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Neratinib after trastuzumab-based adjuvant therapy in patients from Asia with early stage HER2-positive breast cancer

Aim: To evaluate the efficacy and safety of neratinib as extended adjuvant therapy in patients from Asia based on exploratory analyses of the Phase III ExteNET trial. Patients & methods: A total of 2840 women with early stage HER2-positive breast cancer were randomly assigned to neratinib 240 mg...

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Bibliographic Details
Main Authors: Iwata, Hiroji, Masuda, Norikazu, Kim, Sung-Bae, Inoue, Kenichi, Rai, Yoshiaki, Fujita, Takashi, Chiu, Joanne, Ohtani, Shoichiro, Takahashi, Masato, Miyaki, Toshiko, Lu, Yen-Shen, Xu, Binghe, Yap, Yoon Sim, Bustam, Anita Zarina, Yao, Bin, Zhang, Bo, Bryce, Richard, Chan, Arlene
Format: Article
Published: Future Medicine 2019
Subjects:
R Medicine
Online Access:http://eprints.um.edu.my/24103/
https://doi.org/10.2217/fon-2019-0143
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Summary:Aim: To evaluate the efficacy and safety of neratinib as extended adjuvant therapy in patients from Asia based on exploratory analyses of the Phase III ExteNET trial. Patients & methods: A total of 2840 women with early stage HER2-positive breast cancer were randomly assigned to neratinib 240 mg/day or placebo for 1 year after trastuzumab-based adjuvant therapy. Results: A total of 341 patients were from Asia (neratinib, n = 165; placebo, n = 176). 2-year invasive disease-free survival rates were 92.8 and 90.8% with neratinib and placebo, respectively (HR: 0.70; 95% CI: 0.31-1.55), and 5-year rates were 91.9 and 87.2%, respectively (HR: 0.57; 95% CI: 0.27-1.13). Diarrhea was the most common adverse event with neratinib. Conclusion: Extended adjuvant therapy with neratinib reduces disease recurrences in Asian women with HER2-positive breast cancer. Trial registration: Clinicaltrials.gov NCT00878709. © 2019 Future Medicine Ltd.

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