Maribavir

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Maribavir
File:Maribavir.png
Systematic (IUPAC) name
(2S,3S,4R,5S)-2-[5,6-Dichloro-2-(propan-2-ylamino)benzimidazol-1-yl]-5-(hydroxymethyl)oxolane-3,4-diol
Identifiers
CAS Number 176161-24-3
ATC code J05AX10 (WHO)
PubChem CID 471161
Chemical data
Formula Cl2H19N3O4
Molar mass 376.24 g/mol
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Maribavir is an experimental oral antiviral drug candidate licensed by ViroPharma from GlaxoSmithKline in 2003 for the prevention and treatment of human cytomegalovirus disease in hematopoietic stem cell/bone marrow transplant patients. It showed promise in Phase II clinical trials and was granted fast track status, but failed to meet study goals in a Phase III trial.

A Phase II study with maribavir demonstrated that prophylaxis with maribavir displayed strong antiviral activity, as measured by statistically significant reduction in the rate of reactivation of CMV in recipients of hematopoietic stem cell/bone marrow transplants.[1] In an intent-to-treat analysis of the first 100 days after the transplant, the number of subjects who required pre-emptive anti-CMV therapy was statistically significantly reduced with maribavir compared to placebo.

ViroPharma conducted a Phase III clinical study to evaluate the prophylactic use for the prevention of cytomegalovirus disease in recipients of allogeneic stem cell transplant patients. In February 2009, ViroPharma announced that the Phase III study failed to achieve its goal, showing no significant difference between maribavir and a placebo in reducing the rate of CMV disease.[2]

References

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  1. Phase 2 Data Shows Maribavir Markedly Reduced Rate Of Cytomegalovirus Infection And Disease In Bone Marrow Transplant Patients, Medical News Today, Jun 2, 2008
  2. ViroPharma:Maribavir Phase III Study Missed Goal;Shares Plunge, CNN Money, February 09, 2009