Datroway Positive Data in Breast Cancer Patients

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AstraZeneca and Daiichi Sankyo say new data show that their antibody-drug conjugate Datroway (datopotamab deruxtecan) significantly improved survival outcomes for patients with metastatic triple-negative breast cancer who are not eligible for immunotherapy. Results from the Phase 3 TROPION-Breast02 trial also showed the therapy met its second co-primary endpoint of progression-free survival.

The drug is currently approved for treating hormone receptor–positive, HER2-negative breast cancer, and has also received accelerated approval for EGFR-mutated non-small cell lung cancer.

The companies characterized the trial results as “the only trial ever to show an overall survival benefit in the first-line treatment of patients with metastatic triple-negative breast cancer for whom immunotherapy is not an option. These results may mark an inflection point in the treatment of these patients, who urgently need better options.”

Datroway’s safety profile was consistent with previous studies, and detailed efficacy and safety data will be presented at an upcoming medical meeting, the companies say. Data will also be submitted to FDA and other regulatory agencies for a potential label expansion.

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