Letermovir for CMV Prevention After Lung Transplantation

Participants who are CMV R+ will receive LET prophylaxis for 6 months, and participants who are CMV D+/R- will receive LET prophylaxis for 12 months. The duration of prophylaxis is per current standard of care. LET will be administered at a dose of 480 mg IV or oral once daily. IV administration will occur only for those patients unable to swallow tablets. If LET is co-administered with cyclosporin A (CsA), the dosage of LET should be decreased to 240 mg once daily. All patients will be followed for 12 weeks after completion of LET for the occurrence of CMV infection or disease after prophylaxis. Participants on this protocol will receive acyclovir 400 mg orally BID for the duration of LET therapy for herpes simplex virus and varicella zoster virus prophylaxis.

Historical controls will have received CMV prophylaxis with valganciclovir for 6 months for CMV R+ and for 12 months for CMV D+/R-.