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<p>The co-occurrence of <i>JAK2</i> V617F mutations and the <i>BCR::ABL1</i> translocation in the same patient is rare, and the current standard treatment for aggressive myeloid blast phase chronic myeloid leukemia (CML-myeloid BP) with <i>JAK2</i> V617F mutations remains inadequate, particularly in transplant-ineligible patients. Asciminib, a first-in-class allosteric inhibitor of BCR::ABL1 kinase that specifically targets the ABL1 myristoyl pocket, has emerged as a novel alternative to standard tyrosine kinase inhibitor (TKI) therapy. Ropeginterferon alfa-2b (ropegIFNα2b) is a novel site-selective, monopegylated recombinant human IFN with long-term safety and efficacy in patients with polycythemia vera (PV). Here, we report a case of successful combination therapy with asciminib and ropegIFNα2b in a patient with CML-myeloid BP who had a long history of PV with <i>JAK2</i> V617F refractory to induction chemotherapy with several TKIs. The combination of asciminib and ropegIFNα2b is a promising new treatment option for these patients. </p>

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Successful treatment of myeloid blast phase chronic myelogenous leukemia with the JAK2 V617 F mutation by combination therapy with asciminib and ropeginterferon alfa-2b in an elderly patient

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年4月29日

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  • Satoko Oka,
  • Yuina Akagi,
  • Takaya Mituyoshi,
  • Kazuo Ono

摘要

The co-occurrence of JAK2 V617F mutations and the BCR::ABL1 translocation in the same patient is rare, and the current standard treatment for aggressive myeloid blast phase chronic myeloid leukemia (CML-myeloid BP) with JAK2 V617F mutations remains inadequate, particularly in transplant-ineligible patients. Asciminib, a first-in-class allosteric inhibitor of BCR::ABL1 kinase that specifically targets the ABL1 myristoyl pocket, has emerged as a novel alternative to standard tyrosine kinase inhibitor (TKI) therapy. Ropeginterferon alfa-2b (ropegIFNα2b) is a novel site-selective, monopegylated recombinant human IFN with long-term safety and efficacy in patients with polycythemia vera (PV). Here, we report a case of successful combination therapy with asciminib and ropegIFNα2b in a patient with CML-myeloid BP who had a long history of PV with JAK2 V617F refractory to induction chemotherapy with several TKIs. The combination of asciminib and ropegIFNα2b is a promising new treatment option for these patients.