Discontinuation of antipsychotic therapy has been a significant clinical issue among patients with schizophrenia, since the patients who discontinued antipsychotic treatment showed worse clinical and functional outcom...Discontinuation of antipsychotic therapy has been a significant clinical issue among patients with schizophrenia, since the patients who discontinued antipsychotic treatment showed worse clinical and functional outcomes, and higher risks of relapse of schizophrenia symptoms and hospitalization. We conducted a post-hoc analysis of a post-marketing research with a 12-month follow-up period to identify the predictors for discontinuation of antipsychotic monotherapy in Japan. This is a prospective, naturalistic multicenter observational study, designed to evaluate the discontinuation rates of olanzapine monotherapy and non-olanzapine antipsychotic monotherapy in Japanese adult patients with acute schizophrenia. Patients were treatment-naive, or had switched from other antipsychotics or from poly-pharmacotherapy to oral antipsychotic monotherapy. We analyzed the correlation of discontinuation of antipsychotic monotherapy with baseline characteristics of patients. A total of 1089 patients (578 patients treated with olanzapine and 511 with non-olanzapine antipsychotics) were eligible for analysis. By the end of the 12-month study period, 614 patients (56.4%) discontinued antipsychotic therapy. Multivariate logistic regression analyses indicated significantly lower discontinuation rates in all patients treated with antipsychotics: older age (Odds ratio [OR], 0.871;95% confidence interval [CI], 0.797 to 0.953;p = 0.003), outpatient status (OR, 0.508;95% CI, 0.383 to 0.675;p < 0.001), prior use of antipsychotics (OR, 0.693;95% CI, 0.516 to 0.930;p = 0.015), and olanzapine group showed lower discontinuation rate than that of non-olanzapine group (OR, 1.416;95% CI, 1.086 to 1.846;p = 0.010). The present study indicated that the outpatient status, older age, and prior use of antipsychotics have better adherence to antipsychotic treatment. In addition to these factors, use of anti-parkinson agents showed lower discontinuation rates in the olanzapine monotherapy group.展开更多
Objective: Baseline characteristics of acute schizophrenia patients were analyzed to identify differences in the baseline characteristics of patients treated with olanzapine monotherapy compared with those treated wit...Objective: Baseline characteristics of acute schizophrenia patients were analyzed to identify differences in the baseline characteristics of patients treated with olanzapine monotherapy compared with those treated with other antipsychotic monotherapies. Methods: This prospective, naturalistic observational study was designed to evaluate discontinuation rates of olanzapine and non-olanzapine antipsychotic monotherapy in Japanese adult patients with acute schizophrenia. Results: A total of 1089 patients were assessed: 578 patients were treated with olanzapine, 487 with non-olanzapine atypical antipsychotics, and 24 with typical antipsychotics. The mean Clinical Global Impression-Severity (CGI-S) Schizophrenia, Brief Psychiatric Rating Scale (BPRS) total, and BPRS positive scores were higher in patients treated with olanzapine compared with most of the non-olanzapine treated patients. The majority of patients with a CGI-S Schizophrenia score of 7 (29/41 patients) as well as patients with a BPRS total score of 90 or higher (14/18 patients) were treated with olanzapine. On the other hand, physicians tended to prescribe antipsychotics other than olanzapine for patients with heavier body weight or diabetes mellitus. Conclusion: The present study demonstrated that olanzapine was more likely to be prescribed to patients with more severe schizophrenia symptoms. However, further studies are warranted to reach a definite conclusion.展开更多
文摘Discontinuation of antipsychotic therapy has been a significant clinical issue among patients with schizophrenia, since the patients who discontinued antipsychotic treatment showed worse clinical and functional outcomes, and higher risks of relapse of schizophrenia symptoms and hospitalization. We conducted a post-hoc analysis of a post-marketing research with a 12-month follow-up period to identify the predictors for discontinuation of antipsychotic monotherapy in Japan. This is a prospective, naturalistic multicenter observational study, designed to evaluate the discontinuation rates of olanzapine monotherapy and non-olanzapine antipsychotic monotherapy in Japanese adult patients with acute schizophrenia. Patients were treatment-naive, or had switched from other antipsychotics or from poly-pharmacotherapy to oral antipsychotic monotherapy. We analyzed the correlation of discontinuation of antipsychotic monotherapy with baseline characteristics of patients. A total of 1089 patients (578 patients treated with olanzapine and 511 with non-olanzapine antipsychotics) were eligible for analysis. By the end of the 12-month study period, 614 patients (56.4%) discontinued antipsychotic therapy. Multivariate logistic regression analyses indicated significantly lower discontinuation rates in all patients treated with antipsychotics: older age (Odds ratio [OR], 0.871;95% confidence interval [CI], 0.797 to 0.953;p = 0.003), outpatient status (OR, 0.508;95% CI, 0.383 to 0.675;p < 0.001), prior use of antipsychotics (OR, 0.693;95% CI, 0.516 to 0.930;p = 0.015), and olanzapine group showed lower discontinuation rate than that of non-olanzapine group (OR, 1.416;95% CI, 1.086 to 1.846;p = 0.010). The present study indicated that the outpatient status, older age, and prior use of antipsychotics have better adherence to antipsychotic treatment. In addition to these factors, use of anti-parkinson agents showed lower discontinuation rates in the olanzapine monotherapy group.
文摘Objective: Baseline characteristics of acute schizophrenia patients were analyzed to identify differences in the baseline characteristics of patients treated with olanzapine monotherapy compared with those treated with other antipsychotic monotherapies. Methods: This prospective, naturalistic observational study was designed to evaluate discontinuation rates of olanzapine and non-olanzapine antipsychotic monotherapy in Japanese adult patients with acute schizophrenia. Results: A total of 1089 patients were assessed: 578 patients were treated with olanzapine, 487 with non-olanzapine atypical antipsychotics, and 24 with typical antipsychotics. The mean Clinical Global Impression-Severity (CGI-S) Schizophrenia, Brief Psychiatric Rating Scale (BPRS) total, and BPRS positive scores were higher in patients treated with olanzapine compared with most of the non-olanzapine treated patients. The majority of patients with a CGI-S Schizophrenia score of 7 (29/41 patients) as well as patients with a BPRS total score of 90 or higher (14/18 patients) were treated with olanzapine. On the other hand, physicians tended to prescribe antipsychotics other than olanzapine for patients with heavier body weight or diabetes mellitus. Conclusion: The present study demonstrated that olanzapine was more likely to be prescribed to patients with more severe schizophrenia symptoms. However, further studies are warranted to reach a definite conclusion.
