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A multicenter, phase II study of epirubicin/cyclophosphamide followed by docetaxel and concurrent trastuzumab as primary systemic therapy for HER-2 positive advanced breast cancer (the HER2NAT study).
MedLine Citation:
PMID:  22833344     Owner:  NLM     Status:  Publisher    
BACKGROUND: The outcome in patients with human epidermal growth factor receptor-2 (HER-2)-positive locally advanced breast cancer may be improved by integrating trastuzumab with primary systemic therapy (PST). METHODS: The efficacy and safety of PST comprising EC (epirubicin 90 mg/m(2) and cyclophosphamide 600 mg/m(2), four cycles every 3 weeks) followed by docetaxel (75 mg/m(2), four cycles every 3 weeks) and concurrent trastuzumab (loading dose 4 mg/kg followed by 2 mg/kg, 12 cycles every week) was investigated in a multicenter, prospective, phase II study in patients with HER-2-positive stage IIIB/IIIC/IV breast cancer. The primary endpoint was pathologic complete response (pCR) including the tumor intraductal component confirmed by central pathologic review. RESULTS: In total, 38 patients were enrolled (stage IIIB, 63.2 %; IIIC, 23.7 %; IV, 13.2 %; estrogen receptor- and/or progesterone receptor-positive, 47.4 %). The pCR rate was 16.2 % in the primary tumor (six of 37 patients in the Full Analysis Set) and 56.8 % (21/37) in the ipsilateral axillary lymph nodes. Treatment was given according to protocol in 28 of 37 patients; six of 28 in the Per-Protocol Set achieved pCR (21.4 %). The clinical response rate was 67.6 % (25/37 patients; complete response, 13.5 %; partial response, 54.1 %). No patients developed congestive heart failure; however, three patients had a non-symptomatic decrease of >10 % of left ventricular ejection fraction. CONCLUSIONS: PST including concurrent use of trastuzumab combined with docetaxel is effective and well-tolerated in HER-2-positive advanced breast cancer patients, including those patients requiring mastectomy for local control.
Kenjiro Aogi; Toshiaki Saeki; Seigo Nakamura; Masahiro Kashiwaba; Nobuaki Sato; Norikazu Masuda; Yoshiaki Rai; Shinji Ohno; Katsumasa Kuroi; Reiki Nishimura; Keiko Miyakoda; Futoshi Akiyama; Masafumi Kurosumi; Tadashi Ikeda
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-26
Journal Detail:
Title:  International journal of clinical oncology / Japan Society of Clinical Oncology     Volume:  -     ISSN:  1437-7772     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9616295     Medline TA:  Int J Clin Oncol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Breast Oncology, National Hospital Organization Shikoku Cancer Center, 160 Kou, Minami-umemoto-machi, Matsuyama, Ehime, 791-0280, Japan,
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