期刊
EUROPEAN JOURNAL OF CANCER
卷 47, 期 5, 页码 656-666出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ejca.2010.10.026
关键词
Nasopharyngeal carcinoma; Concurrent-adjuvant chemotherapy
类别
资金
- Hong Kong Cancer Fund
- Ho Hung Chiu Medical Foundation Limited
- Hong Kong Anti-Cancer Society
Background: The current standard treatment for locoregionally advanced nasopharyngeal carcinoma (NPC) was conventional-fractionation radiotherapy plus concurrent-adjuvant chemotherapy as recommended by the Intergroup-0099 Study. This combined analysis of the NPC-9901 and the NPC-9902 Trials aims to provide more comprehensive data to evaluate the efficacy of the Intergroup-0099 regimen and the contributing factors. Methods: Eligible patients with stage III-IVB non-keratinizing NPC were randomly assigned to radiotherapy-alone (RTi group: 218 patients) or chemoradiotherapy (CRTi group: 223 patients) using cisplatin (100 mg/m(2)) for three cycles in concurrence with radiotherapy, followed by cisplatin (80 mg/m(2)) plus fluorouracil (1000 mg/m(2)/day for 4 days) for three cycles. The median follow-up was 6.1 years. Findings: Comparison by intention-to-treat showed that the CRTi group achieved significant improvement in overall failure-free rate (FFR), locoregional-FFR and cancer-specific survival (p <= 0.019); but the improvements for distant-FFR and overall survival (OS) were statistically insignificant (p >= 0.14). Further exploratory studies based on actual treatment showed that an additional improvement achieved was a significant gain in OS (CRTa versus RTa group: 72% versus 63% at 5-year, p = 0.037). Multivariate analyses showed that the dose of cisplatin during the concurrent phase had significant impact on locoregional-FFR and OS, while that of fluorouracil during the adjuvant phase was significant for distant-FFR. The 5-year locoregional-FFR for patients who received 0-1, 2 and 3 concurrent cycles were 79%, 88% and 88%, respectively; the corresponding distant-FFR by adjuvant cycles were 68%, 78% and 77%, respectively. Interpretation: Our results support the current practice of adding concurrent cisplatin plus adjuvant cisplatin-fluorouracil to radiotherapy for treating patients with locoregionally advanced NPC. The concurrent phase is important for locoregional control and survival, cisplatin 200 mg/m(2) in two concurrent cycles might be adequate. Additional chemotherapy using fluorouracil-containing combination contributed to improving distant control. (C) 2010 Elsevier Ltd. All rights reserved.
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