MedicalResearch.com Interview with:
Audree Tadros, MD, MPH
Chief Administrative Fellow, Breast Surgical Oncology Training Program
Department of Breast Surgical Oncology
MD Anderson Cancer Center and
Henry M. Kuerer, MD, PhD, FACS
Executive Director, Breast Programs
MD Anderson Cancer Network
PH and Fay Etta Robinson Distinguished Professor in Cancer Research
Dept of Breast Surgical Oncology
Director, Breast Surgical Oncology Training Program
MedicalResearch.com: What is the background for this study?
Response: Neoadjuvant chemotherapy (NCT) has the ability to confer a pCR (pathologic complete response-when no residual cancer is found) in both the breast and axillary lymph nodes. We know that this is most likely to occur in women with HER2 positive and triple negative disease. The high rate of pCR among these patients raises the question of whether surgery is still required, particularly among those who will receive adjuvant radiation therapy.
Until recently, we lacked the ability to pre-operatively predict patients who achieved a breast pCR. Recently, we completed a clinical feasibility trial examining the ability of image-guided biopsy to predict a pCR after neoadjuvant chemotherapy. Our biopsy technique was able to accurately predict a pCR in 98% of patients with only a 5% false negative rate. Based upon these findings, we believe we can accurately determine which patients achieve a breast pCR. This led us to develop a clinical trial to see if breast surgery is redundant in patients who achieve a pCR. An important question that remained was if we are going to omit breast surgery in these exceptional responders, can we also omit axillary surgery?