Head And Neck Tumor
Impact of three to four cycles of neoadjuvant chemotherapy on survival of patients with N2-N3 nasopharyngeal carcinoma
Jiawang Wei, Rong Huang, Xin Yu, Qiaoxuan Wang, Weiwei Xiao, Lixia Lu, Yuanhong Gao, Hui Chang
Published 2017-04-15
Cite as Chin J Radiat Oncol, 2017, 26(4): 380-383. DOI: 10.3760/cma.j.issn.1004-4221.2017.04.003
Abstract
ObjectiveTo evaluate the impact of three to four cycles of neoadjuvant chemotherapy (NACT) on the survival of patients with N2-N3 nasopharyngeal carcinoma (NPC).
MethodsThe clinical data of 915 patients with T1-4N2-3M0 NPC from 2007 to 2010 were retrospectively analyzed. A total of 179 patients treated with 3-4 cycles of NACT (NACT≥3 group) were matched with 358 patients treated with 2 cycles of NACT (NACT=2 group) and 179 patients treated without NACT (NACT=0 group, concurrent chemoradiotherapy group) for age, N stage, pathological subtype, and NACT regimen. The Kaplan-Meier method was used to calculate overall survival (OS), disease-free survival (DFS), recurrence-free survival (RFS), and distant metastasis-free survival (DMFS) rates, the log-rank test was used for survival difference analysis and univariate prognostic analysis, and the Cox proportional hazards model was used for multivariate prognostic analysis.
ResultsFor the NACT≥3, NACT=2, and NACT=0 groups, the 5-year OS rates were 89.4%, 81.6%, and 73.7%, respectively (P=0.000), the 5-year DFS rates were 83.2%, 69.8%, and 64.2%, respectively (P=0.000), the 5-year RFS rates were 86.0%, 76.0%, and 69.3%, respectively (P=0.001), and the 5-year DMFS rates were 86.6%, 76.0%, and 68.3%, respectively (P=0.000). Three to four cycles of NACT was an independent protective factor for OS, DFS, RFS, and DMFS in patients with N2-N3 NPC.
ConclusionThree to four cycles of NACT can significantly improve the survival of patients with N2-N3 NPC.
Key words:
Nasopharyngeal neoplasms/neoadjuvent chemotherapy; Prognosis
Contributor Information
Jiawang Wei
Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou 510060, China
Rong Huang
Department of Oncology, Ganzhou People′s Hospital, Ganzhou 341000, China
Xin Yu
Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou 510060, China
Qiaoxuan Wang
Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou 510060, China
Weiwei Xiao
Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou 510060, China
Lixia Lu
Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou 510060, China
Yuanhong Gao
Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou 510060, China
Hui Chang
Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou 510060, China