國家衛生研究院 NHRI:Item 3990099045/9697
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/9697


    Title: The clinical efficacy and cardiotoxicity of fixed-dose monthly trastuzumab in HER2-positive breast cancer: A single institutional analysis
    Authors: Wu, YY;Huang, TC;Tsai, TN;Chen, JH;Dai, MS;Chang, PY;Ho, CL;Ye, RH;Chung, TR;Chen, YC;Chao, TY
    Contributors: National Institute of Cancer Research
    Abstract: Objective Trastuzumab-containing treatment regimens have been shown to improve survival outcomes in HER2-positive breast cancer (BC). It is much easier to infuse a fixed one-vial dose to every patient on a regular schedule in the general clinical setting. The aims of this study were evaluating the efficacy of a 440 mg fixed-dose of trastuzumab administered on a monthly infusion schedule, and the risk factors for cardiac events. Patients and methods We retrospectively reviewed data from 300 HER2-positive BC patients in our institute: 208 were early-stage BC patients undergoing adjuvant trastuzumab treatment, and 92 were metastatic BC patients treated with trastuzumab infusions until disease progression. There were 181 patients receiving regular trastuzumab infusions every 3 weeks (Q3W; 8 mg/kg loading dose followed by 6 mg/kg every 3 weeks), and the other 119 patients were treated monthly with a fixed 440 mg dose (QM; fixed 440 mg every 4 weeks). Results The medians of progression-free survival (PFS) and overall survival (OS) in the adjuvant setting were not reached in both treatment groups. In the metastatic setting, there was no significant difference between groups in PFS or OS. The median time to significant cardiovascular (CV) dysfunction was 4.54 months. The incidence of congestive heart failure requiring medication in our cohort was 3.4%. Conclusion In our study, we found that fixed-dose monthly trastuzumab was feasible and effective. In addition, the CV risk was not higher with the fixed-dose protocol. This treatment modality could lower the cost and was easier to implement in clinical practice. Larger prospective randomized studies with longer-term follow up are needed to confirm our results.
    Date: 2016-03
    Relation: PLoS ONE. 2016 Mar;11(3):Article number e0151112.
    Link to: http://dx.doi.org/10.1371/journal.pone.0151112
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1932-6203&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000371991300084
    Appears in Collections:[Others] Periodical Articles

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