IP Library Granted Patent US 10,184,007
Granted Patent B2
US 10,184,007 · App. 15/433,482 · Granted Jan 22, 2019

Methods of treating a kit-associated cancer by administering anti-kit antibodies

Inventors: Yaron Hadari (Harrison, NY); Elizabeth M Mandel-Bausch (Pleasant Prairie, WI); Francis Joseph Carr (Balmedie, GB); Timothy David Jones (Babraham, GB); Laura Clare Alexandra Perry (Lidgate, GB)
Assignee: Celldex Therapeutics, Inc.
C07K16/40A61K31/4045A61K31/506A61K38/19A61K39/3955A61K39/39533A61K39/39558A61K45/06A61K47/6851C07K16/2803C07K16/32C12Y207/10001G01N33/566G01N33/5748A61K2039/505C07K2317/14C07K2317/21C07K2317/24C07K2317/31C07K2317/55C07K2317/56C07K2317/565C07K2317/567C07K2317/76C07K2317/77C07K2317/92G01N2333/70596G01N2333/91205
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Quick Facts
Patent No.
US 10,184,007
App. No.
15/433,482
Granted
Jan 22, 2019
Kind
B2
Abstract

Provided herein, in one aspect, are antibodies that immunospecifically bind to a human KIT antigen comprising the fourth and/or fifth extracellular Ig-like domains (that is, D4 and/or D5 domains), polynucleotides comprising nucleotide sequences encoding such antibodies, and expression vectors and host cells for producing such antibodies. The antibodies can inhibit KIT activity, such as ligand-induced receptor phosphorylation. Also provided herein are kits and pharmaceutical compositions comprising antibodies that specifically bind to a KIT antigen, as well as methods of treating or managing a KIT-associated disorder or disease and methods of diagnosing a KIT-associated disorder or disease using the antibodies described herein.

Claims (136)

1. A method for treating or managing a KIT-associated-cancer that is accompanied by gain-of-function KIT activity, increase in KIT activity, or overexpression of KIT, comprising administering to a subject in need thereof a therapeutically effective amount of and isolated antibody, or an antigen-binding fragment thereof, which immunospecifically binds to hum KIT and comprises:

(i) a light chain variable region (“VL”) comprising the amino acid sequence:

DIVMTQSPSX K1 LSASVGDRVTITCKASQNVRTNVAWYQQKPGKAPKX K2 LIYSASYRYSGVPDRFX K3 GSGSGTDFTLTISSLQX K4 EDFAX K5 YX K6 CQQY NSYPRTFGGGTKVEIK (SEQ. ID NO.: 12), wherein X K1 is an amino acid with an aromatic or aliphatic hydroxyl side chain, X K2 is an amino acid with an aliphatic hydroxyl side chain, X K4 is an amino acid with an aliphatic hydroxyl side chain or is P, X K5 is an amino acid with a charged or acidic side chain, and X K6 is an amino acid with an aromatic side chain; and

(ii) a heavy chain variable region (“VH”) comprising the amino acid sequence:

QVQLVQSGAEX H1 KKPGASVKX H2 SCKASGYTFTDYYINWVX H3 QAPGKG LEWIARIYPGSGNTYYNEKFKGRX H4 TX H5 TAX H6 KSTSTAYMX H7 LSSLRSE DX H8 AVYFCARGVYYFDYWGQGTTVTVSS (SEQ. ID NO.: 11), wherein X H1 is an amino acid with an aliphatic side chain, X H2 is an amino acid with an aliphatic side chain, X H3 is an amino acid with a polar or basic side chain, X H4 is an amino acid with an aliphatic side chain, X H5 is an amino acid with aliphatic side chain, X H6 is an amino acid with an acidic side chain, X H7 is an amino acid with an acidic or amide derivative side chain, and X H8 is an amino acid with and aliphatic hydroxyl side chain.

