TRACE LEVEL DETERMINATION AND QUANTIFICATION OF POTENTIAL GENOTOXIC IMPURITIES IN DASATINIB DRUG SUBSTANCE BY UHPLC/INFINITY LC

Abstract

Objective: A simple, cost-effective and mass compatible ultra-high fast performance liquid chromatographic (Agilent-Infinity LC 1290) method has been developed and validated for the determination of potentially genotoxic impurities in dasatinib active pharmaceutical ingredients.Methods: This method comprises the determination of three possible genotoxic impurities in dasatinib. The mobile phase is trifluoroacetic acid, acetonitrile and water with linear gradient elution curve number 6. The column used for the development and validation is zorbax RRHD eclipse plus C18 with the length of 50 mm, the internal diameter of 2.1 mm and particle size of 1.8 microns.Results: The limit of detection of the potential genotoxic impurities are less than 0.1 µg/ml with respect to dasatinib test concentration of 1000 µg/ml. The limit of quantification of the potential genotoxic impurities is less than 0.3 µg/ml with respect to dasatinib test concentration of 1000 µg/ml.Conclusion: This method has been validated as per ICH guidelines Q2 (R1). These three potential mutagenic impurities are not degradant impurities of dasatinib and its only process related impurities. The method development has been approached using the QbD principle

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