Phase II Study of Weekly Intravenous 1,25 Dihydroxycholecelciferol (Calcitriol) + Dexamethasone in Androgen Independent Prostate Cancer
试验速览
- 阶段
- 2 期
- 状态
- 终止
- 入组人数
- 18
- 试验地点
- 1
- 主要终点
- Objective Response (Complete or Partial Response)
研究概览
简要总结
RATIONALE: Calcitriol may help prostate cancer cells become more like normal cells, and to grow and spread more slowly. Dexamethasone may help calcitriol work better by making tumor cells more sensitive to the drug. Giving calcitriol together with dexamethasone may be an effective treatment for prostate cancer that did not respond to hormone therapy .
PURPOSE: This phase II trial is studying how well giving calcitriol together with dexamethasone works in treating patients with prostate cancer that did not respond to hormone therapy.
详细描述
OBJECTIVES:
- To investigate the response rate in patients with androgen-independent prostate cancer treated with calcitriol and dexamethasone.
- To evaluate the toxicity of high-dose calcitriol and dexamethasone in these patients.
OUTLINE: Patients receive oral dexamethasone once on days 1 and 2 and calcitriol IV over 1 hour on day 2. Treatment repeats weekly in the absence of disease progression or unacceptable toxicity.
Blood samples are collected at baseline and on days 2 and 3 to assess VDR and CYP24 expression in peripheral blood mononuclear cells.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- — 至 120 Years（Child, Adult, Older Adult）
- 性别
- Male
- 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
Dexamethasone and Calcitriol
Patients receive oral dexamethasone once on days 1 and 2 and calcitriol IV over 1 hour on day 2. Treatment repeats weekly.
干预措施: laboratory biomarker analysis (Other)
Dexamethasone and Calcitriol
Patients receive oral dexamethasone once on days 1 and 2 and calcitriol IV over 1 hour on day 2. Treatment repeats weekly.
干预措施: calcitriol (Dietary Supplement)
Dexamethasone and Calcitriol
Patients receive oral dexamethasone once on days 1 and 2 and calcitriol IV over 1 hour on day 2. Treatment repeats weekly.
干预措施: dexamethasone (Drug)
Dexamethasone and Calcitriol
Patients receive oral dexamethasone once on days 1 and 2 and calcitriol IV over 1 hour on day 2. Treatment repeats weekly.
干预措施: protein expression analysis (Genetic)
结局指标
主要结局
Objective Response (Complete or Partial Response)
时间窗: 1 year
Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR.
次要结局
- Corrected Serum Calcium Expression(1 year)