HU6

HU6 is a prodrug of the mitochondrial uncoupler 2,4-dinitrophenol (DNP) that is intended to "minimize the rapid absorption and high peak blood concentrations of DNP to provide a wider therapeutic index and improve safety." Developed by Rivus Pharmaceuticals, the drug is tested to reduce weight and liver fat in humans with risk factors for metabolic dysfunction-associated steatohepatitis. In a phase 2a trial, the higher dosage levels reduced liver fat on average by more than 30 percent and also reduced body weight significantly. A phase 2b trial was launched in late 2023.