Journal of clinical lipidology · 2008
Ezetimibe/simvastatin compared with atorvastatin or rosuvastatin in lowering to specified levels both LDL-C and each of five other emerging risk factors for coronary heart disease: Non-HDL-cholesterol, TC/HDL-C, apolipoprotein B, apo-B/apo-A-I, or C-reactive protein.
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Davidson Michael H, Abate Nicola, Ballantyne Christie M, Catapano Alberico L, Xu Xia, Lin Jianxin, Rosenberg Elizabeth, Tershakovec Andrew M
Аннотация
BACKGROUND: Recent evidence suggests that in addition to low-density lipoprotein cholesterol (LDL-C), apolipoprotein B (Apo-B), non-high-density lipoprotein cholesterol (non-HDL-C), some lipoprotein ratios, and C-reactive protein (CRP) are predictive of coronary heart disease (CHD) risk. This post-hoc analysis of two trials comparing single-tablet ezetimibe/simvastatin (EZE/SIMVA) to atorvastatin (ATORVA) or rosuvastatin (ROSUVA) evaluates the proportion of patients attaining LDL-C <70 mg/dL and specific levels of these emerging risk factors.
METHODS: These were double-blind, 6-week, parallel group trials of hypercholesterolemic patients randomized to milligram equivalent doses of ATORVA versus EZE 10 mg/SIMVA, or to usual starting, next higher, and maximum doses of ROSUVA versus EZE/SIMVA. This analysis examined the percent of patients in prespecified dose comparisons and overall achievement of LDL-C <70 mg/dL and/or Apo-B <90 mg/dL, total cholesterol (TC)/HDL-C <4.0, or Apo-B/Apo-A-I <0.7 among all treated patients, non-HDL-C <100 mg/dL among patients with baseline triglycerides ≥200 mg/dL, or CRP <2.0 mg/L among patients with baseline CRP ≥2.0 mg/L.
RESULTS: Within each trial, baseline characteristics were similar among groups. At all dose comparisons, significantly more patients receiving EZE/SIMVA reached LDL-C <70 mg/dL and achieved both LDL-C <70 mg/dL and either Apo-B <90 mg/dL, TC/HDL-C <4.0, or Apo-B/Apo-A-I <0.7 (EZE/SIMVA versus ATORVA) compared to ATORVA and ROSUVA. For most dose comparisons, significantly more patients receiving EZE/SIMVA attained both LDL-C <70 mg/dL and either non-HDL-C <100 mg/dL or CRP <2 mg/L compared to ATORVA or ROSUVA.
CONCLUSION: The greater efficacy related to changes in blood lipids of EZE/SIMVA compared with both ATORVA and ROSUVA extends to changes in many emerging risk factors. Ultimate clinical implications of these findings still need to be defined.
METHODS: These were double-blind, 6-week, parallel group trials of hypercholesterolemic patients randomized to milligram equivalent doses of ATORVA versus EZE 10 mg/SIMVA, or to usual starting, next higher, and maximum doses of ROSUVA versus EZE/SIMVA. This analysis examined the percent of patients in prespecified dose comparisons and overall achievement of LDL-C <70 mg/dL and/or Apo-B <90 mg/dL, total cholesterol (TC)/HDL-C <4.0, or Apo-B/Apo-A-I <0.7 among all treated patients, non-HDL-C <100 mg/dL among patients with baseline triglycerides ≥200 mg/dL, or CRP <2.0 mg/L among patients with baseline CRP ≥2.0 mg/L.
RESULTS: Within each trial, baseline characteristics were similar among groups. At all dose comparisons, significantly more patients receiving EZE/SIMVA reached LDL-C <70 mg/dL and achieved both LDL-C <70 mg/dL and either Apo-B <90 mg/dL, TC/HDL-C <4.0, or Apo-B/Apo-A-I <0.7 (EZE/SIMVA versus ATORVA) compared to ATORVA and ROSUVA. For most dose comparisons, significantly more patients receiving EZE/SIMVA attained both LDL-C <70 mg/dL and either non-HDL-C <100 mg/dL or CRP <2 mg/L compared to ATORVA or ROSUVA.
CONCLUSION: The greater efficacy related to changes in blood lipids of EZE/SIMVA compared with both ATORVA and ROSUVA extends to changes in many emerging risk factors. Ultimate clinical implications of these findings still need to be defined.