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Outcomes of adding induction chemotherapy to concurrent chemoradiotherapy for stage T3N0-1 nasopharyngeal carcinoma: a propensity-matched study

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机构: [1]Sun Yat Sen Univ, Dept Radiat Oncol, Canc Ctr, State Key Lab Oncol South China,Collaborat Innova, Guangzhou, Guangdong, Peoples R China; [2]Sun Yat Sen Univ, Dept Radiat Oncol, Sun Yat Sen Mem Hosp, Guangzhou, Guangdong, Peoples R China; [3]Sun Yat Sen Univ, Dept Ultrasound, Canc Ctr, State Key Lab Oncol South China,Collaborat Innova, Guangzhou, Guangdong, Peoples R China; [4]Sun Yat Sen Univ, Dept Radiat Oncol, Canc Ctr, State Key Lab Oncol South China, 651 Dongfeng East Rd, Guangzhou 510060, Guangdong, Peoples R China
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关键词: nasopharyngeal carcinoma induction chemotherapy intensity-modulated radiation therapy propensity score matching stage T3N0-1

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Objective: Our objective was to examine whether adding induction chemotherapy to concurrent chemoradiotherapy improved survival in stage III nasopharyngeal carcinoma (NPC) patients, especially in low-risk patients at stage T3N0-1. Materials and methods: We retrospectively analyzed 687 patients with stage T3N0-1 NPC treated with intensity-modulated radiation therapy (IMRT) plus concurrent chemotherapy (CC) with or without induction chemotherapy (IC). Propensity score matching (PSM) method was used to select 237 pairs of patients from two cohorts. Overall survival (OS), locoregional relapse-free survival (LRFS), distant metastasis-free survival (DMFS), and progression-free survival (PFS) were assessed by using the Kaplan-Meier method, log-rank test, and Cox regression analysis. Results: No significant survival differences were observed between IC plus CC and CC cohorts with similar 4-year OS (91.7% vs 92.6%, P=0.794), LRFS, (92.7% vs 96.8%, P=0.138), DMFS (93.5% vs 94.3%, P=0.582), and PFS (87.5% vs 91.1%, P=0.223). In a univariate analysis, lower Epstein-Barr virus deoxyribonucleic acid (EBV DNA; < 4,000 copies/mL) significantly improved 4-year DMFS (95.5% vs 91.6%, P=0.044) compared with higher EBV DNA (>= 4,000 copies/mL). No factors were associated with 4-year OS, LRFS, DMFS, and PFS in a multivariate analysis. IC plus CC group experienced higher rates of grade 3-4 leucopenia (P < 0.001) and neutropenia (P < 0.001). Conclusion: The addition of IC to CC in stage T3N0-1 NPC patients treated with IMRT did not significantly improve their survival. The IC group experienced higher rates of grade 3-4 hematological toxicities. Therefore, further investigation is required.

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出版当年[2017]版:
大类 | 3 区 医学
小类 | 3 区 生物工程与应用微生物 4 区 肿瘤学
最新[2023]版:
大类 | 4 区 医学
小类 | 3 区 生物工程与应用微生物 4 区 肿瘤学
第一作者:
第一作者机构: [1]Sun Yat Sen Univ, Dept Radiat Oncol, Canc Ctr, State Key Lab Oncol South China,Collaborat Innova, Guangzhou, Guangdong, Peoples R China; [2]Sun Yat Sen Univ, Dept Radiat Oncol, Sun Yat Sen Mem Hosp, Guangzhou, Guangdong, Peoples R China;
通讯作者:
通讯机构: [1]Sun Yat Sen Univ, Dept Radiat Oncol, Canc Ctr, State Key Lab Oncol South China,Collaborat Innova, Guangzhou, Guangdong, Peoples R China; [4]Sun Yat Sen Univ, Dept Radiat Oncol, Canc Ctr, State Key Lab Oncol South China, 651 Dongfeng East Rd, Guangzhou 510060, Guangdong, Peoples R China
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