OUTLINE: This is a randomized, double blind study. Patients are stratified according to number of metastatic sites (less than 3 vs 3 or more), tamoxifen sensitivity (sensitive vs refractory), and degree of estrogen receptor positivity (high vs low vs unknown). Patients are randomized to receive 1 of 2 doses of arzoxifene hydrochloride. Patients receive arzoxifene hydrochloride orally once daily for 12 weeks. Treatment continues in the absence of toxicity and disease progression. Quality of life is assessed before, during, and at the completion of the study. Patients are followed every 4 weeks for 12 weeks, at 30 days after the last treatment, and every 2-3 months after the last treatment.