The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 07, 2023

Filed:

Jul. 17, 2019
Applicant:

Chugai Seiyaku Kabushiki Kaisha, Tokyo, JP;

Inventors:

Yoshinao Ruike, Singapore, SG;

Zenjiro Sampei, Singapore, SG;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 39/395 (2006.01); G01N 33/53 (2006.01); C07K 16/18 (2006.01); G01N 33/68 (2006.01); G01N 33/564 (2006.01); A61K 31/519 (2006.01);
U.S. Cl.
CPC ...
C07K 16/18 (2013.01); A61K 31/519 (2013.01); G01N 33/564 (2013.01); G01N 33/6863 (2013.01); C07K 2317/21 (2013.01); C07K 2317/24 (2013.01); C07K 2317/76 (2013.01); C07K 2317/92 (2013.01); C07K 2317/94 (2013.01); G01N 2333/4716 (2013.01);
Abstract

An objective of the invention is to provide anti-C5 antibodies and methods of using the same. The invention provides anti-C5 antibodies and methods of using the same. In some embodiments, an isolated anti-C5 antibody of the present invention binds to an epitope within the β chain of C5 with a higher affinity at neutral pH than at acidic pH. The invention also provides isolated nucleic acids encoding an anti-C5 antibody of the present invention. The invention also provides host cells comprising a nucleic acid of the present invention. The invention also provides a method of producing an antibody comprising culturing a host cell of the present invention so that the antibody is produced. The invention further provides a method of producing an anti-C5 antibody comprising immunizing an animal against a polypeptide which comprises the MG1-MG2 domain of the β chain of C5. Anti-C5 antibodies of the present invention may be for use as a medicament. Anti-C5 antibodies of the present invention may be for use in treating a complement-mediated disease or condition which involves excessive or uncontrolled activation of C5. Anti-C5 antibodies of the present invention may be for use in enhancing the clearance of C5 from plasma.


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