Breast cancer recurrence: is the biology different the second time?

NCT ID NCT07275203

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at whether breast cancer's biology changes when it returns after treatment. Researchers will review medical records of 200 patients treated between 2015 and 2025. The goal is to see how often key markers differ between the first tumor and the recurrence, which could guide future treatment decisions.

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