A Clinical Trial Comparing the Combination of TC Plus Bevacizumab to TC Alone and to TAC for Women With Node-Positive or High-Risk Node-Negative, HER2-Negative Breast Cancer

Clinical Trial Summary

The main purpose of this study is to learn if adding bevacizumab to standard treatment with chemotherapy (docetaxel, doxorubicin, and cyclophosphamide) for early stage HER2-negative breast cancer will prevent breast cancer from returning. A second purpose of this study is to learn if adding bevacizumab to treatment with chemotherapy will help women with HER2-negative breast cancer live longer. The researchers also want to learn about the side effects of the combination of drugs used in this study.

The B-46-I/07132 study, a multicenter, open-label, randomized Phase III, adjuvant therapy trial, will compare the value of adding bevacizumab to a non-anthracycline-based chemotherapy regimen relative to the same chemotherapy without bevacizumab and relative to an anthracycline-based chemotherapy regimen in women with resected node-positive or high-risk node-negative, HER2-negative breast cancer. This trial will determine whether the addition of bevacizumab to a regimen of docetaxel and cyclophosphamide (TCB) improves invasive disease-free survival relative to docetaxel and cyclophosphamide alone (TC). A secondary aim will be to determine whether the addition of bevacizumab to TC improves invasive disease-free survival compared to a regimen of docetaxel, doxorubicin, and cyclophosphamide (TAC). Other secondary aims include whether TCB improves disease-free survival, overall survival, and recurrence-free interval relative to TC alone and to TAC. The toxicities of the three regimens will also be compared. Patients in the B-46-I/07132 study will be randomized to one of three treatment regimens: Group 1 patients will receive 6 cycles of TAC administered every 21 days (docetaxel 75 mg/m2, doxorubicin 50 mg/m2, and cyclophosphamide 500 mg/m2); Group 2 patients will receive 6 cycles of TC administered every 21 days (docetaxel 75 mg/m2, cyclophosphamide 600 mg/m2); and Group 3 patients will receive 6 cycles of TCB every 21 days with bevacizumab therapy continuing every 21 days after completion of chemotherapy until 1 year following the first dose (docetaxel 75 mg/m2, cyclophosphamide 600 mg/m2, and bevacizumab 15 mg/kg). Primary prophylaxis with pegfilgrastim or filgrastim is required for Group 1 patients (optional for patients in Groups 2 and 3). Patients will also receive adjuvant radiation therapy as clinically indicated and endocrine therapy for hormone receptor-positive tumors. Tumor samples will be submitted for correlative science studies to evaluate predictors of study therapy benefit. Submission of a tumor sample is a study requirement for all patients. ;

Study Design

Related Conditions & MeSH terms

• Breast Cancer
• Breast Neoplasms