AstraZeneca, Daiichi Sankyo Datopotamab deruxtecan application accepted in US for pretreated metastatic HR-positive, HER2-negative breast cancer
AstraZeneca and Daiichi Sankyo's Biologics License Application (BLA) for datopotamab deruxtecan (Dato-DXd) has been accepted in the US for the treatment of adult patients with unresectable or metastatic hormone receptor (HR)-positive, HER2-negative (IHC 0, IHC 1+ or IHC 2+/ISH-) breast cancer who have received prior systemic therapy for unresectable or metastatic disease. The Prescription Drug User Fee Act date, the US Food and Drug Administration (FDA) action date for its regulatory decision, is during the first quarter of 2025.
The BLA is based on results from the pivotal TROPION-Breast01 Phase III trial in which datopotamab deruxtecan demonstrated a statistically significant and clinically meaningful improvement for the dual primary endpoint of progression-free survival (PFS) compared to investigator’s choice of chemotherapy in patients with unresectable or metastatic HR-positive, HER2-negative breast cancer previously treated with endocrine-based therapy and at least one systemic therapy. For the dual primary endpoint of overall survival (OS), interim results numerically favoured datopotamab deruxtecan over chemotherapy but were not mature at the time of data cut-off. The trial is ongoing and OS will be assessed at future analyses.
The safety profile of datopotamab deruxtecan was consistent with that observed in other ongoing trials with no new safety concerns identified.
An additional BLA for datopotamab deruxtecan based on results from the pivotal TROPION-Lung01 Phase III trial is under review in the US for the treatment of adult patients with locally advanced or metastatic nonsquamous non-small cell lung cancer (NSCLC) who have received prior systemic therapy. Additional regulatory submissions for datopotamab deruxtecan in lung and breast cancer are underway globally.
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