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The purpose of this document is to address specific considerations to enable the practical implementation of ICH Q3D Guideline for Elemental Impurities in the European Union. It is intended to provide guidance for Applicants/MAHs, drug product, drug substance and excipient manufacturers, as well as regulators. In addition to new applications, it will also apply to variations to existing authorised medicinal products. 

In the ICH Q3D Guideline for elemental impurities, the focus of the control of elemental impurities is shifted compared to the CHMP Guideline on the Specification Limits for Residues of Metal Catalysts or Metal Reagents1. Indeed: 

• the latter guideline focuses on control of metals intentionally added during the synthesis of the drug substance; 

• the former acknowledges that this is one of the most important sources of elemental impurities, but also takes into account other sources and therefore includes elements not used as catalysts and reagents. 

→ Implementation strategy of ICH Q3D guideline

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L’Association A3P est un acteur incontournable de l’industrie pharmaceutique et biotechnologique. 
Créée en 1986, elle contribue au bon développement de la production de médicaments et de matériels propres et stériles, elle anime un réseau de 21 000 professionnels, fabricants et fournisseurs, dans le cadre de Congrès internationaux et de journées techniques.

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