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The aim of the present study was to evaluate the efficacy and safety of a neoadjuvant gemcitabine and nedaplatin chemotherapy regimen, followed by concurrent chemoradiotherapy or radiotherapy alone, in locoregionally advanced nasopharyngeal carcinoma (NPC). Eighty-six patients with stage III, IVA or IVB NPC, who received neoadjuvant chemotherapy [gemcitabine, 1,000 mg/m 2 on day 1 (d1) and d5; nedaplatin, 25 mg/m 2 on d 1-3] every 3 weeks for at least two cycles, followed by intensity-modulated radiotherapy every 3 weeks, with or without concurrent nedaplatin (25 mg/m 2 , d1-3) between September 2010 and December 2013, were retrospectively analyzed. By comparing pretreatment and post-treatment MRI images, it was shown that seven patients achieved a complete response (8.5%), while 66 achieved a partial response (80.5%), following completion of neoadjuvant chemotherapy (combined response rate, 89.0%). Grade 3-4 toxicities following neoadjuvant chemotherapy included neutropenia (29.1%), leukopenia (11.6%), liver dysfunction (9.3%), thrombocytopenia (9.3%) and nausea/vomiting (8.1%). The median follow-up was 18 months (range, 5-44 months). The 2-year relapse-free survival, distant metastasis-free survival, progression-free survival and overall survival rates were 96.6, 85.4, 83.3 and 96.1%, respectively. Compared with alternative neoadjuvant chemotherapy regimens in combination with radiotherapy or concurrent chemoradiotherapy, the present gemcitabine and nedaplatin did not provide additional survival benefit and led to a higher frequency of liver dysfunction. Therefore, neoadjuvant gemcitabine and nedaplatin should be used with caution in locoregionally advanced NPC.

oncology letters

Evaluation of the efficacy and safety of a neoadjuvant gemcitabine and nedaplatin regimen followed by radiotherapy or concurrent chemoradiotherapy in locoregionally advanced nasopharyngeal carcinoma