Neoadjuvant Herceptin for Ductal Carcinoma In Situ of the Breast
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 69
- 试验地点
- 1
- 主要终点
- Number of Participants Achieving Documented Change in Proliferation
研究概览
简要总结
Primary Objectives:
- To determine the effect of a single dose of Herceptin (trastuzumab) on the proliferation rate of Her-2/neu over-expressing ductal carcinoma in situ (DCIS)
- To evaluate the effect of a single dose of Herceptin on the apoptotic index of Her-2/neu over-expressing DCIS
详细描述
Herceptin (Trastuzumab) stops or slows the growth of certain breast cancer cells by blocking the chemical signals they need to grow.
As part of your standard care for DCIS, you will have a complete routine physical exam, a mammogram of both breasts, and blood (about 2 tablespoons) will be drawn for routine tests. Some of your leftover breast biopsy tissue will be tested for Her-2/neu expression. Blood will be drawn (about 2-6 teaspoons) to check if your bone marrow (red blood cells), kidney, and liver are functioning well enough to have this treatment. Women who are able to have children must have a negative blood pregnancy test before starting treatment.
If you are eligible to take part in this study, you will receive one dose of trastuzumab at least 2 weeks before your surgery. The dose of trastuzumab will be given intravenously (through a needle in a vein in your arm) as a steady infusion over 90 minutes, on an outpatient basis. You will be checked during the infusion and for 1 hour after it is completed.
You will have routine surgery for DCIS (either segmental mastectomy, mastectomy with or without reconstruction, and possible sentinel lymph node biopsy) approximately 14 to 28 days after being given Herceptin. If a segmental mastectomy was performed as part of our standard practice you will be evaluated by a radiation oncologist following surgery. After your surgery, patients will also be evaluated by a breast medical oncologist to determine if any additional standard therapy is needed.
Tissue that is left over from the original breast biopsy and surgery will be tested for various biomarkers (substances which indicate the severity or spread of cancer), cancer growth rate, and apoptotic index (cell death rate).
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
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •All patients with histologic confirmation of DCIS (TisN0M0) that is Her-2/neu 3+ positive by immunohistochemistry (IHC) and/or positive for Her-2 gene amplification by fluorescence in situ hybridization (FISH) will be eligible for the study.
- •Patients must sign informed consent indicating that they are aware of the investigational nature of the study, in keeping with institutional policy.
- •Those patients with history of other contralateral non-invasive and invasive breast and non-breast malignancies are eligible to participate unless they have previously received a doxorubicin dose of more than 400 mg/m
- •All patients should have adequate bone marrow function, as defined by peripheral granulocyte count of > 1,500/mm3, and platelet count > 100,000 mm
- •Patients must have adequate liver function, with bilirubin within normal laboratory values. In addition, patients should have adequate renal function, defined as serum creatinine < 2.0 mg/dl.
- •Patients with intact primary tumors will be eligible for this study. Patients who have had their diagnostic biopsy at an outside facility but still have measurable disease on presentation will be eligible.
- •Patients with history of cardiac arrhythmia will be eligible for study after being seen by cardiology and deemed good candidates for participation.
- •Women of child bearing potential must have a negative urine or serum pregnancy test.
排除标准
- •Patients with a current known invasive breast cancer are not eligible for this study.
- •All patients who are Her-2/neu negative will be ineligible for the study.
- •Patients with history of congestive heart failure will be excluded.
研究组 & 干预措施
Herceptin
8 mg/kg intravenously (IV) Over 90 Minutes
干预措施: Herceptin (Trastuzumab) (Drug)
结局指标
主要结局
Number of Participants Achieving Documented Change in Proliferation
时间窗: Before and after single dose of Herceptin approximately 21 days before DCIS surgery, up to 4 weeks
Proliferation rate and apoptotic index measured on core biopsy specimen and resection specimen from each participants. To compare Antibody-Dependent Cell-Mediated Cytotoxicity (ADCC) and CD4+ T-cell response in each participant observed at pre- and post-treatment times, paired analysis was performed using Student's t-test. Nonparametric Wilcoxon rank sum test was used to compare data between groups.
Percent Change in Proliferation as Measured by Ki-67
时间窗: Before and after single dose of Herceptin approximately 21 days before surgery for ductal carcinoma in situ (DCIS), up to 4 weeks
Percent Change in Proliferation as measured by Ki-67 (% nuclei stained). Comparison of proliferation rates of Her-2/neu overexpressing cells before and after treatment with Herceptin per Participant where absolute change defined as difference of increase/decrease. Proliferation rate evaluated by immunohistochemistry using paraffin-embedded sections and monoclonal antibody for ki-67.
次要结局
- Mean Percent of Ki-67(Before and after single dose of Herceptin approximately 21 days before DCIS surgery, up to 4 weeks)