Saruparib (AZD5305) Plus Camizestrant Compared With CDK4/6 Inhibitor Plus Endocrine Therapy or Plus Camizestrant in HR-Positive, HER2-Negative (IHC 0, 1+, 2+/ ISH Non-amplified), BRCA1, BRCA2, or PALB2m Advanced Breast Cancer

Description

Approximately 2,620 participants will be screened to achieve approximately 500 participants randomised to study intervention.

Participants will be randomised in a 2:2:1 ratio to one of the following intervention groups:

* Arm 1: saruparib (AZD5305) plus camizestrant
* Arm 2: Physician’s choice CDK4/6i plus physician’s choice ET
* Arm 3: Physician’s choice CDK4/6i plus camizestrant Treatment continues until BICR-confirmed disease progression, unacceptable toxicity occurs, or the participant withdraws consent.