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How we treat HER2-positive brain metastases
E Stavrou1, E P Winer1, N U Lin1
1Department of Medical Oncology, Dana Farber Cancer Institute, Boston, USA.
Abstract:
Overexpression of the human epidermal growth factor 2 (HER2)/neu glycoprotein receptor in breast cancer is associated with increased risk of brain metastases, especially in patients with advanced disease. Improvements in the treatment of HER2-positive breast cancer has led to prolonged survival of patients with advanced disease, but the prevention and management of central nervous system metastases still poses unique clinical challenges given the associated morbidity and mortality of this site of disease. HER2-positive brain metastases are treated with surgery, radiation (stereotactic radiosurgery or whole brain radiotherapy), and systemic therapies, and are best managed by an experienced multidisciplinary team. The present article aims to provide an overview to our approach to treatment of HER2-positive brain metastases, including a review of agents with central nervous system activity, as well as management suggestions for several nuanced clinical scenarios.
Insights
Overexpression of the human epidermal growth factor 2 (HER2)/neu receptor in breast cancer increases brain metastasis risk. This review details managing HER2-positive brain metastases with current therapies and clinical strategies.
Area of Science:
- Oncology
- Neurology
- Medical Research
Background:
- HER2/neu receptor overexpression in breast cancer correlates with higher brain metastasis risk, particularly in advanced stages.
- Advances in HER2-positive breast cancer treatment improve survival but brain metastases present unique management challenges.
- Central nervous system metastases significantly increase morbidity and mortality in patients with HER2-positive breast cancer.
Purpose of the Study:
- To provide an overview of the treatment approach for HER2-positive brain metastases.
- To review systemic agents with demonstrated central nervous system activity for these metastases.
- To offer management suggestions for complex clinical scenarios involving HER2-positive brain metastases.
Main Methods:
- Literature review focusing on HER2-positive breast cancer and central nervous system metastases.
- Analysis of current treatment modalities including surgery, radiation, and systemic therapies.
- Synthesis of clinical strategies for managing nuanced cases of brain metastases.
Main Results:
- HER2-positive brain metastases require a multidisciplinary team approach for optimal management.
- Several systemic agents show promise for treating brain metastases due to HER2-positive status.
- Specific clinical scenarios necessitate tailored treatment strategies.
Conclusions:
- Effective management of HER2-positive brain metastases involves a combination of local therapies and systemic agents with CNS penetration.
- Continued research into novel agents and treatment strategies is crucial for improving outcomes.
- Multidisciplinary collaboration is essential for addressing the complexities of HER2-positive brain metastases.
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