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Management of adult patients with CMML undergoing allo-HCT: recommendations from the EBMT PH&G Committee.

Francesco OnidaNico GagelmannYves ChalandonGuido KobbeMarie RobinArgiris SymeonidisTheo M de WitteRaphaël A ItzyksonMadlen JentzschUwe PlatzbeckerValeria SantiniGuillermo F SanzChristoph ScheidEric SolaryPeter ValentRaffaella GrecoIsabel Sánchez-OrtegaIbrahim Yakoub AghaLisa Pleyer
Published in: Blood (2024)
Chronic myelomonocytic leukemia (CMML) is a heterogeneous disease presenting with either myeloproliferative or myelodysplastic features. Allogeneic hematopoietic cell transplantation (allo-HCT) remains the only potentially curative option, but the inherent toxicity of this procedure makes the decision to proceed to allo-HCT challenging, particularly as patients with CMML are mostly older and comorbid. Therefore, the decision between a non-intensive treatment approach and allo-HCT represents a delicate balance, especially since prospective randomized studies are lacking and retrospective data in the literature is conflicting. International consensus on the selection of patients and the ideal timing of allo-HCT specifically in CMML could not be reached in international recommendations published six years ago. Since then, new, CMML-specific data have been published. The European Society for Blood and Marrow Transplantation (EBMT) Practice Harmonization and Guidelines Committee assembled a panel of experts in the field to provide the first best practice recommendations on the role of allo-HCT specifically in CMML. Recommendations were based on the results of an international survey, a comprehensive review of the literature, and expert opinions on the subject, after structured discussion and circulation of recommendations. Algorithms for patient selection, timing of allo-HCT during the course of the disease, pre-transplant strategies, allo-HCT modality, as well as post-transplant management for patients with CMML were outlined.
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