Rapid Activity of Platelet Inhibitor Drugs Study 2

Status Completed

Clinical Trial Summary

The aim of the RAPID study is to evaluate the superiority rapid onset of action of Ticagrelor 360 mg LD versus Prasugrel 60 mg LD, in 50 patients with STEMI (ST segment elevation myocardial infarction) undergoing PPCI with bivalirudin monotherapy. Secondary study aim is to found out clinical predictors of high residual platelet reactivity in the first hour after a novel oral antiplatelet agent LD.

Clinical Trial Description

50 consecutive patients with STEMI undergoing PPCI with bivalirudin (GP IIb/IIIa not allowed) will be randomized to receive Prasugrel (n= 25) or Ticagrelor (n= 25) before PPCI ( primary percutaneous coronary intervention) in a open label fashion. The loading dose of Prasugrel will be 60 mg, the loading dose of Ticagrelor will be 360 mg in 25 patients. The loading dose will be performed as soon as possible in the Emergency Room or in the Cath Lab. In the case of vomit in the first hour after drug loading dose a new reduced loading dose will be administered (30 mg Prasugrel or 180 mg Ticagrelor). All interventions will be performed by the femoral approach according to current standards. The use of thrombectomy before infarct-related artery stenting, of everolimus eluting stent and of closure devices will be strongly encouraged. Bivalirudin will be administered as a bolus 0.75 mg/kg followed by 1.75 mg/kg/h infusion during PCI. After PCI (percutaneous coronary intervention) a reduced bivalirudin infusion of 0.25 mg/kg/h for 4 hours will be allowed. Dual antiplatelet therapy (100 mg aspirin associated with 5 or 10 mg Prasugrel or 180 mg Ticagrelor) will be recommended for 12 months.

Residual platelet reactivity will be assessed in all patients at baseline (time of LD), and after 1, 2, 4 and 12 hours by a point-of-care test VerifyNow bedside available in the Intensive cardiac care Unit. High residual platelet reactivity will be defined as a Platelet Reactivity Units (PRU) > 240 by VerifyNow. At the same time point, Aspirin Reactivity Units (ARU) by VerifyNow will be also assessed. Follow-up will be performed by outpatient visits or telephone interviews at 6 months. ;

Study Design

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

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01805570
Study type	Interventional
Source	Careggi Hospital
Contact
Status	Completed
Phase	Phase 4
Start date	November 2012
Completion date	April 2013

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.