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  • Title: A randomized, placebo- and active-controlled study of paliperidone extended release for the treatment of acute manic and mixed episodes of bipolar I disorder.
    Author: Vieta E, Nuamah IF, Lim P, Yuen EC, Palumbo JM, Hough DW, Berwaerts J.
    Journal: Bipolar Disord; 2010 May; 12(3):230-43. PubMed ID: 20565430.
    Abstract:
    OBJECTIVES: To evaluate the antimanic efficacy and safety of paliperidone extended-release (ER) tablets in patients with bipolar I disorder. METHODS: This study included a 3-week, double-blind, acute treatment phase (paliperidone ER versus placebo, with quetiapine as control), and a 9-week, double-blind, maintenance phase (paliperidone ER versus quetiapine). Patients [n = 493; Young Mania Rating Scale (YMRS) score >or= 20] were randomized (2:2:1) to flexibly dosed paliperidone ER (3-12 mg/day), quetiapine (400-800 mg/day), or placebo for the acute treatment phase. During the maintenance phase, patients assigned to placebo were switched to paliperidone ER but not included in analysis of efficacy. RESULTS: Paliperidone ER was superior to placebo at the 3-week endpoint {primary outcome; least-squares mean difference in change from baseline in YMRS scores [95% confidence interval (CI)]: -5.5 (-7.57; -3.35); p < 0.001} and noninferior to quetiapine at the 12-week endpoint [least-squares mean difference (95% CI): 1.7 (-0.47; 3.96)]. The median mode dose during the 12-week treatment period was 9 mg for paliperidone ER and 600 mg for quetiapine. The most common (>or= 10%) treatment-emergent adverse events during the 12-week period were: headache (16%), somnolence (10%), and akathisia (10%) for paliperidone ER; somnolence (21%), sedation and dry mouth (17% each), headache (14%), and dizziness (13%) for quetiapine. Body weight increase >or= 7% from baseline to 12-week endpoint was 8% with paliperidone ER and 17% with quetiapine. A higher percentage of paliperidone ER (13.9%) versus quetiapine patients (7.5%) 'switched to depression' at the12-week endpoint. CONCLUSIONS: Paliperidone ER (3-12 mg/day) was efficacious and tolerable in the treatment of acute mania.
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