Breast Cancer Clinical Trial
Official title:
A Phase III Prospective, Randomized, Double-Blind Clinical Trial of Hormone Replacement Therapy In Postmenopausal Women With A History Of Node-Negative Or Ductal Carcinoma In Situ Who Are Receiving Adjuvant Tamoxifen
RATIONALE: Hormone replacement therapy may be effective in managing the hot flashes and/or vaginal symptoms in postmenopausal women who are receiving tamoxifen for breast cancer. PURPOSE: Randomized phase III trial to determine the effectiveness of hormone replacement therapy in managing hot flashes and/or vaginal symptoms in postmenopausal women who are receiving tamoxifen for breast cancer.
OBJECTIVES: - Determine the efficacy of hormone replacement therapy in managing hot flashes and menopausal vaginal symptoms in postmenopausal women with a history of node-negative invasive carcinoma or ductal carcinoma in situ of the breast who are receiving adjuvant tamoxifen. - Determine the effect of this regimen on blood coagulation and lipid profiles in these patients. - Determine the quality of life of patients treated with this regimen. OUTLINE: This is a randomized, double-blind, placebo-controlled, multicenter study. Patients are stratified according to prior hysterectomy (yes vs no), symptom complex (vasomotor vs vaginal vs both), duration of hot flashes (less than 1 year or no hot flashes vs 1 year or more), and average daily number of hot flashes (less than 10 or none vs 10 or more). Patients are randomized to one of two treatment arms. - Arm I: Patients who have not undergone prior hysterectomy receive oral medroxyprogesterone once daily for 6 months. If, after 1 month, symptoms do not resolve, patients receive oral conjugated estrogens once daily in addition to medroxyprogesterone for 5 months. Patients who have undergone prior hysterectomy receive oral conjugated estrogens once daily for 6 months. - Arm II: Patients receive oral placebo once daily for 6 months. Quality of life is assessed at baseline and months 1, 2, 3, and 6. Patients are followed every 3 months for 2 years, every 6 months for 3 years, and then annually thereafter. PROJECTED ACCRUAL: A total of 120 patients (60 per treatment arm) will be accrued for this study within 12 months. ;
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