IP Library › Granted Patent US 8,734,800
Granted Patent B2
US 8,734,800 · App. 13/722,919 · Granted May 27, 2014

Subtypes of humanized antibody against interleukin-6 receptor

Inventors: Katsuhiro Kano (Tokyo, JP); Isamu Terashima (Tokyo, JP)
Assignee: Chugai Seiyaku Kabushiki Kaisha
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Quick Facts
Patent No.
US 8,734,800
App. No.
13/722,919
Granted
May 27, 2014
Kind
B2
Abstract

An antibody subtype (1) which is a subtype of the humanized PM-1 antibody against interleukin-6 receptor (IL-6R) and in which one C-terminal of the heavy chain is Pro-NH 2 (447), and an antibody subtype (2) which is a subtype of the humanized PM-1 antibody against interleukin-6 receptor (IL-6R) and in which both C-terminals of the heavy chain are Pro-NH 2 (447), and a pharmaceutical composition comprising them.

Claims (36)

1. A method of inhibiting biological activity of interleukin-6 receptor (IL-6R) with an antibody subtype against IL-6R, comprising contacting the IL-6R with the antibody subtype, wherein the antibody subtype comprises a heavy chain that has amino acids 1-448 of the amino acid sequence set forth in SEQ ID NO: 1 in which an N-terminal glutamine (Gln) is pyroglutamylated, a heavy chain that has amino acids 1-447 of the amino acid sequence set forth in SEQ ID NO: 1 in which an N-terminal glutamine (Gln) is pyroglutamylated and a C-terminal that is Pro-NH 2 , and a light chain that has the amino acid sequence set forth in SEQ ID NO: 2.

2. The method of claim 1 , wherein the antibody subtype is provided in a pharmaceutical composition.

3. The method of claim 2 , wherein the pharmaceutical composition is administered to an individual with rheumatoid arthritis or juvenile idiopathic arthritis for the treatment of the rheumatoid arthritis or juvenile idiopathic arthritis.

4. The method of claim 3 , wherein the individual has rheumatoid arthritis.

5. The method of claim 3 , wherein the individual has juvenile idiopathic arthritis.

6. The method of claim 5 , wherein the juvenile idiopathic arthritis is systemic idiopathic arthritis.

7. The method of claim 1 , wherein the antibody subtype has been produced by a Chinese Hamster Ovary (CHO) cell.

8. A method of inhibiting biological activity of interleukin-6 receptor (IL-6R) with an antibody subtype against IL-6R, comprising contacting IL-6R with the antibody subtype, wherein the antibody subtype comprises two heavy chains that have amino acids 1-447 of the amino acid sequence set forth in SEQ ID NO: 1 in which an N-terminal glutamine (Gln) is pyroglutamylated and a C-terminal that is Pro-NH 2 , and a light chain that has the amino acid sequence set forth in SEQ ID NO: 2.

9. The method of claim 8 , wherein the antibody subtype is provided in a pharmaceutical composition.

10. The method of claim 9 , wherein the pharmaceutical composition is administered to an individual with rheumatoid arthritis or juvenile idiopathic arthritis for the treatment of the rheumatoid arthritis or juvenile idiopathic arthritis.

11. The method of claim 10 , wherein the individual has rheumatoid arthritis.

12. The method of claim 10 , wherein the individual has juvenile idiopathic arthritis.

13. The method of claim 12 , wherein the juvenile idiopathic arthritis is systemic idiopathic arthritis.

14. The method of claim 8 , wherein the antibody subtype has been produced by a Chinese Hamster Ovary (CHO) cell.

15. A method of inhibiting biological activity of interleukin-6 receptor (IL-6R) with a first antibody subtype and a second antibody subtype against IL-6R, comprising contacting the IL-6R with the first antibody subtype and the second antibody subtype, wherein the first antibody subtype comprises a heavy chain that has amino acids 1-448 of the amino acid sequence set forth in SEQ ID NO: 1 in which an N-terminal glutamine (Gln) is pyroglutamylated, a heavy chain that has amino acids 1-447 of the amino acid sequence set forth in SEQ ID NO: 1 in which an N-terminal glutamine (Gln) is pyroglutamylated and a C-terminal that is Pro-NH 2 , and a light chain that has the amino acid sequence set forth in SEQ ID NO: 2, and wherein the second antibody subtype comprises two heavy chains that have amino acids 1-447 of the amino acid sequence set forth in SEQ ID NO: 1 in which an N-terminal glutamine (Gln) is pyroglutamylated and a C-terminal that is Pro-NH 2 , and a light chain that has the amino acid sequence set forth in SEQ ID NO: 2.

