Pharmacokinetic characteristics of risperidone ISM for the treatment of schizophrenia.

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Tác giả: Christoph U Correll, Georgios Schoretsanitis

Ngôn ngữ: eng

Ký hiệu phân loại:

Thông tin xuất bản: England : Expert opinion on drug metabolism & toxicology , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 738875

INTRODUCTION: Risperidone-ISM is a novel intramuscular long-acting injectable formulation (LAI) of risperidone approved for the treatment of schizophrenia in adults. Knowledge regarding the pharmacokinetic properties of risperidone-ISM can improve care. AREAS COVERED: We assessed the pharmacokinetic properties of risperidone-ISM. Most importantly, risperidone-ISM achieves therapeutic blood levels within 12-48 h after the first injection without the need for overlapping oral cotreatment, loading dose, or booster injection. Second, the in-situ microparticle (ISM) technology achieves stable blood levels, allowing currently 1-monthly injections. Third, females and patients with higher body mass index may have lower risperidone-ISM clearance, translating into higher risperidone serum levels. Fourth, there are only minimal risperidone-ISM clearance differences between deltoid and gluteal injections that balance out at steady state. However, aspects including pharmacogenetic and drug-drug interactions involving risperidone-ISM would benefit from further clarification. EXPERT OPINION: Risperidone-ISM achieves therapeutic blood levels within 12-48 h after a single injection, currently lasting for 1 month, easing the initiation of a LAI risperidone formulation in adults with schizophrenia where LAIs remain underutilized. Prescriptions of LAIs, including risperidone-ISM, are likely to increase with an improved understanding of pharmacokinetic profiles and patient acceptability and outcomes, including in real-world settings informing drug selection.
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