ICH M7(step4)基因毒性杂质评估和控制◆中英

ASSESSMENT AND CONTROL OF DNA REACTIVE(MUTAGENIC) IMPURITIES IN PHARMACEUTICALS TOLIMIT POTENTIAL CARCINOGENIC RISK为限制潜在致癌风险而对药物中DNA活性（诱变性）杂质进行的评估和控制M7Current Step 4 versiondated 23 June 2014This Guideline has been developed by the appropriate ICH Expert Working Group and has been subject to consultation by the regulatory parties, in accordance with the ICH Process. At Step 4 of the Process the final draft is recommended for adoption to the regulatory bodies of the European Union, Japan and USA.M7Document History 文件历史Current Step 4 version 现行版本第4阶段Legal Notice: This document is protected by copyright and may be used, reproduced, incorporated into other works, adapted, modified, translated or distributed under a public license provided that ICH's copyright in the document is acknowledged at all times. In case of any adaption, modification or translation of the document, reasonable steps must be taken to clearly label, demarcate or otherwise identify that changes were made to or based on the original document. Any impression that the adaption, modification or translation of the original document is endorsed or sponsored by the ICH must be avoided.The document is provided "as is" without warranty of any kind. In no event shall the ICH or the authors of the original document be liable for any claim, damages or other liability arising from the use of the document.The above-mentioned permissions do not apply to content supplied by third parties. Therefore, for documents where the copyright vests in a third party, permission for reproduction must be obtained from this copyright holder.ASSESSMENT AND CONTROL OF DNA REACTIVE (MUTAGENIC) IMPURITIES IN PHARMACEUTICALS TO LIMIT POTENTIALCARCINOGENIC RISK为限制潜在致癌风险而对药物中DNA活性（诱变性）杂质进行的评估和控制ICH Harmonised Tripartite GuidelineICH三方协调指南Having reached Step 4 of the ICH Process at the ICH Steering Committee meeting on 5 June 2014, this Guideline is recommended for adoption to the three regulatory parties to ICHASSESSMENT AND CONTROL OF DNA REACTIVE (MUTAGENIC) IMPURITIES IN PHARMACEUTICALS TO LIMIT POTENTIALCARCINOGENIC RISK为限制潜在致癌风险而对药物中DNA活性（诱变性）杂质进行的评估和控制1. INTRODUCTION概述The synthesis of drug substances involves the use of reactive chemicals, reagents, solvents, catalysts, and other processing aids. As a result of chemical synthesis or subsequent degradation, impurities reside in all drug substances and associated drug products. While ICH Q3A(R2): Impurities in New Drug Substances and Q3B(R2): Impurities in New Drug Products (Ref. 1, 2) provides guidance for qualification and control for the majority of the impurities, limited guidance is provided for those impurities that are DNA reactive. The purpose of this guideline is to provide a practical framework that is applicable to the identification, categorization, qualification, and control of these mutagenic impurities to limit potential carcinogenic risk. This guideline is intended to complement ICH Q3A(R2), Q3B(R2) (Note 1), and ICH M3(R2): Nonclinical Safety Studies for the Conduct of Human Clinical Trials and Marketing Authorizations for Pharmaceuticals (Ref. 3).原料药合成牵涉到使用活性化学物质、试剂、溶剂、催化剂和其它工艺助剂，导致在所有原料药及其制剂中会残留有化学合成或其降解产物、杂质。

在ICH Q3A(R2)新原料药中的杂质和Q3B(R2)新制剂中的杂质（参考文献1、2）中提供了关于主要杂质定性和控制的指南，对DNA活性杂质给出了有限的指南。

本指南的目的是提供实用框架，以应用于这些诱变杂质的鉴别、分类、定性和控制，对潜在致癌风险进行控制。

本指南意在补充ICH Q3A(R2)、Q3B(R2)（注解1）和ICH M3(R2)药物人用临床试验和上市许可中的非临床安全性研究（参考文献3）。

This guideline emphasizes considerations of both safety and quality risk management in establishing levels of mutagenic impurities that are expected to pose negligible carcinogenic risk. It outlines recommendations for assessment and control of mutagenic impurities that reside or are reasonably expected to reside in final drug substance or product, taking into consideration the intended conditions of human use.本指南强调在建立诱变性杂质水平时考虑安全性和质量风险管理两方面，该水平应该仅表现出可忽略不计的致癌风险。

指南在考虑药物在人用时的条件下，给出了对原料药或制剂中残留或可能残留的诱变性杂质评估和控制的建议。

2. SCOPE OF GUIDELINE 指南适用范围This document is intended to provide guidance for new drug substances and new drug products during their clinical development and subsequent applications for marketing. It also applies to post-approval submissions of marketed products, and to new marketing applications for products with a drug substance that is present in a previously approved product, in both cases only where:本指南意在给研发期间和上市申报期间的新原料药和新制剂提供指南。

它也适用于已上市药物的批准后申报，以及之前已批准上市的制剂中的同样原料药生产的另一制剂新上市申报。

当上述申报符合以下情形时：—Changes to the drug substance synthesis result in new impurities or increased acceptance criteria for existing impurities;—原料药合成变更，导致产生新杂质或已有杂质可接受标准增加—Changes in the formulation, composition or manufacturing process result in new degradation products or increased acceptance criteria for existing degradation products;—配方变更、组分变更或生产工艺变更，导致产生新的降解产物或已有降解产物可接受标准增加—Changes in indication or dosing regimen are made which significantly affect the acceptable cancer risk level.—指征变更或给药方案变更，导致可接受癌症风险水平受到重大影响Assessment of the mutagenic potential of impurities as described in this guideline is not intended for the following types of drug substances and drug products: biological/biotechnological, peptide, oligonucleotide, radiopharmaceutical,fermentation products, herbal products, and crude products of animal or plant origin.本指南中描述的杂质潜在诱变性评估不适用于以下类型的原料药和制剂：生物/生物技术制品、肽类、寡核苷酸、放射药物、发酵产品、草药制品和动物或植物来源的粗品。