Patent · US Active

Anti-transferrin receptor antibodies with tailored affinity

US10323089B2 · kind B2 · utility

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9Claims
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Key dates

Filing dateDec 19, 2017
Grant dateJun 18, 2019
Priority date
Expiry dateDec 19, 2037

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07K2317/76
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

Herein is reported an anti-transferrin receptor antibody that specifically binds to human transferrin receptor and cynomolgus transferrin receptor, which comprises i) a humanized heavy chain variable domain derived from the heavy chain variable domain of SEQ ID NO: 01, and ii) a humanized light chain variable domain derived from the light chain variable domain of SEQ ID NO: 26, wherein the antibody has an off-rate for the human transferrin receptor that is equal to or less than (i.e. at most) the off-rate of the anti-transferrin receptor antibody 128.1 for the cynomolgus transferrin receptor, whereby the off-rates are determined by surface plasmon resonance, and whereby the anti-transferrin receptor antibody 128.1 has a heavy chain variable domain of SEQ ID NO: 64 and a light chain variable domain of SEQ ID NO: 65.

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