重组人血小板生成素治疗特发性血小板减少性紫癜的多中心随机对照临床试验

发布时间：2019-03-20 21:14

【摘要】：目的评价重组人血小板生成素(rhTPO)治疗糖皮质激素无效的特发性血小板减少性紫癜(ITP)患者的有效性和安全性。方法采用多中心、随机开放、空白对照方法,将糖皮质激素治疗无效的患者随机分为试验组(rhTPO+达那唑)和对照组(达那唑)。两组患者在整个试验阶段均口服达那唑0.2g/次,3次/d。试验组皮下注射rhTPO1.0μg/kg,1次/d,疗程14d,停用rhTPO后观察14d。对照组口服达那唑14d后,如血小板仍≤20×109/L接受rhTPO治疗,用法如前,停用rhTPO后观察14d。试验的主要终点是比较两组间第一阶段(前14d内)血小板计数增加的最高值和血小板计数的曲线下面积;次要终点是比较两组间第一阶段的显效率和有效率,对照组第二阶段应用rhTPO前后的血小板计数、显效率和有效率。结果入选患者140例,试验组和对照组分别为73例和67例,最终进入FAS集者分别为73例和63例,进入PPS集者分别为60例和50例。主要终点FAS结果显示:试验组rhTPO治疗后血小板计数最高值平均增加101.2×109/L,显著高于对照组的33.3×109/L(P=0.0060);试验组血小板计数的曲线下面积749.6,显著高于对照组的316.2(P=0.0000)。次要终点FAS结果显示:试验组第一阶段的显效率和有效率(显效+良效)分别为38.4%和60.3%,明显高于对照组的7.9%(P=0.0003)和36.5%(P=0.0104);对照组第一阶段第14天血小板计数≤20×109/L的患者,接受rhTPO治疗后显效率和有效率分别达到31.1%和66.7%。试验组停用rhTPO后血小板计数逐渐下降,但停药14d时仍维持在50×109/L左右。rhTPO对白细胞计数、血红蛋白、胆红素、凝血试验、抗GPⅡb/Ⅲa和GPⅠb自身抗体无明显影响。不良事件的发生率,试验组和对照组分别为34.3%和26.2%,其中以肝胆指标异常最常见,分别为15.1%和16.9%。rhTPO相关的不良事件发生率13.6%,主要有轻度嗜睡、头晕、短暂性视野缺损、过敏样反应和乏力等。结论 rhTPO是一种治疗慢性ITP的疗效确切、较为安全的药物。
[Abstract]:Objective to evaluate the efficacy and safety of recombinant human thrombopoietin (rhTPO) in the treatment of idiopathic thrombocytopenic purpura (ITP) patients with ineffective glucocorticoid. Methods the patients with ineffective glucocorticoid therapy were randomly divided into two groups: trial group (rhTPO danazol) and control group (danazol). The patients in both groups were given danazol 0.2g/ 3 times per day during the whole trial phase. The experimental group was subcutaneously injected with rhTPO 1.0 渭 g / kg,1 per day for 14 days. After the treatment with rhTPO, it was observed for 14 days. After oral administration of danazol for 14 days in the control group, if the platelet was still 鈮，

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