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CMV terminase inhibitor

Letermovir

Brand names: Prevymis

Adult dose

Dose: 480mg PO/IV OD (240mg with ciclosporin) post-allogeneic HSCT
Route: PO/IV
Frequency: OD

Clinical pearls

  • CMV prophylaxis after allogeneic stem cell transplant
  • Specialist haematology

Contraindications

  • Concurrent pimozide/ergot alkaloids/dabigatran
  • Pitavastatin/simvastatin (with ciclosporin)

Side effects

  • GI upset
  • Hypersensitivity
  • Headache
  • Hepatotoxicity

Interactions

  • P-gp/OATP/CYP3A4 substrates — many
  • Voriconazole (lowered levels — increase voriconazole)
  • Statins

Monitoring

  • CMV PCR
  • LFTs

Reference: BNF; NICE TA591; SmPC; https://bnf.nice.org.uk/drugs/letermovir/. Verify against your local formulary and the latest BNF before prescribing.

Related

Curated clinical cross-links plus same-class fallbacks.