RT Journal Article SR Electronic T1 MRI-measured regression of carotid atherosclerosis induced by statins with and without niacin in a randomised controlled trial: the NIA plaque study JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1675 OP 1680 DO 10.1136/heartjnl-2013-303926 VO 99 IS 22 A1 Christopher T Sibley A1 Andrea L Vavere A1 Ilan Gottlieb A1 Christopher Cox A1 Matthew Matheson A1 Amy Spooner A1 Gustavo Godoy A1 Veronica Fernandes A1 Bruce A Wasserman A1 David A Bluemke A1 Joao A C Lima YR 2013 UL http://heart.bmj.com/content/99/22/1675.abstract AB Objective To evaluate the benefit of niacin in addition to statin therapy on plaque regression among older individuals with established atherosclerosis. Design Randomised, controlled, double-blind clinical trial. Setting University outpatient center. Patients 145 patients older than 65 years, half of them older than 75 years of age, with established atherosclerosis were enrolled. Interventions Participants received either extended release niacin (1500 mg daily) or placebo in addition to statin therapy to reach their National Cholesterol Education Program-defined low density lipoprotein (LDL) cholesterol target. Main Outcome Measures The primary endpoint was reduction in the wall volume of the internal carotid artery (ICA) measured by MRI. Results After 18 months, high density lipoprotein cholesterol was higher with statins plus niacin compared with statins alone (1.6±0.4 vs 1.4±0.4 mmol/L p<0.001). Both groups had significant decreases in the main outcome measure of ICA wall volume, which regressed at 0.5%/month (SEM 0.2, p=0.004) in the statins plus placebo group and at 0.7%/month in the statins plus niacin group (SEM 0.2, p<0.001). There was no difference in the rate of regression between groups (p=0.49). Conclusions Treatment with statin therapy to presently recommended LDL levels, with or without niacin, resulted in significant atherosclerosis reduction.