Among antithrombotic agents, prasugrel, but not ticagrelor, is associated with reduced 30 day mortality in patients with ST-elevated myocardial infarction

  • Serebruany V
  • Cherepanov V
  • Tomek A
 et al. 
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Background ST-elevated myocardial infarction (STEMI) holds the highest early mortality among patients with acute coronary syndromes. Despite numerous claims of clinical benefits and superiority over clopidogrel, there are no head-to-head outcome randomized clinical trials (RCTs) directly comparing novel antithrombotic agents in STEMI. Moreover, since most regulatory approvals are based on a single RCT's results, their meta-analyses are rare to compare death rates. We analyzed the 30-day mortality in STEMI patients who underwent percutaneous coronary intervention (PCI) and were treated with antithrombotic agents compared to clopidogrel as a reference. Methods and results Altogether, 10 RCT's and 1 retrospective study with a total number of 26,658 STEMI patients were included. Random-effects model with Mantel-Heanszel weighting was used to pool outcomes into a meta-analysis. Therapy with clopidogrel was associated with 2.76% 30-day STEMI mortality which was similar to that of ticagrelor (2.6%; OR = 0.9395 [CI = 0.76 to 1.17; p = 0.58]), and for bivalirudin (2.8%; OR = 1.02 [CI = 0.82 to 1.27; p = 0.86]), but was slightly higher for heparin (3.0%; OR = 1.08 [CI = 0.86 to 1.35; p = 0.52]). There was a trend towards lower mortality after tirofiban (2.1%; OR = 0.77 [CI = 0.52 to 1.13; p = 0.20]), and cangrelor (1.7%; OR = 0.59 [CI = 0.29 to 1.20; p = 0.19]), although the sample size for both agents was woefully small. The only agent which offers a significant 30-day mortality benefit in STEMI was prasugrel with significant lowest 1.75% death rate (OR = 0.63 [CI = 0.46 to 0.86; p = 0.03]). Conclusions Among antithrombotic agents, prasugrel, but not ticagrelor, offers significant 30-day mortality benefit over clopidogrel in PCI-treated STEMI patients justifying short-term use in such a high-risk population.

Author-supplied keywords

  • Antithrombotics
  • Clinical trials
  • Clopidogrel
  • Mortality
  • Prasugrel
  • ST elevated myocardial infarction
  • Ticagrelor

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  • Victor L. Serebruany

  • Vasily Cherepanov

  • Ales Tomek

  • Moo Hyun Kim

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