The purpose of this study is to evaluate the efficacy of GFT505 80mg in reducing serum Triglycerides (TG) and increasing High Density Lipoprotein Cholesterol (HDL-C) levels compared with placebo in atherogenic dyslipidaemic patients with abdominal obesity, and to assess the tolerability and safety of once-a-day administrations of oral doses of GFT505 during 28 days.