1L, first-line; aBC, advanced breast cancer; AE, adverse event; BICR, blinded independent central review; BID, twice daily; BRCA, breast cancer gene; CI, confidence interval; CR, complete response; DOR, duration of response; eBC, early breast cancer; EORTC QLQ-C30, European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire Core 30; gBRCAm, germline BRCA mutation; GHS, global health status, HER2, human epidermal growth factor receptor 2; HR+, hormone receptor positive; HR, hazard ratio; HRQoL, health-related quality of life; IQR, interquartile range; mBC, metastatic breast cancer; mPFS, median progression-free survival; NCI CTCAE, National Cancer Institute’s Common Terminology Criteria for Adverse Events; ORR, objective response rate; OS, overall survival; PARPi, poly (ADP-ribose) polymerase inhibitor; PFS(2), progression-free survival (2); PR, partial response; QoL, quality of life; SmPC, Summary of Product Characteristics; TEAE, treatment-emergent adverse event; TNBC, triple-negative breast cancer; TTD, time to deterioration; TTR, time to response.