Real-life data for major adverse cardiac events in patients with ST-elevation myocardial infarction prasugrel versus

M H Satilmisoglu1, M Gul2, S Ozyilmaz3

  • 1Department of Cardiology, Istanbul Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Training and Research Hospital, University of Health Sciences, Istanbul, Turkey. drmg23@gmail.com.

Insights

Prasugrel and ticagrelor show similar effectiveness for major adverse cardiac events in ST-elevation myocardial infarction (STEMI) patients after percutaneous coronary intervention (PCI). However, prasugrel was associated with fewer treatment discontinuations and better tolerability compared to ticagrelor.

Area of Science:

  • Cardiology
  • Pharmacology
  • Clinical Medicine

Background:

  • ST-segment-elevation myocardial infarction (STEMI) is a critical condition requiring prompt intervention.
  • Oral antiplatelet therapy is essential post-percutaneous coronary intervention (PCI) to prevent thrombotic events.
  • Prasugrel and ticagrelor are P2Y12 inhibitors used in STEMI patients, with differing clinical profiles.

Purpose of the Study:

  • To compare the efficacy and safety of prasugrel versus ticagrelor in STEMI patients undergoing primary PCI.
  • To evaluate major adverse cardiac events (MACE) and other clinical outcomes between the two antiplatelet agents.
  • To assess treatment discontinuation rates and reasons, particularly dyspnea-related, between prasugrel and ticagrelor.

Main Methods:

  • A prospective comparative study included 560 STEMI patients suitable for PCI.
  • Patients received either prasugrel (n=232) or ticagrelor (n=328) as oral antiplatelet therapy.
  • Follow-up averaged 10.9 months for prasugrel and 11.9 months for ticagrelor, monitoring MACE, mortality, bleeding, and stent thrombosis.

Main Results:

  • Major adverse cardiac events occurred at similar rates: 7.3% for prasugrel vs. 7.9% for ticagrelor (p=0.793).
  • Mortality rates were higher in the ticagrelor group (6.7%) but not statistically significant compared to prasugrel (3.4%, p=0.092).
  • Treatment discontinuation was significantly higher with ticagrelor (14.3%) vs. prasugrel (8.6%, p=0.023), primarily due to dyspnea in the ticagrelor group (p=0.001).

Conclusions:

  • Prasugrel and ticagrelor demonstrate comparable efficacy in preventing MACE in STEMI patients post-PCI.
  • Prasugrel exhibits superior tolerability, leading to significantly lower treatment discontinuation rates compared to ticagrelor.
  • The findings suggest prasugrel may be a preferred option when long-term adherence is a concern due to side effects like dyspnea.

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