
SAN FRANCISCO-Five years of tamoxifen (Nolvadex) is standard treatment for many women with estrogen-receptor (ER)-sensitive breast cancer, but the question of what to do after that is unresolved. Raloxifene (Evista) has been considered by some researchers as a possible next treatment, but preclinical data suggest this will not be a successful strategy. Ruth M. O’Regan, MD, of Northwestern University Robert H. Lurie Comprehensive Cancer Center, presented the data at the 37th Annual Meeting of the American Society of Clinical Oncology (ASCO abstract 95).