A Brief Marijuana Intervention for Adolescent Women - 1

Study Overview
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Brief Summary
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The purpose of this study is to examine the efficacy of a brief motivational intervention on marijuana use and sex-risk behavior in young women.

Detailed Description
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This study holds the promise of developing a brief, efficacious intervention to reduce marijuana use and related sexual risk-taking behavior among the large populaton of late adolescent women who are regular marijuana users. In the abscence of intervention, these women are at heightened risk of contracting HIV and other sexually transmitted infections. Therefore it is crucial to develop an intervention that will reduce their marijuana and subsequent sexual risk taking behavior. The intervention employed in this study represents a novel adaptation of interventions that are well-supported with similar populations. If the current intervention is found to be efficacious, it can be readily integrated into a variety of treatment settings, particularly other primary care settings. In addition, this study will contribute valuable information about the relationship between marijuana use and sexual risk taking behavior and about the mechanisms of change in marijuana use in late adolescent women. Comparison(s): Participants will be assigned, in this 6 month longitudinal study, to an assessment-only group or an assessment plus intervention group. Those in the intervention group will receive 2 motivational intervention sessions during the first 3 months of their study participation.

Official Title
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A Brief Marijuana Intervention for Adolescent Women

Conditions
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Marijuana Abuse, Sexual Risk Behaviors

Intervention / Treatment
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* Behavioral: Behavior Therapy
* Other: Treatment as Usual


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: current marijuana use; currently sexually active; able to complete the study procedures in English Exclusion Criteria: pregnant; alcohol dependence; drug dependence

Ages Eligible for Study
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Minimum Age: 15 Years
Maximum Age: 24 Years

Sexes Eligible for Study
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Female

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Placebo Comparator: Treatment as Usual<br>Participants are administered assessments at baseline, 1, 3 and 6 months | Other: Treatment as Usual<br> <br> |
| Experimental: Intervention<br>Participants complete assessments at baseline, 1, 3 and 6 months, and receive a 2-session behavioral intervention at the baseline and 1-month study appointments. | Behavioral: Behavior Therapy<br> <br> |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Marijuna use |  | marijuana use at 6 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Sex-risk behavior |  | sex-risk behavior at 6 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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marijuana, sexual risk