Zdrowie i gospodarka · 13.07.2018
Q3D(R1) Elemental Impurities; International Council for Harmonisation; Draft Guidance for Industry; Availability
The Food and Drug Administration (FDA or Agency) is announcing the availability of a draft guidance for industry entitled "Q3D(R1) Elemental Impurities." The draft guidance was prepared under the auspices of the International Council for Harmonisation (ICH), formerly the International Conference on Harmonisation. The draft guidance revises the existing ICH guidance for industry "Q3D Elemental Impurities" and provides an updated permitted daily exposure (PDE) for the cadmium inhalation route of exposure. The updated PDE of 3 micrograms ([micro]g)/day is based on a modifying factor approach like that used for calculating the PDEs for the cadmium oral and parenteral routes of exposure. The draft guidance is intended to correct a calculation error in the PDE for cadmium by the inhalation route of exposure. Following deliberations within the Q3D Expert Working Group, the revised calculation is based on a modifying factor approach that is consistent with the oral and parenteral PDE calculations.