Datopotamab deruxtecan BLA is accepted in the US for patients with previously treated metastatic HR-positive, HER2-negative breast cancer

The Prescription Drug User Fee Act date, the 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.

Datopotamab deruxtecan is a specifically engineered TROP2-directed DXd antibody drug conjugate (ADC) discovered by Daiichi Sankyo and being jointly developed by AstraZeneca and Daiichi Sankyo.

Susan Galbraith, Executive Vice President, Oncology R&D, AstraZeneca, said: “Despite marked progress in the treatment of HR-positive, HER2-negative breast cancer, most patients with advanced disease develop endocrine resistance and face the prospect of one or several lines of chemotherapy. If approved, datopotamab deruxtecan has the potential to provide these patients an efficacious and better tolerated alternative to conventional chemotherapy.”

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.