NCI Drug Dictionary

The NCI Drug Dictionary contains technical definitions and synonyms for drugs/agents used to treat patients with cancer or conditions related to cancer. Each drug entry includes links to check for clinical trials listed in NCI's List of Cancer Clinical Trials.

anti-B7-H3 antibody DS-5573a
An antibody directed against the immunoregulatory protein B7-homologue 3 (B7-H3, CD276), with potential immunostimulating and antineoplastic activities. Upon intravenous administration, anti-B7-H3 antibody DS-5573a binds to the cell surface antigen B7-H3, thereby blocking B7-H3-mediated signaling. This abrogates the inhibitory effect on T-cell activation and may activate the immune system to exert a cytotoxic T-lymphocyte (CTL) response against B7-H3-expressing tumor cells. B7-H3, a type I transmembrane protein and a member of the B7 co-stimulatory protein superfamily, is overexpressed on certain tumor cell types and on various immune cells. It is a negative regulator of the T-cell activation and and its overexpression plays a key role in tumor cell invasion and metastasis. Check for active clinical trials using this agent. (NCI Thesaurus)

Code name:DS-5573a