24-02-2022 дата публикации
Номер: US20220056142A1
Принадлежит:
Anti-FGFR3 antigen-binding proteins and antigen-binding binding fragments thereof are provided. Methods of inhibiting FGFR3 activity and methods of treating FGFR3-mediated diseases and disorders are also provided. 1. An antigen-binding protein or antigen-binding fragment thereof that specifically binds to fibroblast growth factor receptor 3 (FGFR3) , comprising an antibody heavy chain variable (VH) domain and an antibody light chain variable (VL) domain , wherein:(a) the VH domain comprises{'sup': 1', '2', '1', '2, 'a CDR-H1 sequence comprising the amino acid sequence of GXTFTDXE (SEQ ID NO: 157), wherein Xis Y or D and Xis F or Y;'}{'sup': 3', '3', '4', '4', '5', '5, 'a CDR-H2 sequence comprising the amino acid sequence of IDPETGXT (SEQ ID NO: 158), wherein Xis G or S; or a CDR-H2 sequence comprising the amino acid sequence of INPNNGXT (SEQ ID NO: 159), wherein Xis G or V; or a CDR-H2 sequence comprising the amino acid sequence of VXPETGGT (SEQ ID NO: 160), wherein Xis D or E;'}{'sup': 6', '7', '8', '9', '10', '11', '6', '7', '8', '9', '10', '11, 'a CDR-H3 sequence comprising the amino acid sequence of TRXYXGYXXXXDY (SEQ ID NO: 161), wherein Xis T or N, Xis D or E, Xis S or P, Xis Q, R, or Y, Xis T or A, Xis F or M; and'}the VL domain comprises{'sup': 12', '13', '14', '12', '13', '14, 'a CDR-L1 sequence comprising the amino acid sequence of QSXLYSXNXKNY (SEQ ID NO: 162), wherein Xis L or V, Xis N, D, or S, and Xis Q or N;'}{'sup': 15', '15, 'a CDR-L2 sequence comprising the amino acid sequence of XAS (SEQ ID NO: 163), wherein Xis W, Y, or F;'}{'sup': 16', '16, 'a CDR-L3 sequence comprising the amino acid sequence of QQYYSYRT (SEQ ID NO: 75), LQYDNLLWT (SEQ ID NO: 81), or HQYLSXYT (SEQ ID NO: 290) wherein Xis P or S;'}(b) the VH domain comprisesa CDR-H1 sequence comprising the amino acid sequence of GYTFTDYN (SEQ ID NOs: 76 and 82);a CDR-H2 sequence comprising the amino acid sequence of INPNNGGT (SEQ ID NOs: 77 and 83);a CDR-H3 sequence comprising the amino acid ...
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