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  • Title: Regulatory perspectives from Japan - comparability of biopharmaceuticals.
    Author: Kawanishi T.
    Journal: Biologicals; 2006 Mar; 34(1):65-8. PubMed ID: 16330220.
    Abstract:
    In Japan there is no official guideline about comparability assessment of biotechnological products at present. However, there is some notifications which should be referred to, when the manufacturer changes the manufacturing process. Here, regulatory perspectives from Japan on the comparability assessment are presented. When establishing the comparability of biotechnological products derived from different manufacturing processes and the validity of modified manufacturing process, rational step-by-step approaches based on both product and process aspects would be useful. At first, relevant physicochemical and biological properties of products including purity, impurity profiles and stability should be compared before and after the manufacturing change, depending on the type and nature of the desired products. It is also necessary to examine the capacities of the new manufacturing process for ensuring the consistent production of the active protein product as well as the anticipated elimination of potential impurities and contaminants. Further relevant assessment of preclinical and clinical comparability of product may be necessary in some cases.
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