The Cannabis Youth Treatment (CYT) Study: main findings from two randomized trials.

This article presents the main outcome findings from two inter-related randomized trials conducted at four sites to evaluate the effectiveness and cost-effectiveness of five short-term outpatient interventions for adolescents with cannabis use disorders. Trial 1 compared five sessions of Motivational Enhancement Therapy plus Cognitive Behavioral Therapy (MET/CBT) with a 12-session regimen of MET and CBT (MET/CBT12) and another that included family education and therapy components (Family Support Network [FSN]). Trial II compared the five-session MET/CBT with the Adolescent Community Reinforcement Approach (ACRA) and Multidimensional Family Therapy (MDFT).

Outpatient marijuana treatment for adolescents. Economic evaluation of a multisite field experiment.

An economic evaluation of five outpatient adolescent treatment approaches (12 total site-by-conditions) was conducted. The economic cost of each of the 12 site-specific treatment conditions was determined by the Drug Abuse Treatment Cost Analysis Program (DATCAP). Economic benefits of treatment were estimated by first monetizing a series of treatment outcomes and then analyzing the magnitude of these monetized outcomes from baseline through the 12-month follow-up.

Cannabis use: consistency and validity of self-report, on-site urine testing and laboratory testing.

Aims: To evaluate the agreement between adolescent self-reported cannabis use, "on-site" qualitative urine screening, and quantitative laboratory testing.

Design: A cross-sectional study of intake and follow-up data from 248 adolescents entering substance abuse treatment for cannabis use disorders (abuse or dependence). This is part of the multi-site cooperative agreement Cannabis Youth Treatment study.

Five outpatient treatment models for adolescent marijuana use: a description of the Cannabis Youth Treatment Interventions.

The five manual-guided treatment models tested in the Cannabis Youth Treatment study funded by the Center for Substance Abuse Treatment are described. The five models include (a) a 6-week intervention consisting of two sessions of individual motivational enhancement therapy plus three sessions of group cognitive behavioral therapy (MET/CBT5); (b) a 12-week intervention consisting of two sessions of motivational enhancement therapy plus 10 sessions of group cognitive behavioral therapy treatment (MET/CBT12); (c) a 12-week intervention consisting of MET/CBT12 plus the family support network (FSN), a multi-component intervention that includes parent education, family therapy and case management; (d) a 12-week intervention based on the adolescent community reinforcement approach (ACRA), an individual behavioral treatment approach designed to help adolescents and their parents reshape their environment and learn new skills; and (e) multi-dimensional family therapy (MDFT), a multi-faceted, developmentally and contextually oriented family-based model targeting individual, family and social systems. For each model, we describe the treatment background and/or its empirical support, its theoretical underpinnings, its goals and proposed treatment mechanism and the structure and content of each treatment.

Characteristics and problems of 600 adolescent cannabis abusers in outpatient treatment.

Aims: Risk factors among adolescent substance abusers have been shown to correlate with substance use severity. Characteristics related to severity, such as demographic and family factors, peer influences, psychiatric co-morbidity and HIV risk behaviors, are examined for a sample of adolescent cannabis users entering treatment.

Design: These data are from a clinical trial study utilizing blocked random assignment of clients to one of five treatment conditions.

The Cannabis Youth Treatment (CYT) experiment: rationale, study design and analysis plans.

Aims: This paper provides a description of the rationale, study design, treatments and assessment procedures used in the Cannabis Youth Treatment (CYT) experiment.

Design: CYT was designed to (a) test the relative effectiveness, cost and benefit-cost of five promising treatment interventions under field conditions and (b) provide evidence based manual-guided models of these interventions to the treatment field.

Setting: The study involved two community-based treatment programs and two major medical centers.