Gene tests for all women with breast cancer could save money — and lives

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Doing genetic tests on all women with breast cancer, as compared with the typical practice of just testing those with a family history of the disease, is worth the extra cost, according to a study published online Oct. 3, 2019, by JAMA Oncology. The study authors say their findings should prompt the expansion of genetic testing to all women diagnosed with breast cancer. It's clear that testing breast cancer patients for genetic variants that raise breast cancer risk (such as BRCA1, BRCA2, and PALB2) would enable doctors to identify more women who carry these variants and who might benefit from preventive strategies. But researchers wondered whether doing so would be too costly. To answer that question, they used a computer model to analyze data from more than 11,000 women. They found that not only would the cost of testing all American women with breast cancer be balanced out by later savings on health care services, but also that just one year of testing could prevent an estimated 9,700 new cases of breast and ovarian cancer and 2,400 deaths.

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