1. Comparison of intensity-modulated radiation therapy alone vs. intensity-modulated radiation therapy combined with chemotherapy in elderly nasopharyngeal carcinoma patients (aged >65 years).
- Author
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Mi JL, Meng YL, Wu HL, Cao YL, Zhang B, Pan YF, Zhou YY, Fan JF, Liao SF, Qin XL, Yao DC, and Jiang W
- Subjects
- Aged, Disease-Free Survival, Female, Humans, Kaplan-Meier Estimate, Male, Nasopharyngeal Carcinoma pathology, Nasopharyngeal Neoplasms pathology, Neoplasm Recurrence, Local pathology, Neoplasm Recurrence, Local prevention & control, Proportional Hazards Models, Retrospective Studies, Chemoradiotherapy methods, Nasopharyngeal Carcinoma therapy, Nasopharyngeal Neoplasms therapy, Radiotherapy, Intensity-Modulated methods
- Abstract
Purpose: The efficacy and tolerability of adding chemotherapy to radiotherapy in the era of intensity-modulated radiation therapy (IMRT) remain controversial among older patients with nasopharyngeal carcinoma (NPC). The present study compared IMRT alone with IMRT in combination with chemotherapy in elderly NPC patients., Methods: Between January 2011 and December 2014, 102 patients aged >65 years with NPC who received IMRT alone (IMRT group) or IMRT in combination with chemotherapy (IMRT/CT group) were enrolled. Patients from both treatment arms were pair-matched (1:1 ratio) based on six clinical factors. Differences in overall survival (OS), disease-free survival (DFS), locoregional relapse-free survival (LRRFS), and distant metastasis-free survival (DMFS) were assessed using the Kaplan-Meier method and Cox proportional hazards models, whereas the toxicity profile was assessed using Common Terminology Criteria for Adverse Events (CTCAE) version 4., Results: No significant differences were noted in OS (72.1% vs. 72.5%, p = 0.799), DFS (65.9% vs. 70.1%, p = 0.733), LRRFS (76.4% vs. 71.6%, p = 0.184), and DMFS (90.8% vs. 98.0%, p = 0.610) between the IMRT and IMRT/CT groups. Multivariate analyses showed that chemotherapy was not an independent factor for OS, DFS, LRRFS, and DMFS. However, the incidences of grade 3 vomiting/nausea (p = 0.000), leukopenia/neutropenia (p = 0.000), thrombocytopenia (p = 0.041), and anemia (p = 0.040) were significantly higher in the IMRT/CT group compared with the IMRT group. No grade 4 toxicities were observed., Conclusion: IMRT alone was similar to IMRT/CT in treating elderly NPC patients (age >65 years), with comparable survival outcomes and less grade 3 toxicities.
- Published
- 2020
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