Abstract
The study aims to identify clinical and pathological factors predictive of disease-free survival (DFS) and overall survival (OS) in locally advanced breast cancer (LABC) patients who do not have a pathologic complete response (no-pCR) of primary tumor after neoadjuvant chemotherapy (NC) with vinorelbine/epirubicin (VE) intravenous combination regimen. Retrospectively reviewed data of LABC patients in our Hospital. 97 patients who had no-pCR after NC were identified and enrolled in the study. All patients were treated with three cycles of VE intravenous administration before operation. Local–regional radiotherapy was offered to patients after the completion of chemotherapy followed by hormone therapy according to hormone receptor status. Neoadjuvant chemotherapy consisting of intravenous vinorelbine 25 mg/m on day 1 and 8 plus epirubicin 60 mg/m on day 1 was administered every 3 weeks. The relationship of survival with clinical and pathological factors was evaluated. Univariate analysis (log-rank tests) and multivariate analysis (Cox regression analysis) were performed to identify independent predictors for DFS and OS. Study was analyzed with a median follow-up of 65 months. The 5-year rates for DFS and OS were 58.0 and 68.5 %, respectively. Multivariate analysis revealed that three factors such as the estrogen receptor expression before NC (pre-ER), Ki-67 expression after NC (post-Ki-67), and pathological response of primary tumor (pRT) were independent prognostic factors of LABC patients (pre-ER and pRT for DFS, all three for OS). The DFS at 5 years was 73.8 % for patients without both factors, 51.5 % for patients with any one of both factors, and 10.3 % for patients with both factors. The OS at 5 years was 90.5 % for patients without these three factors, 64.3 % for patients with any one of these three factors, and 30.8 % for patients with any two of these three factors. Patients with all three factors died within 3 years. In LABC patients with no-pCR, three factors independently predicted of survival and, without those three high-risk factors, patients had the promising outcome.
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Acknowledgments
We thank all the surgeons, radiologists, oncologists, pathologists, and nurses who contributed; Ya-fen Li, Wei-guo Chen for assistance with this study. This work was supported by Grants from the National Natural Science Foundation of China (Nos. 81172520; 81202087; 81202088, 81472462), Natural Science Foundation of Shanghai Municipal Science and Technology Commission (Grant Number: 12ZR1446400), Technology Innovation Act Plan of Shanghai Municipal Science and Technology Commission (Grant Number: 14411950200, 14411950201), and Joint Research Project of the Emerging Cutting-edge Technology of Shanghai Shen-kang Hospital Development Center (Grant Number: SHDC12014103).
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Huang, O., Jiang, M., Chen, Xs. et al. Prognostic Factors of Survival in Pathologic Incomplete Response Patients with Locally Advanced Breast Cancer After Neoadjuvant Chemotherapy. Cell Biochem Biophys 71, 1181–1190 (2015). https://doi.org/10.1007/s12013-014-0327-4
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DOI: https://doi.org/10.1007/s12013-014-0327-4