Kadcyla cut risk of disease recurrence vs. Herceptin in HER2-positive early breast cancer with residual disease after neoadjuvant treatment

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Genentech said the phase III KATHERINE study met its primary endpoint, showing Kadcyla (ado-trastuzumab emtansine) as a single agent significantly reduced the risk of disease recurrence or death (invasive disease-free survival) by 50 percent (HR=0.50, 95% CI 0.39-0.64, p<0.0001) compared to Herceptin (trastuzumab) as an adjuvant treatment in people with HER2-positive early breast cancer who have residual disease (pathological invasive residual disease in the breast and/or axillary nodes) present following neoadjuvant treatment.

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I write a weekly blog for Georgetown University’s Lombardi Comprehensive Cancer Center community. Here I share an updated version of a blog post I wrote in September 2024, now supplemented by some poems I have written over the years that inspired paintings by my wife Harriet Weiner, who is a much better artist than I am a poet or writer. 

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