Comparative Pharmacology
Head-to-head clinical analysis: LETERMOVIR versus LIVTENCITY.
Peer-Reviewed Evidence
Head-to-head clinical analysis: LETERMOVIR versus LIVTENCITY.
LETERMOVIR vs LIVTENCITY
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Letermovir is an antiviral agent that inhibits the human cytomegalovirus (CMV) terminase complex, specifically the pUL56 subunit, thereby preventing viral DNA processing and packaging.
LIVTENCITY (maribavir) is an inhibitor of the human cytomegalovirus (CMV) UL97 protein kinase, which is essential for viral DNA replication, encapsidation, and egress of mature virions from the infected cell. By blocking UL97 kinase activity, maribavir inhibits viral replication.
480 mg orally once daily (two 240 mg tablets).
200 mg orally once daily with food.
None Documented
None Documented
The terminal elimination half-life is approximately 12 hours (range 10–18 hours) in healthy subjects, allowing once-daily dosing.
Clinical Note
moderateLetermovir + Teriflunomide
"The serum concentration of Teriflunomide can be increased when it is combined with Letermovir."
Clinical Note
moderateLetermovir + Haloperidol
"The metabolism of Haloperidol can be decreased when combined with Letermovir."
Clinical Note
moderateLetermovir + Clotrimazole
"The metabolism of Clotrimazole can be decreased when combined with Letermovir."
Clinical Note
moderateLetermovir + Dronedarone
Terminal elimination half-life is approximately 20 hours, supporting once-daily dosing for sustained antiviral activity.
Letermovir is primarily eliminated via biliary/fecal excretion (approximately 93% of the dose recovered in feces, with <2% as unchanged drug) and renal excretion accounts for <7% (mostly as metabolites, <1% unchanged).
Primarily hepatobiliary excretion; unchanged drug and metabolites eliminated in feces (86%) and urine (14%).
Category C
Category C
Antiviral
Antiviral
"The metabolism of Dronedarone can be decreased when combined with Letermovir."