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Publications (2)5.44 Total impact

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    ABSTRACT: To determine the effect of intramuscular (IM) olanzapine in severely agitated patients. This was an open-label multicenter 1-week observational study of IM olanzapine treatment in severely agitated inpatients and psychiatric emergency services with bipolar mania (n = 22) or schizophrenia (n = 52). Mean change from baseline to 2 h post-first injection (LOCF) in agitation was assessed by PANSS-Excited Component (PANSS-EC) (score range: 5-35 points) mean change from baseline to 15, 30, 45, 60, 90, and 120 min post-first injection, and visit-wise mean changes from mixed-model repeated measures analysis of variance. Kaplan-Meier survival curve analyses estimated time to categorical response (rating of <or=3 points each PANSS-EC item). Two hours post-injection of olanzapine (mean dose = 9.9 mg), patients exhibited mild calmness and agitation was significantly reduced by 19.2 +/- 1.0 points (p < 0.001) (mean baseline = 29.0). Over 90% of the patients received only one injection in the first 24 h and 50% had a categorical response within 30 min. Severely agitated patients responded rapidly after a single injection of olanzapine with mild levels of sedation and without serious treatment-emergent adverse events.
    No preview · Article · Oct 2007 · Human Psychopharmacology Clinical and Experimental
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    ABSTRACT: This study compared the effects of olanzapine (OLZ) with those of quetiapine (QUE) for improving negative symptoms in patients diagnosed with schizophrenia or schizoaffective disorder who had prominent negative symptoms and marked deficits in social or occupational functioning. In this 6-month, multicenter, double-blind clinical trial, patients were randomized to treatment with OLZ (n = 171, 10-20 mg/d) or QUE (n = 175, 300-700 mg/d). Patients were treated at community mental health centers and assigned case managers who developed individualized psychosocial treatment plans. The primary efficacy measure was the reduction in negative symptoms using the Scale for the Assessment of Negative Symptoms. Secondary measures assessed changes in functioning, psychopathology, and treatment tolerability. Treatment with OLZ or QUE led to a significant reduction in negative symptoms, with no between-group difference (P = 0.09). Both treatment groups also showed significant improvement on most efficacy measures. Olanzapine-treated patients showed significantly greater improvement on positive symptoms and on several measures of functioning including Global Assessment of Functioning Scale, Quality of Life Instrumental Role domain, and level of effort in psychosocial or occupational rehabilitation programs. Significantly more OLZ-treated patients completed the study (52.6% OLZ, 37.7% QUE, P = 0.007). Treatment differences in safety were relatively small and not thought to be clinically relevant. Patients with schizophrenia who manifest prominent negative symptoms and marked functional deficits demonstrated significant improvement in negative symptoms after treatment with OLZ or QUE. Greater improvement in positive symptoms and a greater study completion rate may hold relevance to enhanced functional outcomes observed after OLZ therapy.
    Full-text · Article · Nov 2006 · Journal of Clinical Psychopharmacology