Regulatory approval

Published by the Food and Drug Administration. Approved

ENHERTU is a HER2-directed antibody and topoisomerase inhibitor conjugate indicated for the treatment of adult patients with unresectable or metastatic HER2-low (IHC 1+ or IHC 2+/ISH-) breast cancer, as determined by an FDA-approved test, who have received a prior chemotherapy in the metastatic setting or developed disease recurrence during or within 6 months of completing adjuvant chemotherapy.

This is written in the approval document.

Citation

Daiichi Sankyo, Inc. Enhertu (trastuzumab deruxtecan) [package insert]. U.S. Food and Drug Administration website. https://www.accessdata.fda.gov/drugsatfda_docs/label/2025/761139s038s042lbl.pdf. Revised December 2025. Accessed December 24, 2025.

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Therapeutic response

Precision oncology relationships for therapeutic response derived from this regulatory approval.

Organizations Biomarkers Cancer types Therapies
FDA (1) HER2-low Invasive Breast Carcinoma Trastuzumab deruxtecan