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http://dx.doi.org/10.1182/bloodadvances.2021005637DOI Listing

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Although post-transplant cyclophosphamide (PTCY)-based prophylaxis has become a widely adopted strategy for preventing graft-versus-host disease (GVHD) in 9 out of 10 HLA-mismatched unrelated donors (MMUDs), allogeneic hematopoietic cell transplants (allo-HCTs), data on the safety and efficacy of PTCY in this setting remain limited. This single-center study investigates the outcomes of 94 adults with hematological malignancies undergoing MMUD allo-HCT with PTCY and tacrolimus (Tac) (PTCY-Tac) between 2014 and 2023. The median age was 53 years, and 60.

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Letermovir for Prevention of Recurrent Cytomegalovirus in High-Risk Allogeneic Hematopoietic Cell Transplantation Recipients.

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December 2024

Infectious Diseases Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York; Adult Bone Marrow Transplantation Service, Memorial Sloan Kettering Cancer Center, New York, New York. Electronic address:

We evaluated letermovir (LTV) for secondary prophylaxis for cytomegalovirus (CMV) in allogeneic hematopoietic cell transplant recipients (HCT) at high-risk for CMV recurrence. This open-label study was conducted at Memorial Sloan Kettering Cancer Center and the University of Minnesota. Patients with clinically significant CMV infection (cs-CMVi) and ≥1 high-risk criteria for CMV who achieved viral suppression with standard CMV antivirals received LTV secondary prophylaxis for up to 14 weeks.

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Article Synopsis
  • Cord blood transplantation (CBT) has a high risk of cytomegalovirus (CMV) infection, and Letermovir (LTV) is an effective drug for preventing CMV reactivation after CBT.
  • A study involving 79 adult patients revealed that those who received LTV had significantly lower rates of CMV reactivation compared to those who did not, with 11.1% versus 82.4% at day 100 and 45.3% versus 82.4% at one year.
  • Despite the lower reactivation rates, approximately 34.2% of patients experienced late CMV reactivation after stopping LTV, suggesting the need for ongoing monitoring and potential extension of LTV use
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Letermovir prophylaxis for cytomegalovirus is associated with risk of post-transplant lymphoproliferative disorders after haploidentical stem cell transplantation.

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November 2024

Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China; Peking-Tsinghua Center for Life Sciences, Beijing.

Not available.

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