Saint Pierre Des Corps

This research aims to observe patients in France with HER2-negative early breast cancer who are treated with olaparib, a medication chosen by their doctors. The study focuses on understanding how often patients complete the full course of olaparib treatment and gathers information on related genetic factors and medical history. It is a national, multicenter, prospective observational study without experimental treatment assignment. Participants in this study receive adjuvant olaparib treatment as part of their usual care under their physicians discretion. The study does not assign treatments but follows patients who start olaparib, tracking their treatment progress for up to 18 months after inclusion. There are no additional interventions or placebo groups. Throughout the study, researchers collect data on treatment completion rates, types of BRCA mutations, variant types, medical history, and the time until olaparib treatment stops. Participation involves observational follow-up, with no extra treatment visits beyond routine care. The overall participation lasts 18 months after a patients enrollment, focusing on real-world treatment experiences and outcomes.