Cognitive-Behavioural Therapies and Motivational Interviewing for Methamphetamine Use Disorders: A Systematic Review - Abstract
Objective: Methamphetamine use disorders are a matter of public health. The goal of this study was to conduct a systematic review of clinical trials concerning cognitive-behavioural therapies (CBTs) and motivational interviewing (MI) for methamphetamine use disorders.
Method: We have conducted a systematic review of the literature on MEDLINE in order to include all controlled clinical trials that were published up to March 31th, 2017.
Results: Of the 369 articles that were reviewed, six clinical trials (n=1578) fulfilled our inclusion criteria. Concerning CBTs, one clinical trial (n=978) found results in favour of the Matrix Model versus treatment-as-usual (but the results were not consistent over a six-month period), two clinical trials (n=231) found a significant increase of abstinence when the Matrix Model (p<0.05) was supplemented with contingency management (CM), and one clinical trial (n=104) found no significant difference between acceptance and commitment therapy (ACT) and classical CBT. Concerning motivational interviewing, one clinical trial (n=48) — consisting of two motivational interviewing sessions — found a significant decrease in the number of days of drug use compared to psychoeducation (p<0.04), and one trial (n=217) found there was no significant difference between nine sessions and a single session of MI supplemented with CBT group sessions.
Conclusions: Few clinical trials have been carried out regarding cognitive-behavioural therapies and motivational interviewing for methamphetamine use disorders. Cognitive-behavioural therapy trials have higher statistical power than motivational interviewing trials. New clinical trials should be carried out.