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Bioanalytical methods are used in research on small-molecule and large-molecule drug products to determine analytes and their metabolites in biological matrices such as blood, plasma, serum, urine, feces, saliva, other biological fluids, or tissues. Validation of a bioanalytical method is the essential step before the implementation of the method into routine use in toxicokinetic or pharmacokinetic studies. Harmonization of recommendations for the validation of bioanalytical methods has been advocated for many years. In 2022, The International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use (ICH) finished the work on final version of the ICH M10 guideline, as a combination of four regional guidelines (American, European, Brazilian and Japanise). The document uniforms rules for the performance of the bioanalytical method validation and documentation of sample analysis from clinical and non-clinical studies in most countries around the world, which are submitted to registration authorities.
Gniazdowska et al. (2023) studied this question.