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Sponsors and Collaborators: |
University of Washington National Institute on Drug Abuse (NIDA) |
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Information provided by: | University of Washington |
ClinicalTrials.gov Identifier: | NCT00350285 |
This behavioral research is an efficacy trial evaluating an intervention called "The Teen Marijuana Check-Up" with non-treatment seeking adolescent marijuana users.
Condition | Intervention | Phase |
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Cannabis Abuse Cannabis Dependence |
Behavioral: Motivational enhancement therapy Behavioral: Marijuana education |
Phase II |
Study Type: | Interventional |
Study Design: | Treatment, Randomized, Open Label, Active Control, Parallel Assignment, Efficacy Study |
Official Title: | Reaching and Motivating Change in Teen Marijuana Smokers |
Enrollment: | 310 |
Study Start Date: | September 2004 |
Study Completion Date: | June 2008 |
Primary Completion Date: | June 2008 (Final data collection date for primary outcome measure) |
Arms | Assigned Interventions |
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1: Experimental
Motivational enhancement therapy
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Behavioral: Motivational enhancement therapy
Personal feedback with counselor using motivational interviewing strategies.
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2: Active Comparator
Marijuana education
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Behavioral: Marijuana education
Information about health and behavioral effects of marijuana use.
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3: No Intervention
Delayed treatment control condition
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Three hundred adolescents who smoke marijuana (ages 14-19), recruited in four Seattle-area high schools, will be enrolled in the trial. Participants will be recruited either through in-class presentations focusing on marijuana or via referrals from school staff. They will first be assessed regarding use of marijuana, alcohol, and other drugs, as well as pertinent attitudes and goals. Participants will then be randomly assigned to one of three conditions.
Following completion of their two intervention sessions, participants in the two active treatments will be offered an additional four sessions of cognitive-behavioral skills training in which the focus is strategies in quitting marijuana. All participants will be reassessed at 3 and 12 months following their initial assessment interviews.
Ages Eligible for Study: | 14 Years to 19 Years |
Genders Eligible for Study: | Both |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria: Individuals who contact the project will be screened according to the following inclusion criteria:
Exclusion Criteria: Individuals will be excluded if:
In addition to the inclusion and exclusion criteria, participants who appear to be in psychological or physical distress will be assessed further and referred to other services as appropriate. The need for other services will not necessarily preempt participation in the TMCU unless the individual is incapable or unwilling to complete the protocol. As was the case in our Stage 1b trial, all ineligible applicants will be offered a single feedback session, and the Strategies That Work booklet will be offered to those who indicate any interest in reducing or quitting marijuana use.
Responsible Party: | University of Washington ( Roger A. Roffman /Professor ) |
Study ID Numbers: | 01-8666-G-05, RO1 DA014296 |
Study First Received: | July 5, 2006 |
Last Updated: | October 21, 2008 |
ClinicalTrials.gov Identifier: | NCT00350285 |
Health Authority: | United States: Institutional Review Board |
cannabis marijuana |
Mental Disorders Substance-Related Disorders Disorders of Environmental Origin Marijuana Abuse |