HER2Know Logo
HER2Know Logo
  • Tumor Types
    • Welcome to the new, updated HER2Know

      We have expanded our resource library so you can now explore content on HER2 in tumors beyond breast.

      Looking for the original HER2Know breast cancer resources?

      • Breast Cancer
        • Breast Cancer Overview
        • Breast Cancer Resources
        • IHC Atlas
        • Pathologists' Perspectives
          • Clinical Case Reviews
          • Spotlight Series
        • Knowledge Check
      • Gastric Cancer
        • Gastric Cancer Overview
        • Gastric Cancer Resources
        • Gastric Cancer IHC Atlas
      • Other Solid Tumors
        • Other Solid Tumors Overview
        • Other Solid Tumors Resources
        • Other Solid Tumors IHC Atlas
       
  • Resources
  • IHC Atlas
  • Contributors
  • In the Know
  • Subscribe
  • TUMOR TYPES
  • Breast Cancer
    • Breast Cancer Overview
    • Breast Cancer Resources
    • IHC Atlas
    • Pathologists' perspectives
    • Clinical Case Reviews
    • Spotlight Series
    • Knowledge Check
  • Gastric Cancer
    • Gastric Cancer Overview
    • Gastric Cancer Resources
    • Gastric Cancer IHC Atlas
  • Other Solid Tumors
    • Other Solid Tumors Overview
    • Other Solid Tumors Resources
    • Other Solid Tumors IHC Atlas
  • Resources
  • IHC Atlas
  • Contributors
  • In the Know
  • Subscribe
  • Subscribe

Subscribe to emails

Stay up to date on HER2 IHC.

Sign up for the latest news, resources and educational materials including clinical cases on HER2 IHC testing for breast and other tumor types, delivered straight to your inbox.

Required*

If you no longer want to receive health-related materials, call 1-800-236-9933. Please visit www.azprivacy.astrazeneca.com to review our Privacy Notice. AstraZeneca will not knowingly collect, use, or disclose personally identifiable information from a minor under the age of 18. You must be 18 or older and a resident of the United States to subscribe.

Her2know Logo

Quick Links

  • Subscribe
  • Resources
  • Contributors

 

Breast Cancer Links

  • Breast Cancer Overview
  • Breast Cancer Resources
  • IHC Atlas
  • Clinical Case Reviews
  • Spotlight Series
  • Knowledge Check

 

Gastric Cancer Links

  • Gastric Cancer Overview
  • Gastric Cancer Resources

About Us

  • Contact Us
  • Request Medical Follow-Up
  • AstraZeneca
  • AZ Medical
  • Daiichi Sankyo Company
  • DSI Medical
  • Your Privacy Choices

Legal

  • Privacy Notice
  • Cookie Preferences
  • Legal Notices & Terms of Use
  • Consumer Health Data Privacy Notice
.
Daiichi-Sankyo - AstraZeneca Footer

©2025 Daiichi Sankyo, Inc. and AstraZeneca
PP-US-8201a-2260, US-97546 02/25

©2025 Daiichi Sankyo, Inc. and AstraZeneca.
PP-US-8201a-2276, US-98135 02/25

HER2Know Logo

Request an AstraZeneca Medical Affairs Representative Follow-Up

Welcome to HER2Know

This website is intended to help healthcare professionals practicing in the United States find and access scientifically balanced, evidence-based, and peer-led information and professional resources in support of HER2 IHC evaluation. The dissemination of this information may be subject to different medical and regulatory requirements in other countries. This information is provided for educational purposes only. It is not intended for use in the diagnosis or treatment of individual patients. Are you a healthcare professional practicing in the United States?

I am a Daiichi Sankyo Company or AstraZeneca authorized person

What is a Daiichi Sankyo Company or AstraZeneca authorized person?

This website is only intended for healthcare professionals practicing in the United States and authorized Daiichi Sankyo Company or AstraZeneca personnel. US Headquarters personnel and US Field Medical personnel are authorized to browse and search the database for their own background knowledge and insight. This website is not intended for use by US Field Sales personnel. None of the content of this site should be directly linked or distributed without approval.

Self Certification Buttons
No, take me to AstraZeneca.com Self Certification Buttons