Breast Cancer

MONARCH 3: Adding Abemaciclib to an Aromatase Inhibitor Improves Outcomes in Metastatic Breast Cancer

Phoebe Starr

December 2017, Vol 7, No 12 - Breast Cancer, ESMO Highlights

The addition of the cyclin-dependent kinase (CDK)4/CDK6 inhibitor abemaciclib (Verzenio) to an aromatase inhibitor improved progression-free survival (PFS) over aromatase inhibitor monotherapy in women with hormone receptor (HR)-positive, HER2-­negative advanced breast cancer, according to an interim analysis of the phase 3 MONARCH 3 clinical trial presented at the 2017 European Society for Medical Oncology (ESMO) Congress. The study was also re­cently published in the Journal of Clinical Oncology. [ Read More ]

Kisqali (Ribociclib): Second CDK4/CDK6 Inhibitor Approved for Postmenopausal Women with HR-Positive, HER2-Negative Advanced Breast Cancer

Lisa A. Raedler, PhD, RPh

September 2017, Vol 7, No 9 - Breast Cancer, Drug Update

Breast cancer is one of the most common cancer diagnoses in the United States. The National Cancer Institute estimates that 252,710 American women will be diagnosed with breast cancer and 40,610 will die from the disease in 2017. For the majority (62%) of women with breast cancer, the disease is confined to the breast, and the 5-year survival approaches 100%. However, for women with metastatic disease, the likelihood of survival at 5 years drops to 27%. [ Read More ]

Excellent Responses to Atezolizumab in Small Subset of Women with Triple-Negative Breast Cancer

Phoebe Starr

May 2017, Vol 7, No 5 - AACR 2017 Highlights, Breast Cancer

Washington, DC—Preliminary data show excellent and durable responses to atezolizumab (Tecentriq) in 10% of women with triple-negative breast cancer, one of the most aggressive and difficult-to-treat cancers. Of the responders to atezolizumab, 100% were alive at 1 year compared with only 38% of nonresponders. The trick will be to identify which women will respond to immune checkpoint inhibitor therapy. Thus far, no biomarkers for response have been identified. [ Read More ]

Abemaciclib, a CDK4/CDK6 Inhibitor, Shows Promise in Early-Stage Breast Cancer

Phoebe Starr

March 2017, Vol 7, No 3 - Breast Cancer

Neoadjuvant therapy with the investigational CDK4/CDK6 inhibitor, abemaciclib, alone or in combination with anastrozole (Arimidex) showed promising activity in postmenopausal hormone receptor (HR)-positive, HER2-negative breast cancer enrolled in the phase 2 NeoMONARCH study. Correlative tissue studies demonstrated that abemaciclib inhibited cell-cycle proliferation and activated the immune system, supporting its anticancer activity. [ Read More ]

Benefit of Extended Adjuvant Aromatase Inhibition in Breast Cancer Questionable

Phoebe Starr

March 2017, Vol 7, No 3 - Breast Cancer

Extended adjuvant endocrine therapy beyond 5 years with an aromatase inhibitor (AI) failed to improve disease-free survival (DFS) in patients with hormone receptor (HR)-positive breast cancer who were enrolled in the 3 large National Surgical Adjuvant Breast and Bowel Project (NSABP) B-52, IDEAL, and DATA studies, which were presented at the 2016 San Antonio Breast Cancer Symposium. [ Read More ]