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临床试验/NCT00717015
NCT00717015已完成不适用

Tamoxifen Pharmacokinetics and CYP2D6 Polymorphisms in Asian Women With Hormone Receptor Positive Breast Cancer

National University Hospital, Singapore1 个研究点 分布在 1 个国家开始时间: 2005年11月最近更新:
适应症

试验速览

阶段
不适用
状态
已完成
试验地点
1
主要终点
To test the effects of genetic polymorphisms of CYP2D6 on plasma concentration of tamoxifen and its metabolites in hormone receptor positive women who are taking tamoxifen as adjuvant treatment for breast cancer.

研究概览

简要总结

We hypothesized that subjects with CYP2D6*10 alleles may have a lower steady state levels of endoxifen due to reduced conversion of tamoxifen to endoxifen.

Primary objectives:

  • To determine the steady state pharmacokinetics of tamoxifen and its metabolites
  • To test the effects of genetic polymorphisms of CYP2D6 on plasma concentration of tamoxifen and its metabolites in hormone receptor positive women who are taking tamoxifen as adjuvant treatment for breast cancer.

研究设计

研究类型
Observational
观察模型
Case Crossover
时间视角
Cross Sectional

入排标准

年龄范围
18 Years 至 —(Adult, Older Adult)
性别
Female
接受健康志愿者

入选标准

  • Signed informed consent.
  • At least 18 years of age.
  • On tamoxifen for at least 3 months for adjuvant therapy.
  • On a stable diet for past 1 week before blood sampling.
  • Compliant with tamoxifen medication.
  • Completed adjuvant chemotherapy and/or adjuvant radiation therapy.

排除标准

  • Patients should not be on the list of medications for the last 1 week before accrual to the study

结局指标

主要结局

To test the effects of genetic polymorphisms of CYP2D6 on plasma concentration of tamoxifen and its metabolites in hormone receptor positive women who are taking tamoxifen as adjuvant treatment for breast cancer.

To determine the steady state pharmacokinetics of tamoxifen and its metabolites

次要结局

未报告次要终点

研究者

申办方类型
Other

研究点 (1)

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