16. The method of claim 15 , wherein the first antibody subtype and the second antibody subtype are provided in a pharmaceutical composition.

17. The method of claim 16 , wherein the pharmaceutical composition is administered to an individual with rheumatoid arthritis or juvenile idiopathic arthritis for the treatment of the rheumatoid arthritis or juvenile idiopathic arthritis.

18. The method of claim 17 , wherein the individual has rheumatoid arthritis.

19. The method of claim 17 , wherein the individual has juvenile idiopathic arthritis.

20. The method of claim 19 , wherein the juvenile idiopathic arthritis is systemic idiopathic arthritis.

21. The method of claim 15 , wherein the first antibody subtype and the second antibody subtype have been produced by a Chinese Hamster Ovary (CHO) cell.

22. A method for the treatment of rheumatoid arthritis or juvenile idiopathic arthritis in an individual, comprising administering to the individual a pharmaceutical composition comprising an antibody subtype, wherein the antibody subtype comprises a heavy chain that has amino acids 1-448 of the amino acid sequence set forth in SEQ ID NO: 1 in which an N-terminal glutamine (Gln) is pyroglutamylated, a heavy chain that has amino acids 1-447 of the amino acid sequence set forth in SEQ ID NO: 1 in which an N-terminal glutamine (Gln) is pyroglutamylated and a C-terminal that is Pro-NH 2 , and a light chain that has the amino acid sequence set forth in SEQ ID NO: 2.

23. The method of claim 22 , wherein the treatment is for rheumatoid arthritis.

24. The method of claim 22 , wherein the treatment is for juvenile idiopathic arthritis.

25. The method of claim 24 , wherein the juvenile idiopathic arthritis is systemic idiopathic arthritis.

26. The method of claim 22 , wherein the antibody subtype has been produced by a Chinese Hamster Ovary (CHO) cell.

27. A method for the treatment of rheumatoid arthritis or juvenile idiopathic arthritis in an individual, comprising administering to the individual a pharmaceutical composition comprising an antibody subtype, wherein the antibody subtype comprises two heavy chains that have amino acids 1-447 of the amino acid sequence set forth in SEQ ID NO: 1 in which an N-terminal glutamine (Gln) is pyroglutamylated and a C-terminal that is Pro-NH 2 , and a light chain that has the amino acid sequence set forth in SEQ ID NO: 2.

28. The method of claim 27 , wherein the treatment is for rheumatoid arthritis.

29. The method of claim 27 , wherein the treatment is for juvenile idiopathic arthritis.

30. The method of claim 29 , wherein the juvenile idiopathic arthritis is systemic idiopathic arthritis.

31. The method of claim 27 , wherein the antibody subtype has been produced by a Chinese Hamster Ovary (CHO) cell.

32. A method for the treatment of rheumatoid arthritis or juvenile idiopathic arthritis in an individual, comprising administering to the individual a pharmaceutical composition comprising a first antibody subtype and a second antibody subtype, wherein the first antibody subtype comprises a heavy chain that has amino acids 1-448 of the amino acid sequence set forth in SEQ ID NO: 1 in which an N-terminal glutamine (Gln) is pyroglutamylated, a heavy chain that has amino acids 1-447 of the amino acid sequence set forth in SEQ ID NO: 1 in which an N-terminal glutamine (Gln) is pyroglutamylated and a C-terminal that is Pro-NH 2 , and a light chain that has the amino acid sequence set forth in SEQ ID NO: 2, and wherein the second antibody subtype comprises two heavy chains that have amino acids 1-447 of the amino acid sequence set forth in SEQ ID NO: 1 in which an N-terminal glutamine (Gln) is pyroglutamylated and a C-terminal that is Pro-NH 2 , and a light chain that has the amino acid sequence set forth in SEQ ID NO: 2.

33. The method of claim 32 , wherein the treatment is for rheumatoid arthritis.

34. The method of claim 32 , wherein the treatment is for juvenile idiopathic arthritis.

35. The method of claim 34 , wherein the juvenile idiopathic arthritis is systemic idiopathic arthritis.

36. The method of claim 32 , wherein the first antibody subtype and the second antibody subtype have been produced by a Chinese Hamster Ovary (CHO) cell.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 14, 2014
From: KANO, KATSUHIRO; TERASHIMA, ISAMU
To: CHUGAI SEIYAKU KABUSHIKI KAISHA
Reel/Frame 032669/0435 →
Priority Claims (1)
JP 2004-087578 · Mar 24, 2004 · national
Continuity (2)
Continuation 10593786
Related Publication 20130209456A1 · Aug 15, 2013