NCT00350285

Brief Summary

This behavioral research is an efficacy trial evaluating an intervention called "The Teen Marijuana Check-Up" with non-treatment seeking adolescent marijuana users.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
310

participants targeted

Target at P75+ for phase_2

Timeline
Completed

Started Sep 2004

Typical duration for phase_2

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 2004

Completed
1.8 years until next milestone

First Submitted

Initial submission to the registry

July 5, 2006

Completed
5 days until next milestone

First Posted

Study publicly available on registry

July 10, 2006

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2008

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2008

Completed
Last Updated

October 23, 2008

Status Verified

October 1, 2008

Enrollment Period

3.8 years

First QC Date

July 5, 2006

Last Update Submit

October 21, 2008

Conditions

Cannabis AbuseCannabis Dependence

Keywords

cannabismarijuana

Outcome Measures

Primary Outcomes (1)

  • Self-report of marijuana use

    3 months and 12 months

Secondary Outcomes (1)

  • Accepting abstinence-focused counseling

    3 months and 12 months

Study Arms (3)

1

EXPERIMENTAL

Motivational enhancement therapy

Behavioral: Motivational enhancement therapy

2

ACTIVE COMPARATOR

Marijuana education

Behavioral: Marijuana education

3

NO INTERVENTION

Delayed treatment control condition

Interventions

Motivational enhancement therapyBEHAVIORAL

Personal feedback with counselor using motivational interviewing strategies.

1
Marijuana educationBEHAVIORAL

Information about health and behavioral effects of marijuana use.

2

Eligibility Criteria

Age14 Years - 19 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • age (14-19 years old),
  • grade level (freshmen through seniors) and
  • marijuana use (smoked 9 or more days in past 30).

You may not qualify if:

  • they are not fluent in English,
  • they have a thought disorder that precludes full participation,
  • they refuse to accept randomization to condition.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Marijuana Abuse

Interventions

Motivational Interviewing

Condition Hierarchy (Ancestors)

Substance-Related DisordersChemically-Induced DisordersMental Disorders

Intervention Hierarchy (Ancestors)

Directive CounselingCounselingMental Health ServicesBehavioral Disciplines and ActivitiesHealth ServicesHealth Care Facilities Workforce and Services

Study Officials

  • Roger A Roffman, DSW

    University of Washington School of Social Work

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER

Study Record Dates

First Submitted

July 5, 2006

First Posted

July 10, 2006

Study Start

September 1, 2004

Primary Completion

June 1, 2008

Study Completion

June 1, 2008

Last Updated

October 23, 2008

Record last verified: 2008-10