The purpose of this study is to evaluate the effectiveness of abemaciclib plus trastuzumab with or without fulvestrant versus trastuzumab plus physicians choice standard of care chemotherapy in women with hormone receptor positive (HR+), human epidermal growth factor receptor 2 positive (HER2+) locally advanced or metastatic breast cancer after prior exposure to at least two HER2-directed therapies for advanced disease.
Administered Orally
Administered IV
Administered IM
Standard-of-care single-agent chemotherapy of physician's choice administered according to product label
Buenos Aires, Argentina
CABA, Argentina
Córdoba, Argentina
Córdoba, Argentina
La Rioja, Argentina
Rosario, Argentina
Rosario, Argentina
San Miguel de Tucumán, Argentina
Viedma, Argentina