Duarte, CA, United States
Duarte, CA, United States

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Background: Pathologic complete response (pCR) to neoadjuvant chemotherapy (NCT) is considered a surrogate for improved survival. Platinum-containing NCT, particularly in patients with HER2+ and triple-negative breast cancers (TNBC) may increase pCR rates. Methods: Tumor characteristics, pCR rates (no invasive disease in breast and lymph nodes), toxicities, and survival in patients who received carboplatin, a taxane, and trastuzumab (HER2+ disease) between April 2009 and December 2011, were reviewed. Results: Thirty eight patients (39 tumors) completed a median of 4 cycles of NCT. Eighteen of 39 (46%) tumors were HER2+, 8/18 (44%) responded with pCR; 13/18 HER2+ tumors were HR+ (72%) and 4/13 (31%) had a pCR. Ten of 39 (26%) tumors were TNBC; 6/10 (60%) had a pCR. At a median of 25-months no recurrences were observed in patients with pCR. Conclusions: Prospective studies of anthracycline-free platinum-containing NCT are warranted in LABC patients with HER2+ and TNBC. © 2014 Elsevier Ltd.


Pathologic complete response (pCR) to neoadjuvant chemotherapy (NCT) is considered a surrogate for improved survival. Platinum-containing NCT, particularly in patients with HER2+ and triple-negative breast cancers (TNBC) may increase pCR rates.Tumor characteristics, pCR rates (no invasive disease in breast and lymph nodes), toxicities, and survival in patients who received carboplatin, a taxane, and trastuzumab (HER2+ disease) between April 2009 and December 2011, were reviewed.Thirty eight patients (39 tumors) completed a median of 4 cycles of NCT. Eighteen of 39 (46%) tumors were HER2+, 8/18 (44%) responded with pCR; 13/18 HER2+ tumors were HR+ (72%) and 4/13 (31%) had a pCR. Ten of 39 (26%) tumors were TNBC; 6/10 (60%) had a pCR. At a median of 25-months no recurrences were observed in patients with pCR.Prospective studies of anthracycline-free platinum-containing NCT are warranted in LABC patients with HER2+ and TNBC.

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