Haematol:接受尼罗替尼一线治疗的慢性粒细胞白血病患者的无治疗缓解:10 年随访研究

2022-04-16 网络 网络

在 CP-CML 中使用 NIL 前线可以在相关数量的患者中诱导稳定的 TFR,尽管心血管毒性仍然值得关注。

尼洛替尼(NIL)是一种酪氨酸激酶抑制剂(TKI),最初被证明对慢性期(CP)慢性髓系白血病(CML)耐药或不耐受的患者有效,每日两次400mg,耐受性良好。

此次报告一项10年随访研究,该研究招募了 73 名新诊断为慢性期的成年患者(中位年龄 51 岁,范围 18-83) (CP)-慢性粒细胞白血病 (CML) 以研究尼罗替尼 (NIL) 一线治疗的疗效和毒性。

图1:在研究的前5年,NIL400mg的治疗时间。2007年至2008年期间,所有患者开始注射新生儿注射,剂量为400mg,每日两次。授权后在意大利2011年11月的零的剂量300毫克每日两次的一线治疗,GIMEMA协议修改,这样所有患者仍然接受剂量400毫克每日两次减少到300毫克每日两次到2012年9月。NIL400mg的中位持续时间为51个月(IQR:25-56个月)。

尼罗替尼初始剂量为 400 毫克,每日两次;一旦该剂量获得批准和登记,剂量就减少到每天两次 300 毫克。10年总生存率和无进展生存率为94.5%。在最后一次接触时,36 名 (49.3%) 患者继续 NIL(22 名患者每天两次 300 mg,14 名低剂量),18 名(24.7%)患者处于无治疗缓解(TFR),14 名(19.2%)正在接受其他酪氨酸激酶抑制剂治疗,4 名(5.5%)患者死亡。

图2:10年总生存率

10 年主要 (MMR) 和深度 (MR4) 分子反应率分别为 96% 和 83%。MMR 和 MR4 的中位时间分别为 6 个月和 18 个月。NIL 治疗的中位持续时间为 88 个月后,24 名 (32.9%) 患者在稳定的深层分子反应期间停止了 NIL。

图3:无治疗缓解。a.TFR尝试的累积发生率。73例患者中有24例在DMR稳定时尝试了TFR。 B. 24例稳定DMR停用NIL患者的无治疗生存。18例患者保持了TFR(17例DMR稳定,1例MMR稳定),6例患者失去了MMR,恢复了TKI治疗。

在这些患者中,估计的 2 年无治疗生存率为 72.6%。对所有入组患者计算的总 TFR 率为 24.7%(18/73 患者)。17 名患者 (23.3%),中位年龄为 69 岁,至少有一次动脉阻塞事件。

图4:动脉阻塞性事件的累积发生率。17例患者至少有动脉阻塞性事件。2名患者发生了多个事件(图中只报告了第一个事件)。

 

总的来说,该研究研究的长期结果表明,使用NIL一线能够在相关数量的患者中诱导稳定的TFR。然而,这种方法与AOEs是相关联的。通过根据年龄和个体心血管危险因素进行更准确的患者选择,以及随着时间的推移仔细调整剂量,能够获得TFR的CML患者的数量可能会增加,心血管并发症的数量可能会减少。

 

原始出处:

Gugliotta G, Castagnetti F, Breccia M, Levato L, Intermesoli T, D’Adda M, Salvucci M, Stagno F, Rege-Cambrin G, Tiribelli M, Martino B, Bocchia M, Cedrone M, Trabacchi E, Cavazzini F, Porretto F, Sorà F, Simula MP, Albano F, Soverini S, Foà R, Pane F, Cavo M, Saglio G, Baccarani M, Rosti G. Treatment-free remission in chronic myeloid leukemia patients treated front-line with nilotinib: 10-year follow-up of the GIMEMA CML 0307 study. Haematologica; https://doi.org/10.3324/haematol.2021.280175 [Early view].

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    2023-02-08 changfy
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    2023-02-09 habb
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    2022-04-17 杨海东

    坚持学习

    0

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    2022-04-15 fengyi812

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