A Trial of Exemestane in Postmenopausal Women With DCIS or at High Risk for Invasive Breast Cancer
试验速览
- 阶段
- 2 期
- 状态
- 已完成
- 入组人数
- 46
- 试验地点
- 2
- 主要终点
- Percent Change in Mammographic Density at 1 Year on Exemestane
研究概览
简要总结
The primary goal of this 5-year study is to determine whether exemestane alone or in combination with celecoxib decreases breast tissue density in healthy postmenopausal women at high risk for breast cancer. Dense breast tissue seen on mammography has been linked to an increased risk of breast cancer. The study will also examine the effects of exemestane and celecoxib on bone density, blood hormone levels and quality of life. Exemestane, approved by the Food and Drug Administration for treating postmenopausal women with breast cancer, lowers the amount of estrogen in the body. Celecoxib, approved for treating arthritis pain and for reducing the number or colon polyps in an inherited syndrome, is an anti-inflammatory drug. Half of the women in the study will receive exemestane alone and half will receive exemestane and celecoxib together.
In December 2004, the arm using exemestane and celecoxib was closed to accrual
Postmenopausal women who are at increased risk for developing invasive breast cancer may be eligible to participate. Candidates are screened with breast cancer risk assessment, medical history and physical examination, blood tests, review of medical records, if needed, breast biopsy, and dual energy x-ray absorptiometry (DEXA) scan to assess bone density. For the DEXA scan, the subject lies still on a table for about 30 minutes while the spine and hip are scanned using a small amount of radiation.
Participants take exemestane in pill form once a day for 2 years. They also take calcium and vitamin D pills daily to help protect bone health. They are followed in the clinic during the course of the study to determine the amount of drug taken and any side effects, and for the following tests and procedures:
- Medical evaluation and blood tests at after 1 and 3 months on study drugs
- Medical evaluation at 6 months
- Breast biopsy at screening and then at 12 months
- dual-emission x-ray absorptiometry (DEXA) scan of the spine, mammogram and routine blood tests before starting study drugs and then yearly for 5 years.
详细描述
Background:
Evidence from adjuvant treatment trials of invasive breast cancer with aromatase inhibitors suggests that these agents are superior to tamoxifen in preventing contralateral breast cancer and are well tolerated. These agents are promising breast cancer chemopreventive agents. Data on safety and effect on surrogate biomarkers in a healthy at risk population is lacking.
Objectives:
Primary:
-The primary objective is to evaluate the study drug effects on mammographic density after one year on treatment.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Prevention
- 盲法
- None
入排标准
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- 未提供
排除标准
- 未提供
研究组 & 干预措施
Exemestane
exemestane 25 mg by mouth (PO) every day for two years taken with calcium carbonate 1200 mg PO every day and vitamin D 400 IU PO every day Initially patients were initially planned to receive Celecoxib but the study was amended prior to any subject going on and Celecoxib was never administered to any subjects.
干预措施: Exemestane (Drug)
Exemestane
exemestane 25 mg by mouth (PO) every day for two years taken with calcium carbonate 1200 mg PO every day and vitamin D 400 IU PO every day Initially patients were initially planned to receive Celecoxib but the study was amended prior to any subject going on and Celecoxib was never administered to any subjects.
干预措施: Calcium carbonate (Dietary Supplement)
Exemestane
exemestane 25 mg by mouth (PO) every day for two years taken with calcium carbonate 1200 mg PO every day and vitamin D 400 IU PO every day Initially patients were initially planned to receive Celecoxib but the study was amended prior to any subject going on and Celecoxib was never administered to any subjects.
干预措施: Vitamin D (Dietary Supplement)
结局指标
主要结局
Percent Change in Mammographic Density at 1 Year on Exemestane
时间窗: 1 year
次要结局
- Effect of This Drug on Bone Mineral Density(1 year)
- Change in Breast Density at 2 Years(2 years)
- Effect of This Drug on Serum Hormones, Insulin-like Growth Factor Pathway Components, and Leptin at 3 Months and 1 Year(3 months and 1 year)
- Absolute Change of Lipid Profiles on Exemestane From Baseline(1 year)
- Effect of This Drug on Breast Tissue Trefoil Factor 1 and Proliferating Cell Nuclear Antigen Expression, Prolactin, and Breast Tissue Prolactin Receptor at 1 Year(1 year)
- Effect of Exemestane on Autocrine Prolactin and Breast Tissue Prolactin Receptor at One Year(1 year)
- Number of Serum and Breast Tissue Samples Collected for Exploratory Proteomic Profiles at One Year(1 year)