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  • Title: Flexible dosing with paliperidone ER in the treatment of patients with acutely exacerbated schizophrenia: results from a single-arm, open-label study.
    Author: Schmauss M, Jukić V, Siracusano A, Bidzan L, Badescu GM, Maciulis V, Lahaye M, Hoeben D, Tessier C, Schreiner A.
    Journal: Curr Med Res Opin; 2012 Aug; 28(8):1395-404. PubMed ID: 22746355.
    Abstract:
    OBJECTIVE: To extend findings from fixed-dose, double-blind, placebo-controlled clinical trials in selected patient populations by using flexibly-dosed oral paliperidone extended-release (ER) in a more naturalistic setting. METHODS: Adults hospitalized with an acute exacerbation of schizophrenia were prospectively treated with open-label flexibly-dosed paliperidone ER 3-12 mg/day for 6 weeks. RESULTS: Overall, 294 patients were treated. The primary endpoint, defined as ≥30% improvement in Positive and Negative Syndrome Scale total scores from baseline to endpoint, was achieved by 66.3% of patients. The percentage of patients rated as at least 'markedly ill' in Clinical Global Impression of Severity scale decreased from baseline (74.1%) to endpoint (20.0%). Patient functioning, assessed by the Personal and Social Performance scale, improved significantly from 50.0 ± 14.3 at baseline to 63.6 ± 14.9 at endpoint (p < 0.0001). Concomitant benzodiazepines were newly initiated in 191 patients (65.0%), and new concomitant medications other than benzodiazepines were started after baseline for 133 patients (45.2%), most frequently paracetamol, zolpidem, and zopiclone. No unexpected adverse events were identified. CONCLUSIONS: These data support findings in more selected patient populations treated with fixed-dose paliperidone ER. Flexibly-dosed paliperidone ER administered in a naturalistic hospital setting to a more representative patient population experiencing an acute episode of schizophrenia, was associated with clinically meaningful treatment response. Strength of conclusions is limited by the open-label design and lack of a comparator group. Furthermore, some of the improvements observed may in part be associated with increased attention provided to patients and concomitant use of psychotropic medications, such as benzodiazepines, during this study.
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