Psychotherapy for psychiatric disorders: A review of 4 studies

3. Fonagy P, Butler S, Cottrell D, et al. Multisystemic therapy versus management as usual in the treatment of adolescent antisocial behaviour (START): a pragmatic, randomised controlled, superiority trial. Lancet Psychiatry. 2018;5(2):119-133.

Multisystemic therapy (MST) is an intensive, family-based, home-based intervention for young people with serious antisocial behavior. It has been found effective for childhood conduct disorders in the United States. However, previous studies that supported its efficacy were conducted by the therapy’s developers and used noncomprehensive comparators, such as individual therapy. Fonagy et al³ assessed the effectiveness and cost-effectiveness of MST vs management as usual for treating adolescent antisocial behavior. This is the first study that was performed by independent investigators and used a comprehensive control.³

Study design

• This 18-month, multisite, pragmatic, randomized controlled superiority trial was conducted in England.³
• Participants were age 11 to 17, with moderate to severe antisocial behavior. They had at least 3 severity criteria indicating difficulties across several settings and at least one of the 5 inclusion criteria for antisocial behavior. Six hundred eighty-four families were randomly assigned to MST or management as usual, and 491 families completed the study.³
• For the MST intervention, therapists worked with the adolescent’s caregiver 3 times a week for 3 to 5 months to improve parenting skills, enhance family relationships, increase support from social networks, develop skills and resources, address communication problems, increase school attendance and achievement, and reduce the adolescent’s association with delinquent peers.³
• For the management as usual intervention, management was based on local services for young people and was designed to be in line with current community practice.³

Outcomes

• The primary outcome was the proportion of participants in out-of-home placements at 18 months. The secondary outcomes were time to first criminal offense and the total number of offenses.³
• In terms of the risk of out-of-home placement, MST had no effect: 13% of participants in the MST group had out-of-home placement at 18 months, compared with 11% in the management-as-usual group.³
• Multisystemic therapy also did not significantly delay the time to first offense (hazard ratio, 1.06; 95% confidence interval, 0.84 to 1.33). Also, at 18-month follow-up, participants in the MST group had committed more offenses than those in the management-as-usual group, although the difference was not statistically significant.³
• Parents in the MST group reported increased parental support and involvement and reduced problems at 6 months, but the adolescents’ reports of parenting behavior indicated no significant effect for MST vs management as usual at any time point.³

Conclusion

• Multisystemic therapy was not superior to management as usual in reducing out-of-home placements. Although the parents believed that MST brought about a rapid and effective change, this was not reflected in objective indicators of antisocial behavior. These results are contrary to previous studies in the United States. The substantial improvements observed in both groups reflected the effectiveness of routinely offered interventions for this group of young people, at least when observed in clinical trials.³

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