The effectiveness of non-clozapine antipsychotics combined with electroconvulsive therapy versus clozapine combined with electroconvulsive therapy for treatment-resistant schizophrenia

The study aimed to compare the effectiveness and safety of other atypical antipsychotics (non-clozapine) plus electroconvulsive therapy (ECT) (NC+ECT) versus clozapine plus ECT (C+ECT) for treating treatment-resistant schizophrenia (TRS). Data of 32 patients with TRS who was receiving ECT were analysed. We compared clinical characteristics, response to treatment [defined as an improvement of 40% in the Brief Psychotic Rating Scale (BPRS) psychotic symptom subscale from pretreatment scores], change of Mini-mental Status Exam (MMSE) scores, and other adverse effects between the NC+ECT group (N= 16) and C+ECT group (N =16). We found that the overall response rate was 65.6% (75.8% for the NC+ECT group and 56.3% for the C+ECT group, p=0.26). The overall BPRS score in both groups decreased significantly. The mean difference in total BPRS psychotic subscale score between pre-ECT and after last ECT was 10.4 + 5.8 (p