This randomized phase II trial studies how well carboplatin and docetaxel or carboplatin and paclitaxel followed by doxorubicin hydrochloride and cyclophosphamide before surgery work in treating patients with newly diagnosed stage I-III triple negative breast cancer (triple negative breast cancers do not have estrogen receptors, progesterone receptors, or human epidermal growth factor receptor 2 (HER2/neu) protein. Chemotherapy drugs, such as carboplatin, docetaxel, paclitaxel, doxorubicin hydrochloride, and cyclophosphamide work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. It is not yet known whether carboplatin and docetaxel are more effective than carboplatin and paclitaxel followed by doxorubicin hydrochloride and cyclophosphamide before surgery in treating patients with triple negative breast cancer.
Study sponsor and potential other locations can be found on ClinicalTrials.gov for NCT02413320.
PRIMARY OBJECTIVES:
I. To evaluate the pathological complete response (pCR) rates with neoadjuvant chemotherapy regimens of carboplatin plus paclitaxel x 4 cycles (CbP) → doxorubicin (doxorubicin hydrochloride) plus cyclophosphamide x 4 cycles (AC) and carboplatin plus docetaxel x 6 cycles (CbD) in subjects with stage I-III triple-negative breast cancer (TNBC).
SECONDARY OBJECTIVES:
I. To evaluate minimal residual disease (MRD) rates (residual cancer burden score of 0/1) with two neoadjuvant chemotherapy regimens (CbP → AC and CbD) in subjects with stage I-III TNBC.
TERTIARY OBJECTIVES:
I. To compare pCR and MRD rates in subjects with germline breast cancer (BRCA) associated and BRCA wild type TNBC with the two neoadjuvant chemotherapy regimens.
II. Exploratory assessment of cost associated with the delivery of the two chemotherapy regimens.
OUTLINE: Patients are randomized to 1 of 2 treatment arms.
ARM A: Patients receive paclitaxel intravenously (IV) over 60 minutes and carboplatin IV over 30 minutes on day 1. Treatment with paclitaxel repeats every week for 12 courses and carboplatin every 21 days for 4 courses in the absence of disease progression or unacceptable toxicity. Beginning 3 weeks after the last dose of carboplatin and/or 1 week after the last dose of paclitaxel, patients also receive doxorubicin hydrochloride IV over 3-5 minutes and cyclophosphamide IV over 30 minutes on day 1. Treatment repeats every 14 days for 4 courses in the absence of disease progression or unacceptable toxicity.
ARM B: Patients receive docetaxel IV over 60 minutes and carboplatin IV over 30 minutes on day 1. Treatment repeats every 21 days for 6 courses in the absence of disease progression or unacceptable toxicity.
In both arms, beginning 3-6 weeks after completion of chemotherapy, patients undergo either modified radical mastectomy or lumpectomy. All patients with pretreatment lymph node positive disease and positive sentinel lymph node undergo complete axillary lymph node dissection and/or axillary radiation.
After completion of study treatment, patients are followed up for 6 months.
Lead OrganizationUniversity of Kansas Cancer Center
Principal InvestigatorPriyanka Sharma