2. The method of claim 1 , wherein the KIT-associated cancer is refractory to treatment by a tyrosine kinase inhibitor.

3. The method of claim 1 , wherein the method further comprises administering a second therapeutic agent.

4. The method of claim 3 , wherein the second therapeutic agent is a chemotherapeutic agent, tyrosine kinase inhibitor, a histone deacetylase inhibitor, an antibody, or a cytokine.

5. The method of claim 4 , wherein the tyrosine kinase inhibitor is imatinib mesylate or SU11248.

6. A method for inhibiting KIT activity by at least about 10% in a cell expressing KIT comprising contacting the cell with an effective amount of an isolated antibody, or an antigen-binding fragment thereof, which immunospecifically binds to human KIT and comprises:

(i) a VL comprising the amino acid sequence:

DIVMTQSPSX K1 LSASVGDRVTITCKASQNVRTNVAWYQQKPGKAPKX K2 LIYSASYRYSGVPDRFX K3 GSGSGTDFTLTISSLQX K4 EDFAX K5 CQQY NSYPRTFGGGTKVEIK (SEQ. ID NO.: 12), wherein X K1 is an amino acid with an aromatic or aliphatic hydroxyl side chain, X K2 is an amino acid with an aliphatic or aliphatic hydroxyl side chain, X K3 is an amino acid with an aliphatic hydroxyl side chain, X K4 is an amino acid with an aliphatic hydroxyl side chain or is P, X K5 is an amino acid with a charged or acidic side chain, and X K6 is an amino acid with an aromatic side chain; and

(ii) a VH comprising the amino acid sequence:

QVQLVQSGAEX H1 KKPGASVKX H2 SCKASGYTFTDYYINWVX H3 QAPGKG LEWIARIYPGSGNTYYNEKFKGRX H4 TX h5 TAX H6 KSTSTAYMX H7 LSSLRSE DX H8 AVYFCARGVYYFDYWGQGTTVTVSS (SEQ. ID NO.: 11), wherein X H1 is an amino acid with an aliphatic side chain, X H2 is an amino acid with an aliphatic side chain, X H3 is an amino acid with a polar or basic side chain, X H4 is an amino acid with an aliphatic side chain, X H5 is an amino acid with an aliphatic side chain, X H6 is an amino acid with an acidic side chain, X H7 is an amino acid with an acidic or amide derivative side chain, and X H8 is an amino acid with an aliphatic hydroxyl side chain.

7. The method of claim 1 , wherein X K1 is the amino acid F or S, X K2 is the amino acid A or S, X K3 is the amino acid T or S, X K4 is the amino acid S or P, X K5 is the amino acid D or T, X K6 is the amino acid F or Y.

8. The method of claim 1 , wherein X H1 is the amino acid L or V, X H2 is the amino acid L or V, X H3 is the amino acid K or R, X H4 is the amino acid V or A, X H5 is the amino acid L or I, X H6 is the amino acid E or D, X H7 is the amino acid Q or E, and X H8 is the amino acid S or T.

9. The method of claim 1 , wherein the antibody is a human IgG1 or IgG4 antibody.

10. The method claim 1 , wherein the antibody is a monoclonal antibody.

11. The method of claim 1 , wherein the antibody or antigen-binding fragment thereof is an antigen-binding fragment of a Fab fragment.

12. The method of claim 1 , wherein the antibody is a bispecific antibody.

13. The method of claim 1 , wherein the antibody is fused to a heterologous polypeptide.

14. The method of claim 1 , wherein the antibody or antigen-binding fragment thereof is a conjugate linked to an agent.

15. The method of claim 6 , wherein X K1 is the amino acid F or S, X K2 is the amino acid A or S, X K3 is the amino acid T or S, X K4 is the amino acid S or P, X K5 is the amino acid D or T, X K6 is the amino acid F or Y.

16. The method of claim 6 , wherein X H1 is the amino acid L or V, X H2 is the amino acid L or V, X H3 is the amino acid K or R, X H4 is the amino acid V or A, X H5 is the amino acid L or I, X H6 is the amino acid E or D, X H7 is the amino acid Q or E, and X H8 is the amino acid S or T.

