Author/Authors :
Jerome L. Fleg، نويسنده , , Mihriye Mete، نويسنده , , Barbara V. Howard، نويسنده , , Jason G. Umans، نويسنده , , Mary J. Roman، نويسنده , , Robert E. Ratner، نويسنده , , Angela Silverman، نويسنده , , James M. Galloway، نويسنده , , Jeffrey A. Henderson، نويسنده , , Matthew R. Weir، نويسنده , , Charlton Wilson، نويسنده , , Mario Stylianou، نويسنده , , Wm. James Howard، نويسنده ,
Abstract :
Objectives
This secondary analysis from the SANDS (Stop Atherosclerosis in Native Diabetics Study) trial examines the effects of lowering low-density lipoprotein cholesterol (LDL-C) with statins alone versus statins plus ezetimibe on common carotid artery intima-media thickness (CIMT) in patients with type 2 diabetes and no prior cardiovascular event.
Background
It is unknown whether the addition of ezetimibe to statin therapy affects subclinical atherosclerosis.
Methods
Within an aggressive group (target LDL-C ≤70 mg/dl; non–high-density lipoprotein cholesterol ≤100 mg/dl; systolic blood pressure ≤115 mm Hg), change in CIMT over 36 months was compared in diabetic individuals >40 years of age receiving statins plus ezetimibe versus statins alone. The CIMT changes in both aggressive subgroups were compared with changes in the standard subgroups (target LDL-C ≤100 mg/dl; non–high-density lipoprotein cholesterol ≤130 mg/dl; systolic blood pressure ≤130 mm Hg).
Results
Mean (95% confidence intervals) LDL-C was reduced by 31 (23 to 37) mg/dl and 32 (27 to 38) mg/dl in the aggressive group receiving statins plus ezetimibe and statins alone, respectively, compared with changes of 1 (−3 to 6) mg/dl in the standard group (p < 0.0001) versus both aggressive subgroups. Within the aggressive group, mean CIMT at 36 months regressed from baseline similarly in the ezetimibe (−0.025 [−0.05 to 0.003] mm) and nonezetimibe subgroups (−0.012 [−0.03 to 0.008] mm) but progressed in the standard treatment arm (0.039 [0.02 to 0.06] mm), intergroup p < 0.0001.
Conclusions
Reducing LDL-C to aggressive targets resulted in similar regression of CIMT in patients who attained equivalent LDL-C reductions from a statin alone or statin plus ezetimibe. Common carotid artery IMT increased in those achieving standard targets. (Stop Atherosclerosis in Native Diabetics Study [SANDS]; NCT00047424)
