Platelet Inhibition After Pre-hospital Ticagrelor Using Fentanyl Compared to Morphine in Patients With ST-segment Elevation Myocardial Infarction Undergoing Primary Percutaneous Coronary Intervention

2015-08-24 21:38:23 | BioPortfolio


Prospective, randomized, open-label, single-center, investigator-initiated trial, including patients with ST-segment elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (PPCI) within 12 hours of the symptom's onset. The study aims to compare platelet inhibition (pharmacodynamics and pharmacokinetics) of pre-hospital Ticagrelor in patients with STEMI according to two different analgesia protocols using Fentanyl or Morphine.


Consecutive patients with acute STEMI within 12 hours of the symptoms' onset and candidates for PPCI will be screened for inclusion in the study. Eligible patients who require analgesia for the relief of acute chest pain, defined as Visual Analogue Scale ≥3, will be randomized in a 1:1 ratio into one of the two treatment arms to receive analgesia with either Morphine or Fentanyl following administration of a pre-hospital loading dose of Ticagrelor. Randomized patients will undergo primary PCI and managed according to the current guidelines of the European Society of Cardiology. Blood samples (10 ml) will be collected at 0, 1, 2, 4, 6, 12 and 24 hours after the loading dose of Ticagrelor to assess platelet inhibition using the VerifyNow P2Y12 function and the Vasodilator-Stimulated-phosphoprotein Phosphorylation (VASP) assays, plasma concentration of Ticagrelor and its active metabolite (AR-C124910XX) using a validated liquid chromatography/mass spectrometry detection method and the procoagulant action of platelets.

Study Design

Allocation: Randomized, Endpoint Classification: Pharmacokinetics/Dynamics Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment


Acute Myocardial Infarction


Fentanyl, Morphine, Ticagrelor, Aspirin, Unfractioned Heparin, Primary PCI


Centre Hospitalier Universitaire Vaudois


Not yet recruiting


Centre Hospitalier Universitaire Vaudois

Results (where available)

View Results


Published on BioPortfolio: 2015-08-24T21:38:23-0400

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Medical and Biotech [MESH] Definitions

A non-steroidal anti-inflammatory agent that is less effective than equal doses of ASPIRIN in relieving pain and reducing fever. However, individuals who are hypersensitive to ASPIRIN may tolerate sodium salicylate. In general, this salicylate produces the same adverse reactions as ASPIRIN, but there is less occult gastrointestinal bleeding. (From AMA Drug Evaluations Annual, 1992, p120)

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