Human epidermal growth factor receptor 2 (HER2) in gastric cancer: a new therapeutic target
F De Vita1, F Giuliani, N Silvestris
1Division of Medical Oncology, F. Magrassi & A. Lanzara Department of Clinical and Experimental Medicine and Surgery, Second University of Naples School of Medicine, c/o II Policlinico, Via S. Pansini 5, Naples, Italy. fernandodevita@yahoo.it
Abstract:
Surgery is the only curative therapy for gastric cancer. In the metastatic setting the objective of treatment is to manage symptoms, improve quality of life and prolong survival, but current treatment options have limited efficacy and some of them exhibit unfavourable toxicity profiles. Fluoropyrimidine, taxanes and platinum-based regimens are used most frequently and offer a response rate of 30-50% with a median overall survival of =1 year. These discouraging data support the need for new therapeutic strategies based on targeted drugs. Trastuzumab, a monoclonal antibody against HER2, has shown survival benefits when given with chemotherapy in all setting of HER2-positive breast cancer patients. The ToGA trial, the first study evaluating the efficacy and safety of adding trastuzumab to chemotherapy in HER-2 positive advanced gastric cancer, showed a significant superiority of combination over chemotherapy alone. Based on these results trastuzumab combined with a cisplatin and fluoropyrimidine regimen appear the new reference treatment for HER-2 positive metastatic gastric cancer.
Insights
Adding trastuzumab to chemotherapy significantly improves survival for patients with HER2-positive advanced gastric cancer. This targeted therapy offers a new standard of care, improving outcomes beyond traditional chemotherapy.
Area of Science:
- Oncology
- Medical Research
Background:
- Gastric cancer treatment, especially in the metastatic setting, faces challenges with limited efficacy and toxicity of current options.
- Existing chemotherapy regimens (fluoropyrimidine, taxanes, platinum) show modest response rates (30-50%) and median survival of about one year.
- There is a critical need for novel therapeutic strategies, particularly targeted drugs, to improve patient outcomes.
Purpose of the Study:
- To evaluate the efficacy and safety of adding trastuzumab to standard chemotherapy in patients with HER2-positive advanced gastric cancer.
- To establish a new reference treatment for HER2-positive metastatic gastric cancer.
Main Methods:
- The study involved evaluating trastuzumab in combination with chemotherapy (cisplatin and fluoropyrimidine).
- The ToGA trial was the first to assess this combination in HER2-positive advanced gastric cancer patients.
- Efficacy and safety data were collected and analyzed.
Main Results:
- The combination of trastuzumab with chemotherapy demonstrated significant superiority over chemotherapy alone.
- Trastuzumab, a monoclonal antibody targeting HER2, showed survival benefits.
- The treatment regimen was found to be a new reference treatment for HER2-positive metastatic gastric cancer.
Conclusions:
- Adding trastuzumab to cisplatin and fluoropyrimidine chemotherapy is a superior treatment strategy for HER2-positive advanced gastric cancer.
- Trastuzumab represents a significant advancement in targeted therapy for this patient population.
- This combination therapy offers improved survival and a new standard of care.
More Related Videos
08:28Validated Immunochemical Assay for Comprehensive Determination of the Human Epidermal Growth Factor Receptor 2 Released from and Bound to Cells
Published on: May 9, 2025
10:28Gene Regulation and Targeted Therapy in Gastric Cancer Peritoneal Metastasis: Radiological Findings from Dual Energy CT and PET/CT
Published on: January 22, 2018
Related Concept Videos
Mitogens and the Cell Cycle
Targeted Cancer Therapies
There are several types of targeted therapies against specific...
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase
Gastritis II: Pathophysiology
