[在患有CD19阳性混合表型爆发期的慢性髓性白血病患者中,顺序用布利纳马布/波纳提尼布治疗成功]
Masanori Aoki1, Tomoya Maeda2, Maho Ishikawa2
1Clinical Laboratory, Saitama Medical University International Medical Center.
[Rinsho ketsueki] The Japanese journal of clinical hematology
|February 12, 2025
概括
本案例研究呈现了一种罕见的混合表型急性白血病病例,作为爆发期慢性髓性白血病的初始表现. 交替使用布利纳图莫马布和波纳提尼布显示为干细胞移植的桥梁.
科学领域:
- 血液学 血液学 血液学
- 在瘤学瘤学.
- 分子生物学分子生物学
背景情况:
- 混合表型急性白血病 (MPAL) 是一种罕见的慢性骨髓性白血病在爆发期 (CML-BP) 的初始表现.
- 从临床上来说,区分CML-BP与MPAL与de novo BCR::ABL1-阳性MPAL是具有挑战性的.
- 对于这种罕见的疾病缺乏既定的治疗方案.
研究的目的:
- 报告一个CML-BP病例与MPAL (B/骨髓层) 成功治疗.
- 评估ponatinib和blinatumomab在治疗这种罕见表现的疗效.
- 评估顺序疗法的潜力,作为通往全原干细胞移植的桥梁.
主要方法:
- 基于临床过程,治疗反应和CML发现的CML-BP与MPAL的诊断.
- 治疗始于ponatinib,其次是连续的blinatumomab和ponatinib.
- 由于CD19在爆发体上的表达,进一步给予布利纳图莫马布.
- 在深度分子响应期间进行的与HLA匹配的全源干细胞移植.
主要成果:
- 波纳提尼布治疗实现了主要的分子反应.
- 连续的布利纳图莫马布和波纳替尼导致了深度分子反应.
- 患者在移植后保持了深度分子反应,并继续治疗ponatinib.
- 取得了成功的桥梁到全原干细胞移植.
结论:
- 替换布利纳图马布和波纳替尼布可能是CD19阳性混合表型CML-BP的有效策略.
- 这种治疗方法可以作为一座桥梁,通向全原干细胞移植.
- 这一案例突显出一种罕见且具有挑战性的血液性恶性瘤的潜在治疗途径.
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