New study maps hidden mutations in advanced breast cancer

NCT ID NCT06417801

First seen Nov 01, 2025 · Last updated May 05, 2026 · Updated 25 times

Summary

This study looks at how certain genetic changes (ESR1 mutations) appear in the blood of people with metastatic breast cancer. Researchers will compare patients who have had prior treatments with those who haven't. The goal is to better understand why some cancers become resistant to therapy, which may guide future treatment decisions.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Research Site

    RECRUITING

    São Paulo, 04513-020, Brazil

Conditions

Explore the condition pages connected to this study.