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.

ESMO Open
|September 5, 2021
PubMed

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.