Don Berry: In NeoALTTO & ALTTO Trials, Neoadjuvant Response Predicts Adjuvant

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An article in the June 6 issue of The Cancer Letter described plenary presentations at ASCO 2014. One presentation was the adjuvant breast cancer clinical trial ALTTO in HER2-positive disease, which “was chosen [for the plenary session] because it addressed the reliability of pathological complete response as a surrogate for patient benefit.” The article and much ASCO and post-ASCO rhetoric in the breast cancer community focused on the conclusion that ALTTO failed to show a statistically significant benefit in disease-free survival (DFS) for combination lapatinib/trastuzumab in comparison with trastuzumab, both on a backbone of chemotherapy. This was despite a statistically significant benefit in pathological complete response (pCR) in NeoALTTO, the neoadjuvant version of ALTTO.

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Donald A. Berry
Professor of biostatistics, MD Anderson Cancer Center

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Just consider for a minute if this was the first year of running your lab, if you were on the job market as a physician or scientist right now, if you were a resident contemplating a career in cancer research after fellowship, if you were a graduate student or postdoc, if you were an undergraduate or a technician who was looking toward graduate school.
Donald A. Berry
Professor of biostatistics, MD Anderson Cancer Center

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