调强放疗联合培美曲塞和顺铂同期化疗局部晚期非小细胞肺癌的临床研究

Clinical study of treatment of locally advanced non-small cell lung cancer by intensity modulated irradiation combined with Pemetrexed and Cisplatin

目的 探讨调强放疗结合培美曲赛和顺铂同期化疗局部晚期非小细胞肺癌的疗效及副反应.方法 42例Ⅲ期非小细胞肺癌患者（ⅢA期25例,ⅢB期17例）接受DT66 Cy调强放疗,疗中给予培美曲塞500 mg/m2静脉滴注第1天,顺铂75 mg/m2静脉滴注第1天,21 d为1个周期,共4个周期.放化疗在同大开始进行,先化疗后放疗.2例放疗总量54 Gy,2例56 Gy;3例完成了2周化疗,1例完成了 3周化疗.结果 34例患者完成了治疗计划.全组总有效率为79%,1年总生存率为65%.≥3级骨髓抑制2例,3级放射性食管炎3例,≥2级放射性肺炎4例,3级黏膜炎1例.结论 培美曲赛和顺铂同期放化疗局部晚期非小细胞肺癌患者具有较好的近期疗效,副反应可耐受.

Objective To observe the therapeutic effect and toxicity of chemoradiation of locally advanced non-small cell lung cancer by intensity modulated irradiation combined with pemetrexed and cisplatin. Methods Fourty-two patients presented with Ⅲ - stage non-small cell lung cancer（Ⅲ、 25 patients, ⅢB 17 patients）received concurrent chemoradiotherapy. Intensity modulated irradiation technique was used to the total dose of 66 Gy and concurrent chemotherapy consisted of pemetrexed 500 mg/m2 on Day 1 and cisplatin 75 mg/m2 on Day 1 by intravenous infusion once every 3 weeks at the initiation of radiation.Patients received 4 cycles of chemotherapy. Results Thirty-four patients finished the whole of therapeutic schedule. And 2 patients received radiation with total dose of 54 Gy, 2 patients 56 Gy;3 patients received 2 cycles of chemotherapy, 1 patients 3 cycles of chemotherapy. Total effective rate was 79%. There were 2 patients with ≥3 grade marrow depression, 3 patients with 3 grade radiation esophagitis, 4 patients with ≥2 radiation pneumonitis, and 1 patient with 3 grade mucositis. The 1-year survival rate was 65%.Conclusion Recent effect was favourable and toxicity was tolerable for chemoradiation of locally advanced non-small cell lung cancer by intensity modulated irradiation combined with pemetrexed and cisplatin.