a study on Breast Cancer
RATIONALE: Androgens can cause the growth of breast cancer cells. Antihormone therapy, such as bicalutamide, may stop the adrenal glands from making androgens.
PURPOSE: This phase II trial is studying how well bicalutamide works in treating patients with metastatic breast cancer.
Bicalutamide for the Treatment of Androgen Receptor Positive (AR(+)), Estrogen Receptor Negative, Progesterone Receptor Negative (ER(-)/PR(-)) Metastatic Breast Cancer Patients: A Phase II Feasibility Study
OUTLINE: This is a open-label study.
Patients receive oral bicalutamide once daily for 4 weeks. Treatment repeats every 4 weeks for 6 months in the absence of disease progression or unacceptable toxicity. Patients achieving complete response, partial response, or stable disease may continue to receive bicalutamide as above at the discretion of the investigator.
Patients undergo blood and tissue sample collection for correlative studies. Samples are analyzed for hormonal levels, including estradiol, total testosterone, free testosterone, and sex-hormone binding globulin, and proteins, including ALCAM, SPEDF, and CK 5/6, by immunohistochemical analysis at baseline, after course 1, and at the end of the study.
After completion of study treatment, patients are followed every 3 months.
PROJECTED ACCRUAL: A total of 28 patients will be accrued for this study.
Breast Cancer stage IV breast cancer recurrent breast cancer male breast cancer Bicalutamide
For people ages 18–120
PRIOR CONCURRENT THERAPY:
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