Jiangsu Simcere Biologics Co. Ltd. has described bispecific antibody-drug conjugates (ADC) comprising a bispecific human antibody targeting hepatocyte growth factor receptor (HGFR; MET) and epidermal growth factor receptor (EGFR; HER1; erbB1), covalently linked to a camptothecin derivative through a linker reported to be useful for the treatment of cancer.