A Study to Evaluate the Effect of GDC-4198 Alone and in Combination With Giredestrant Versus Abemaciclib and Giredestrant in Participants With Locally Advanced or Metastatic Estrogen Receptor-Positive (ER+), Human Epidermal Growth Factor Receptor-Negative (HER2-) Breast Cancer
Conditions
Interventions
- DRUG: GDC-4198
- DRUG: Giredestrant
- DRUG: Abemaciclib
Sponsor
Genentech, Inc.
Collaborators