17. A method or treating or managing a KIT-associated-cancer that is accompanied by gain-of-function KIT activity, increase in KIT activity, or overexpression of KIT, comprising administering to a subject in need thereof a therapeutically effective amount of an isolated antibody, or an antigen-binding fragment thereof, which immunospecifically binds to human KIT and comprises a VL and VH, wherein:

(i) the VL comprises the amino acid sequence of SEQ. ID NO.: 8 and the VH comprises the amino acid sequence of SEQ. ID NO.: 4;

(ii) the VL comprises the amino acid sequence of SEQ. ID NO.: 10 and the VH comprises the amino acid sequence of SEQ. ID NO.: 3;

(iii) the VL comprises the amino acid sequence of SEQ. ID NO.: 8 and the VH comprises the amino acid sequence of SEQ. ID NO.: 6;

(iv) the VL comprises the amino acid sequence of SEQ. ID NO.: 7 and the VH comprises the amino acid sequence of SEQ. ID NO.: 2;

(v) the VL comprises the amino acid sequence of SEQ. ID NO.: 7 and the VH comprises the amino acid sequence of SEQ. ID NO.: 2;

(vi) the VL comprises the amino acid sequence of SEQ. ID NO.: 7 and the VH comprises the amino acid sequence of SEQ. ID NO.: 3;

(vii) the VL comprises the amino acid sequence of SEQ. ID NO.: 7 and VH comprises the amino acid sequence of SEQ. ID NO.: 4;

(viii) the VL comprises the amino acid sequence of SEQ. ID NO.: 7 and the VH comprises the amino acid sequence of SEQ. ID NO.: 6;

(ix) the VL comprises the amino acid sequence of SEQ. ID NO.: 8 and the VH comprises the amino acid sequence of SEQ. ID NO.: 2;

(x) the VL comprises the amino acid sequence of SEQ. ID NO.: 8 and the VH comprises the amino acid sequence of SEQ. ID NO.: 3;

(xi) the VL comprises the amino acid sequence of SEQ. ID NO.: 8 and the VH comprises the amino acid sequence of SEQ. ID NO.: 5;

(xii) the VL comprises the amino acid sequence of SEQ. ID NO.: 9 and the VH comprises the amino acid sequence of SEQ. ID NO.: 2;

(xiii) the VL comprises the amino acid sequence of SEQ. ID NO.: 9 and the VH comprises the amino acid sequence of SEQ. ID NO.: 3;

(xiv) the VL comprises the amino acid sequence of SEQ. ID NO.: 9 and the VH comprises the amino acid sequence of SEQ. ID NO.: 4;

(xv) the VL comprises the amino acid sequence of SEQ. ID NO.: 9 and the VH comprises the amino acid sequence of SEQ. ID NO.: 5;

(xvi) the VL comprises the amino acid sequence of SEQ. ID NO.: 9 and the VH comprises the amino acid sequence of SEQ. ID NO.: 6;

(xvii) the VL comprises the amino acid sequence of SEQ. ID NO.: 10 and the VH comprises the amino acid sequence of SEQ. ID NO.: 2;

(xviii) the VL comprises the amino acid sequence of SEQ. ID NO.: 10 and the VH comprises the amino acid sequence of SEQ. ID NO.: 4;

(xix) the VL comprises the amino acid sequence of SEQ. ID NO.: 10 and the VH comprises the amino acid sequence of SEQ. ID NO.: 5;

(xx) the VL comprises the amino acid sequence of SEQ. ID NO.: 10 and the VH comprises the amino acid sequence of SEQ. ID NO.: 6.

