Conference Coverage

VIDEO: Good responses with antibody-drug conjugate in third-line metastatic TNBC therapy



– Fully one-third of patients with heavily pretreated metastatic triple-negative breast cancer (TNBC) had a response to therapy with a novel antibody-drug conjugate called sacituzumab govitecan. The conjugate consists of the active metabolites of the topoisomerase I inhibitor irinotecan linked to a humanized monoclonal antibody target Trop-2, a cell-surface glycoprotein expressed in triple-negative breast cancers and most other epithelial malignancies.

Aditya Bardia, MD, from Massachusetts General Hospital in Boston, previously reported results of a phase 1/2 basket trial that resulted in sacituzumab govitecan receiving a breakthrough designation from the Food and Drug Administration.

In this video interview, he discusses the conjugate’s activity in the third-line or greater setting for patients with metastatic TNBC, with an overall response rate of 34%, including some complete responses according to independent reviewers, and describes planned clinical trials pitting the agent against standard-of-care single-drug therapies.

The trial was supported by Immunomedics. Dr. Bardia reported institutional funding from the company, but no other conflicts of interest.

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