Lynparza's safety and tolerability in the OlympiA trial align with prior trials, showing no new safety signals or increased risk of myelodysplastic syndrome or acute myeloid leukaemia. Lynparza is approved for gBRCAm, HER2-negative high-risk early and metastatic breast cancer in the US, EU, Japan, and other countries. The trial is coordinated by the Breast International Group (BIG) in partnership with NRG Oncology, the US National Cancer Institute, Frontier Science & Technology Research Foundation, AstraZeneca, and MSD. Lynparza, a PARP inhibitor, targets DNA damage response in cells with BRCA mutations, leading to cancer cell death.