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EVALUATION STUDIES
JOURNAL ARTICLE
MULTICENTER STUDY
RESEARCH SUPPORT, NON-U.S. GOV'T
Safety and efficacy of long-acting injectable risperidone in daily practice: an open-label, noninterventional, prospective study in schizophrenia and related disorders.
This postauthorization safety study evaluated the long-term safety, tolerability, and efficacy of risperidone long-acting injectable (RLAI) in routine clinical practice. In this 6-month, multicenter, European, naturalistic study, patients were included if, during routine clinical practice, long-term antipsychotic therapy with RLAI was deemed necessary by the treating physician. Efficacy measures included Clinical Global Impression-Severity and Global Assessment of Functioning. Safety was evaluated by recording treatment-emergent adverse events (AE). RLAI was initiated in 5134 patients (aged 14-94 years); predominantly male (58.6%) with paranoid schizophrenia (69.8%). RLAI initial doses were 25 mg every 2 weeks (37.0% patients), 37.5 mg (18.0%), and 50 mg (44.4%). Treatment was completed by 4314 patients (84.0%). RLAI was discontinued on account of loss to follow-up (n=346; 6.7%), insufficient response (n=116; 2.3%), and AEs (n=106; 2.1%). Clinical Global Impression-Severity significantly improved from baseline to endpoint (P<0.001). Patient functioning on the Global Assessment of Functioning scale also significantly improved from baseline to endpoint (45.4 + or - 16.0 vs. 62.4 + or - 17.7, respectively, P<0.001). Treatment-emergent AEs were recorded by 1018 (20%) of patients. AEs occurring in > or = 5% of patients were akathisia, extrapyramidal disorders, depression, psychotic disorder, anxiety, and weight gain. Serious AEs were reported by 384 (8%) patients. This study confirms good safety, tolerability, and efficacy with RLAI in routine clinical practice.
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