NEJM:西妥昔单抗方案对纵隔B细胞淋巴瘤有较高治愈率

2014-03-27 MedSci MedSci原创

发表于2013年4月最新一期NEJM期刊上的一项研究显示,原发性纵隔B细胞淋巴瘤联合化疗方案中添加西妥昔单抗,可获得较高的治愈率,并且还可避免胸部放疗。 在这项单组前瞻性Ⅱ期研究中,51例淋巴瘤成人患者接受剂量调整的依托泊苷、阿霉素、环磷酰胺、长春新碱、泼尼松和西妥昔单抗(DA-EPOCH- R)治疗。结果显示,除2例患者外,其余均免于放疗。在中位随访5年期间,无病例复发。美国国立癌症研究所(

发表于2013年4月最新一期NEJM期刊上的一项研究显示,原发性纵隔B细胞淋巴瘤联合化疗方案中添加西妥昔单抗,可获得较高的治愈率,并且还可避免胸部放疗。

在这项单组前瞻性Ⅱ期研究中,51例淋巴瘤成人患者接受剂量调整的依托泊苷、阿霉素、环磷酰胺、长春新碱、泼尼松和西妥昔单抗(DA-EPOCH- R)治疗。结果显示,除2例患者外,其余均免于放疗。在中位随访5年期间,无病例复发。美国国立癌症研究所(NCI)的Kieron Dunleavy博士及其同事称:“上述结果表明,DA-EPOCH-R方案是此类淋巴瘤治疗方面的进步。”

研究者曾发现,DA-EPOCH方案总生存率为79%。为考察添加西妥昔单抗能否进一步改善治疗结局,他们纳入了肿瘤≥5 cm且带瘤时间超过13年的初治患者。受试者中位年龄30岁(19~52岁),59%为女性。纵隔B细胞淋巴瘤为晚期,中位直径11 cm。大约30%的患者属于Ⅳ期。

这51例患者均接受了6~8个周期的DA-EPOCH-R方案治疗。治疗后,2例患者病灶持续,1例患者疾病进展,其中2例患者接受纵隔放疗,1例 接受切除活检,3例患者治疗后均无病生存。随访(3~156个月)结束后,总生存率为97%,无事件生存率为93%,未见癌症复发病例。

研究者指出,原发性纵隔B细胞淋巴瘤发生于胸腺,具有侵袭性,通常表现为局部较大的纵隔肿瘤,常伴有胸腔和心包积液,患者多为年期女性。有关该疾病 的研究较少,且结果不一致,因此目前尚无治疗标准。免疫化疗通常达不到肿瘤控制目标,现行治疗方案是在高强度化疗后行纵隔放疗(与严重后期副作用有关)。

该化疗方案的毒性反应与其他既往报告事件相似。中性粒细胞减少症出现于全部化疗周期的半程,血小板减少症发生率为6%,因发热和中性粒细胞减少症需 要住院治疗发生率为13%。未见明显心脏毒性反应。Dunleavy博士及其同事等研究者还报告了另外一项有关DA-EPOCH-R治疗的回顾性队列研究 结果。该研究纳入过去5年在斯坦福大学加州分校医学中心接受治疗的16例患者。所有患者均可免于放疗,无事件生存率为100%。

一项针对原发性纵隔B细胞淋巴瘤儿童或青少年患者DA-EPOCH-R方案治疗的国际试验正在进行中(clinical trial number NCT01516567)。

该研究由NCI资助。安进公司提供非格司亭,但没有参与研究设计、数据收集或分析。研究报告无相关利益冲突

相关研究:
NEJM:低强度EPOCH -R方案可有效治疗免疫缺陷伯基特淋巴瘤成人患者

原始出处:
Dunleavy K, Pittaluga S, Maeda LS, Advani R, Chen CC, Hessler J, Steinberg SM, Grant C, Wright G, Varma G, Staudt LM, Jaffe ES, Wilson WH.Dose-adjusted EPOCH-rituximab therapy in primary mediastinal B-cell lymphoma.N Engl J Med. 2013 Apr 11;368(15):1408-16.

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    2014-10-23 cenghis
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    2014-07-21 chengjn
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    2014-03-27 202.171.253.105

    翻译错误

    0

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