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  • Title: MBX-8025, a novel peroxisome proliferator receptor-delta agonist: lipid and other metabolic effects in dyslipidemic overweight patients treated with and without atorvastatin.
    Author: Bays HE, Schwartz S, Littlejohn T, Kerzner B, Krauss RM, Karpf DB, Choi YJ, Wang X, Naim S, Roberts BK.
    Journal: J Clin Endocrinol Metab; 2011 Sep; 96(9):2889-97. PubMed ID: 21752880.
    Abstract:
    CONTEXT: Preclinical and clinical studies suggest that peroxisome proliferator-activated receptor (PPAR)-δ agonists favorably affect multiple metabolic parameters that are otherwise proatherogenic, many that are not optimally managed with statins alone. OBJECTIVE: The aim of this study was to evaluate the effects of MBX-8025 (a novel PPAR-δ agonist) on lipid and other metabolic parameters associated with increased atherosclerotic risk, administered alone and in combination with atorvastatin. DESIGN AND SETTING: This was a randomized, double-blind, placebo-controlled, parallel group proof-of-concept study conducted at 30 U.S. research sites. PARTICIPANTS: This study evaluated 181 overweight men and women with mixed dyslipidemia. INTERVENTION(S): Subjects were administered once daily placebo, atorvastatin 20 mg, or MBX-8025 at 50 or 100 mg alone or combined with atorvastatin for 8 wk. MAIN OUTCOME MEASURES: The main efficacy measures included change from baseline in apolipoprotein B-100, lipid levels, high-sensitivity C-reactive protein, and additional metabolic parameters, as well as the effect on the metabolic syndrome and LDL particle size. RESULTS: Compared to placebo, MBX-8025 alone and in combination with atorvastatin significantly (P < 0.05) reduced apolipoprotein B-100 20-38%, LDL 18-43%, triglycerides 26-30%, non-high-density lipoprotein cholesterol 18-41%, free fatty acids 16-28%, and high-sensitivity C-reactive protein 43-72%; it raised high-density lipoprotein cholesterol 1-12% and also reduced the number of patients with the metabolic syndrome and a preponderance of small LDL particles. MBX-8025 was safe and generally well-tolerated. MBX-8025 also reduced liver enzyme levels. CONCLUSION: MBX-8025, a novel PPAR-δ agonist, favorably affected multiple metabolic parameters with and without atorvastatin. A more complete understanding of MBX-8025 requires a larger future study.
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