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  • 期刊

Durable Response to Lapatinib Plus Capecitabine in Trastuzumab-Resistant HER2 Over-expressing Metastatic Breast Cancer

Lapatinib與Capecitabine於具Trastuzumab抗性且表皮生長因子陽性的轉移性乳癌有長期療效

摘要


抗表皮生長因子藥物對於表皮生長因子陽性的轉移性乳癌病人而言,是一項非常重要的治療,它能有效改善表皮生長因子陽性的轉移性乳癌的預後。在此報告一位54歲女性在第一期乳癌的手術與抗荷爾蒙治療一年後,發現具有表皮生長因子接受器陽性的肝轉移,在接受傳統化療藥物與trastuzumab治療無效後,予以lapatinib與capecitabine治療,有效控制長達兩年以上。在此我們討論分析第二線抗表皮生長因子藥物(lapatinib)的藥效與機轉。

並列摘要


HER2-directed therapy has become an important agent in the treatment of metastatic breast cancer, and has altered the natural course of HER2-overexpressing breast cancer. We report a 54-year-old woman with initial stage breast cancer with subsequent metastasis to the liver, with positive ER and PR, and HER2 over-expression within one year of mastectomy and adjuvant hormone therapy. The patient showed a lengthy positive response, two years in duration, to lapatinib and capecitabine after resistance build-up to traditional chemotherapy and trastuzumab treatment. Here we discuss the effectiveness and mechanisms of the second line anti-HER2 treatment, lapatinib.

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