TY - JOUR PY - 2000// TI - Clozapine for treatment-refractory schizophrenia, schizoaffective disorder, and psychotic bipolar disorder: a 24-month naturalistic study JO - Journal of clinical psychiatry A1 - Ciapparelli, A. A1 - Dell'Osso, L. A1 - Pini, S. A1 - Chiavacci, M. C. A1 - Fenzi, M. A1 - Cassano, G. B. SP - 329 EP - 334 VL - 61 IS - 5 N2 - BACKGROUND: The aim of this study was to evaluate the 24-month response to clozapine in patients with schizophrenia, schizoaffective disorder, or psychotic bipolar disorder.

METHOD: Ninety-one psychotic patients with a principal DSM-III-R diagnosis of schizophrenia (N = 31), schizoaffective disorder (N = 26), or bipolar disorder with psychotic features (N = 34) were treated naturalistically with clozapine at flexible dosages over a 24-month period. Improvement was assessed by the 18-item Brief Psychiatric Rating Scale and the Clinical Global Impressions-Severity of Illness scale.

RESULTS: All patients showed significant improvement 24 months from intake (p <.001). Such an improvement was significantly greater among patients with schizoaffective disorder or bipolar disorder than in patients with schizophrenia (p <.05). The presence of suicidal ideation at intake predicted greater improvement at endpoint.

CONCLUSION: Clozapine appears to be effective and relatively well tolerated in acute and long-term treatment of patients with psychotic bipolar disorder or schizoaffective disorder who have not responded to conventional pharmacotherapies.

Language: en

LA - en SN - 0160-6689 UR - http://dx.doi.org/10.4088/jcp.v61n0502 ID - ref1 ER -