Ticagrelor Versus Prasugrel in Acute Coronary Syndromes After Percutaneous Coronary Intervention
Primary Purpose
Coronary Artery Disease, Acute Coronary Syndrome
Status
Completed
Phase
Phase 3
Locations
Greece
Study Type
Interventional
Intervention
Prasugrel
Ticagrelor
Sponsored by

About this trial
This is an interventional treatment trial for Coronary Artery Disease focused on measuring coronary angioplasty, clopidogrel hyporesponsiveness, prasugrel, ticagrelor, CAD, ACS
Eligibility Criteria
Inclusion Criteria:
- Age ≥18 years old
Patients having PCI with stenting 24 hours prior randomization, meeting one of the following criteria :
- Acute coronary syndrome (unstable angina or myocardial infarction)
- TIMI risk score>2
- Platelet reactivity in PRU ≥235 24 hours post-PCI
- Informed consent obtained in writing
Exclusion Criteria:
- Treatment with other investigational agents (including placebo) or devices within 30 days prior to randomization or planned use of investigational agents or devices prior to the Day 30 visit.
- Pregnancy
- Breastfeeding
- Inability to give informed consent or high likelihood of being unavailable for the Day 30 follow up.
- Prior PCI performed within 30 days prior to randomization
- Cardiogenic shock
- Major periprocedural complications (death, stent thrombosis, vessel perforation, arrhythmias requiring cardioversion, temporary pacemaker insertion or intravenous antiarrhythmic agents, respiratory failure requiring intubation, vascular injury (pseudoaneurysm, arteriovenous shunt, retroperitoneal bleeding or hematoma >5 cm at the arterial catheter insertion site), major bleeding (need for bood transfusion or drop in haemoglobin post-PCI by ≥ 5 gr/ dl or intracranial bleeding).
- Unsuccessful PCI (residual stenosis > 30% or flow < ΤΙΜΙ 3) or planned staged PCI in the next 30 days after randomization
- Requirement for oral anticoagulant prior to the Day 30 visit
- Current or planned therapy with other thienopyridine class of ADP receptor inhibitors.
- Known hypersensitivity to prasugrel or ticagrelor
- History of gastrointestinal bleeding, genitourinary bleeding or other site abnormal bleeding within the previous 6 months.
- Other bleeding diathesis, or considered by investigator to be at high risk for bleeding on longterm thienopyridine therapy.
- Any previous history of ischemic stroke, intracranial hemorrhage or disease (neoplasm, arteriovenous malformation, aneurysm).
- Thombocytopenia (<100.000 / μL) at randomization
- Anaemia (Hct <30%) at randomization
- Polycytaemia (Hct > 52%) at randomization
- Periprocedural IIb/IIIa inhibitors administration
- Severe allergy to contrast agent, unfractionated heparin, enoxaparin or bivalirudin that cannot be adequately premedicated.
- Recent (< 6 weeks) major surgery or trauma, including GABG.
- Subjects receiving daily treatment with nonsteroidal anti-inflammatory drugs (NSAIDs) or cyclooxygenase-2 (COX-2) inhibitors that cannot be discontinued for the duration of the study.
- Concomitant oral or IV therapy with strong CY P3A inhibitors (ketoconazole, itraconazole, voriconazole, telithromycin, clarithromycin, nefazodone, ritonavir, saquinavir, nelfinavir, indinavir, atazana vir, grapefruit juice N1 L/d), CYP3A substrates with narrow therapeutic indices (cyclosporine, quinidine), or strong CYP3A inducers (rifampin /rifampicin, phenytoin, carbamazepine).
- Increased risk of bradycardiac events.
- Dialysis required.