18. A method for inhibiting KIT activity by at least about 10% in a cell expressing KIT comprising contacting the cell with an effective amount of an isolated antibody, or an antigen-binding fragment thereof, which immunspecifically binds to human KIT and comprises a VL and a VH, wherein:

(i) the VL comprises the amino acid sequence of SEQ. ID NO.: 8 and the VH comprises the amino acid sequence of SEQ. ID NO.: 4;

(ii) the VL comprises the amino acid sequence of SEQ. ID NO.: 10 and the VH comprises the amino acid sequence of SEQ. ID NO.: 3;

(iii) the VL comprises the amino acid sequence of SEQ. ID NO.: 8 and the VH comprises the amino acid sequence of SEQ. ID NO.: 6;

(iv) the VL comprises the amino acid sequence of SEQ. ID NO.: 7 and the VH comprises the amino acid sequence of SEQ. ID NO.: 5;

(v) the VL comprises the amino acid sequence of SEQ. ID NO.: 7 and the VH comprises the amino acid sequence of SEQ. ID NO.: 2;

(vi) the VL comprises the amino acid sequence of SEQ. ID NO.: 7 and the VH comprises the amino acid sequence of SEQ. ID NO.: 3;

(vii) the VL comprises the amino acid sequence of SEQ. ID NO.: 7 and the VH comprises the amino acid sequence of SEQ. ID NO.: 4;

(viii) the VL comprises the amino acid sequence of SEQ. ID NO.: 7 and the VH comprises the amino acid sequence of SEQ. ID NO.: 6;

(ix) the VL comprises the amino acid sequence of SEQ. ID NO.: 8 and the VH comprises the amino acid sequence of SEQ. ID NO.: 2;

(x) the VL comprises the amino acid sequence of SEQ. ID NO.: 8 and the VH comprises the amino acid sequence of SEQ. ID NO.: 3;

(xi) the VL comprises the amino acid sequence of SEQ. ID NO.: 8 and the VH comprises the amino acid sequence of SEQ. ID NO.: 5;

(xii) the VL comprises the amino acid sequence of SEQ. ID NO.: 9 and the VH comprises the amino acid sequence of SEQ. ID NO.: 2;

(xiii) the VL comprises the amino acid sequence of SEQ. ID NO.: 9 and the VH comprises the amino acid sequence of SEQ. ID NO.: 3;

(xiv) the VL comprises the amino acid sequence of SEQ. ID NO.: 9 and the VH comprises the amino acid sequence of SEQ. ID NO.: 4;

(xv) the VL comprises the amino acid sequence of SEQ. ID NO.: 9 and the VH comprises the amino acid sequence of SEQ. ID NO.: 5;

(xvi) the VL comprises the amino acid sequence of SEQ. ID NO.: 9 and the VH comprises the amino acid sequence of SEQ. ID NO.: 6;

(xvii) the VL comprises the amino acid sequence of SEQ. ID NO.: 10 and the VH comprises the amino acid sequence of SEQ. ID NO.: 2;

(xviii) the VL comprises the amino acid sequence of SEQ. ID NO.: 10 and the VH comprises the amino acid sequence of SEQ. ID NO.: 4;

(xix) the VL comprises the amino acid sequence of SEQ. ID NO.: 10 and the VH comprises the amino acid sequence of SEQ. ID NO.: 5;

(xx) the VL comprises the amino acid sequence of SEQ. ID NO.: 10 and the VH comprises the amino acid sequence of SEQ. ID NO.: 6.

19. A method for treating or managing a KIT-associated-cancer that is accompanied by gain-of-function KIT activity, increase in KIT activity, or overexpression of KIT, comprising administering to a subject in need thereof a therapeutically effective amount of an isolated antibody, or an antigen-binding fragment thereof, which immunospecifically binds to human KIT, wherein said antibody or antigen-binding fragment thereof comprises:

(i) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 19, 20, and 21, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 2;

(ii) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 19, 20, and 21, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 3;

(iii) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 19, 20, and 21, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 4;

(iv) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 19, 20, and 21, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 5;

(v) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 19, 20, and 21, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 6;

(vi) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 59, 60, and 61, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 2;

