when you knew your use of marijuana/marijuana products containing THC may already have affected your coordination?
    • how many times did you ride in a car or other vehicle driven by someone who had been using marijuana or marijuana products containing THC?

    Response options:

    0= Never

    • Once
    • Twice
    • 3 times
    • 4 times
    • 5 times
    • 6-9 times
    • 10 or more times

  7. Other Drug Use as Measured by Items Modified From Monitoring the Future Survey

    Time frame: 3 months post-baseline

    Items from the Monitoring the Future Survey will be used to assess past 30 day use of 6 other substances - substances used and number of times of use. Response values will be summed for a total score using mid-point of the range scoring.

    Substances assessed include: hallucinogens, opioids, stimulants, sedatives, lsd, ecstasy

    Response scale:

    0 0 Occasions

    • 1-2 Occasions
    • 3-5 Occasions
    • 6-9 Occasions
    • 10-19 Occasions
    • 20-39 Occasions
    • 40 or More Occasions

  8. Other Drug Use as Measured by Items Modified From Monitoring the Future Survey

    Time frame: 6 months post-baseline

    Items from the Monitoring the Future Survey will be used to assess past 30 day use of 6 other substances - substances used and number of times of use. Response values will be summed for a total score using mid-point of the range scoring.

    Substances assessed include: hallucinogens, opioids, stimulants, sedatives, lsd, ecstasy

    Response scale:

    0 0 Occasions

    • 1-2 Occasions
    • 3-5 Occasions
    • 6-9 Occasions
    • 10-19 Occasions
    • 20-39 Occasions
    • 40 or More Occasions

  9. Frequency of Alcohol Consumption as Reported on the Timeline Follow-Back (TLFB)

    Time frame: 3 months post-baseline

    30-day TLFB self-report will be used to assess total number of days of alcohol consumption.

  10. Frequency of Alcohol Consumption as Reported on the Timeline Follow-Back (TLFB)

    Time frame: 6 months post-baseline

    30-day TLFB self-report will be used to assess total number of days of alcohol consumption.

  11. Quantity of Alcohol Consumption as Reported on the Timeline Follow-Back (TLFB)

    Time frame: 3 months post-baseline

    30-day TLFB self-report will be used to assess the quantity of alcohol consumed.

  12. Quantity of Alcohol Consumption as Reported on the Timeline Follow-Back (TLFB)

    Time frame: 6 months post-baseline

    30-day TLFB self-report will be used to assess the quantity of alcohol consumed.

Sponsors and collaborators

Lead sponsor

University of Michigan

Other

Collaborators

  • National Institute on Drug Abuse (NIDA)

Registry information

Important dates

Study start
2020
Primary completion
2020
Study completion
2020
First posted
Dec 5, 2019
Registry last updated
Feb 11, 2022

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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