Fortvita Biologics Inc. and Innovent Biologics (Suzhou) Co. Ltd. have jointly reported new antibody-drug conjugates (ADCs) comprising a bispecific antibody or antigen-binding fragments targeting V-set domain-containing T-cell activation inhibitor 1 (VTCN1, B7-H4) and tumor-associated calcium signal transducer 2 (TACSTD2; TROP2) linked to cytotoxic drug. They are described as potentially useful for the treatment of cancer.