Teen Marijuana Check-Up

This study is ongoing, but not recruiting participants.
Sponsor:
Collaborator:
Virginia Polytechnic Institute and State University
Information provided by (Responsible Party):
Denise Walker, University of Washington
ClinicalTrials.gov Identifier:
NCT01109563
First received: April 21, 2010
Last updated: May 20, 2014
Last verified: May 2014
  Purpose

This study will test a behavioral intervention tailored for adolescents who smoke marijuana and have concerns about their use. The study's purpose is to determine whether this intervention (two-sessions of motivational enhancement intervention followed by 12 months of optional skills training) will be more effective in reducing the use of this drug if augmented by three periodic motivational enhancement treatment check-in sessions as compared to three periodic computer-based check-in sessions.

HYPOTHESES: (1) Participants in the motivational enhancement treatment check-ins (MCI) condition will reduce their use of marijuana more than participants in the computer based (Comp) condition and report fewer negative consequences. These differences are expected to be greater at later follow-ups (i.e, 9, 12, and 15 months) after repeated check-ins exert a cumulative effect. (2)Engagement in CBT sessions will be greater for those in the MCI condition and will partially mediate the effect on marijuana related outcome indices. (3) The MCI intervention will lead to increased self-efficacy, and decreased normative perceptions of marijuana use by other teens that will also partially mediate the effect of the intervention.


Condition Intervention Phase
Cannabis Use Disorder
Behavioral: Marijuana Check-Ins
Behavioral: Educational Feedback Control
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Single Blind (Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Reaching and Motivating Change in Teen Marijuana Smokers

Resource links provided by NLM:


Further study details as provided by University of Washington:

Primary Outcome Measures:
  • frequency (number of days) of marijuana use [ Time Frame: 90 days ] [ Designated as safety issue: No ]
    Global Appraisal of Individual Needs - I (self-report measure)

  • treatment utilization [ Time Frame: 90 days ] [ Designated as safety issue: No ]
    Global Appraisal of Individual Needs - I

  • marijuana abuse/dependence symptoms [ Time Frame: 90 days ] [ Designated as safety issue: No ]
    Global Appraisal of Individual Needs - I

  • engagement in cognitive behavioral skills training sessions [ Time Frame: 90 days ] [ Designated as safety issue: No ]
    Frequency of attendance at optional in-school counseling sessions


Secondary Outcome Measures:
  • self-efficacy [ Time Frame: 90 days ] [ Designated as safety issue: No ]
    Self-efficacy scale that assesses self-efficacy for avoiding marijuana use

  • normative perceptions of peer marijuana use [ Time Frame: 90 days ] [ Designated as safety issue: No ]
    Descriptive perceived norms concerning the frequency of marijuana use by other adolescents of the participant's age


