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Chinese Journal of Radiation Oncology  2020, Vol. 29 Issue (3): 171-174    DOI: 10.3760/cma.j.issn.1004-4221.2020.03.003
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Dose-escalation trial of lobaplatin weekly plus concurrent radiotherapy for local-regionally advanced nasopharyngeal carcinoma
Pang Xuezhou, Qing Dong, Zhao Bin, Ma Daiyuan
Department of Oncology,Affiliated Hospital of North Sichuan Medical College,Nanchong 637000,China
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Abstract  Objective To define the maximum-tolerated dose (MTD) of lobaplatin (LBP) in a weekly regimen combined with concurrent radiotherapy in the treatment of locally advanced nasopharyngeal carcinoma (NPC). Methods A total of 18 cases with stage Ⅲ/IV A NPC were enrolled. Concurrent chemoradiotherapy was given to all the patients with a dose escalation of LBP. The initial dose of LBP was 15 mg/m2 with an escalating dose of 5 mg/m2. At least 3 patients were assigned into each group. Patients were proceeded into the next dose group if no dose-limiting toxicity (DLT) occurred until the MTD was achieved. Efficacy and toxicity were evaluated regularly. Results Three patients were assigned into the 10 mg/m2, 3 into the 15 mg/m2, and 6 into the 20 mg/m2 and 25 mg/m2 groups, respectively. Two patients experienced DLT in the 25 mg/m2 group. Hence, the MTD was determined as 20 mg/m2. At 3 months after corresponding treatment, the remission rate of nasopharyngeal tumors and neck-positive lymph nodes of the patients was 100%. The most common toxicity was reversible bone marrow suppression. Conclusions The MTD of weekly lobaplatin plus concurrent IMRT is 20 mg/m2 for locally advanced NPC. This regimen is reliable and safe, which is worthy of further clinical study.
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Pang Xuezhou
Qing Dong
Zhao Bin
Ma Daiyuan
Key wordsNasopharyngeal neoplasm/concurrent chemoradiotherapy      Lobaplatin      Dose-limiting toxicity      Maximum tolerated dose     
Received: 14 May 2019     
Fund:Bureau of Science and Technology nanchong city-Major technical problems in City-School Cooperation(18SXHZ0352)
Corresponding Authors: Ma Daiyuan,Email:mdylx@163.com   
Cite this article:   
Pang Xuezhou,Qing Dong,Zhao Bin et al. Dose-escalation trial of lobaplatin weekly plus concurrent radiotherapy for local-regionally advanced nasopharyngeal carcinoma[J]. Chinese Journal of Radiation Oncology, 2020, 29(3): 171-174.
Pang Xuezhou,Qing Dong,Zhao Bin et al. Dose-escalation trial of lobaplatin weekly plus concurrent radiotherapy for local-regionally advanced nasopharyngeal carcinoma[J]. Chinese Journal of Radiation Oncology, 2020, 29(3): 171-174.
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http://journal12.magtechjournal.com/Jweb_fszlx/EN/10.3760/cma.j.issn.1004-4221.2020.03.003     OR     http://journal12.magtechjournal.com/Jweb_fszlx/EN/Y2020/V29/I3/171
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