Development and Validation of Stability-Indicating HPLC Methods for Quantitative Analysis of Multicomponent Pharmaceutical Formulations: A Review

Abstract

The development and validation of stability-indicating High-PerformanceLiquid Chromatography (HPLC) methods have become indispensableprotocols in modern pharmaceutical analysis, particularly for complexmulticomponent formulations. Multicomponent combinations offer enhancedclinical efficacy and patient compliance but present profound chemical andanalytical challenges due to overlapping retention profiles, diversephysicochemical properties, and variable degradation kinetics. Thiscomprehensive review systematically examines the theoretical frameworks and practical execution of stability-indicating HPLC methods (SI-HPLC). Wediscuss forced degradation paradigms under varied environmental stressors,including hydrolytic (acidic, basic, neutral), oxidative, photolytic, and thermal conditions, which are pivotal in identifying potential degradation products (DPs) and establishing the specificity of the analytical system. The review details analytical lifecycle stages from initial method scouting, stationary phase selection (including advanced core-shell and sub-2 µm particles), and mobile phase optimization using modern Quality by Design (QbD) approaches, to the rigorous validation criteria set by the InternationalCouncil for Harmonisation (ICH) Q2(R2) guidelines. Key analytical validation parameters, namely accuracy, precision, linearity, range, specificity, limit of detection (LOD), limit of quantitation (LOQ), and robustness, are scrutinized within the context of multi-analyte resolution. Additionally, we evaluate contemporary hyphenated modalities like HPLC-MS/MS and Ultra-High-Performance Liquid Chromatography (UHPLC) that overcome traditional limitations in resolution and sensitivity. Finally, this work details standard operating procedures, experimental strategies, and future analytical frameworks aimed at enhancing regulatory compliance and standardizing pharmaceutical quality control pipelines globally. KEYWORDS: Stability-Indicating HPLC, Multicomponent Formulations,Forced Degradation, Method Validation, ICH Q2(R2), Quality by Design(QbD).