Contrast-Enhanced Breast MRI For Evaluation Of Patients Undergoing Neoadjuvant Treatment For Locally-Advanced Breast Cancer (I-SPY 1/ACRIN 6657)
试验速览
- 阶段
- 2 期
- 状态
- 已完成
- 入组人数
- 356
- 试验地点
- 21
- 主要终点
- Disease-free three-year survival
研究概览
简要总结
RATIONALE: Diagnostic procedures such as magnetic resonance imaging (MRI) may help determine the effectiveness of chemotherapy in killing breast cancer and allow doctors to plan more effective treatment.
PURPOSE: Diagnostic trial to study the effectiveness of MRI in monitoring tumor response in women who are receiving chemotherapy for stage III breast cancer.
详细描述
OBJECTIVES:
- Identify surrogate markers of response to neoadjuvant chemotherapy by contrast-enhanced magnetic resonance imaging (MRI) that are predictive of pathologic remissions and survival in women with stage III breast cancer.
- Identify two groups of patients who have statistically different 3-year disease-free survival using MRI measurements of tumor response to neoadjuvant chemotherapy.
- Determine whether MRI measurements of tumor response after the first course of neoadjuvant chemotherapy can predict which of these patients will ultimately have poor clinical response to chemotherapy.
- Compare the accuracy of MRI vs mammography in predicting the extent of residual disease as determined by histopathology in these patients.
- Determine whether initial MRI tumor characteristics (morphologic and vascular patterns) predict pathological response and/or survival in these patients.
- Estimate the conditional probability of response to paclitaxel based on MRI measurements of response to doxorubicin and cyclophosphamide in these patients.
OUTLINE: This is a multicenter study.
Patients receive an injection of gadopentetate dimeglumine and undergo magnetic resonance imaging (MRI) and magnetic resonance spectroscopy of the breast within 4 weeks before beginning neoadjuvant chemotherapy, 20-28 hours or 48-96 hours after the first course of doxorubicin and cyclophosphamide (Type 1 chemotherapy), between Type 1 chemotherapy and paclitaxel chemotherapy regimens (Type 2 chemotherapy) (MRI only) if the patient continues to Type 2 chemotherapy, and 3-4 weeks after final neoadjuvant chemotherapy treatment (1-2 weeks before surgery).
Patients also undergo mammograms and possibly ultrasounds that coincide with the first and last MRI. Core or needle biopsy is performed after the first MRI but before the first course of Type 1 chemotherapy and between Type 1 chemotherapy and Type 2 chemotherapy (if the patient continues to Type 2 chemotherapy).
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Diagnostic
- 盲法
- None
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
Disease-free three-year survival
时间窗: 3 years
次要结局
- Change in the maximum dimension of the tumor over time(3 years)
- Change in the tumor volume over time(3 years)
- Maximum dimension of tumor size measure by MRI, mammography, and pathology(3 years)
- Extent of residual disease(3 years)
- MRI volume(3 years)
- MRI peak signal enhancement ratio (SER)(3 years)
- Morphological pattern(3 years)
- Change in tumor size by clinical exam(3 years)
- SER distribution (percent of tumor in highest SER category)(3 years)