PT - JOURNAL ARTICLE AU - Kuznar, Wayne ED - Gray, Richard G. TI - Tamoxifen in Estrogen Receptor-Positive Breast Cancer: 10 Years Superior to 5 Years DP - 2013 Aug 01 TA - MD Conference Express PG - 13--14 VI - 13 IP - 6 4099 - http://mdc.sagepub.com/content/13/6/13.2.short 4100 - http://mdc.sagepub.com/content/13/6/13.2.full AB - Ten years of adjuvant tamoxifen is superior to 5 years in reducing the rates of late recurrence and death in women with estrogen receptor (ER)-positive breast cancer. Breast cancer mortality is reduced by about one third over 15 years when women with ER-positive tumors are treated with 5 years of adjuvant tamoxifen. The effect of an additional 5 years of treatment on breast cancer recurrence and death was examined in the randomized Phase 3 Adjuvant Tamoxifen: To Offer More? study [aTTom; ISRCTN17222211; Gray RG et al. J Clin Oncol 2013 (suppl; abstr 5)]