(vii) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 59, 60, and 61, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 3;

(viii) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 59, 60, and 61, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 4;

(ix) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 59, 60, and 61, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 5;

(x) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 59, 60, and 61, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 6;

(xi) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 66, 67, and 68, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 2;

(xii) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 66, 67, and 68, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 3;

(xiii) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 66, 67, and 68, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 4;

(xiv) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 66, 67, and 68, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 5;

(xv) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 66, 67, and 68, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 6;

(xvi) a VL comprising the amino acid sequence of SEQ. ID NO.: 7, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 16, 17, and 18, respectively;

(xvii) a VL comprising the amino acid sequence of SEQ. ID NO.: 8, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 16, 17, and 18, respectively;

(xviii) a VL comprising the amino acid sequence of SEQ. ID NO.: 9, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 16, 17, and 18, respectively;

(xix) a VL comprising the amino acid sequence of SEQ. ID NO.: 10, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 16, 17, and 18, respectively;

(xx) a VL comprising the amino acid sequence of SEQ. ID NO.: 7, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 56, 57, and 58, respectively;

(xxi) a VL comprising the amino acid sequence of SEQ. ID NO.: 8, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 56, 57, and 58, respectively;

(xxii) a VL comprising the amino acid sequence of SEQ. ID NO.: 9, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 56, 57, and 58, respectively;

(xxiii) a VL comprising the amino acid sequence of SEQ. ID NO.: 10, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 56, 57, and 58, respectively;

(xxiv) a VL comprising the amino acid sequence of SEQ. ID NO.: 7, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 56, 62, and 63, respectively;

(xxv) a VL comprising the amino acid sequence of SEQ. ID NO.: 8, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 56, 62, and 63, respectively;

(xxvi) a VL comprising the amino acid sequence of SEQ. ID NO.: 9, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 56, 62, and 63, respectively;

(xxvii) a VL comprising the amino acid sequence of SEQ. ID NO.: 10, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 56, 62, and 63, respectively;

(xxviii) a VL comprising the amino acid sequence of SEQ. ID NO.: 7, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 64, 65, and 58, respectively;

(xxix) a VL comprising the amino acid sequence of SEQ. ID NO.: 8, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 64, 65, and 58, respectively;

(xxx) a VL comprising the amino acid sequence of SEQ. ID NO.: 9, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 64, 65, and 58, respectively;

(xxxi) a VL comprising the amino acid sequence of SEQ. ID NO.: 10, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 64, 65, and 58, respectively;

(xxii) a VL comprising the amino acid sequence of SEQ. ID NO.: 7, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 70, 71, and 72, respectively;

(xxiii) a VL comprising the amino acid sequence of SEQ. ID NO.: 8, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 70, 71, and 72, respectively; or

(xxxiv) a VL comprising the amino acid sequence of SEQ. ID NO.: 9, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 70, 71, and 72, respectively.

20. A method for inhibiting KIT activity by at least about 10% in a cell expressing KIT comprising contacting the cell with an effective amount of an isolated antibody, or an antigen-binding fragment thereof, which immunospecifically binds to human KIT, wheren said antibody or antigen-binding fragment thereof comprises:

(i) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 19, 20, and 21, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 2;

(ii) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 19, 20, and 21, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 3;

(iii) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 19, 20, and 21, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 4;

(iv) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 19, 20, and 21, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 5;

(v) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 19, 20, and 21, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 6;

(vi) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 59, 60, and 61, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 2;

(vii) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 59, 60, and 61, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 3;

(viii) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 59, 60, and 61, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 4;

(ix) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 59, 60, and 61, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 5;

(x) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 59, 60, and 61, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 6;

(xi) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 66, 67, and 68, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 2;

(xii) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 66, 67, and 68, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 3;

(xiii) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 66, 67, and 68, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 4;

(xiv) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 66, 67, and 68, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 5;

