ANTIBODIES WITH REDUCED BINDING TO PROCESS IMPURITIES
The present invention relates to variant antibodies and methods of generating said antibodies with a reduced level of binding to process impurities. In particular, the invention describes variant IgG4 antibodies which have been modified in the heavy chain constant region at any one or a combination...
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Main Authors | , , , , , , |
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Format | Patent |
Language | English |
Published |
25.07.2019
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Subjects | |
Online Access | Get full text |
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Summary: | The present invention relates to variant antibodies and methods of generating said antibodies with a reduced level of binding to process impurities. In particular, the invention describes variant IgG4 antibodies which have been modified in the heavy chain constant region at any one or a combination of amino acids in the region between Kabat residues 203 and 256, wherein the variant IgG4 antibody has a reduced level of binding to host cell protein (HCP), compared to an unmodified IgG4 antibody. The invention also relates to compositions comprising said variant IgG4 antibodies. |
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Bibliography: | Application Number: US201716339027 |