Breast Cancer Research

official impact factor 5.79

Commentary

Prevention of breast cancer using selective oestrogen receptor modulators (SERMs)

Trevor J Powles

Author Affiliations

Parkside Oncology Centre, Parkside, Wimbledon, London SW19 5NB, UK

Breast Cancer Research 2006, 8:111 doi:10.1186/bcr1601

Published: 16 October 2006

Abstract

Placebo controlled trials in over 25,000 women showed that tamoxifen reduced breast cancer risk by about 40% and osteoporotic fracture risk by about 32%. Similarly placebo controlled trials in nearly 18,000 women showed that raloxifene reduced breast cancer risk by 44–72% and osteoporotic fractures risk by 30–50%. A direct comparison of tamoxifen with raloxifene showed similar risk reduction for breast cancer and osteoporotic fractures with less toxicity for raloxifene.