Effective Blood Concentration of Micafungin for Pulmonary Aspergillosis(Pharmacology)

概要

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We previously reported that a 150mg or higher daily dose is necessary for treatment of pulmonary aspergillosis with micafungin (MCFG) alone in patients with blood diseases. Since a delay in the treatment of pulmonary aspergillosis has a major influence on patient survival, clarification of the effective blood concentration of MCFG enables rapid treatment. Establishment of an appropriate dose is also useful for reducing the risk of adverse effects, such as MCFG-induced impairment of liver function. Aiming for the rapid and safe treatment of pulmonary aspergillosis, we established new clinical diagnostic criteria of mycosis and MCFG therapeutic effect judgment criteria, and investigated the effective blood concentration of MCFG for mycosis. The blood trough level of MCFG in patients with blood diseases at each clinical improvement rating of pulmonary aspergillosis was 5.23±2.44μg/ml in markedly improved cases, 4.08±2.63μg/ml in improved cases, and 3.45±1.63μg/ml in successfully prevented cases, showing no significant difference among the 3 groups. Based on this finding, it is advisable to target a 5μg/ml or higher blood trough level of MCFG in establishing the dose for aspergillosis in patients with blood diseases.
公益社団法人日本薬学会の論文
2006-09-01