A Randomised, Open-Label, Phase III Study of Saruparib (AZD5305) Plus Camizestrant or Plus Endocrine Therapy, Compared With Physician's Choice CDK4/6 Inhibitor Plus Endocrine Therapy or Plus Camizestrant for the First-Line Treatment of Patients With BRCA1, BRCA2, or PALB2 Mutations and Hormone Receptor Positive, HER2-Negative (IHC 0, 1+, 2+/ ISH Non-amplified) Advanced Breast Cancer (EvoPAR-Breast01)

Inclusion Criteria: * Adult females, pre/peri-menopausal and/or post-menopausal, and adult males * Histologically or cytologically documented diagnosis of HR-positive, HER2-negative breast cancer * Advanced breast cancer with either locally advanced disease not amenable to curative treatment or metastatic disease * ECOG performance status of 0 or 1 with no deterioration over the previous 2 weeks * FFPE tumour tissue from each participant * Documented germline tumour loss of function mutation in BRCA1, BRCA2, or PALB2 * Adequate organ and marrow function Exclusion Criteria: * Participants wi…