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Trastuzumab

Ian E Smith1, Susan G Cross

  • 1Breast Unit, Department of Medicine, The Royal Marsden Hospital, Fulham Road,London, SW3 6JJ, UK. ian.smith@rmh.nthames.nhs.uk.

Women'S Health (London, England)
|October 7, 2009
PubMed

Insights

Human epidermal growth factor receptor 2 (HER2) is overexpressed in aggressive breast cancers. Trastuzumab, a targeted therapy, shows effectiveness in treating metastatic, neoadjuvant, and adjuvant breast cancer.

Area of Science:

  • Oncology
  • Molecular Biology
  • Pharmacology

Background:

  • Breast cancer exhibits significant heterogeneity with diverse clinical and biological subtypes.
  • Human epidermal growth factor receptor 2 (HER2) overexpression occurs in about 20% of breast cancers, often linked to gene amplification.
  • HER2 overexpression typically signifies a more aggressive tumor type and a poorer prognosis.

Purpose of the Study:

  • To review the role and efficacy of trastuzumab in breast cancer treatment.
  • To highlight trastuzumab's targeted action against HER2-overexpressing breast cancer cells.

Main Methods:

  • Review of clinical trials and published data on trastuzumab therapy.
  • Analysis of trastuzumab's effectiveness as a single agent and in combination therapies.
  • Evaluation of trastuzumab's application in metastatic, neoadjuvant, and adjuvant settings.

Main Results:

  • Trastuzumab is an effective humanized monoclonal antibody targeting HER2.
  • Demonstrated activity in metastatic breast cancer, both alone and with chemotherapy.
  • Recent studies show benefits in neoadjuvant and adjuvant breast cancer treatment.

Conclusions:

  • Trastuzumab is a key therapeutic agent for HER2-positive breast cancer.
  • Its efficacy spans various stages of breast cancer, improving patient outcomes.
  • Targeted therapy against HER2 represents a significant advancement in breast cancer treatment.

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