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Efficacy and safety of concurrent trastuzumab plus weekly paclitaxel-FEC as primary therapy for HER2-positive breast cancer in everyday clinical practice.

Abstract：

:One of the most efficacious primary therapies in HER2-positive breast cancer was published by the M.D. Anderson group in 2005. This randomized trial evaluated the addition of trastuzumab to a taxane-anthracycline based chemotherapy. Despite largely significant differences in pathological complete response (pCR) in the trastuzumab group (65 vs. 26 %) this regimen did not become a common standard due to toxicity concerns and its premature closure with a small sample size. In order to evaluate the efficacy and safety of this regimen in an off-trial setting we conducted a prospectively monitorized series of consecutive patients with early or locally advanced Her-2 positive breast cancer following the same treatment strategy. Stage II-IIIC HER2-positive breast cancer patients, including inflammatory disease, were treated with weekly-trastuzumab for 24 weeks administered concurrently with all primary chemotherapy containing paclitaxel (80 mg/m(2)) for 12 weeks and 4 cycles of FEC-75 (fluorouracil 500 mg/m(2), epirubicine 75 mg/m(2), and cyclophosphamide 500 mg/m(2)) followed by surgery. The objectives were efficacy, in terms of pCR in both the breast and lymph nodes, and safety, with close cardiac monitoring during and after treatment. From August 2004 to February 2009, 83 patients were included. Most patients (73.5 %) had node involvement and 13.2 % had inflammatory disease. Fifty-one patients (61.4 %) achieved a pCR in breast and axilla (95 % CI 50-72 %). HR-negative tumors were associated with higher pCR rate than HR-positive tumors (77 vs. 48 %, P = 0.006). At a median follow-up of 50.2 months no patient developed symptomatic cardiac failure, and 9 patients (10.8 %) presented a transient asymptomatic decrease in left ventricular ejection fraction. Primary therapy with concurrent trastuzumab plus paclitaxel-FEC for HER2-positive breast cancer in everyday practice is highly effective and safe confirming the results observed in a randomized trial stopped prematurely.

journal_name

Breast Cancer Res Treat

journal_title

Breast cancer research and treatment

authors

Pernas S,Gil-Gil M,de Olza MO,Gumà A,Climent F,Petit A,Pla MJ,García-Tejedor A,López-Ojeda A,Falo C,Fernandez-Otega A,Mesia C,Pérez-Martin FJ,Urruticoechea A,Germà JR

doi

10.1007/s10549-012-2149-7

subject

Has Abstract

pub_date

2012-08-01 00:00:00

pages

1161-8

issue

eissn

0167-6806

issn

1573-7217

journal_volume

134

pub_type

临床试验,杂志文章

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Efficacy and safety of concurrent trastuzumab plus weekly paclitaxel-FEC as primary therapy for HER2-positive breast cancer in everyday clinical practice.