OBJECTIVES:
* Determine the effect of estrogen replacement therapy on recurrence free and overall survival in women with a history of stage I or II endometrial adenocarcinoma.
OUTLINE: This is a randomized, double blind study. Patients are stratified according to stage of endometrial cancer (IA vs IB/IC vs II). Patients are randomized to one of two treatment arms:
* Arm I: Patients receive oral conjugated estrogens (Premarin) daily for 3 years.
* Arm II: Patients receive oral placebo daily for 3 years. Patients are followed every 6 months for 3 years and then annually for 2 years.
PROJECTED ACCRUAL: Approximately 2,108 patients will be accrued for this study.