ASCO 2013:双联免疫治疗转移性黑色素瘤

2013-05-27 佚名 EGMN

  纽约纪念Sloan-Kettering癌症中心的Jedd D. Wolchok博士在美国临床肿瘤学会(ASCO)2013年会前的新闻发布会上宣布,对转移性黑色素瘤患者联合使用作用机制不同的两种免疫治疗药物,已在早期研究中取得了初步成功。   在纳入37例患者的Ⅰ期研究中,伊匹单抗(Yervoy)联合在研药物nivolumab使Ⅲ~Ⅳ期黑色素瘤缩小了大约一半。治疗12周时,

  纽约纪念Sloan-Kettering癌症中心的Jedd D. Wolchok博士在美国临床肿瘤学会(ASCO)2013年会前的新闻发布会上宣布,对转移性黑色素瘤患者联合使用作用机制不同的两种免疫治疗药物,已在早期研究中取得了初步成功。

  在纳入37例患者的Ⅰ期研究中,伊匹单抗(Yervoy)联合在研药物nivolumab使Ⅲ~Ⅳ期黑色素瘤缩小了大约一半。治疗12周时,11例患者(30%)的肿瘤缩小至少80%,共有90%的应答患者仍然对该治疗有应答。

  这项Ⅰ期试验旨在检验药物安全性和不同剂量范围的适应证,而不能评估有效性。一项将nivolumab/伊匹单抗联合方案作为晚期黑色素瘤患者一线治疗的Ⅲ期随机试验将在今年6月启动。伊匹单抗是一种CTLA-4抑制剂,获准用于治疗转移性黑色素瘤。Nivolumab是一种在研的PD-1抑制剂,已在单药治疗黑色素瘤和其他癌症时显示出活性。

  在这项试验中,患有无法手术的Ⅲ~Ⅳ期黑色素瘤并且已经接受了可多达3种治疗的患者,被分为6个治疗组。本次报告的37例患者来自其中3个治疗组,他们在现行治疗的基础上加用这两种免疫药物。Nivolumab和伊匹单抗均每3周给药1次,分别给予4剂,序贯nivolumab单药治疗,仍为每3周1次,给予4剂。患者从第24周开始每3个月接受1次联合治疗。

  第一组14例患者接受3 mg/kg伊匹单抗+0.3 mg/kg nivolumab,第二组17例患者接受3 mg/kg伊匹单抗+1 mg/kg nivolumab,第三组6例患者接受3 mg/kg伊匹单抗+3 mg/kg nivolumab。结果显示这三组患者的肿瘤缩小率分别为21%、47%和50%,肿瘤缩小至少80%的患者分别占29%、41%和0%。免疫治疗的应答非常迅速——每4例对联合治疗产生应答的患者中有3例在头3个月内就出现肿瘤缩小。Wolchok博士指出,这种应答速度快于伊匹单抗单药治疗。

  在其余三组中,有两组招募的是已接受过伊匹单抗治疗的患者。这些患者仅接受nivolumab治疗,每2周1次,最多可给予48剂。尽管还只是初步数据,但在nivolumab 1 mg/kg组的16例可评价患者中有4例在8周后肿瘤缩小至少80%,即使他们最初对伊匹单抗并无明显应答。

  在接受联合治疗的53例患者中,有28例(53%)发生了3~4级副作用——主要是由无症状性脂肪酶、AST和ALT异常所致。在接受序贯治疗的33例患者中,有6例(18%)发生了3~4级副作用。这些副作用均通过标准治疗得以治愈,未发生治疗相关死亡。

  研究者目前仍在观察Nivolumab/伊匹单抗联合治疗非小细胞肺癌和肾细胞癌的效果。

Dual immunotherapy scores rapid response in metastatic melanoma
Hitting metastatic melanoma with two immunotherapies, each targeted to a different metabolic pathway, has shown some preliminary success in an early study.
Ipilimumab (Yervoy) used in combination with the investigational drug nivolumab shrank stage-III and -IV melanomas in approximately half of 37 evaluable patients in a phase-I study. Tumor reductions of at least 80% were seen at 12 weeks in 11 of 37 (30%) of patients and 90% of all patients who have responded continue to respond to therapy, Dr. Jedd D. Wolchok said at a press briefing sponsored by the American Society of Clinical Oncology highlighting research to be presented at its annual meeting...

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    2016-11-19 laoli

    学习了!谢谢分享!

    0

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    2014-03-08 sunylz
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    2014-04-13 quxin068
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