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Enhancing the circulating half-life of antibody-based fusion proteins

  • US 20060034836A1
  • Filed: 11/07/2005
  • Published: 02/16/2006
  • Est. Priority Date: 02/11/2000
  • Status: Active Grant
First Claim
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1. A method for treating a disease, the method comprising the step of administering to a patient an antibody-based fusion protein comprising an N-terminal immunoglobulin (Ig) chain linked to a C-terminal non-Ig protein the C-terminal non-Ig protein comprising an amino acid substitution introducing a hydrophobic or non-polar amino acid within 10 amino acids of the N-terminus of the C-terminal non-Ig protein, wherein said antibody-based fusion protein has a longer circulating half-life in vivo than a corresponding antibody-based fusion protein without said amino acid substitution.

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