Effect of very high-intensity statin therapy on regression of coronary atherosclerosis: the ASTEROID trial

JAMA : the Journal of the American Medical Association
Steven E NissenASTEROID Investigators

Abstract

Prior intravascular ultrasound (IVUS) trials have demonstrated slowing or halting of atherosclerosis progression with statin therapy but have not shown convincing evidence of regression using percent atheroma volume (PAV), the most rigorous IVUS measure of disease progression and regression. To assess whether very intensive statin therapy could regress coronary atherosclerosis as determined by IVUS imaging. Prospective, open-label blinded end-points trial (A Study to Evaluate the Effect of Rosuvastatin on Intravascular Ultrasound-Derived Coronary Atheroma Burden [ASTEROID]) was performed at 53 community and tertiary care centers in the United States, Canada, Europe, and Australia. A motorized IVUS pullback was used to assess coronary atheroma burden at baseline and after 24 months of treatment. Each pair of baseline and follow-up IVUS assessments was analyzed in a blinded fashion. Between November 2002 and October 2003, 507 patients had a baseline IVUS examination and received at least 1 dose of study drug. After 24 months, 349 patients had evaluable serial IVUS examinations. All patients received intensive statin therapy with rosuvastatin, 40 mg/d. Two primary efficacy parameters were prespecified: the change in PAV and the ch...Continue Reading

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