Ticagrelor and prasugrel in acute coronary syndrome: a single-arm crossover platelet reactivity study

Monica Verdoia1, Patrizia Pergolini2, Matteo Nardin1

  • 1Department of Translational Medicine.

Insights

Ticagrelor and prasugrel show similar platelet inhibition in acute coronary syndrome patients after percutaneous coronary intervention. Switching between these antiplatelet medications is safe and effective for most patients.

Area of Science:

  • Cardiology
  • Pharmacology
  • Hematology

Background:

  • Acute coronary syndrome (ACS) requires potent antiplatelet therapy.
  • Percutaneous coronary intervention (PCI) is a common treatment for ACS.
  • Ticagrelor and prasugrel are P2Y12 inhibitors used in ACS patients.

Purpose of the Study:

  • To compare platelet inhibition between ticagrelor and prasugrel.
  • To assess the safety and efficacy of switching between ticagrelor and prasugrel.

Main Methods:

  • Platelet function assessed by impedance aggregometry.
  • Patients received aspirin and ticagrelor, then switched to prasugrel.
  • High-on-treatment platelet reactivity (HRPR) defined by ADP test results.

Main Results:

  • No significant difference in mean platelet reactivity or HRPR prevalence between ticagrelor and prasugrel.
  • Switching between agents was safe and well-tolerated in over 95% of patients.
  • Only 3.8% showed ineffective response to both drugs.

Conclusions:

  • Ticagrelor and prasugrel demonstrate comparable platelet inhibition.
  • Switching between ticagrelor and prasugrel is a safe and effective strategy.
Abstract

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