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Pre-treatment with prasugrel -- more risk, no benefit: ACCOAST
Date:9/1/2013

AMSTERDAM, The Netherlands In patients with non-ST-elevation acute coronary syndrome (NSTE- ACS), pre-treatment with the P2Y12 antagonist prasugrel prior to catheterization, significantly increases the risk of life-threatening bleeding without reducing the risk of major ischemic events, according to the results of the ACCOAST (A Comparison of Prasugrel at PCI or Time of Diagnosis of Non-ST Elevation Myocardial Infarction) trial.

The findings point to a "paradigm shift" away from pre-treatment in such patients which will not only be "hard to believe and destabilizing for many cardiologists, but may also be difficult to implement since the routine use of pre-treatment has been anchored for so long," said the study's lead investigator Gilles Montalescot, from the ACTION study group at the Institut de Cardiologie, Centre Hospitalier Universitaire Piti-Salptriėre, in Paris, France.

Current ESC and ACCF/AHA guidelines recommend that pre-treatment with P2Y12 inhibitors should be added to aspirin as soon as possible before catheterization and maintained over 12 months, unless there are contraindications such as excessive risk of bleeding, explained Dr. Montalescot.

This strategy has been accepted for years based on the results of observational, subgroup and non-randomized analyses performed with the older drug clopidogrel,

But newer P2Y12 receptor antagonists such as prasugrel are more potent and have a faster onset of action, which makes these drugs well-adapted to PCI.

"With the rapid onset of action of the oral and intravenous P2Y12 inhibitors and the modern era of short delays between hospital admission and catheterization, the risk of an ischemic complication before catheterization is extremely low, suggesting that there is no longer a need for pre-treatment in NSTE-ACS patients to prevent ischemic complications while waiting for catheterization," he said. "Moreover, there is also no benefit of pre-treatment on peri-PCI complications. To
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Contact: ESC Press Office
press@escardio.org
44-773-005-7146
European Society of Cardiology
Source:Eurekalert

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