JCO:化疗后取得完全缓解的儿童霍奇金淋巴瘤早期患者可不进行放疗

2013-07-18 ecoliDH5 dxy

在2013年4月期《临床肿瘤学杂志》上,柏林布赫HELIOS医院的WolfgangDorffel博士等人公布了GPOH-HD95研究的最终结果,该研究针对经化疗后取得完全缓解(CR)以及取得不完全缓解的儿童霍奇金淋巴瘤(HL)患者,分别通过不进行放疗(RT)或将常规放疗剂量降低至20 Gy的手段,以最大程度降低患者的晚期效应风险。 在1995年至2001年期间,共有来自7个欧洲国家的92

在2013年4月期《临床肿瘤学杂志》上,柏林布赫HELIOS医院的WolfgangDorffel博士等人公布了GPOH-HD95研究的最终结果,该研究针对经化疗后取得完全缓解(CR)以及取得不完全缓解的儿童霍奇金淋巴瘤(HL)患者,分别通过不进行放疗(RT)或将常规放疗剂量降低至20 Gy的手段,以最大程度降低患者的晚期效应风险。

在1995年至2001年期间,共有来自7个欧洲国家的925例经典型HL(cHL)患者在德国儿童肿瘤及血液学会霍奇金淋巴瘤试验95 (GPOH-HD95)进行了登记。治疗1组(TG1; 早期)患者接受了两个周期的长春新碱、甲基苄肼、强的松及阿霉素或长春新碱、泼尼松、依托泊苷及阿霉素化疗。

而在TG2(中期)及TG3(晚期)组中,患者另需接受2或4个周期的环磷酰胺、长春新碱、强的松及甲基苄肼治疗。取得CR(经计算机断层扫描或核磁共振成像判定)的患者不进行RT治疗。瘤体体积缩小值大于75%的患者则需接受剂量为20 Gy的减量累及野RT,对于残存瘤体较大的患者,需另接受10或15Gy剂量的推量放疗。

研究结果表明,患者的10年总生存率、无进展生存率(PFS)及无事件生存率(± SE)分别为96.3%± 0.6%、88.2% ±1.1%及 85.4% ±1.3%。TG1组中,接受与未接受RT治疗患者的PFS分别为97.0% ± 2.1% 及92.2%± 1.7% ,但在TG2组中,非放疗患者的PFS并不理想,TG3组患者也取得了类似结果(未达到显著水平) 。从25 Gy的常规放射剂量降低至20 Gy并未增加患者失败率。

研究作者认为,对于化疗后取得CR的早期HL患者,可不进行RT。而对于经化疗后取得部分缓解的患者,可通过20(-35) Gy剂量的RT进行治疗。


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