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Taxanes are among the key drugs for breast cancer treatment. This study aimed to evaluate the efficacy of upfront weekly nanoparticle albumin-bound paclitaxel (Nab-PTX; 100 mg/m2) for human epidermal growth factor 2 (HER2)-negative breast cancer. Patients with stage II to IV breast cancer received 12 cycles of weekly 100 mg/m2 Nab-PTX as first-line treatment. Preoperative chemotherapy with anthracyclines after Nab-PTX was recommended. From 2012 to 2014, we enrolled 66 patients. The overall response rate after Nab-PTX was 59.1% [95% confidence interval(CI)=47.2% to 71.0%), 63.6% in those with hormone receptor-positive tumors, and 36.4% in those with triple-negative tumors. The pathological complete response rate at surgery was 15% (95% CI=6.1% to 24.4%). Toxicity analysis showed grade 2 peripheral neuropathy in 38 patients (57.6%), grade 2/3 leukocytopenia in 29 (43.9%) and grade 2/3 liver dysfunction in five (7.5%). Weekly neoadjuvant Nab-PTX at 100 mg/m2 led to good response rates (59.1%) and was well tolerated. Copyright© 2017, International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved.]


Akira Matsui, Akihiko Tatibana, Noriyuki Suzuki, Masaru Hirata, Yoko Oishi, Youhei Hamaguchi, Yuya Murata, Aiko Nagayama, Yuko Iwata, Yasushi Okamoto. Evaluation of Efficacy and Safety of Upfront Weekly Nanoparticle Albumin-bound Paclitaxel for HER2-negative Breast Cancer. Anticancer research. 2017 Nov;37(11):6481-6488

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PMID: 29061836

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