FDA 批准Ponatinib治疗两类罕见白血病

2012-12-18 FDA FDA

  FDA于12月14日批准了ponatinib(Iclusig, Araid),该药属于三代酪氨酸激酶抑制剂,被批准用于两种耐药的白血病,即慢性粒细胞白血病(CML)和费城染色体阳性的急性淋巴细胞白血病(Ph+  ALL)成年患者。      FDA强调ponatinib的批准比官方截止日期提前3个月。这是基于上周第54届美国血液病学年会上公布的ponatini

  FDA于12月14日批准了ponatinib(Iclusig, Araid),该药属于三代酪氨酸激酶抑制剂,被批准用于两种耐药的白血病,即慢性粒细胞白血病(CML)和费城染色体阳性的急性淋巴细胞白血病(Ph+  ALL)成年患者。 
 
  FDA强调ponatinib的批准比官方截止日期提前3个月。这是基于上周第54届美国血液病学年会上公布的ponatinibII期临床试验结果。 
 

ponatinib分子结构
  临床实验表明该药物毒性通常较低,除了几例患者发生了严重的胰腺炎。ponatinib能避开最常见的一种导致酪氨酸激酶抑制剂耐受的突变——T315I突变,该突变阻断了目前已批准的三种酪氨酸酶抑制剂imatinibdasatinibnilotinib发挥作用。 
 
  Ponatinib被认为是费城染色体的抑制剂,因为它能有效阻断由费城染色体产生的原始和所有突变形式的蛋白。患者在该试验之前,对其他酪氨酸激酶抑制剂包括dasatinib和nilotinib抵抗或耐受。但是FDA在宣布批准时并没有说,患者不能接受ponatinib作为一线治疗方法。该药在治疗CML慢性期和急性期患者中反应率最高。常见的副作用是皮疹、皮肤干燥、腹痛、头痛和便秘,大多数情况下症状很轻微。然而,FDA称,这种药物的标签将包括一个关于血液凝块和肝毒性的黑框警告。 
 
  FDA血液学和肿瘤学产品办公室药物评价与研究中心主任Richard Pazdur,在一份声明中称“Iclusig的批准是很重要的,因为它为对其他药物不反应的CML患者提供了治疗选择,特别是那些几乎没有选择治疗的余地的携带T315I突变患者。”Ponatinib基于FDA加速批准程序而批准,这就要求Ariad制药公司进行更多的试验来确认产品的益处和安全。该机构没有指出需要何种形式的研究。Ponatinib将由Ariad制药出售。


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    2013-07-20 liye789132251
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    2012-12-19 syscxl
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