Article
Immunohistochemical Phenotype of Breast Cancer during 25-Year Follow-up of the Royal Marsden Tamoxifen Prevention Trial.
Cancer prevention research (Philadelphia, Pa.) - 1 Mar 2017
Detre Simone I, Ashley Susan, Mohammed Kabir, Smith Ian E, Powles Trevor J, Dowsett Mitch
Abstract excerpt
The randomized, double-blinded Royal Marsden Tamoxifen Breast Cancer Prevention Trial in healthy high-risk women started in 1986 and is still blinded. Eligible participants (n = 2,471) were randomly assigned to tamoxifen (20 mg/d) or placebo for 8 years. Analysis in 2006 showed a 30% risk reduction of estrogen receptor (ER)-positive invasive breast cancer mostly in the posttreatment period. Biomarker analysis in...
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