A randomized controlled trial of a brief motivational enhancement for non-treatment-seeking adolescent cannabis users

Gee, Elisabeth A. de; Verdurmen, Jacqueline; Bransen, Els; Jonge, Jannet M. de; Schippers, Gerard M.

doi:10.1016/j.jsat.2014.05.001

Cited by 36 publications

(33 citation statements)

References 45 publications

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“…The results reinforce similar research demonstrating the effectiveness of motivational interviewing with a subgroup of heavy users (de Gee et al, 2014). Although the original intent of the parent study was to alter the trajectories of moderate substance-using adolescents (including cannabis, alcohol, and other substances), results from the current study appear promising in reducing cannabis use among adolescents who are heavy users of cannabis.…”

Section: Discussionsupporting

confidence: 82%

Peer Network Counseling as Brief Treatment for Urban Adolescent Heavy Cannabis Users

Mason

Sabo

Zaharakis

2017

J. Stud. Alcohol Drugs

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ABSTRACT. Objective: A small body of evidence supports targeting adolescents who are heavy users of cannabis with brief interventions, yet more research is needed to confirm the effectiveness of these studies. We conducted a secondary analysis of our Peer Network Counseling (PNC) study (Mason et al., 2015), focusing on 46 adolescents of the sample of 119 who reported heavy cannabis use at baseline. Method: Urban adolescents (91% African American) presenting for primary health care were randomized to intervention or control conditions and followed for 6 months. We selected cases (n = 46) to analyze based on heavy cannabis use reported at baseline ( 10 times in past month). The ordinal response data (cannabis use) were modeled using a mixed-effects proportional odds model, including fixed effects for treatment, time, and their interaction, and a subject-level random effect. Results: In the subsample of adolescents with heavy cannabis use, those assigned to PNC had a 35.9% probability of being abstinent at 6 months, compared with a 13.2% probability in the control condition. Adolescents in the PNC condition had a 16.6% probability of using cannabis 10 or more times per month, compared with a 38.1% probability in the control condition. This differs from results of the full sample (N = 119), where no significant effects on cannabis use were found. Conclusions: PNC increased the probability of abstinence and reduced heavy cannabis use. These results provide initial support for PNC as a model for brief treatment with non-treatmentseeking adolescents who are heavy users of cannabis. (J. Stud. Alcohol Drugs, 78, 152-157, 2017)

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Section: Discussionsupporting

confidence: 82%

Peer Network Counseling as Brief Treatment for Urban Adolescent Heavy Cannabis Users

Mason

Sabo

Zaharakis

2017

J. Stud. Alcohol Drugs

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“…A larger replication study conducted in the Netherlands did not find a significant treatment effect of ACCU over time. 27 However, baseline level of use appeared to moderate the effect of treatment on marijuana use; heavy users (who smoked more than 14 joints per week) receiving the MET intervention showed greater reduction in quantity of use compared with heavy users in the control condition. Of note, the original ACCU participants were heavier users than the Dutch sample, which, combined with the moderation effect reported by others, suggests that brief MET interventions may be more effective with heavier users.…”

Section: Motivational Enhancement Therapymentioning

confidence: 97%

Treatment of Cannabis Use Disorder: Current Science and Future Outlook

2016

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Cannabis is the most commonly used illicit substance in the United States. Rates of cannabis use and cannabis use disorder have increased in the past decade, paralleling changes in the legal and political climate favoring legalization. Almost 20 million people aged 12 years or older report past-month cannabis use, and 8 million report daily or near-daily use. Concurrently, the perception that cannabis use poses a significant risk of negative consequences has decreased. Contrary to this perception, heavy cannabis use is associated with cognitive impairment, increased risk for psychotic disorders and other mental health problems, lower education attainment, and unemployment. Clinical trials of various treatments for cannabis use disorder have likewise increased, focusing primarily on psychotherapy treatments, specifically, motivational enhancement therapy, cognitive behavioral therapy, and contingency management. Their findings suggest that a combination of these three modalities produces the best abstinence outcomes, although abstinence rates remain modest and decline after treatment. More recently, pharmacotherapy trials have been conducted as adjunctive interventions to psychosocial treatment. N-acetylcysteine and gabapentin are two of the most promising medications, although no pharmacologic treatment has emerged as clearly efficacious. In this review, we provide a detailed summary of clinical trials that evaluated psychotherapy and pharmacotherapy for treating cannabis use disorder and discuss emerging areas of clinical research and cannabis-specific barriers to treatment.

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“…20 C use is associated with a variety of potential health risks and harms, including: memory and psychomotor impairment, accidental injury, mental health disorders, dependence, bronchial or pulmonary illnesses, and other illicit drug use. 21 This study is focused on SCs use as the other illcit drug use, and supports the association of SCs use with the C use.…”

Section: Discussionmentioning

confidence: 99%

Differences in sociodemographic characteristics, clinical features and serum liver function tests of male cannabis and synthetic cannabinoid users

Kotan¹,

Yücens²,

Kotan³

et al. 2017

Anadolu Psikiyatri Derg

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A randomized controlled trial of a brief motivational enhancement for non-treatment-seeking adolescent cannabis users

Cited by 36 publications

References 45 publications

Peer Network Counseling as Brief Treatment for Urban Adolescent Heavy Cannabis Users

Peer Network Counseling as Brief Treatment for Urban Adolescent Heavy Cannabis Users

Treatment of Cannabis Use Disorder: Current Science and Future Outlook

Differences in sociodemographic characteristics, clinical features and serum liver function tests of male cannabis and synthetic cannabinoid users

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