Pharmaceutical Quality Assurance
Bioanalytical Method Development
Overview

Bioanalytical Method Development

Bioanalytical Method Development contains 9 topic pages in Pharmaceutical Quality Assurance.

Bioanalytical Method Development encompasses the design, optimisation, and validation of analytical procedures used to quantify drugs and their metabolites within biological matrices such as plasma, urine, whole blood, tissue, and saliva. These procedures form the scientific foundation of pharmacokinetic, pharmacodynamic, toxicokinetic, and bioequivalence studies that are mandatory prerequisites for the regulatory approval of both new chemical entities and generic pharmaceutical products. This chapter traces the complete bioanalytical workflow, beginning with the regulatory framework governing bioanalysis, proceeding through compound characterisation, biological matrix selection, sample preparation, chromatographic and mass spectrometric method development, and culminating in full method validation, incurred sample reanalysis, pharmacokinetic data analysis, and bioequivalence assessment. A rigorous understanding of this workflow is essential for pharmaceutical scientists engaged in drug development, clinical pharmacology, and regulatory affairs.

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Introduction to Bioanalysis and Regulatory Framework

Definition and Scope Bioanalysis is defined as the quantitative measurement of drugs, whether small molecules or biological therapeutics, and their...

Compound Understanding and Pre-Development Planning

Physicochemical Characterisation Before any bioanalytical method development commences, the analyst must gather comprehensive physicochemical data...

Biological Matrix Selection and Sample Collection

Selecting the Biological Matrix The choice of biological matrix is governed by the study objective, the physicochemical properties of the drug, and...

Sample Preparation Method Development

Rationale for Sample Preparation Biological matrices contain thousands of endogenous compounds, including proteins, phospholipids, bile acids, and inorganic...

Chromatographic and Mass Spectrometric Method Development

Instrument Configuration and MS Tuning The majority of contemporary bioanalytical methods employ liquid chromatography-tandem mass spectrometry using a...

Full Method Validation under ICH M10

Regulatory Basis of Validation Bioanalytical method validation establishes documented evidence that a method is suitable for its intended purpose and is...

Incurred Sample Reanalysis

Purpose and Regulatory Basis Incurred sample reanalysis involves the re-analysis of a defined subset of actual study samples, containing drug arising from...

Pharmacokinetic Data Analysis and Reporting

Non-Compartmental Analysis and Key Parameters Following generation of validated concentration-time data, non-compartmental analysis is typically performed...

Bioequivalence Studies: Design and Statistical Evaluation

Study Design A bioequivalence study compares the rate and extent of absorption of a test formulation, typically a generic or modified product, against a...