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NCT01853748 - ATEMPT - Trastuzumab emtansine vs Paclitaxel + Trastuzumab & Breast Cancer / Mammacarcinoma (HER2+)

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Contents

The ATEMPT trial aimed to see if trastuzumab emtansine (T-DM1) had less toxicity than paclitaxel plus trastuzumab (TH). It also checked if it provided acceptable invasive disease-free survival (iDFS) for stage I Breast Cancer / Mammacarcinoma (HER2+) patients.

Primary outcome measures
To compare toxicities between Trastuzumab emtansine and Paclitaxel + Trastuzumab.

Conclusion
For stage I Breast Cancer / Mammacarcinoma (HER2+), one year of Trastuzumab emtansine showed excellent 3-year invasive disease-free survival (iDFS). However, it did not reduce clinically relevant toxicities (CRTs) compared to Paclitaxel + Trastuzumab.
Tolaney et…