Locally Advanced or Metastatic Breast Cancer research hub

A Study to Evaluate the Efficacy and Safety of Giredestrant in Combination With Phesgo (Pertuzumab, Trastuzumab, and Hyaluronidase-zzxf) Versus Phesgo in Participants With Locally Advanced or Metastatic Breast Cancer (heredERA Breast Cancer)

This study looks at a new drug, Giredestrant, combined with an existing treatment called Phesgo, for advanced breast cancer. It aims to see if this new combination is safe and works better than Phesgo alone for people with specific types of breast cancer.