Recent advances in the HER2 targeted therapy of gastric cancer

Tasuku Matsuoka1, Masakazu Yashiro1

  • 1Tasuku Matsuoka, Masakazu Yashiro, Department of Surgical Oncology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan.

Insights

Human epidermal growth factor receptor 2 (HER2)-targeted therapies improve outcomes for metastatic gastric cancer. However, resistance develops, prompting research into new combination treatments to enhance efficacy.

Area of Science:

  • Oncology
  • Molecular Targeted Therapy
  • Gastrointestinal Cancer Research

Background:

  • Molecular targeted therapies, specifically targeting human epidermal growth factor receptor 2 (HER2), represent a significant advancement in gastric cancer treatment.
  • Trastuzumab, a HER2-targeted therapy used with chemotherapy, has shown benefits in response rates, time to progression, and overall survival for metastatic HER2-positive gastric cancer patients.

Purpose of the Study:

  • To review the current clinical applications of agents targeting HER2 in gastric cancer.
  • To discuss ongoing clinical trials investigating HER2-targeted agents in combination therapies for gastric cancer.

Main Methods:

  • Literature review of clinical applications and ongoing trials of HER2-targeted agents in gastric cancer.
  • Analysis of treatment outcomes, including response rates, progression, and survival, associated with HER2-targeted therapies.

Main Results:

  • HER2-targeted therapies, such as trastuzumab, have improved outcomes in metastatic HER2-positive gastric cancer.
  • Acquired resistance to trastuzumab is a significant challenge, similar to its occurrence in breast cancer.

Conclusions:

  • Despite resistance, HER2-targeted agents remain crucial in gastric cancer therapy.
  • Ongoing research focuses on novel combination strategies, including cytotoxic agents and other monoclonal antibodies, to overcome resistance and improve treatment efficacy.

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