Validated Stability Indicating High Performance Liquid Chromatographic Determination of Lesinurad

Journal of Chromatographic Science
Khalid A M AttiaAhmed H Abdelazim

Abstract

Lesinurad is a novel selective uric acid reabsorption inhibitor which has been newly approved for the treatment of the chronic gout. The behavior of lesinurad under various stress conditions (hydrolysis, oxidation, thermal and photolysis) has been investigated as per ICH guidelines. The drug has been found to be labile to acidic hydrolysis, basic hydrolysis and oxidation but stable in neutral, thermal and photolytic conditions. A high performance liquid chromatographic method has been developed for selective determination of the studied drug in the presence of its related degradation products. Good chromatographic resolution has been achieved using a reversed phase BDS Hypersil C18 stationary phase with an isocratic elution of a mobile phase consists of acetonitrile:water (65:35, v/v) at a flow rate of 1 mL/min and UV detection at 290 nm. Two degradation products have been identified by IR and mass spectral scans. The method was validated according to ICH guidelines. The linearity range has been found to be acceptable over the concentration range of 1-20 μg/mL. The developed method has been successfully applied for the estimation of lesinurad in its pharmaceutical dosage form and could be used for the routine analysis of the st...Continue Reading

References

Jun 1, 2014·Journal of Pharmaceutical Analysis·M BlessyY K Agrawal

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