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Active, Not Recruiting

NCT Number: NCT07011615

Feasibility/Acceptability of a Brief Motivational Intervention for Frequent/High-Intensity Cannabis Use

The study aims to develop a novel brief motivational mobile health (mHealth) intervention for frequent and/or high-intensity cannabis use for non-collegiate young adults. A total of 120 young adults (ages 18-29, not enrolled at or attending a 4-year college or university) will be randomized to receive a mHealth intervention with text messages for five weeks or to an online resource/program with psychoeducation information about cannabis. The mHealth intervention will focus on prompting the young adult to reflect on their journey with cannabis and to reflect on their personal goals and how cannabis is reflected in these goals. Additional mini-modules are included related to topics such as motivations for use, perceived norms and tracking cannabis use. Participants will return to the program each week to reflect on the prior week and reflect on goals for the upcoming week. All participants will complete a program satisfaction survey and complete follow-up assessments at 3- and 6-months post-program.

Active, Not Recruiting

This study is active but is not currently recruiting participants.

Key information

Conditions

Cannabis Use

Age range

18 year–29 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of Washington

Seattle, Washington, 98195, United States

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • 18-29 years old
  • reside in Washington or Oregon State
  • have valid email address
  • report using cannabis on 15 or more days in the past month, and/or using high THC concentration products in the past month (>60% THC)
  • have a mobile phone and agree to receive text messages and has an internet browser
  • not attending or enrolled at a 4-year college or university or graduate/professional school.

Exclusion criteria

  • females who are pregnant or trying to become pregnant
  • those who are in substance abuse treatment at screening
  • those attending or enrolled at a 4-year college or university or graduate/professional school.

Treatment and study plan

Brief Motivational Mobile Health (mHealth) Intervention

Behavioral

Participants randomized to the mHealth intervention condition will receive a five-week online program that incorporates weekly text messages. The program will begin with prompting the young adult to reflect on their journey with cannabis and to reflect on their personal goals and how cannabis is reflected in these goals and how their social network may support their goals. Additional mini-modules are included related to topics such as motivations for use, perceived norms and tracking cannabis use. Text messages will be sent weekly to return to the program to prompt reflection and support any goals the participant indicates.

Psychoeducational Attention Control (AC)

Other

Participants randomized to the control group will receive a program to learn more about psychoeducational information about cannabis. They also receive psychoeducational material via text messages.

Primary outcomes

  1. Cannabis use - typical hours high in a week

    Time frame: Baseline, 3-month follow-up, 6-month follow-up

    The count of the self-reported typical number of hours high per week during the past month

  2. Negative cannabis-related consequences

    Time frame: Baseline, 3-month follow-up, 6-month follow-up

    Total sum score on the Marijuana Consequences Checklist based on number of self-reported cannabis-related consequences experienced in the past month. Higher scores indicate reporting greater number of negative cannabis-related consequences.

Secondary outcomes

  1. Cannabis use - Number of sessions

    Time frame: Baseline, 3-month follow-up, 6-month follow-up

    Self-reported number of times/sessions used cannabis on the typical day during the past month

Sponsors and collaborators

Lead sponsor

University of Washington

Other

Collaborators

  • National Institute on Drug Abuse (NIDA)

Registry information

Official study title

Feasibility/Acceptability of a Brief Motivational Intervention Integrating Online Personalized Feedback & Tailored Text Messages for Frequent/High-Intensity Cannabis Use in Post-Legalization Landscape

Important dates

Study start
2025
Primary completion
2026
Study completion
2026
First posted
Jun 9, 2025
Registry last updated
Jun 3, 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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