• Y Q Wang, Y Yang, H Y Zhuo, L Q Zou, Y Jiang, and M Jiang.
• Center of Medical Oncology, West China Hospital, Sichuan University, Chengdu, People's Republic of China, wyqforstudy@163.com.
• Med. Oncol. 2015 Feb 1;32(2):435.

AbstractStage III/IV extranodal natural killer/T cell lymphoma (ENKL) has a poor response and poor survival. Given the sensitivity of ENKL to radiotherapy and the fact that there is no consensus on standard chemotherapy, we conducted a clinical trial of LVDP regimen, combining LVDP chemotherapy (containing etoposide, dexamethasone, L-asparaginase, and cisplatin), followed by radiotherapy as a consolidation therapy regimen, for newly diagnosed patients with stage III/IV ENKL to evaluate the efficacy and safety of this regimen. The primary endpoints were overall response rate (ORR) and survival [overall survival (OS) and progression-free survival (PFS)] at 1 or 2 years, while the secondary endpoints were toxicity and adverse effects. In total, 18 patients were enrolled in this trial from July 2010 to September 2013. The mean completed cycles of chemotherapy was 4.04 (range 1-8 cycles), and the ORR was 50 %. During a mean follow-up of 21.8 months (range 2-51 months), the 1-year OS and PFS rates were 72.2 and 50.0 %, respectively, the 2-year OS and PFS rates were 33.3 and 22.2 %, respectively, and the median OS and PFS were 23.0 and 10.5 months, respectively. Severe adverse effects during therapy included six cases of grade 3/4 bone marrow suppression and one case of grade 3 transaminase increase. Sex, eastern cancer oncology group, performance status, Korean Prognostic Index, International Prognostic index, and bone marrow infiltration may influence the prognosis of advanced-stage ENKL.

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