c-erb B2 overexpression decreases the benefit of adjuvant tamoxifen in early-stage breast cancer without axillary lymph node metastases.

作者: C Carlomagno , F Perrone , C Gallo , M De Laurentiis , R Lauria

DOI: 10.1200/JCO.1996.14.10.2702

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摘要: PURPOSEWe studied retrospectively the interaction between c-erbB2 overexpression and adjuvant tomoxifen in node-negative breast cancer patients enrolled Gruppo Universitario Napoletano 1 (GUN-1) trial.PATIENTS AND METHODSc-erbB2, evaluated by immunohistochemistry 145 of 173 randomly assigned to 2-year tamoxifen or no further therapy, was considered overexpressed if greater than 10% cells showed specific membrane staining. The role each prognostic variable their independent effect were using Cox model. Disease-free (DFS) overall (OAS) survival curves estimated Kaplan-Meier method.RESULTSAs November 30, 1994, median follow-up period 12 years. 43 (29.7%), which directly correlated with tumor size inversely estrogen receptor (ER) level. At univariate analysis, did not affect either DFS OAS; had a on reducing risk rec...

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