Abstract
Estrogen exposure is one of the strongest risk factors for breast cancer development. Chemoprevention with selective estrogen receptor modulators (SERM), such as tamoxifen and raloxifene, has been shown in randomized controlled trials to reduce breast cancer incidence by up to 50% among high-risk women. Despite the strength of this evidence, there is significant underutilization of chemoprevention. Given the relatively few modifiable breast cancer risk factors, SERM use provides an important strategy for the primary prevention of this disease. Understanding factors which influence chemoprevention decision-making will inform efforts to implement breast cancer risk assessment and increase chemoprevention uptake in clinical practice. Cancer Prev Res; 10(11); 609-11. ©2017 AACRSee related article by Holmberg et al., p. 625.