DoE-Based Analytical Quality Risk Management for Enhanced AQbD Approach to Economical and Eco-Friendly RP-HPLC Method for Synchronous Estimation of Multiple FDC Products of Antihypertensive Drugs

According to the literature review, numerous chromatographic methods have been published for estimation of fixed-dose combination products of telmisartan but no reverse-phase high-pressure liquid chromatographic (RP-HPLC) method has been published yet for synchronous estimation of fixed-dose combination (FDC) products of telmisartan to save time, cost and solvent for analysis. Hence, an economical and eco-friendly RP-HPLC method has been developed for synchronous estimation of multiple FDC products of antihypertensive drugs using the quality risk management (QRM) and DoE-based enhanced analytical quality by design approach. The analytical-QRM was started with the identification of potential method risk parameters followed by their risk assessment by risk priority number ranking and filtering. The identified critical method parameters were optimized using the DoE-based central composite design. The method operable design range was navigated and the control strategy was framed for control and mitigation of risk throughout the life-cycle of the developed method. The method was developed using Shimpack Octadecyl silane (ODS) C18 column and acetonitrile-1.0%v/v triethylamine in water (pH 6.0; 45 + 55, %v/v). The developed method was validated as per the International Council for Harmonization Q2 (R1) guideline. The developed method was applied for the analysis of seven different antihypertensive dosage forms. The developed RP-HPLC method can be used as an eco-friendly, robust and economical alternative analytical tool to several published methods for estimation of FDC products of antihypertensive drugs in the pharmaceutical industry.