Long Term Maintenance of Drug Abstinence

Status Completed

Clinical Trial Summary

The purpose of this study is to develop a model for long-term maintenance of behavior change by examining the effects of extending the duration of contingency management (CM) for drug abuse on long-term abstinence outcomes. The primary hypothesis is that the Extended (36 week) CM group will have better long-term outcomes as exhibited by greater rates of abstinence at each follow-up assessment as compared to the Standard (12 week) CM group.

Clinical Trial Description

This protocol examines the effects of extending the duration of contingency management (CM) for drug abuse and dependence on long-term abstinence outcomes. Following the tenets of basic behavioral research, we have outlined a model for long-term behavior maintenance that suggests that successful long-term behavior change does not focus on undoing old behaviors, but concentrates on developing new behaviors in a wide variety of new contexts, and provides enduring reinforcement for the new behaviors. The implication of this model is that in order to develop strategies for supporting long-term behavior change we need to determine the optimal duration of continuing treatment-arranged contingencies, better specify incompatible behaviors that emerge for patients who are successful in sustaining periods of continuous drug abstinence, and determine which incompatible behaviors are most likely to have naturally-occurring sustaining contingencies of reinforcement. This research will examine the model by randomly assigning cocaine-dependent or cocaine-abusing methadone maintenance patients to either a Standard (12 week) or Extended (36 week) period of contrived contingencies. We will be conducting a 2 year follow-up in order to investigate whether providing a longer duration of CM will result in a greater proportion of abstinent individuals during this time, how long the abstinence will last and to discover if longer durations of drug abstinence during the first year after treatment entry will predict better longer-term abstinence outcomes. We also compare outcomes on abstinence-related behaviors to see if provision of an extended voucher program leads to an increase in non-drug using natural reinforcers and activities. This study participates in the NIH-sponsored Health Maintenance Consortium designed to promote interchange of concepts, methods and measures related to the maintenance of long-term behavior change. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00842517
Study type	Interventional
Source	Public Health Management Corporation
Contact
Status	Completed
Phase	Phase 1
Start date	September 2004
Completion date	August 2008

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.