Durable responses in patients with HER2+ breast cancer and leptomeningeal metastases treated with trastuzumab deruxtecan

Abstract Leptomeningeal metastases (LM) are a devastating complication of HER2 + metastatic breast cancer (MBC), with no effective treatments. In a case series of 8 patients with heavily pretreated HER2 + MBC and progressing LM, all 8 patients (100%) derived clinical benefit from Trastuzumab deruxte...

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Bibliographic Details
Main Authors: Laura Alder, Dario Trapani, Claire Bradbury, Amanda E. D. Van Swearingen, Sara M. Tolaney, Mustafa Khasraw, Carey K. Anders, Christopher D. Lascola, Liangge Hsu, Nancy U. Lin, Sarah Sammons
Format: Article
Language:English
Published: Nature Portfolio 2023-03-01
Series:npj Breast Cancer
Online Access:https://doi.org/10.1038/s41523-023-00519-0
Description
Summary:Abstract Leptomeningeal metastases (LM) are a devastating complication of HER2 + metastatic breast cancer (MBC), with no effective treatments. In a case series of 8 patients with heavily pretreated HER2 + MBC and progressing LM, all 8 patients (100%) derived clinical benefit from Trastuzumab deruxtecan (TDXd), and 4 patients (50%) had an objective partial response based on formal neuroradiology MRI reads using the EORTC/RANO-LM Revised-Scorecard. T-DXd warrants further study in LM in HER2 + MBC and solid tumors where T-DXd may be active.
ISSN:2374-4677