Methadone maintenance therapy versus no opioid replacement therapy for opioid dependence.


BACKGROUND:Methadone maintenance was the first widely used form of opioid replacement therapy developed to treat heroin dependence, and it remains the best-researched treatment for this problem. Despite the widespread use of methadone in maintenance treatment for opioid dependence in many countries, it is a controversial treatment whose effectiveness has been disputed. OBJECTIVES:To evaluate the effects of methadone maintenance treatment (MMT) compared with treatments that did not involve opioid replacement therapy (i.e., detoxification, offer of drug-free rehabilitation, placebo medication, wait-list controls) for opioid dependence. SEARCH STRATEGY:We searched all the following databases up to 2001: Cochrane Drugs and Alcohol Review Group Register, the Cochrane Controlled Trials Register, MEDLINE, EMBASE, Current Contents, Psychlit, CORK [www.], Alcohol and Drug Council of Australia (ADCA) [], Australian Drug Foundation (ADF-VIC) [], Centre for Education and Information on Drugs and Alcohol (CEIDA) [], Australian Bibliographic Network (ABN), and Library of Congress databases, available NIDA monographs and the College on Problems of Drug Dependence Inc. proceedings, the reference lists of all identified studies and published reviews; authors of identified RCTs were asked about other published or unpublished relevant RCTs. SELECTION CRITERIA:All randomised controlled clinical trials of methadone maintenance therapy compared with either placebo maintenance or other non-pharmacological therapy for the treatment of opioid dependence. DATA COLLECTION AND ANALYSIS:Reviewers evaluated the papers separately and independently, rating methodological quality of concealment of allocation, data were extracted independently for meta-analysis and double-entered. MAIN RESULTS:Six studies met the criteria for inclusion in this review, all were randomised clinical trials, two were double-blind. There were a total number of 954 participants. The method of concealment of allocation was inadequate in one study, not clearly described in four studies, but adequate in a sixth study. Based on the meta-analysis, methadone appeared statistically significantly more effective than non-pharmacological approaches in retaining patient in treatment (3 RCTs, RR=3.05; 95%CI: 1.75-5.35) and in the suppression of heroin use (3 RCTs, RR=0.32; 95%CI: 0.23-0.44), but not statistically in criminal activity (3 RCTs, RR=0.39; 95%CI: 0.12-1.25). REVIEWER'S CONCLUSIONS:Methadone is an effective maintenance therapy intervention for the treatment of heroin dependence as it retains patients in treatment and decreases heroin use better than treatments that do not utilise opioid replacement therapy. It does not show a statistically significant superior effect on criminal activity.


Mattick RP,Breen C,Kimber J,Davoli M





Has Abstract


2003-01-01 00:00:00








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