EIDD-2801 is an orally active, 5′-isopropylester prodrug form of the antiviral ribonucleoside analog N4-hydroxycytidine (NHC, EIDD-1931) with known anti-viral activity against SARS-CoV, SARS-CoV-2, RSV, influenza A & B (IAV & IBV), HCV, pestivirus, bovine viral diarrhoea virus (BVDV), Ebola (EBOV), Chikungunya (CHIKV), venezuelan equine encephalitis (VEEV). EIDD-2801 is efficiently hydrolyzed to NHC in vivo, being more orally bioavailable than NHC in nonhuman primates and ferrets, while maintaining similar oral bioavailability as NHC in mice. EIDD-2801 displays in vivo efficacy against pandemic and seasonal IAV strains in ferrets (lowest ED = 2.3 and 7 mg/kg b.i.d. p.o., respectively).
Translational research : the journal of laboratory and clinical medicine, 218, 16-28 (2020-01-17)
Seasonal influenza viruses cause major morbidity and mortality worldwide, threatening in particular older adults and the immunocompromised. Two classes of influenza therapeutics dominate current disease management, but both are compromised by pre-existing or rapidly emerging viral resistance. We have recently
Influenza viruses constitute a major health threat and economic burden globally, frequently exacerbated by preexisting or rapidly emerging resistance to antiviral therapeutics. To address the unmet need of improved influenza therapy, we have created EIDD-2801, an isopropylester prodrug of the
Coronaviruses (CoVs) traffic frequently between species resulting in novel disease outbreaks, most recently exemplified by the newly emerged SARS-CoV-2, the causative agent of COVID-19. Here, we show that the ribonucleoside analog β-d-N4-hydroxycytidine (NHC; EIDD-1931) has broad-spectrum antiviral activity against SARS-CoV-2
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