This will be a Phase Ib study conducted to determine the safety and tolerability of an IRX-2 regimen in ESBC, to be administered pre-operatively before standard-of-care surgical resection and following standard-of-care diagnostic biopsy. This study will also include triple-negative breast cancer patients who will receive the IRX-2 regimen prior to chemotherapy.~Eligible subjects will have early stage breast cancer of any receptor sub-type, for which standard-of-care surgical resection is planned. To be eligible, a minimum of 1 core of tumor-bearing biopsy material must be available for research analysis.~Cohort B will enroll subjects triple negative breast cancer (defined by ER<10%, PR<10%, and HER2-negative by NCCN guidelines), T1c+ tumors for which neoadjuvant anthracycline-based and non-platinum containing chemotherapy is planned. The IRX-2 regimen will be administered and completed preceding chemotherapy. Cohort B subjects must undergo post-IRX-2 Regimen biopsy (2-3 cores), followed by commencement of chemotherapy preferably within one week after biopsy.~The IRX-2 regimen will be administered in all enrolled subjects. IRX 2 will be administered by subcutaneous injection into the periareolar skin of the affected breast.
The goal of this study is assess the safety and tolerability of the IRX-2 regimen in patients with early stage breast cancer (ESBC) and to estimate the pathologic complete response rate to neoadjuvant anthracycline-based and non-platinum containing chemotherapy in patients with triple-negative breast cancer who have received the IRX-2 Regimen before chemotherapy.