Lapatinib and Trastuzumab With or Without Endocrine Therapy
A Phase II Trial of Lapatinib and Trastuzumab With or Without Endocrine Therapy in Locally Advanced HER2 Overexpressing Breast Cancer Patients
We think that lapatinib will help to shrink your tumor when given prior to the main or primary therapy for the kind of breast cancer you have been diagnosed with. When treatment is given before the main or primary therapy, it is called neoadjuvant therapy. We will compare lapatinib with lapatinib plus trastuzumab (herceptin) for 12 weeks. If your tumor is estrogen receptor positive (ER positive), estrogen deprivation will also be given to you. Tumors that are ER positive have a lot of estrogen receptors found in them. This is also called "over expression" or amplification of estrogen receptors.
The most important information we will get from this study is to see the response to "neoadjuvant" (treatment given before the main treatment), lapatinib with trastuzumab (herceptin) in your tumor tissue sample.
研究概览
详细说明
The neoadjuvant setting is especially attractive for studies of predictive biologic correlates for several reasons including early assessment of response to therapy, access to the primary tumor, and reduced patient numbers compared to those required in the adjuvant setting. Response to neoadjuvant therapy is a validated surrogate marker for improved survival; it may be used to test the overall efficacy of neoadjuvant treatment regimens and response in the primary tumor mirrors the effect of therapy on micrometastases.
Trastuzumab is an efficacious agent in HER2 overexpressing breast cancers. Our results with neoadjuvant trastuzumab indicate that its efficacy may be better in patients with treatment-naïve tumors compared to metastatic disease, with 26% of patients showing a partial response after only 3 weeks of therapy. No patients progressed during this 3-week period. We have also conducted a neoadjuvant lapatinib study given as a single agent for 6 weeks. The response rates in this second study have been impressive with greater than 80% responses in patients with HER2 positive locally advanced breast cancers. It is likely that the true response rate to HER2 blockade would be higher had therapy been continued for longer. We therefore hypothesize that lapatinib, a dual tyrosine kinase inhibitor, together with trastuzumab, will result in tumor regression when given as neoadjuvant therapy in HER2 overexpressing breast cancer. We will compare lapatinib plus trastuzumab for 12 weeks, and if the tumors express ER, estrogen deprivation will also be administered.
This is a phase II trial. Clinical efficacy will be assessed by bidimensional tumor measurements of the primary cancer at baseline, and at the end of week 12. Objective tumor response rate defined as objective bidimensional tumor measurements after neoadjuvant treatment at 12 weeks will be calculated, and assessed according to standard RECIST criteria. Pathologic responses will be graded as pathologic complete response if there is no invasive cancer in the residual breast at the time of surgery. Near pathologic complete response will also be documented as residual disease of less than 1 cm.
研究类型
注册 (实际的)
阶段
- 阶段2
联系人和位置
学习地点
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Alabama
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Birmingham、Alabama、美国、35294
- UAB Cancer Center
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Illinois
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Chicago、Illinois、美国、60637
- The University of Chicago
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Maryland
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Baltimore、Maryland、美国、21231-1000
- Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins Bunting-Blaustein Cancer Research
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Minnesota
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Rochester、Minnesota、美国、55905
- Mayo Clinic Cancer Center
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Tennessee
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Nashville、Tennessee、美国、37232-6868
- Vanderbilt-Ingram Cancer Center
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Texas
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Houston、Texas、美国、77030
- Baylor College of Medicine, Lester and Sue Smith Breast Center
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
- All patients must be female.
- Signed informed consent.
- Locally advanced breast cancers or primary breast cancers are eligible. Locally advanced cancers must be of clinical and/or radiologic size >3 cm, or >2 cm with clinical evidence of axillary nodal involvement. (If tumors are less than 3 cm, we will use radiologically measured tumor size to determine the minimal tumor size for eligibility and in assessing tumor size during follow-up).
- HER2 overexpressing tumors defined as HercepTest score of 3+, or > 10% cells moderately or strongly HER2 positive by other methods, or Allred semi-quantitative score of >5, or gene amplified.
- Negative serum pregnancy test (HCG) within 7 days of starting study, if of child-bearing potential.
- Kidney and liver function tests - all within 1.5 times the institution's upper limit of normal.
- Performance status (WHO scale) less than 2 and life expectancy more than 6 months.
- Age at least 18 years.
- No brain or leptomeningeal disease.
- No previous or current malignancies at other sites within the last 5 years, with exception of adequately treated cone-biopsied in situ carcinoma of the cervix uteri and basal or squamous cell carcinoma of the skin.
Note: The presence of pathological involvement of axillary nodes will be assessed and agreed upon by two investigators.
Exclusion Criteria:
- Pregnancy or unwillingness to use a reliable contraceptive method in women of child-bearing potential.
- Severe underlying chronic illness or disease.
- Cardiomyopathy or baseline LVEF less than 50%.
- Other investigational drugs while on study.
- Severe or uncontrolled hypertension, history of congestive heart failure or severe coronary arterial disease.
- Malabsorption syndrome, disease significantly affecting gastrointestinal function, or resection of the stomach or small bowel. Subjects with ulcerative colitis are also excluded
- Taking any lapatinib-prohibited medication within 7 days of first dose of study medications. (See Prohibited Medications List in protocol.)
学习计划
研究是如何设计的？
设计细节
- 主要用途：治疗
- 分配：不适用
- 介入模型：单组作业
- 屏蔽：无（打开标签）
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
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实验性的：Single Group Assignment
Lapatinib Trastuzumab Endocrine
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Monoclonal Antibody
其他名称：
Monoclonal Antibody
其他名称：
Hormonal Therapy
其他名称：
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研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Pathologic Assessment After Study Treatment
大体时间：12 weeks
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Pathologic Assessment After 12 weeks of lapatinib and trastuzumab with or without endocrine therapy.
Pathologic complete response: no invasive cancer in the residual breast.
Near pathologic complete response: residual disease of less than 1 cm in breast.
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12 weeks
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其他结果措施
结果测量 |
大体时间 |
|---|---|
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Data Analysis of the Biomarkers: Immunohistochemical Staining of Cells From Breast Biopsies and Skin Biopsies Will be Performed.
大体时间：one year
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one year
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合作者和调查者
出版物和有用的链接
一般刊物
- Veeraraghavan J, De Angelis C, Mao R, Wang T, Herrera S, Pavlick AC, Contreras A, Nuciforo P, Mayer IA, Forero A, Nanda R, Goetz MP, Chang JC, Wolff AC, Krop IE, Fuqua SAW, Prat A, Hilsenbeck SG, Weigelt B, Reis-Filho JS, Gutierrez C, Osborne CK, Rimawi MF, Schiff R. A combinatorial biomarker predicts pathologic complete response to neoadjuvant lapatinib and trastuzumab without chemotherapy in patients with HER2+ breast cancer. Ann Oncol. 2019 Jun 1;30(6):927-933. doi: 10.1093/annonc/mdz076.
- Rimawi MF, Mayer IA, Forero A, Nanda R, Goetz MP, Rodriguez AA, Pavlick AC, Wang T, Hilsenbeck SG, Gutierrez C, Schiff R, Osborne CK, Chang JC. Multicenter phase II study of neoadjuvant lapatinib and trastuzumab with hormonal therapy and without chemotherapy in patients with human epidermal growth factor receptor 2-overexpressing breast cancer: TBCRC 006. J Clin Oncol. 2013 May 10;31(14):1726-31. doi: 10.1200/JCO.2012.44.8027. Epub 2013 Apr 8.
研究记录日期
研究主要日期
学习开始 (实际的)
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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