In 1993,44 the group reported results from 96 patients who were admitted to an open trial of clozapine for treatment-resistant schizophrenia at the University

Hospital of Cleveland, and demonstrated that quality of life scores only improved in patients who continued clozapine treatment for at least 2 years, which means an improvement of 242%. Rosenheck et al16 conducted a comparative study of clozapine and haloperidol in refractory schizophrenic inpatients. They carried out a randomized, 1-year double-blind study at 15 Veterans Affairs medical centers. A total of 423 patients (clozapine = 205 and haloperidol = 218) Inhibitors,research,lifescience,medical were assessed using the QLS.35 After 1 year, 117 clozapine-treated patients and 61 haloperidol-treated patients continued their assigned treatment. In these patients, clozapine was significantly better than haloperidol in improving patients’ quality of life. In 1996, Essock et al17 failed to find superiority of clozapine over conventional Inhibitors,research,lifescience,medical antipsychotics on patients’ quality of life. Their study was the Inhibitors,research,lifescience,medical first randomized costeffectiveness trial of clozapine. It was a 2-year open-label randomized study comparing clozapine with usual care in schizophrenic

or schizoaffective treatment-resistant inpatients. A total of 227 patients (138 in the clozapine group and 89 in the usual care group) were assessed using the Quality of Life Interview (QoLI).14 Clozapine did not significantly affect patients’ quality of life. By the 8th month of treatment, both groups experienced equivalent improvements in the QoLI global satisfaction score. Olanzapine Hamilton et al23 evaluated the impact of treatment with olanzapine compared with haloperidol and placebo on quality of life in schizophrenic inpatients. Inhibitors,research,lifescience,medical They conducted a double-blind randomized study, with a 6-week acute phase and an Regorafenib research buy extension Inhibitors,research,lifescience,medical phase of 46 weeks for the responders. A total of 335 patients were randomized to one of the following groups: olanzapine 5±2.5 mg/d, olanzapine 10±2.5 mg/d, olanzapine 15±2.5 mg/d, haloperidol 15±5 mg/d, and placebo. Data at extension

week 24 was reported in their paper. Quality of life was assessed employing the QLS.35 At end point, no significant changes in the QLS total and subscale scores were observed for the placebo, olanzapine low-dose, or haloperidol groups. Moreover, significant improvements were oxyclozanide observed for olanzapine medium and high doses. The olanzapine medium-dose group demonstrated significant greater improvements in all QLS scores than the placebo group. The olanzapine high-dose group showed greater improvement in QLS total score compared with the placebo treatment group. The impact of olanzapine on quality of life has also been compared with the impact of haloperidol in a 6-week, double-blind randomized multicenter trial with a longterm extension (46 weeks).