NCI Drug Dictionary
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labetuzumab-SN-38 immunoconjugate IMMU-130
An antibody-drug conjugate (ADC) containing labetuzumab, a mildly reduced, anti-CEACAM5 humanized monoclonal antibody, conjugated to the potent topoisomerase I inhibitor SN-38, with antineoplastic activity. The monoclonal antibody moiety of antibody-drug conjugate IMMU-130 selectively binds to carcinoembryonic cell adhesion molecule 5 (CEACAM5), which is abundantly expressed on the surface of a majority of solid tumors. Upon internalization and proteolytic cleavage, SN-38, the active metabolite of irinotecan, inhibits the activity of topoisomerase I in the tumor cells, eventually inhibiting both DNA replication and transcription and leading to tumor cell apoptosis. Check for active clinical trials or closed clinical trials using this agent. (NCI Thesaurus)