Development of a Methamphetamine Early Intervention

December 12, 2012 updated by: University of Washington
Methamphetamine abuse has a strong and consistent epidemiologic association with high-risk sexual behavior and both prevalent and incident HIV in men who have sex with men (MSM), and some authorities have advocated methamphetamine treatment as an HIV prevention strategy. However, methamphetamine interventions have not been evaluated in controlled trials, nor have they been implemented and assessed outside of substance abuse treatment programs. This application proposes preliminary investigations to adapt a methamphetamine treatment intervention previously associated with decreased sexual-risk taking among MSM for use as an early intervention among MSM in Seattle, Washington. Sixty methamphetamine-using MSM will be enrolled in a randomized controlled trial of contingency management (CM) versus no intervention. CM participants will have their urine tested for methamphetamine 3 times weekly for 12 weeks, and will receive vouchers of escalating value when their urines test negative; vouchers will be withheld when participants' urines test positive for methamphetamine or participants miss urine testing visits. All participants will undergo urine methamphetamine testing and audio-computer assisted self-interviews on sexual behavior and substance use at baseline and at 6 week intervals for 6 months. Participants will be tested for HIV, syphilis, rectal gonorrhea and chlamydial infection, and pharyngeal gonorrhea at baseline and at 3 and 6 month follow-up. The study will determine how often MSM will initiate and complete the early intervention, and will longitudinally measure unsafe sexual behaviors among intervention and control participants. Study results will determine the feasibility of instituting and studying CM as an early intervention; define whether the intervention is sufficiently promising to justify a larger, definitive randomized controlled trial; and will provide estimates for defining the number of participants such a trial would require.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

127

Phase

  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Washington
      • Seattle, Washington, United States, 98122
        • Lifelong AIDS Alliance

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • Anal sex with another man in the month prior to enrollment
  • Use of methamphetamine on at least 2 days in the month prior to enrollment

Exclusion Criteria:

  • Plans to move from the study catchment area within 6 months of enrollment
  • A mutually monogamous relationships with a man of the same HIV status lasting 2 or more years

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Contingency Management
Behavioral: Contingency management
A 12-week contingency management intervention
Other Names:
  • Voucher-based reinforcement
No Intervention: Referral to community resources

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Non-concordant unprotected anal intercourse
Time Frame: Baseline, 6, 12, 18, 24 weeks
Baseline, 6, 12, 18, 24 weeks

Secondary Outcome Measures

Outcome Measure
Time Frame
Number of non-concordant unprotected anal intercourse partners
Time Frame: Baseline, 6, 12, 18, 24 weeks
Baseline, 6, 12, 18, 24 weeks
Stimulant (methamphetamine and crack/cocaine) urinalyses
Time Frame: Baseline, 6, 12, 18, 24 weeks
Baseline, 6, 12, 18, 24 weeks
Self-reported methamphetamine use
Time Frame: Baseline, 6, 12, 18, 24 weeks
Baseline, 6, 12, 18, 24 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Washington

Collaborators

National Institute on Drug Abuse (NIDA)

Investigators

  • Principal Investigator: Matthew Golden, University of Washington

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

December 1, 2006

Primary Completion (Actual)

April 1, 2009

Study Completion (Actual)

April 1, 2009

Study Registration Dates

First Submitted

August 2, 2010

First Submitted That Met QC Criteria

August 2, 2010

First Posted (Estimate)

August 3, 2010

Study Record Updates

Last Update Posted (Estimate)

December 13, 2012

Last Update Submitted That Met QC Criteria

December 12, 2012

Last Verified

December 1, 2012

More Information

Terms related to this study

Other Study ID Numbers

  • R21DA019420-01A1 (U.S. NIH Grant/Contract)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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