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Phase Ⅱ study of gemcitabine plus cisplatin chemotherapy combined with intensity modulated radiotherapy in locoregionally advanced nasopharyngeal carcinoma
OU Dan, HE Xia-yun, HU Chao-su, YING Hong-mei, ZHU Guo-pei
Department of Radiation Oncology, Fudan University Shanghai Cancer Center;Department of Oncology, Shanghai Medical College, Fudan University;Shanghai 200032, China Corresponding author:HE Xia-yun,Email:xiayunhesh@yahoo.cn
Abstract Objective To evaluate the efficacy and toxicity of gemcitabine plus cisplatin (GP) chemotherapy combined with intensity-modulated radiation therapy (IMRT) in locoregionally advanced nasopharyngeal carcinoma (NPC). Methods 71 patients (Stage Ⅲ:41, Stage ⅣA:30) with locoregionally advanced NPC were entered this study. Neoadjuvant chemotherapy was consisted of cisplatin 25 mg/m2 intravenously on d1-3 and gemcitabine 1000 mg/m2 in 30 minutes intravenous infusion on days 1 and 8, every 3 weeks for 2 cycles. Adjuvant chemotherapy consisted of 2 cycles of the same GP regimen was given at 28 days after the end of radiotherapy. The prescription doses was 66.0-70.4 Gy to the gross tumor volume, 66 Gy to positive neck nodes, 60 Gy to the high-risk clinical target volume, 54 Gy to the low-risk clinical target volume. Results The overall response rate to neoadjuvant chemotherapy was 91.2%,acute toxicity was mainly grade 1-2 myleosuppression. All patients completed IMRT. The median follow-up duration was 38 months. The 3-year nasopharyngeal local control, regional control, distant metastasis-free survival rate and overall survival rate were 93%, 99%, 91%, 90%, respectively. Severe late toxicities included grade 3 trismus in 1 patient, grade 3 hearing impairment in 2 patients and cranial nerve palsy in 2 patients, respectively. No grade 4 late toxicities were observed. Conclusions The combination of GP chemotherapy and IMRT for locoregionally advanced nasopharyngeal carcinoma is well-tolerated, convenient, effective, and warrants further studies of more proper cycles of GP regimen.
OU Dan,HE Xia-yun,HU Chao-su et al. Phase Ⅱ study of gemcitabine plus cisplatin chemotherapy combined with intensity modulated radiotherapy in locoregionally advanced nasopharyngeal carcinoma[J]. Chinese Journal of Radiation Oncology, 2012, 21(5): 412-414.
OU Dan,HE Xia-yun,HU Chao-su et al. Phase Ⅱ study of gemcitabine plus cisplatin chemotherapy combined with intensity modulated radiotherapy in locoregionally advanced nasopharyngeal carcinoma[J]. Chinese Journal of Radiation Oncology, 2012, 21(5): 412-414.
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