ArticleInternational journal of hematology2025
Quizartinib with donor lymphocyte infusion for post-transplant relapse of FLT3-ITD-positive acute myeloid leukemia.
Article in International journal of hematology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Changes in donor lymphocyte infusion for relapsed patients post-hematopoietic stem cell transplantation: a 30-year single-center experience.Frontiers in immunology · 2025Article
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22 authors.
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Abstract
FMS-like tyrosine kinase 3-internal tandem duplication (FLT3-ITD)-positive acute myeloid leukemia (AML) has a poor prognosis, particularly with DNMT3A and NPM1 mutations. Quizartinib, a FLT3 inhibitor showing clinical benefit in FLT3-ITD-positive AML, has unclear safety and efficacy when combined with donor lymphocyte infusion (DLI). We report a case of FLT3-ITD-positive AML with DNMT3A and NPM1 mutations that relapsed after allogeneic hematopoietic stem cell transplantation (allo-HCT) and was treated with quizartinib and DLI. A 49-year-old man was diagnosed with AML. Target-sequencing analysis of the bone marrow revealed FLT3-ITD, DNMT3A R882, and NPM1 mutations. Although the patient achieved complete remission (CR) through induction therapy and received allo-HCT, he relapsed on day 71. Quizartinib was initiated on day 79, and the patient achieved CR with incomplete recovery on day 106. He did not desire a second allo-HCT and continued quizartinib in combination with DLI, which was started on day 156 and administered eight times every 2 to 3 months. The patient achieved hematological CR on day 163 and remained in molecular CR 3 years after allo-HCT without adverse effects. Quizartinib combined with DLI may be a feasible treatment for early relapse of FLT3-ITD-positive AML after allo-HCT, even with concurrent DNMT3A and NPM1 mutations.
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