Prognostic Value of a Positive-to-negative Change in Hormone Receptor Status after Neoadjuvant Chemotherapy in Patients with Hormone Receptor-positive Breast Cancer
Prognostic Value of a Positive-to-negative Change in Hormone Receptor Status after Neoadjuvant Chemotherapy in Patients with Hormone Receptor-positive Breast Cancer
复制标题
激素受体阳性乳腺癌患者新辅助化疗后激素受体状态从阳性到阴性变化的预后价值
DOI:
10.1245/s10434-012-2318-2
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发表时间:
2012-09-01
影响因子:
3.7
通讯作者:
Shao, Zhi-Ming
中科院分区:
文献类型:
--
作者:
Chen, Sheng;Chen, Can-Ming;Shao, Zhi-Ming
To investigate the prognostic value of positive-to-negative changes in hormone receptor (HR) status after neoadjuvant chemotherapy (NCT) in patients with HR-positive breast cancer.Data from 224 stage II-III breast cancer patients with positive HR status before NCT who had residual disease in the breast after NCT were collected. HR status of the residual tumors was retested after NCT. A survival analysis was performed in 214 patients with adjuvant endocrine therapy regardless of post-NCT HR status. The survival analysis also examined other clinical and pathologic variables.In total, 15.2 % of patients had a positive-to-negative change in HR status after NCT, and this change was observed more frequently in HER-2-positive tumors than HER-2-negative tumors (P = 0.001). In 214 patients who had been treated with adjuvant endocrine therapy regardless of post-NCT HR status, the alteration in HR status was an independent factor for the prediction of a poorer disease-free survival (P = 0.026) and overall survival (P < 0.001) in the adjuvant endocrine therapy patients. The 5-year disease-free survival and overall survival rates were 43.5 % and 59.8 %, respectively, in patients with HR status conversion and 67.8 % and 82.5 %, respectively, in patients whose HR status remained positive (log rank test P = 0.003 and P = 0.001).The switch of HR status after NCT is remarkable for HR-positive tumors. An HR-negative switch may identify patients who would benefit from alternative systemic therapies.