| abstract |
PROBLEM TO BE SOLVED: To provide an antibody or an antigen-binding fragment thereof which specifically binds to ErbB3, and use thereof. An antibody or an antigen-binding fragment thereof that specifically binds to ErbB3, comprising a heavy chain complementarity determining region (CDR-H) and a light chain complementarity determining region (CDR-L), wherein a specific amino acid An antibody or an antigen-binding fragment thereof containing CDR-L3 having a sequence, and a pharmaceutical composition for preventing or treating a disease associated with activation or overproduction of ErbB3 protein, comprising the antibody or the antigen-binding fragment thereof. [Selection diagram] None |