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What is GS441524?

July 3, 2023

Latest company news about What is GS441524?
GS-441524 is a nucleoside analogue antiviral drug which was developed by Gilead Sciences. It is the main plasma metabolite of the antiviral prodrug remdesivir, and has a half-life of around 24 hours in human patients. Remdesivir and GS-441524 were both found to be effective in vitro against feline coronavirus strains responsible for feline infectious peritonitis (FIP), a lethal systemic disease affecting domestic cats.


GS-441524 nucleoside is phosphorylated by nucleoside kinases (probably adenosine kinase (ADK), which is the enzyme that phosphorylates the structurally similar ribavirin), and then phosphorylated again by nucleoside-diphosphate kinase (NDK) to the active nucleotide triphosphate form. The triphosphate of GS-441524, GS-443902, is also the bioactive anti-viral agent generated by remdesivir, but is generated by a different biochemical mechanism from the later.

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