Diabetes Metab J.  2023 Nov;47(6):818-825. 10.4093/dmj.2023.0171.

The Efficacy and Safety of Moderate-Intensity Rosuvastatin with Ezetimibe versus High-Intensity Rosuvastatin in High Atherosclerotic Cardiovascular Disease Risk Patients with Type 2 Diabetes Mellitus: A Randomized, Multicenter, Open, Parallel, Phase 4 Study

  • 1Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea
  • 2Department of Internal Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
  • 3Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea
  • 4Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul,
  • 5Division of Endocrinology and Metabolism, Department of Internal Medicine, St. Vincent’s Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea
  • 6Department of Internal Medicine, Daegu Catholic University School of Medicine, Daegu, Korea
  • 7Department of Internal Medicine, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
  • 8Clinical Operation Team, Yuhan Corporation, Seoul, Korea


To investigate the efficacy and safety of moderate-intensity rosuvastatin/ezetimibe combination compared to highintensity rosuvastatin in high atherosclerotic cardiovascular disease (ASCVD) risk patients with type 2 diabetes mellitus (T2DM).
This study was a randomized, multicenter, open, parallel phase 4 study, and enrolled T2DM subjects with an estimated 10-year ASCVD risk ≥7.5%. The primary endpoint was the low-density lipoprotein cholesterol (LDL-C) change rate after 24-week rosuvastatin 10 mg/ezetimibe 10 mg treatment was non-inferior to that of rosuvastatin 20 mg. The achievement proportion of 10-year ASCVD risk <7.5% or comprehensive lipid target (LDL-C <70 mg/dL, non-high-density lipoprotein cholesterol <100 mg/dL, and apolipoprotein B <80 mg/dL) without discontinuation, and several metabolic parameters were explored as secondary endpoints.
A hundred and six participants were assigned to each group. Both groups showed significant reduction in % change of LDL-C from baseline at week 24 (–63.90±6.89 vs. –55.44±6.85, combination vs. monotherapy, p=0.0378; respectively), but the combination treatment was superior to high-intensity monotherapy in LDL-C change (%) from baseline (least square [LS] mean difference, –8.47; 95% confidence interval, –16.44 to –0.49; p=0.0378). The combination treatment showed a higher proportion of achieved comprehensive lipid targets rather than monotherapy (85.36% vs. 62.22% in monotherapy, p=0.015). The ezetimibe combination significantly improved homeostasis model assessment of β-cell function even without A1c changes (LS mean difference, 17.13; p=0.0185).
In high ASCVD risk patients with T2DM, the combination of moderate-intensity rosuvastatin and ezetimibe was not only non-inferior but also superior to improving dyslipidemia with additional benefits compared to high-intensity rosuvastatin monotherapy.


Cardiovascular diseases; Diabetes mellitus, type 2; Drug therapy, combination; Ezetimibe; Rosuvastatin calcium


  • Fig. 1. Primary endpoint. Comparison of the change of low-density lipoprotein cholesterol (LDL-C) rate (%) at 24 weeks. (A) Perprotocol set (PPS) and (B) full analysis set (FAS). LS, least square; R, rosuvastatin 20 mg; R/E, rosuvastatin 10 mg and ezetimibe 10 mg; CI, confidence interval. aP<0.05.

  • Fig. 2. Secondary endpoints. (A) Changes of lipid profiles after 24 weeks. (B) Changes of homeostatic model assessment index. LDL-C, low-density lipoprotein cholesterol; LS, least square; R, rosuvastatin 20 mg; R/E, rosuvastatin 10 mg and ezetimibe 10 mg; CI, confidence interval; HDL-C, high-density lipoprotein cholesterol; ApoB, apolipoprotein B; HOMA-IR, homeostasis model assessment of insulin resistance; HOMA-β, homeostasis model assessment of β-cell function. aP<0.05.


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