Westlake Pharmaceutical (Hangzhou) Co. Ltd. has prepared and tested new 3C-like proteinase (3CLpro; Mpro; nsp5) inhibitors reported to be useful for the treatment of coronavirus acute respiratory syndrome.
Phase III Scorpio-PEP study results showed Shionogi & Co. Ltd.’s oral antiviral ensitrelvir fumaric acid (Xocova) reduced risk of symptomatic COVID-19 infection in subjects who were exposed to the virus by infected household members.
Phase III Scorpio-PEP study results showed Shionogi & Co. Ltd.’s oral antiviral ensitrelvir fumaric acid (Xocova) reduced risk of symptomatic COVID-19 infection in subjects who were exposed to the virus by infected household members.
One of the challenges associated with COVID-19 has been an increase of secondary infections, including fungal infections. These coinfections can hinder treatment efficacy and increase illness severity.
Shares of Novavax Inc. (NASDAQ:NVAX) dropped nearly 20% Oct. 16 to close at $10.15 after the company reported a serious adverse event had prompted a U.S. FDA clinical hold for its COVID-19-influenza combination and standalone flu vaccine candidates.
The COVID-19 pandemic pushed the urgency for effective antiviral drugs against coronaviruses. Researchers from Europe conducted machine learning and in vitro validation experiments for the identification of potential antiviral drugs effective against coronaviruses.
Tohoku University has disclosed 3C-like proteinase (3CLpro; Mpro; nsp5) (SARS-CoV-2; COVID-19 virus) inhibitors reported to be useful for the treatment of viral infections and inflammatory disorders.
In work at Shanghai Curegene Pharmaceutical Co. Ltd., synthesis and optimization of a series of SARS-CoV-2 3CL protease (3CLpro, Mpro) inhibitors led to the identification of compounds [I], [II] and [III] as lead candidates suitable for further evaluation, based on their enzymatic IC50s (14, 12 and 8.6 nM, respectively), cellular EC50s (36, 26 and 52 nM, respectively) and human liver microsome (HLM) stability.
