Letrozole or Tamoxifen Citrate in Treating Older Postmenopausal Women Undergoing Surgery for Breast Cancer
Status:
Completed
Trial end date:
2010-10-01
Target enrollment:
Participant gender:
Summary
RATIONALE: Estrogen can cause the growth of breast cancer cells. Hormone therapy using
letrozole may fight breast cancer by blocking the uptake of estrogen. Tamoxifen citrate may
fight breast cancer by blocking the use of estrogen by the tumor cells. It is not yet known
whether letrozole or tamoxifen citrate is more effective when given before surgery in
treating older women with breast cancer.
PURPOSE: This randomized phase III trial is studying letrozole to see how well it works
compared with tamoxifen citrate in treating older postmenopausal women undergoing surgery for
breast cancer.