HER2-Orientated Therapy in Early and Metastatic Breast Cancer

Severine Iborra1, Elmar Stickeler1

  • 1Department of Gynecology and Obstetrics, University Medical Center Aachen, Aachen, Germany.

Insights

Personalized medicine transforms breast cancer (BC) therapy, especially for HER2-positive cases. Targeted therapies like trastuzumab improve survival, with ongoing research exploring new markers for treatment de-escalation.

Area of Science:

  • Oncology
  • Molecular Biology
  • Pharmacology

Background:

  • Advances in molecular oncology and signaling pathways have revolutionized breast cancer (BC) treatment.
  • Personalized medicine, tailored to individual disease characteristics, is increasingly central to BC therapy management.

Purpose of the Study:

  • To review the impact of targeted therapies on HER2-positive early or metastatic breast cancer.
  • To discuss the role of neoadjuvant chemotherapy and the search for novel surrogate markers in BC treatment.

Main Methods:

  • Review of established and emerging targeted therapies for HER2-positive BC.
  • Analysis of the role of neoadjuvant chemotherapy in operable BC.
  • Exploration of research into surrogate markers for therapy response.

Main Results:

  • Anti-HER2 biologicals (trastuzumab, pertuzumab, T-DM1) have enabled personalized treatment and improved survival for HER2-positive BC patients.
  • Neoadjuvant chemotherapy is a standard option for operable BC requiring postoperative treatment.
  • Research is identifying new markers to guide neoadjuvant therapy and potentially de-escalate conventional treatments.

Conclusions:

  • Targeted therapies have significantly advanced the treatment of HER2-positive breast cancer.
  • Future research aims to refine neoadjuvant strategies through personalized marker identification, potentially leading to treatment de-escalation.

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