AstraZeneca and Merck & Co. (NYSE: MRK), known as MSD outside the United States and Canada, today announced that a supplemental New Drug Application (sNDA) for LYNPARZAhas been accepted and granted priority review by the U.S. Food and Drug Administration (FDA) for the adjuvant treatment of patients with BRCA-mutated (BRCAm), human epidermal growth factor receptor 2 (HER2)-negative high-risk early breast cancer who have already been treated with chemotherapy either before or after surgery. The FDA has set a Prescription Drug User Fee Act (PDUFA), or target action, date during the first quarter of 2022.
Breast cancer is now the most diagnosed cancer worldwide, with an estimated 2.3 million patients diagnosed in 2020. Nearly 91% of all breast cancer patients are diagnosed at an early stage of disease, and germline BRCA mutations are found in approximately 5% of patients.
The sNDA was based on results from the Phase 3 OlympiA trial presented during the 2021 American Society of Clinical Oncology (ASCO) Annual Meeting and simultaneously published in The New England Journal of Medicine.
These results showedLYNPARZA demonstrated a statistically significant and clinically meaningful improvement in invasive disease-free survival (iDFS), reducing the risk of invasive breast cancer recurrence, second cancers or death by 42% versus placebo (HR=0.58 [99.5% CI, 0.41-0.82]; p<0.0001).
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