Real‑World Data Confirms T‑DXd’s Efficacy and Manageable Safety Across all HER2 Expression Levels.
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T‑DM1 retains meaningful benefit in heavily pretreated, more complex real‑world populations, supporting its role as a standard HER2‑targeted option.
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Tucatinib provides durable HER2+ mBC treatment persistence and meaningful rwTTD post‑T‑DXd for many with brain mets, multiple prior lines.
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Signals suggest earlier use of T-DXd may improve patient outcomes.
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