| CPC C07K 16/2809 (2013.01) [A61K 39/3955 (2013.01); A61K 39/39558 (2013.01); A61K 40/11 (2025.01); A61K 40/4225 (2025.01); C07K 16/18 (2013.01); C07K 16/28 (2013.01); C12N 5/06 (2013.01); C12N 15/63 (2013.01); A61K 2039/505 (2013.01); A61K 2239/31 (2023.05); A61K 2239/38 (2023.05); A61K 2239/55 (2023.05); A61K 2239/57 (2023.05); C07K 16/22 (2013.01); C07K 16/30 (2013.01); C07K 2317/31 (2013.01); C07K 2317/33 (2013.01); C07K 2317/34 (2013.01); C07K 2317/51 (2013.01); C07K 2317/515 (2013.01); C07K 2317/56 (2013.01); C07K 2317/622 (2013.01); C07K 2317/73 (2013.01); C07K 2317/76 (2013.01); C07K 2317/77 (2013.01); C07K 2317/92 (2013.01); C07K 2317/94 (2013.01)] | 12 Claims |
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1. A bispecific antibody construct comprising a first binding domain which binds an epitope of human Delta-like Ligand 3 (DLL3) on the surface of a target cell within the amino acid sequence of SEQ ID NO: 269 and a second binding domain which binds human CD3 on the surface of a T cell, wherein the first binding domain comprises a VH region comprising CDR-H1, CDR-H2 and CDR-H3 and a VL region comprising CDR-L1, CDR-L2 and CDR-L3 selected from the group consisting of:
a) CDR-H1 comprising the amino acid sequence of SEQ ID NO: 171, CDR-H2 comprising the amino acid sequence of SEQ ID NO: 172, CDR-H3 comprising the amino acid sequence of SEQ ID NO: 173, CDR-L1 comprising the amino acid sequence of SEQ ID NO: 174, CDR-L2 comprising the amino acid sequence of SEQ ID NO: 175 and CDR-L3 comprising the amino acid sequence of SEQ ID NO: 176;
b) CDR-H1 comprising the amino acid sequence of SEQ ID NO: 181, CDR-H2 comprising the amino acid sequence of SEQ ID NO: 182, CDR-H3 comprising the amino acid sequence of SEQ ID NO: 183, CDR-L1 comprising the amino acid sequence of SEQ ID NO: 184, CDR-L2 comprising the amino acid sequence of SEQ ID NO: 185 and CDR-L3 comprising the amino acid sequence of SEQ ID NO: 186;
c) CDR-H1 comprising the amino acid sequence of SEQ ID NO: 191, CDR-H2 comprising the amino acid sequence of SEQ ID NO: 192, CDR-H3 comprising the amino acid sequence of SEQ ID NO: 193, CDR-L1 comprising the amino acid sequence of SEQ ID NO: 194, CDR-L2 comprising the amino acid sequence of SEQ ID NO: 195 and CDR-L3 comprising the amino acid sequence of SEQ ID NO: 196; and
d) CDR-H1 comprising the amino acid sequence of SEQ ID NO: 201, CDR-H2 comprising the amino acid sequence of SEQ ID NO: 202, CDR-H3 comprising the amino acid sequence of SEQ ID NO: 203, CDR-L1 comprising the amino acid sequence of SEQ ID NO: 204, CDR-L2 comprising the amino acid sequence of SEQ ID NO: 205 and CDR-L3 comprising the amino acid sequence of SEQ ID NO: 206.
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