Novel Antibody-Drug Conjugate Targets Triple-Negative Breast Cancer


“The antibody-drug conjugate sacituzumab govitecan (IMMU-132) produced high objective response rates, many of them quite durable, in a multicenter study of heavily pretreated patients with metastatic triple-negative breast cancer, presented at the 2016 San Antonio Breast Cancer Symposium.

“Trop-2 is a calcium signal transducer that drives tumor growth and has shown promise as a novel therapeutic target in triple-negative breast cancer, since the majority of these tumors express Trop-2. Sacituzumab govitecan targets Trop-2 and selectively delivers high doses of SN-38, the active metabolite of irinotecan that is 1,000 times more active than the parent compound. In addition to drug delivery, sacituzumab govitecan potentially also activates antibody-dependent cell-mediated cytotoxicity.”

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