Madison to Manipal: A narrative review of modified assertive community treatment programs

Assertive community treatment (ACT) is a multidisciplinary, team-based approach providing comprehensive individualized care for the patients with various mental illness, has been adapted variably across the world in terms of patient-staff ratio, selection of patients, the pattern of service delivery and frequency of contact. We aim to review the extant literature on the modifications of ACT programs for severe mental disorders and their effectiveness.

Studies on modified ACT approaches for mental illnesses were searched in multiple databases. We adopted a rapid appraisal approach. The searches were restricted to articles published in English. We appraised the fidelity assessment of the ACT studies wherever available. In addition, we assessed the study quality using a grading tool based on ten practice components of ACT.

We found 23 reports (10 RCTs and 13 non-controlled studies) on modified ACT. The extant literature on modified ACT programs is heterogeneous. The modifications in ACT included changes in patient-to-staff ratio, team composition, service hours, and interventions carried out. Most controlled studies were conducted in high-income settings and had inconsistent outcome, possibly due to the comprehensive nature of the 'usual care.' In contrast, modified ACT services from low and middle-income countries reduced hospitalization rates and improved treatment adherence.

Modifications in ACT programs were done to cater to specific subpopulation and the changes in program structure to suit the resources and setting. The outcome of modified ACT appears heterogenous, though the findings from low and middle-income countries are promising.