Comparative study of treatment continuation using second-generation antipsychotics in patients with schizophrenia or schizoaffective disorder
Takaharu Azekawa, Shizuko Ohashi, Akira ItamiShioiri Mental Clinic, Yokosuka-shi, Kanagawa-ken, JapanBackground: Effectiveness of a drug is a key concept dependent on efficacy, safety, and tolerability. Time to discontinuation of treatment is also representative of effectiveness. We investigated dif...
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| Formato: | article |
| Lenguaje: | EN |
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Dove Medical Press
2011
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| Acceso en línea: | https://doaj.org/article/32095dcd9ded4fbb999301bcb15c1c8a |
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| Sumario: | Takaharu Azekawa, Shizuko Ohashi, Akira ItamiShioiri Mental Clinic, Yokosuka-shi, Kanagawa-ken, JapanBackground: Effectiveness of a drug is a key concept dependent on efficacy, safety, and tolerability. Time to discontinuation of treatment is also representative of effectiveness. We investigated differences in treatment discontinuation among newly started second-generation antipsychotics in the clinical setting.Methods: Using a retrospective cohort study design, we screened all outpatients (n = 7936) who visited the Shioiri Mental Clinic between July 1, 2008 and June 30, 2010. We identified a cohort of patients (n = 703) diagnosed with schizophrenia or schizoaffective disorder and calculated the time to discontinuation of each second-generation antipsychotic.Results: Of the 703 patients, 149 were newly treated with aripiprazole, 67 with blonanserin, 95 with olanzapine, 36 with quetiapine, 74 with perospirone, and 120 with risperidone. The time to discontinuation for all causes was significantly longer for aripiprazole than for blonanserin, olanzapine, and risperidone. In addition, aripiprazole tended to be continued for longer than quetiapine and perospirone, but these differences were not significant.Conclusion: Aripiprazole may be considered the best available option for long-term treatment of patients with schizophrenia or schizoaffective disorder.Keywords: retrospective study, second-generation antipsychotics, effectiveness, treatment continuation, schizophrenia, aripiprazole |
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