Letermovir for prophylaxis of cytomegalovirus in allogeneic hematopoietic stem cell recipients

Drugs of Today
J C ChoS C Locke

Abstract

Letermovir is a new antiviral agent with activity against human cytomegalovirus (CMV). Letermovir works as an inhibitor of the CMV DNA terminase complex which further inhibits viral DNA processing and packaging. Letermovir is available both orally and intravenously in 480-mg and 240-mg dosage forms, and is approved for use in the prophylaxis of CMV infection and disease in CMV-seropositive recipients of allogeneic hematopoietic stem cell transplant (HSCT) over the age of 18. The recommended dose is 480 mg p.o./i.v. once daily initiated between day 0 through day 28 post-allogeneic HSCT and continued through day 100 post-transplantation; the dose should be reduced to 240 mg daily if coadministered with cyclosporine. Letermovir is metabolized primarily by hepatic OATP1B1/3 and is not recommended for patients with severe hepatic impairment (Child-Pugh class C). Renal dosage adjustments are not warranted until a creatinine clearance (CrCl) of less than 10 mL/min; however, serum creatinine should be monitored when administered to patients with a CrCl of less than 50 mL/min. Cross-resistance with other useful antiviral agents in the treatment of CMV has not been observed. Additionally, letermovir is active against DNA polymerase inhib...Continue Reading

Citations

Jul 10, 2019·Expert Opinion on Pharmacotherapy·Giuseppe GernaFausto Baldanti

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