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- W2793264465 abstract "Methionine aminopeptidase 2 (MetAP2) inhibition is a promising approach to treating diabetes, obesity, and associated metabolic disorders. Beloranib, a MetAP2 inhibitor previously investigated for treatment of Prader-Willi syndrome, was associated with venous thrombotic adverse events likely resulting from drug effects on vascular endothelial cells (ECs). Here, we report the pharmacological characterization of ZGN-1061, a novel MetAP2 inhibitor being investigated for treatment of diabetes and obesity. Four weeks of subcutaneous administration of ZGN-1061 to diet-induced obese (DIO) insulin-resistant mice produced a 25% reduction in body weight, primarily due to reduced fat mass, that was comparable to beloranib. ZGN-1061 also produced improvements in metabolic parameters, including plasma glucose and insulin, and, in HepG2 cells, initiated gene changes similar to beloranib that support observed in vivo pharmacodynamics. In vitro studies in ECs demonstrated that ZGN-1061 effects on EC proliferation and coagulation proteins were greatly attenuated, or absent, relative to beloranib, due to lower intracellular drug concentrations, shorter half-life of inhibitor-bound MetAP2 complex, and reduced cellular enzyme inhibition. In dogs, ZGN-1061 was more rapidly absorbed and cleared, with a shorter half-life than beloranib. Unlike beloranib, ZGN-1061 did not increase coagulation markers in dogs, and ZGN-1061 had a greatly improved safety profile in rats relative to beloranib. In conclusion, ZGN-1061 and beloranib demonstrated similar efficacy in a mouse model of obesity, while ZGN-1061 had a markedly improved safety profile in multiple in vitro and in vivo models. The lower duration of exposure characteristic of ZGN-1061 is expected to provide a meaningfully enhanced clinical safety profile." @default.
- W2793264465 created "2018-03-29" @default.
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- W2793264465 date "2018-02-28" @default.
- W2793264465 modified "2023-10-13" @default.
- W2793264465 title "Preclinical Efficacy and Safety of the Novel Antidiabetic, Antiobesity MetAP2 Inhibitor ZGN-1061" @default.
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- W2793264465 doi "https://doi.org/10.1124/jpet.117.246272" @default.
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