Leukemia:干扰素联合达沙替尼对新诊断慢性髓系白血病有较好控制效果

2016-05-05 佚名 不详

最近,发表在Leukemia上的一项小型研究探讨了将聚乙二醇化干扰素ɑ2b(PegIFN)添加至酪氨酸激酶抑制剂(TKI)达沙替尼中治疗新诊断慢性髓系白血病(CML)的疗效。 研究作者说,干扰素具有强化机体抗白血病免疫反应、抑制肿瘤生长和靶向抑制白血病干细胞的作用,这不同于TKIs达沙替尼。因此,干扰素是进一步增加TKI治疗疗效的适合选择。 该研究共纳入40例新

最近,发表在Leukemia上的一项小型研究探讨了将聚乙二醇化干扰素ɑ2b(PegIFN)添加至酪氨酸激酶抑制剂(TKI)达沙替尼中治疗新诊断慢性髓系白血病(CML)的疗效。

研究作者说,干扰素具有强化机体抗白血病免疫反应、抑制肿瘤生长和靶向抑制白血病干细胞的作用,这不同于TKIs达沙替尼。因此,干扰素是进一步增加TKI治疗疗效的适合选择。

该研究共纳入40例新诊断CML患者。所有患者最初接受了3个月的达沙替尼治疗,随后增加了PegIFN治疗,开始剂量为15 μg/周,头3个月后增加至25 μg/周(第6个月至第15个月)。

在开始PegIFN治疗的3个月时,10%的患者达到了主要分子学响应(MMR),66%达到了完全细胞遗传学缓解(CCgR)。在开始PegIFN治疗之后,这些响应率明显升高:6个月时,82%的患者达到了CCgR,12个月时CCgR升高至97%。另外,6个月时,55%的患者达到了MMR,增长了45%。另外,研究作者注意到,12个月时的MMR率(84%)明显高于其它研究中达沙替尼单药治疗组的MMR率。

该联合方案的毒性反应可控,并且未发生预期之外的不良事件。整体上,6名患者发生了需住院治疗的严重不良反应,主要包括心动过缓、心房纤颤、头痛、发热及其他。治疗第1年时,仅有1名患者发生了胸腔积液,而在治疗第2年时,超过3名患者发生了胸腔积液。

研究人员总结到,虽然随访期较短,但该研究结果表明达沙替尼联合干扰素可能会增加长期无治疗缓解的机会,并且这些试验数据为后续开展探讨达沙替尼有/无干扰素相关试验奠定了基础。

原始出处:

Hjorth-Hansen H, Stentoft J, Richter J, Koskenvesa P, Höglund M, Dreimane A, Porkka K, Gedde-Dahl T, Gjertsen BT, Gruber FX, Stenke L, Eriksson KM, Markevärn B, Lübking A, Vestergaard H, Udby L, Bjerrum OW, Persson I, Mustjoki S, Olsson-Strömberg U. Safety and efficacy of the combination of pegylated interferon-α2b and dasatinib in newly diagnosed chronic phase chronic myeloid leukemia patients. Leukemia. 2016 May 2. doi: 10.1038/leu.2016.121

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