Rashmi K. Murthy, MD, MBE
Central nervous system (CNS) metastases is a prevalent issue for patients with HER2-positive breast cancer, as approximately 50% of patients will experience them, according to Rashmi K. Murthy, MD, MBE. However, a novel agent has been in development to pass the blood-brain barrier and holds promise to potentially improve outcomes for this patient population.1,2
, Murthy, an assistant professor in the Department of Breast Medical Oncology, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, discusses the role of tucatinib in CNS metastases for patients with HER2-positive breast cancer.
OncLive: Can you give an overview of tucatinib and the HER2CLIMB trial?
: Tucatinib is a molecule that is exciting for the HER2 field. One of the challenges in the treatment of HER2-positive breast cancer is the frequent development of brain metastases, which can occur in up to 50% of patients. Tucatinib in combination has shown some early signs of activity in the CNS in addition to systemically.2,3
It is an oral HER2-specific tyrosine kinase inhibitor that is well tolerated. Because it blocks only HER2, there are fewer off-target effects, such as rash and diarrhea, which are common with some of the other tyrosine kinase inhibitors.1
It is currently being evaluated in a randomized clinical trial with capecitabine and trastuzumab.
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