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Patterns of genomic evolution between primary and metastatic breast cancer have not been studied in large numbers, despite patients with metastatic breast cancer having dismal survival. We sequenced whole genomes or a panel of 365 genes on 299 samples from 170 patients with locally relapsed or metastatic breast cancer. Several lines of analysis indicate that clones seeding metastasis or relapse disseminate...
Background: In a recent trial of first-line therapy in 353 postmenopausal women with predominantly hormone receptor-positive advanced breast cancer (the North American trial), anastrozole 1 mg QD produced a significantly longer time to disease progression (TTP) than tamoxifen 20 mg QD (11.1 months vs 5.6 months; P = 0.005). Both treatments were well tolerated, but there were fewer thromboembolic events...
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