Estimated Enrollment: 250
Study Start Date: March 2011
Estimated Study Completion Date: September 2014
Estimated Primary Completion Date: September 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Educational Feedback Control
The EFC provides an attentional control for personal contact and other non-specific factors in the MCI condition, while also providing potentially useful content to the marijuana using teen. The EFC will offer a state-of-the-art educational experience on the effects of marijuana on health and psychosocial functioning. The three sessions will include: (1) A PowerPoint presentation on marijuana, highlighting the health, behavioral and social consequences of marijuana. A segment will focus on learning how to selectively search for more information concerning marijuana utilizing the internet and library. Any participant in this condition who requests information on how to make changes will be provided the "Strategies that Work" booklet, informed of the nature of treatment approaches available in the community, and provided a list of local resources for adolescents.
Behavioral: Educational Feedback Control
The EFC provides an attentional control for personal contact and other non-specific factors in the MCI condition, while also providing potentially useful content to the marijuana using teen. The EFC will offer a state-of-the-art educational experience on the effects of marijuana on health and psychosocial functioning. The three sessions will include: (1) A PowerPoint presentation on marijuana, highlighting the health, behavioral and social consequences of marijuana. A segment will focus on learning how to selectively search for more information concerning marijuana utilizing the internet and library. Any participant in this condition who requests information on how to make changes will be provided the "Strategies that Work" booklet, informed of the nature of treatment approaches available in the community, and provided a list of local resources for adolescents.
Experimental: Marijuana Check-Ins
The MCI, an MET intervention, will include the provision of personalized feedback with a motivational interviewing style. The focus of these sessions will be individualized to participants based on recent marijuana use and related experiences. Feedback given to participants during the MCI session will review progress toward goals as self-reported in percent days abstinent, normative data regarding marijuana use, review of reported consequences of marijuana use, review of abuse and dependence criteria reported, comparison of consequences and abuse and dependence symptoms reported over time, review of the positive outcomes from reductions in use, and review of immediate and long-term life goals and how their marijuana goal will affect these. HEs will offer particular encouragement to take advantage of CBT sessions to participants who feel they currently need treatment.
Behavioral: Marijuana Check-Ins
The MCI, an MET intervention, will include the provision of personalized feedback with a motivational interviewing style. The focus of these sessions will be individualized to participants based on recent marijuana use and related experiences. Feedback given to participants during the MCI session will review progress toward goals as self-reported in percent days abstinent, normative data regarding marijuana use, review of reported consequences of marijuana use, review of abuse and dependence criteria reported, comparison of consequences and abuse and dependence symptoms reported over time, review of the positive outcomes from reductions in use, and review of immediate and long-term life goals and how their marijuana goal will affect these. HEs will offer particular encouragement to take advantage of CBT sessions to participants who feel they currently need treatment.

Detailed Description:

The goal of this trial is to evaluate the efficacy of an enhanced Teen Marijuana Check-Up protocol to reach and intervene with non-treatment seeking adolescents who use marijuana heavily. Two hundred fifty adolescents who use marijuana heavily will receive a 2-session individual motivational enhancement therapy. All participants will also be offered the opportunity, over a 12-month period, to repeatedly re-initiate marijuana counseling. Participants will be randomly assigned to receive one of two types of periodic follow-up contacts: Motivational interviewing-based Marijuana Check-Ins (MCI) or Computer Based Control (Comp) sessions.

All participants will be reassessed at the 6, 9, 12, and 15-month anniversaries of enrollment. Following their initial motivational enhancement therapy, the 125 experimental condition participants will additionally have a motivational enhancement treatment "check-in" session with their counselor at the 4, 7, and 10-month anniversaries of enrollment intended to reinforce the maintenance of treatment gains and motivate continued success, increase motivation to change for participants who did not meet their marijuana use goals, and/or prompt utilization of cognitive-behavioral treatment (CBT) sessions as needed. The 125 comparison participants will complete a computer based questionnaire at the same time intervals to serve as an attentional control.

  Eligibility

Ages Eligible for Study:   14 Years to 19 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  1. age (14-19 years old),
  2. grade level (9th through 11th) and
  3. marijuana use.

Exclusion Criteria:

Individuals will be excluded if:

  1. they are not fluent in English,
  2. they have a thought disorder that precludes full participation,
  3. they refuse to accept randomization to condition,
  4. they are currently involved in substance abuse treatment, or
  5. they are high school seniors.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01109563

Sponsors and Collaborators
Denise Walker
Virginia Polytechnic Institute and State University
Investigators
Principal Investigator: Denise D Walker, PhD University of Washington School of Social Work
  More Information

No publications provided

Responsible Party: Denise Walker, Principal Investigator, University of Washington
ClinicalTrials.gov Identifier: NCT01109563     History of Changes
Other Study ID Numbers: 37852-G, 2R01DA014296-09A1
Study First Received: April 21, 2010
Last Updated: May 20, 2014
Health Authority: United States: Institutional Review Board

Keywords provided by University of Washington:
cannabis use disorder
marijuana
motivational enhancement treatment
cognitive behavioral treatment
continuing care

ClinicalTrials.gov processed this record on October 02, 2014