Abstract
Peramivir is a newly approved selective neuraminidase inhibitor designed to inhibit influenza virus infection. We report a robust and sensitive method utilizing simple precipitation extraction with LC-MS/MS for the high-throughput quantification. Addition of 0.06 M of ammonium formate and 0.1% formic acid in mobile phase could help reduce the matrix effect. This method uses 100 µl of plasma and covers a linear concentration range from 5 to 10,000 ng/ml. Other validation parameters are also evaluated and meet regulatory expectations by US FDA guidelines. The developed HPLC-MS/MS method has been successfully applied to support a clinical pharmacokinetic study. The strategy presented here can be applied elsewhere and may be useful for other amphiphilic drugs.
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