Anti-C5 antibodies having improved pharmacokinetics
First Claim
Patent Images
1. An isolated antibody, or antigen-binding fragment thereof, that:
- (a) binds to complement component human C5;
(b) inhibits the cleavage of C5 into fragments C5a and C5b; and
(c) comprises;
(i) a heavy chain CDR1 comprising the amino acid sequence depicted in SEQ ID NO;
23, (ii) a heavy chain CDR2 comprising the amino acid sequence depicted in SEQ ID NO;
19, (iii) a heavy chain CDR3 comprising the amino acid sequence depicted in SEQ ID NO;
3, (iv) a light chain CDR1 comprising the amino acid sequence depicted in SEQ ID NO;
4, (v) a light chain CDR2 comprising the amino acid sequence depicted in SEQ ID NO;
5, and (vi) a light chain CDR3 comprising the amino acid sequence depicted in SEQ ID NO;
6.
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Abstract
The disclosure provides antibodies that are useful for, among other things, inhibiting terminal complement (e.g., the assembly and/or activity of the C5b-9 TCC) and C5a anaphylatoxin-mediated inflammation and, thus, treating complement-associated disorders. The antibodies have a number of improved properties relative to eculizumab, including, e.g., increased serum half-life in a human.
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Citations
17 Claims
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1. An isolated antibody, or antigen-binding fragment thereof, that:
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(a) binds to complement component human C5; (b) inhibits the cleavage of C5 into fragments C5a and C5b; and (c) comprises;
(i) a heavy chain CDR1 comprising the amino acid sequence depicted in SEQ ID NO;
23, (ii) a heavy chain CDR2 comprising the amino acid sequence depicted in SEQ ID NO;
19, (iii) a heavy chain CDR3 comprising the amino acid sequence depicted in SEQ ID NO;
3, (iv) a light chain CDR1 comprising the amino acid sequence depicted in SEQ ID NO;
4, (v) a light chain CDR2 comprising the amino acid sequence depicted in SEQ ID NO;
5, and (vi) a light chain CDR3 comprising the amino acid sequence depicted in SEQ ID NO;
6. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An isolated antibody, or antigen-binding fragment thereof, that:
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(a) binds to complement component human C5; (b) inhibits the cleavage of human C5 into fragments C5a and C5b; and (c) comprises;
(i) a heavy chain CDR1 comprising the amino acid sequence depicted in SEQ ID NO;
23, (ii) a heavy chain CDR2 comprising the amino acid sequence depicted in SEQ ID NO;
19, (iii) a heavy chain CDR3 comprising the amino acid sequence depicted in SEQ ID NO;
3, (iv) a light chain CDR1 comprising the amino acid sequence depicted in SEQ ID NO;
4, (v) a light chain CDR2 comprising the amino acid sequence depicted in SEQ ID NO;
5, and (vi) a light chain CDR3 comprising the amino acid sequence depicted in SEQ ID NO;
6,wherein the [(KD of the antibody or antigen-binding fragment thereof for human C5 at pH 6.0 and at 25°
C.)/(KD of the antibody or antigen-binding fragment thereof for human C5 at pH 7.4 and at 25°
C.)] is greater than 25, andand wherein the antibody has a serum half-life in humans that is at least 25 days. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification