A systematic comparison of treatment modalities for nasal extranodal natural killer/T-cell lymphoma in early stages between concurrent chemoradiotherapy and sequential chemotherapy
Authors Qian M, Tao HM, Xu W, Ji HZ
Received 7 March 2017
Accepted for publication 9 June 2017
Published 20 July 2017 Volume 2017:10 Pages 3617—3623
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Lucy Goodman
Peer reviewer comments 3
Editor who approved publication: Dr Carlos Vigil Gonzales
Ming Qian,1 Hengmin Tao,1 Wei Xu,2 Hongzhi Ji2
1Department of Head and Neck Radiotherapy, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, People’s Republic of China, 2Department of Otorhinolaryngology-Head and Neck Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, People’s Republic of China
Aim: Nasal extranodal natural killer/T-cell lymphoma (nasal ENKTL), which is strongly associated with the Epstein–Barr virus infection, is a common disease in Asia and Latin America. We conducted a retrospective study to compare the overall survival (OS) following concurrent or sequential treatment with radiotherapy and chemotherapy in patients with early stage ENKTL.
Patients and methods: The records of 58 cases from between 2000 to 2010 were retrieved. Of these, 28 patients (15 males, with median age of 51 years) were treated with sequential chemotherapy followed by radiotherapy (SCRT) and 30 patients (17 males, with median age of 46 years) were treated with concurrent chemoradiotherapy (CCRT). Subsequently, the OS, 5-year progression-free survival (PFS), 5-year locoregional-free survival (LRFS), and relevant toxicities were analyzed.
Results: There were no significant differences in the toxicities and complete response rate between the 2 groups (all P>0.05) during and immediately after treatment. Kaplan–Meier curve analysis demonstrated that there were significant differences between the CCRT and SCRT groups with regard to 5-year OS (72.9% vs 47.1%, P=0.029), 5-year PFS (68.8% vs 34.2%, P=0.030), and LRFS (78.9% vs 45.7%, P=0.026).
Conclusion: We have demonstrated that in comparison with SCRT, CCRT significantly improves the survival outcome in patients with localized ENKTL, with acceptable toxicities. Further clinical trials are needed.
Keywords: nasal extranodal natural killer/T-cell lymphoma, concurrent chemoradiotherapy, treatment outcome
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