Regulatory Pathway for Genotoxic Impurities in Europe, US, Canada, India, Australia and UK

Abstract

Genotoxic Impurities (GTIs) pose a significant risk to pharmaceutical safety due to their ability to damage DNA and cause cancer-related mutations. Regulatory agencies such as the EMA, USFDA, Heath Canada, CDSCO and TGA have established stringent frameworks to manage these risks, incorporating tools such as Structure-Activity Relationships (SAR) analysis and the Threshold of Toxicological Concern (TTC) to establish safe exposure limits. These frameworks emphasize both proactive impurity profiling and the development of sensitive analytical methods for trace-level detection. This review delves into the classification, mechanisms and control strategies for GTIs, highlighting innovations such as AI-driven predictive modeling and global efforts to improve impurity detection and management. Furthermore, it emphasizes the evolving role of risk-based approaches in addressing emerging genotoxic challenges throughout the pharmaceutical manufacturing pipeline. By combining cutting-edge science and regulatory rigor, the pharmaceutical industry continues to reduce GTI risks, ensuring the development of safer, higher-quality medicines for patients worldwide.

Keywords: Genotoxic Impurities; Pharmaceutical Safety; Regulatory Guidelines; Risk Assessment; Threshold of Toxicological Concern (TTC)