Pharmacology and Safety of Glycerol Phenylbutyrate in Healthy Adults and Adults with Cirrhosis

Phenylbutyric acid (PBA), which is approved for treatment of urea cycle disorders (UCDs) as sodium phenylbutyrate (NaPBA), mediates waste nitrogen excretion via combination of PBA-derived phenylacetic acid with glutamine to form phenylactylglutamine (PAGN) that is excreted in urine. Glycerol phenylbutyrate (GPB), a liquid triglyceride pro-drug of PBA, containing no sodium and having favorable palatability, is being studied for treatment of hepatic encephalopathy (HE).

Author(s): Brendan McGuire, Igor Zupanets, Mark Lowe, Xunjun Xiao, Vasyliy Syplyviy, Jonathan Monteleone, Sharron Gargosky, Klara Dickinson, Antonia Martinez, Masoud Mokhtarani, Bruce Scharschmidt

Year: June 1, 2010

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