Effects of tirzepatide, a novel dual GIP and GLP-1 receptor agonist, on lipid profiling in patients with type 2 diabetes

作者：Giacomo Ruotolo, Kenneth D. Roth, P.L. Milligan, Yong Lin, Jonathan M. Wilson, Valentina Pirro, Kevin L. Duffin, Axel Haupt · 发表于：European Heart Journal · 年份：2020 · DOI：10.1093/ehjci/ehaa946.3056 · 被引用次数：8 · 研究领域：Metabolomics and Mass Spectrometry Studies、Diet and metabolism studies、Diabetes, Cardiovascular Risks, and Lipoproteins

Abstract Background/Introduction In a Phase 2 trial, tirzepatide (TZP) dose-dependently reduced HbA1c, body weight and serum triglycerides in moderately obese type 2 diabetes (T2D) patients. Purpose To understand changes in fasting serum lipids with TZP, lipidomics profiling of multiple lipid classes was conducted. Methods Patients (n=314) were randomized to receive weekly subcutaneous TZP, dulaglutide, or placebo for 26 weeks. Shotgun lipidomic analysis was performed in positive electrospray using a Sciex Triple TOF 5600 mass spectrometer operating in MS/MSALL mode and sphingomyelin (SPM) data were acquired in positive electrospray TOF mode. Data were assessed using MMRM. Results At 26 weeks, total cholesterol esters (CE), phosphatidylcholines (PC) and phosphatidylinositols (PI) increased with placebo; dulaglutide treatment did not affect any lipid class (Table). With TZP 10 and 15 mg, total triacylglycerides (TAG), diacylglycerides (DAG), phosphatidylethanolamines (PE), PC and PI dose-dependently decreased at 4, 12 and 26 weeks, whereas total CE and phosphatidylserines (PS) levels did not change at any timepoint. At 26 weeks, individual, but not total, SPM and ceramide (Cer) changes were observed with TZP 15 mg. Most saturated, long chain SPM (14:0, 20:0, 21:0, 22:0, 23:0, 24:0) and Cer (22:0, 23:0, 24:0) were reduced by 8–16% and 14–20%, respectively. Conversely, unsaturated SPM (24:1,24:2) increased by 6.5% and 11.4%, and unsaturated glycosylated Cer 16:0 lactosyl and 24:...