(xv) a VL comprising a VL CDR1, VL CDR2, and VL CDR3 comprising the amino acid sequence of SEQ. ID NOs.: 66, 67, and 68, respectively; and a VH comprising the amino acid sequence of SEQ. ID NO.: 6;

(xvi) a VL comprising the amino acid sequence of SEQ. ID NO.: 7, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 16, 17, and 18, respectively;

(xvii) a VL comprising the amino acid sequence of SEQ. ID NO.: 8, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 16, 17, and 18, respectively;

(xviii) a VL comprising the amino acid sequence of SEQ. ID NO.: 9, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 16, 17, and 18, respectively;

(xix) a VL comprising the amino acid sequence of SEQ. ID NO.: 10, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 16, 17, and 18, respectively;

(xx) a VL comprising the amino acid sequence of SEQ. ID NO.: 7, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 56, 57, and 58, respectively;

(xxi) a VL comprising the amino acid sequence of SEQ. ID NO.: 8, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 56, 57, and 58, respectively;

(xxii) a VL comprising the amino acid sequence of SEQ. ID NO.: 9, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 56, 57, and 58, respectively;

(xxiii) a VL comprising the amino acid sequence of SEQ. ID NO.: 10, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 56, 57, and 58, respectively;

(xxiv) a VL comprising the amino acid sequence of SEQ. ID NO.: 7, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid

(xxv) a VL comprising the amino acid sequence of SEQ. ID NO.: 8, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 56, 62, and 63, respectively;

(xxvi) a VL comprising the amino acid sequence of SEQ. ID NO.: 9, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 56, 62, and 63, respectively;

(xxvii) a VL comprising the amino acid sequence of SEQ. ID NO.: 10, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 56, 62, and 63, respectively;

(xxviii) a VL comprising the amino acid sequence of SEQ. ID NO.: 7, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 64, 65, and 58, respectively;

(xxix) a VL comprising the amino acid sequence of SEQ. ID NO.: 8, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 64, 65, and 58, respectively;

(xxx) a VL comprising the amino acid sequence of SEQ. ID NO.: 9, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 64, 65, and 58, respectively;

(xxxi) a VL comprising the amino acid sequence of SEQ. ID NO.: 10, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 64, 65, and 58, respectively;

(xxxii) a VL comprising the amino acid sequence of SEQ. ID NO.: 7, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 70, 71, and 72, respectively;

(xxxiii) a VL comprising the amino acid sequence of SEQ. ID NO.: 8, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 70, 71, and 72, respectively; or

(xxxiv) a VL comprising the amino acid sequence of SEQ. ID NO.: 9, and a VH comprising a VH CDR1, VH CDR2, and VH CDR3 comprising the amino acid sequences of SEQ. ID NOs.: 70, 71, and 72, respectively.

Assignments (5)
MERGER Recorded Mar 29, 2017
From: KOLLTAN PHARMACEUTICALS, INC.
To: KOLLTAN, LLC
Reel/Frame 041784/0041 →
MERGER Recorded Mar 29, 2017
From: KOLLTAN, LLC
To: CELLDEX THERAPEUTICS, INC.
Reel/Frame 041784/0062 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 28, 2017
From: HADARI, YARON; MANDEL-BAUSCH, ELIZABETH M.
To: KOLLTAN PHARMACEUTICALS, INC.
Reel/Frame 041769/0583 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 28, 2017
From: CARR, FRANCIS JOSEPH; JONES, TIMOTHY DAVID; PERRY, LAURA CLARE ALEXANDRA
To: ANTITOPE, LTD.
Reel/Frame 041769/0616 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 28, 2017
From: ANTITOPE, LTD.
To: KOLLTAN PHARMACEUTICALS, INC.
Reel/Frame 041769/0677 →
Continuity (5)
Division 15084715 · Mar 30, 2016
Division 13949931 · Jul 24, 2013
Provisional Application 61675751 · Jul 25, 2012
Provisional Application 61675762 · Jul 25, 2012
Related Publication 20170158778A1 · Jun 8, 2017