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  • Title: International Conference on Harmonisation: guidance on Q1D bracketing and matrixing designs for stability testing of new drug substances and products; availability. Notice.
    Author: Food and Drug Administration, HHS.
    Journal: Fed Regist; 2003 Jan 16; 68(11):2339-40. PubMed ID: 12532979.
    Abstract:
    The Food and Drug Administration (FDA) is announcing the availability of a guidance entitled "Q1D Bracketing and Matrixing Designs for Stability Testing of New Drug Substances and Products." The guidance was prepared under the auspices of the International Conference on Harmonisation of Technical Requirements for Registration of Pharmaceuticals for Human Use (ICH). This guidance is an annex to an ICH guidance entitled "Q1A(R) Stability Testing of New Drug Substances and Products" (66 FR 56332, November 7, 2001). It is intended to provide guidance on the application of reduced designs (i.e., bracketing and matrixing) for stability studies conducted in accordance with the principles outlined in ICH Q1A(R).
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