Synopses & Reviews
The United States Food and Drug Administration (FDA) and other regulatory bodies around the world require that impurities in drug substance and drug product levels recommended by the International Conference on Harmonisation (ICH) be isolated and characterized.
Identifying process-related impurities and degradation products also helps us to understand the production of impurities and assists in defining degradation mechanisms. When this process is performed at an early stage, there is ample time to address various aspects of drug development to prevent or control the production of impurities and degradation products well before the regulatory filing and thus assure production of a high-quality drug product.
This book, therefore, has been designed to meet the need for a reference text on the complex process of isolation and characterization of process-related (synthesis and formulation) impurities and degradation products to meet critical requlatory requirements.
It's objective is to provide guidance on isolating and characterizing impurities of pharmaceuticals such as drug candidates, drug substances, and drug products. The book outlines impurity identification processes and will be a key resource document for impurity analysis, isolation/synthesis, and characterization.
- Provides valuable information on isolation and characterization of impurities.
- Gives a regulatory perspective on the subject.
- Describes various considerations involved in meeting regulatory requirements.
- Discusses various sources of impurities and degredation products.
Synopsis
The objective of this book is to provide guidance on isolating and characterizing impurities of pharmaceuticals such as drug candidates, drug substances, and drug products. It meets the critical need for a text that provides detailed guidance as to how these activities are actually carried out in the pharmaceutical industry.
Impurity identification is critical in the pharmaceutical industry because the FDA and other regulatory bodies around the world require that impurities in drug substance and drug product at certain levels be isolated and characterized. The book outlines impurity identification processes and will be a key resource document for impurity analysis, isolation/synthesis, and characterization.
- Provides valuable information on isolation and characterization of impurities.
- Gives a regulatory perspective on the subject.
- Describes various considerations involved in meeting regulatory requirements.
- Discusses various sources of impurities and degredation products.
About the Author
Satinder Ahuja obtained his Ph.D. in analytical chemistry from the Philadelphia College of Pharmacy and Science. He serves as adjunct research professor at Pace University and is a consultant to pharmaceutical companies as president of Ahuja Consulting.
Pfizer Global R&D, Connecticut, USA
Table of Contents
OVERVIEW: ISOLATION AND CHARACTERIZATION OF IMPURITIES;
REVIEW OF REGULATORY GUIDANCE ON IMPURITIES; POLYMORPHIC & SOLVATOMORPHIC IMPURITIES; IMPURITIES IN DRUG PRODUCTS; STRATEGIES FOR INVESTIGATION AND CONTROL OF PROCESS AND DEGRADATION-RELATED IMPURITIES; REFERENCE STANDARDS; SAMPLE SELECTION FOR ANALYTICAL METHOD DEVELOPMENT; SAMPLE PREPARATION METHODS; ISOLATION METHODS I: THIN-LAYER CHROMATOGRAPHY; ISOLATION METHODS II: COLUMN CHROMATOGRAPHY; MASS SPECTRAL CHARACTERIZATION; NMR CHARACTERIZATION OF IMPURITES; HYPHENATED CHARACTERIZATION TECHNIQUES; SOLVING IMPURITY/DEGRADATION PROBLEMS: CASE STUDIES