Clinical Study to Assess Entry of Chemotherapeutic Agents Into Brain Metastases in Women With Breast Cancer
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 10
- 试验地点
- 2
- 主要终点
- Concentration of drug
研究概览
简要总结
RATIONALE: Drugs used in chemotherapy work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Lapatinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Monoclonal antibodies, such as trastuzumab, can block tumor growth in different ways. Some block the ability of tumor cells to grow and spread. Others find tumor cells and help kill them or carry tumor-killing substances to them. Studying samples of tumor tissue and blood from patients may help doctors understand how well these drugs can be carried to the brain.
PURPOSE: More definitive knowledge of the penetration of chemotherapeutic and other agents into the brain is necessary for the future rational design of drug and drug regimens that target brain metastases. This clinical trial is studying how well capecitabine, cyclophosphamide, doxorubicin, gemcitabine, lapatinib, paclitaxel, trastuzumab, or vinorelbine penetrates brain tumors.
详细描述
OBJECTIVES:
- To determine the concentration of capecitabine, cyclophosphamide, doxorubicin hydrochloride, gemcitabine hydrochloride, lapatinib ditosylate, paclitaxel, trastuzumab (Herceptin®), or vinorelbine ditartrate in brain metastases in women with breast cancer.
- To analyze drug penetrability by modeling the relationship between drug concentration in the tumor and drug concentration in blood samples.
OUTLINE: Patients are assigned to receive 1 of the 8 agents by the patient's treating oncologist.
Patients receive a single dose of the following study drugs immediately preceding surgery: oral capecitabine; cyclophosphamide IV over 30 minutes; doxorubicin hydrochloride IV over 15 minutes; gemcitabine hydrochloride IV over 30 minutes; oral lapatinib ditosylate*; paclitaxel IV over 3 hours; trastuzumab (Herceptin®) IV over 30-90 minutes; or vinorelbine ditartrate IV over 10-30 minutes . Patients then undergo craniotomy for resection of the brain metastases.
NOTE: *Patients receive oral lapatinib ditosylate at least 3 days prior to surgery and immediately before surgery.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Only
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 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
结局指标
主要结局
Concentration of drug
时间窗: Post-Op Per Sample Collection
Serum/plasma concentrations: measured for all agents except trastuzumab by HPLC or LC-MS/MS. Trastuzumab concentrations measured by enzyme linked immunosorbent assay. Compared to tissue levels and the extent of change in serum/plasma during the surgical process will be noted. Tissue Concentrations: determined by HPLC/LC-MS/MS or by ELISA. The objective would be to compare tumor concentration to brain adjacent to tumor, which often has an intact BBB. The degree of BBB compromise in the specimens will be assessed through analysis of serum protein levels and hemoglobin.
次要结局
未报告次要终点