EGFR is expressed on the cell surface of a substantial percentage of NSCLCs. Initial studies with the EGFR tyrosine kinase inhibitors (TKIs) gefitinib (Iressa) and erlotinib (Tarceva) demonstrated biologic and clinical activity in only a relatively limited subset of lung cancers.[4]
Further investigation demonstrated that the highest response rates to these TKIs were seen in patients with somatic mutations within the EGFR-TK domain, particularly exon 19 deletion, exon 21 L858R, and exon 18 G719X.[5]
By contrast, the exon 20 T790M mutation is associated with acquired resistance to TKI therapy.[6]
http://emedicine.medscape.com/article/1689988-overview
Highest response rates to TKIs in patients with EGFR-TK mutatio
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能否明言是否有效?引文看起来太难。
-litianxin-
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11/11/2014 postreply
11:59:06
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Iressa/Tarceva 对有 EGFR exon 21 突变者有效率高。
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11/11/2014 postreply
12:00:41
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国内建议特罗凯?有效吗?
-litianxin-
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11/11/2014 postreply
12:02:55
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易瑞沙和特罗凯. 特罗凯= Tarceva
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11/11/2014 postreply
12:04:44
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2种药都是口服药,没有必要住院。
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11/11/2014 postreply
12:40:00
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用周边血检测的基因突变,而不是活检,是否准确?
-litianxin-
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11/11/2014 postreply
12:09:11
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血检说有突变那就是有。血检说没有不一定没有。
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11/11/2014 postreply
12:11:50
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多谢
-litianxin-
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11/11/2014 postreply
12:12:58