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ctDNA Test Guides Breast Care in Elderly

  • March 31, 2026

  • 2 min

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  • 1

    ctDNA can help identify eligibility for endocrine therapy in older women.

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    Study analyzed 43 patients aged 70 and older.

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    Persistent ctDNA indicates tumor progression after therapy.

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    Negative ctDNA suggests stability and low progression risk.

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    Testing can be done through routine blood draws from home.

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    ctDNA may personalize treatment and minimize invasive procedures.

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    Need for validation in larger trials before practice changes.

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    Immune-related features were found in progressing tumors.

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