Oral rapamycin after coronary bare-metal stent implantation to prevent restenosis: the Prospective, Randomized Oral Rapamycin in Argentina (ORAR II) Study

Journal of the American College of Cardiology
Alfredo E RodriguezORAR II Investigators

Abstract

The purpose of this study was to assess the role of oral rapamycin in decreased restenosis after bare metal stent implantation. Small observational studies suggest that the administration of oral rapamycin reduces angiographic restenosis after bare metal stent implantation. Between September 2003 and September 2004, 100 patients were randomized to either oral rapamycin (6-mg loading dose given 2.7 h before intervention followed by 3 mg/day for 14 days) plus diltiazem 180 mg/day or no therapy after the implantation of a coronary bare metal stent design. The primary study end point was incidence of angiographic binary restenosis and late loss at nine months. The secondary end points were target lesion revascularization, target vessel revascularization, and incidence of major adverse cardiovascular events at 1 year. Angiographic follow-up was completed in 87% of patients. In the rapamycin group, the drug was well tolerated (26% minor side effects) and was maintained in 96% of patients. At 9 months, the in-segment binary restenosis was reduced by 72% (11.6% rapamycin vs. 42.8% no-therapy group, p = 0.001) and the in-stent binary restenosis was reduced by 65% (12% rapamycin vs. 34.6% no-therapy group, p = 0.009). The in-segment late...Continue Reading

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