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Long-term Behavior Change - 1

NCT00158197 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 119

Last updated 2015-08-25

Study results available
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Summary

The purpose of this study is to determine if different reinforcement procedures (i.e., schedules) produce different patterns of long-term abstinence from methamphetamine. We anticipate that the three contingency management conditions will promote longer periods of abstinence in the year following treatment relative to the standard control group. Furthermore, we predict that the intermittent reinforcement procedures will produce longer periods of continued abstinence (i.e., long-term behavior change) in the year following treatment than the continuous reinforcement procedure. Finally, we predict that the intermittent unpredictable schedule will produce longer lasting behavior change than the intermittent predictable schedule. Methamphetamine use will be measured using urine toxicology and self-report of methamphetamine use.

Conditions

  • Amphetamine-related Disorders

Interventions

BEHAVIORAL

contingency management voucher

participants receive vouchers for the provision of methamphetamine-negative urines. Vouchers can be redeemed for goods and services compatible with non-drug using behaviors.

Sponsors & Collaborators

  • National Institute on Drug Abuse (NIDA)

    collaborator NIH

  • Friends Research Institute, Inc.

    lead OTHER

Principal Investigators

  • John Roll, Ph.D. · University of California, Los Angeles

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2004-12-31
Primary Completion
2008-06-30
Completion
2008-06-30

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00158197 on ClinicalTrials.gov