Obesity Clinical Trial
Official title:
Effect of Inhibition Soluble Epoxide Hydrolase on Insulin Sensitivity in Humans
The purpose of this study is to test how soluble epoxide hydrolase (sEH) inhibition with GSK2256294 affects tissue sEH activity and insulin sensitivity.
We will test the hypothesis that soluble epoxide hydrolase (sEH) inhibition with GSK2256294 improves insulin sensitivity using the gold-standard, hyperinsulinemic-euglycemic clamps, with stable isotope dilution to assess hepatic gluconeogenesis. We will assess insulin-stimulated vasodilation in the forearm using plethysmography and in the renal vasculature using para-aminohippurate (PAH, IND#133828) clearance. We will obtain adipose and muscle tissue before and after clamp to assess insulin signaling in these tissues. Subjects are randomized to treatment with the sEH inhibitor GSK2256294 (10mg/day) or matching placebo for one week. On the seventh day of drug treatment, subjects will report to the CRC in the morning after an overnight fast to undergo a hyperinsulinemic-euglycemic clamp with adipose tissue biopsies. During the Hyperinsulinemic-euglycemic clamp, insulin will be infused for 2 hours at low dose (20 mU/m2/min) and 2 hours at high dose (80 mU/m2/min) to assess insulin sensitivity. The Glucose Infusion Rate (GIR) will be adjusted to maintain glucose near 95 mg/dL. The average GIR during the final 30 minutes of the high dose period will be used as the measure of insulin sensitivity. After completion of the study day, subjects will undergo a seven-week washout from study drug and then receive the opposite drug for one week. On the seventh day of treatment they will report to the CRC after an overnight fast and repeat the study day protocol. ;
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