免疫性血小板减少病人的romiplostim或标准治疗

2010-11-19 MedSci原创 MedSci原创

  背景 Romiplostim,一种血小板生成素模拟物,增加免疫性血小板减少病人的血小板计数,而且几乎没有不良反应。   方法 在这项开放标签、为期52周的研究中,我们将234例患有免疫性血小板减少但没有接受脾切除术的成年病人,随机分配接受标准治疗(77例病人)或每周1次皮下注射romiplostim(157例病人)治疗。主要终点是治疗失败和脾切除术的发生率。次要终点包括血小板反应率(在任何

  背景 Romiplostim,一种血小板生成素模拟物,增加免疫性血小板减少病人的血小板计数,而且几乎没有不良反应。

  方法 在这项开放标签、为期52周的研究中,我们将234例患有免疫性血小板减少但没有接受脾切除术的成年病人,随机分配接受标准治疗(77例病人)或每周1次皮下注射romiplostim(157例病人)治疗。主要终点是治疗失败和脾切除术的发生率。次要终点包括血小板反应率(在任何规定的复诊时间,血小板计数>50×109/L)、安全性转归和生活质量。

  结果 Romiplostim组的血小板反应率是标准治疗组的2.3倍[95%可信区间(CI)为2.0~2.6,P<0.001]。接受 romiplostim的病人治疗失败发生率[157例病人中有18例(11%)]显著低于接受标准治疗的病人[77例病人中有23例(30%),P<0.001](romiplostim的比值比为0.31,95%CI为0.15~0.61)。接受romiplostim的病人脾切除术发生率[157例病人中有14例(9%)]也低于接受标准治疗的病人[77例病人中有28例(36%),P<0.001](比值比为 0.17,95%CI为0.08~0.35)。与标准治疗组相比,romiplostim组的出血事件发生率较低,输血较少,并且生活质量改善较大。 23%接受romiplostim的病人(154例中有35例)和37%接受标准治疗的病人(75例中有28例)发生了严重不良事件。

  结论 与接受标准治疗的病人相比,采用romiplostim治疗的病人血小板反应率较高,治疗失败和脾切除术发生率较低,出血和输血较少,以及生活质量较高。

  (N Engl J Med 2010;363:1889-99.November 11,2010)

免费全文下载:http://www.nejm.org/doi/pdf/10.1056/NEJMoa1002625

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