• Welcome

    Welcome to the HER2 testing site - a resource for healthcare professionals outside of the United States containing information about HER2 testing in breast and gastric cancer.

    To access a country-specific site for HER2 testing in gastric cancer only, please select a country from the drop-down menu below:

  • If your country is not listed or to access information on HER2 testing in breast cancer, please visit the international HER2 testing website for breast and gastric cancer by clicking on