Prasugrel and Ticagrelor in Patients with Drug-Eluting Stents and Kidney Failure.

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Prasugrel and ticagrelor have superior efficacy compared with clopidogrel in moderate CKD but have not been studied in kidney failure. The study objective is to determine the effectiveness and safety of prasugrel and ticagrelor in kidney failure.This retrospective cohort study used United States Renal Data System data from 2012 to 2015. We identified all patients on dialysis who received a drug-eluting stent and were alive at 90 days after stent implantation. Inverse probability-weighted Cox proportional hazard models were used. Weights were estimated with propensity scores for multiple treatments.This cohort included 6648 patients on clopidogrel, 621 on prasugrel, and 449 on ticagrelor. A total of 3279 primary composite (cardiovascular death, myocardial infarction, or stroke) and 2120 clinically relevant bleeding events were observed. The incidence of the primary composite outcome of cardiovascular death, myocardial infarction, or stroke at 12 months was similar across the three treatment groups. The absolute event rate in the unweighted cohort was 144 events per 100 patient-years for clopidogrel, 126 for prasugrel, and 161 for ticagrelor. For prasugrel versus clopidogrel, the weighted hazard ratio was 0.96 (95% confidence interval, 0.82 to 1.11; P=0.58). For ticagrelor versus clopidogrel, the hazard ratio was 1.00 (95% confidence interval, 0.83 to 1.20; P=0.98). A numerically higher incidence of clinically relevant bleeding was seen with prasugrel or ticagrelor compared with clopidogrel (weighted hazard ratio, 1.15; 95% confidence interval, 0.95 to 1.38 and weighted hazard ratio, 1.13; 95% confidence interval, 0.91 to 1.40, respectively).Prasugrel or ticagrelor does not seem to be associated with significant benefits compared with clopidogrel in patients with kidney failure treated with drug-eluting stents.This article contains a podcast at https://www.asn-online.org/media/podcast/CJASN/2021_04_02_CJN12120720.mp3.

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Authors: Thomas A Mavrakanas, Omer Kamal, David M Charytan