Prevymis (letermovir) - Merck (MSD)
Model-based assessment of letermovir pharmacokinetics in allogeneic haematopoietic stem cell transplant recipients. (PubMed, J Antimicrob Chemother) - Jan 6, 2026 - "Our findings support the overall tolerability and efficacy of letermovir in allo-HSCT recipients. Discrepancies between observed and simulated Cmin suggest that the phase III model may underestimate letermovir exposure, underscoring the importance of incorporating real-world data to improve characterization of letermovir pharmacokinetics. Conversely, the decreased exposure observed in a small cohort of GI GvHD patients may compromise efficacy and warrants further investigations to elucidate the impact of GI complications on letermovir exposure." 
Journal • PK/PD data • Retrospective data • Bone Marrow Transplantation • Gastrointestinal Disorder • Graft versus Host Disease • Immunology • Transplantation
http://www.ncbi.nlm.nih.gov/pubmed/41491673
 
Chrisoula Tahtsidou; Hartwig Klinker; Nora Isberner; Oliver Scherf-Clavel; Sabrina Kraus
 
Jan 6, 2026
 
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