alexa Efficacy of Favipiravir (T-705) in Rabies Postexposure Prophylaxis.
Neurology

Neurology

Journal of Neuroinfectious Diseases

Author(s): Yamada K, Noguchi K, Komeno T, Furuta Y, Nishizono A

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Abstract Rabies is a fatal encephalitis caused by rabies virus (RABV), and no antiviral drugs for RABV are currently available. We report for the first time the efficacy of favipiravir (T-705) against RABV in vitro and in vivo. T-705 produced a significant, 3-4 log10 reduction in the multiplication of street and fixed RABV strains in mouse neuroblastoma Neuro-2a cells, with half-maximal inhibitory concentrations of 32.4 µM and 44.3 µM, respectively. T-705 significantly improved morbidity and mortality among RABV-infected mice when orally administered at a dose of 300 mg/kg/day for 7 days, beginning 1 hour after inoculation. T-705 significantly reduced the rate of virus positivity in the brain. Furthermore, the effectiveness of T-705 was comparable to that of equine rabies virus immunoglobulin for postexposure prophylaxis. Collectively, our results suggest that T-705 is active against RABV and may serve as a potential alternative to rabies immunoglobulin in rabies postexposure prophylaxis. © The Author 2015. Published by Oxford University Press for the Infectious Diseases Society of America.
This article was published in J Infect Dis and referenced in Journal of Neuroinfectious Diseases

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