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CDH1: Options for Cancer Treatment

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Cancer Treatment Options for People with Inherited CDH1 Mutations

Surgical decisions for women diagnosed with breast cancer

Because of the risk for a second breast cancer diagnosis, women who are diagnosed with breast cancer who test positive for an inherited mutation in CDH1 may choose bilateral mastectomy rather than lumpectomy and radiation. Mutation carriers who undergo mastectomy are less likely to develop a second breast cancer. 

Women diagnosed with cancer who have not had a bilateral mastectomy should continue breast cancer screening as recommended by the guidelines. 

Targeted therapies and other treatment options

Treatment options for people with a mutation depend on the type and of cancer. Currently there are no FDA-approved targeted therapies or guidelines developed specifically for treating cancer in people with a mutation. To learn more about standard of care treatment options for specific types of cancer, visit our section on Cancer Treatment by Cancer Type. People with cancer should talk with their doctor about testing to look for changes in the cancer which may affect their treatment options. 

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Find Compassionate Support

Making treatment decisions may feel overwhelming or isolating. You don't have to face this alone. Find support from people who have been there and understand. 

 

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Get Help Locating Resources

Connect with a trained volunteer who can help you navigate the decisions you face about hereditary cancer or cancer risk. 

 

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Learn More About Cancer Treatment

Visit our section with in-depth information on screening, prevention or treatment of different types of cancer.

 

 

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Last updated September 21, 2026