Development and Validation of Sample Preparation and an HPLC Analytical Method for Dissolution Testing in Fed-State Simulated Gastric Fluid-Illustrating Its Application for Ibuprofen and Ketoconazole Immediate Release Tablets

AAPS PharmSciTech
Harsh S ShahKenneth R Morris

Abstract

Dissolution testing and solubility determinations in different biorelevant media have gained considerable interest in the pharmaceutical industry from early-stage development of new products to forecasting bioequivalence. Among all biorelevant fluids, the preparation of fed-state simulated gastric fluid (FeSSGF) and handling of samples from dissolution/solubility testing in FeSSGF is considered to be relatively challenging. Challenges include maintaining the stability of FeSSGF medium upon sampling, filtration, and mitigating analytical interference of excipients and milk components. To overcome these challenges, standard and uniform working practices are required that are not only helpful in preparation of stable FeSSGF but also serve as a harmonizing guide for the collection of dissolution/solubility samples and their subsequent processing (i.e., handling and assay). The optimization of sample preparation methodology is crucial to reduce method-related variance by ensuring specificity, robustness, and reproducibility with acceptable recovery of the analytes. The sample preparation methodology includes a combination of techniques including filtration, solvent treatment, and centrifugation to remove the interfering media-relate...Continue Reading

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