Establishing a multi-method approach for unprecedented detection and quantification of 13 genotoxic impurities (GTIs) in Apixaban drug substance through ultra-performance liquid chromatography (UPLC)

This groundbreaking study introduces a pioneering development of multi-method approach for the first-ever detection and quantification of 13 genotoxic impurities (GTIs) in Apixaban (Apx) drug substance using ultra-performance liquid chromatography (UPLC) with ultraviolet (UV) detector. In this novel endeavor, two distinct UPLC-UV methods, Method A (for impurities A to G) and Method B (for impurities H to M), were meticulously developed and validated as per International Council for Harmonization (ICH) guidelines to address the challenge of identification and control of 13 GTIs in Apx drug substance. The validation process included rigorous assessment of linearity, accuracy, specificity, precision, limit of quantification (LOQ), and limit of detection (LOD) for each impurity in each method which marks a significant advancement in pharmaceutical analysis. The developed methods address the regulatory requirements set forth by ICH M7(R2) guidelines by providing a reliable approach for quantifying GTIs in Apx drug substance at trace levels to minimize the potential carcinogenic risk to the patients.