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Opinion|Videos|July 16, 2026
Current Treatment Landscape in HR-Positive, HER2-Negative Advanced Breast Cancer
Author(s)Jason Mouabbi, MD, Seth Wander, MD, PhD
Dr. Jason Mouabbi and Dr. Seth Wander open the discussion by reviewing the evolving treatment landscape for patients with HR-positive, HER2-negative advanced breast cancer. Dr. Wander discusses the role of endocrine therapy combined with CDK4/6 inhibition as a foundational first-line treatment approach, while highlighting important patient-specific considerations such as endocrine sensitivity, prior therapy exposure, and the emergence of targeted treatment strategies. The experts discuss how advances in earlier-line therapy have improved outcomes for many patients while also contributing to an increasingly complex treatment landscape. Dr. Mouabbi emphasizes the significant impact of CDK4/6 inhibitors in transforming the management of HR-positive, HER2-negative advanced breast cancer and highlights the importance of optimizing endocrine-based treatment strategies as resistance mechanisms emerge. The discussion sets the foundation for exploring biomarker-driven approaches, including strategies aimed at addressing evolving endocrine resistance.
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Dr. Jason Mouabbi and Dr. Seth Wander open the discussion by reviewing the evolving treatment landscape for patients with HR-positive, HER2-negative advanced breast cancer. Dr. Wander discusses the role of endocrine therapy combined with CDK4/6 inhibition as a foundational first-line treatment approach, while highlighting important patient-specific considerations such as endocrine sensitivity, prior therapy exposure, and the emergence of targeted treatment strategies. The experts discuss how advances in earlier-line therapy have improved outcomes for many patients while also contributing to an increasingly complex treatment landscape. Dr. Mouabbi emphasizes the significant impact of CDK4/6 inhibitors in transforming the management of HR-positive, HER2-negative advanced breast cancer and highlights the importance of optimizing endocrine-based treatment strategies as resistance mechanisms emerge. The discussion sets the foundation for exploring biomarker-driven approaches, including strategies aimed at addressing evolving endocrine resistance.
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