Sites / Locations
- Cardiology Department Patras University Hospital
Arms of the Study
Arm 1
Arm 2
Arm Type
Active Comparator
Experimental
Arm Label
Prasugrel
Ticagrelor
Arm Description
Outcomes
Primary Outcome Measures
Platelet Reactivity Units (PRU) assessed by VerifyNow (Accumetrics)
The primary outcome will be assessed 15 days after the onset of each study drug
Secondary Outcome Measures
Hyporesponsiveness rate (PRU≥235) at the end of the 2 treatment periods
Hyporesponsiveness rate will be assessed 15 days after the onset of each study drug
Full Information
1. Study Identification
Unique Protocol Identification Number
NCT01360437
Brief Title
Ticagrelor Versus Prasugrel in Acute Coronary Syndromes After Percutaneous Coronary Intervention
Official Title
Ticagrelor in Comparison to Prasugrel for Inhibition of Platelet Reactivity, in Patients With Acute Coronary Syndrome (ACS) Presenting Resistance to the Usual Clopidogrel Dose After PCI
Study Type
Interventional
2. Study Status
Record Verification Date
June 2012
Overall Recruitment Status
Completed
Study Start Date
May 2011 (undefined)
Primary Completion Date
December 2011 (Actual)
Study Completion Date
December 2011 (Actual)
3. Sponsor/Collaborators
Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
University of Patras
4. Oversight
Data Monitoring Committee
No
5. Study Description
Brief Summary
This is a single-center, randomized, single-blind, investigator-initiated pharmacological study with a crossover design. Patients with acute coronary syndrome (ST-elevation myocardial infarction, non-ST elevation myocardial infarction, unstable angina) and presenting high on-clopidogrel platelet reactivity as assessed with the VerifyNow assay (platelet reactivity units PRU≥235) 24 hours post percutaneous coronary intervention (PCI), will be randomized after informed consent in a 1:1 ratio to either prasugrel 10mg/d or ticagrelor 90mg twice a day for 15 days. Platelet reactivity assessment will be performed at Day 15±2 days and then a crossover directly to the alternate treatment group for an additional 15 days period, without an intervening washout period will be carried out. Patients will return at Day 30±2 days for platelet reactivity assessment.
6. Conditions and Keywords
Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Coronary Artery Disease, Acute Coronary Syndrome
Keywords
coronary angioplasty, clopidogrel hyporesponsiveness, prasugrel, ticagrelor, CAD, ACS
7. Study Design
Primary Purpose
Treatment
Study Phase
Phase 3
Interventional Study Model
Crossover Assignment
Masking
Outcomes Assessor
Allocation
Randomized
Enrollment
44 (Actual)
8. Arms, Groups, and Interventions
Arm Title
Prasugrel
Arm Type
Active Comparator
Arm Title
Ticagrelor
Arm Type
Experimental
Intervention Type
Drug
Intervention Name(s)
Prasugrel
Intervention Description
Prasugrel 10mg/day
Intervention Type
Drug
Intervention Name(s)
Ticagrelor
Intervention Description
Ticagrelor 90mg twice a day
Primary Outcome Measure Information:
Title
Platelet Reactivity Units (PRU) assessed by VerifyNow (Accumetrics)
Description
The primary outcome will be assessed 15 days after the onset of each study drug
Time Frame
Day 15
Secondary Outcome Measure Information:
Title
Hyporesponsiveness rate (PRU≥235) at the end of the 2 treatment periods
Description
Hyporesponsiveness rate will be assessed 15 days after the onset of each study drug
Time Frame
Day 15
10. Eligibility
Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
80 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria:
Age ≥18 years old
Patients having PCI with stenting 24 hours prior randomization, meeting one of the following criteria :
Acute coronary syndrome (unstable angina or myocardial infarction)
TIMI risk score>2
Platelet reactivity in PRU ≥235 24 hours post-PCI
Informed consent obtained in writing
Exclusion Criteria:
Treatment with other investigational agents (including placebo) or devices within 30 days prior to randomization or planned use of investigational agents or devices prior to the Day 30 visit.
Pregnancy
Breastfeeding
Inability to give informed consent or high likelihood of being unavailable for the Day 30 follow up.
Prior PCI performed within 30 days prior to randomization
Cardiogenic shock
Major periprocedural complications (death, stent thrombosis, vessel perforation, arrhythmias requiring cardioversion, temporary pacemaker insertion or intravenous antiarrhythmic agents, respiratory failure requiring intubation, vascular injury (pseudoaneurysm, arteriovenous shunt, retroperitoneal bleeding or hematoma >5 cm at the arterial catheter insertion site), major bleeding (need for bood transfusion or drop in haemoglobin post-PCI by ≥ 5 gr/ dl or intracranial bleeding).
Unsuccessful PCI (residual stenosis > 30% or flow < ΤΙΜΙ 3) or planned staged PCI in the next 30 days after randomization
Requirement for oral anticoagulant prior to the Day 30 visit
Current or planned therapy with other thienopyridine class of ADP receptor inhibitors.
Known hypersensitivity to prasugrel or ticagrelor
History of gastrointestinal bleeding, genitourinary bleeding or other site abnormal bleeding within the previous 6 months.
Other bleeding diathesis, or considered by investigator to be at high risk for bleeding on longterm thienopyridine therapy.
Any previous history of ischemic stroke, intracranial hemorrhage or disease (neoplasm, arteriovenous malformation, aneurysm).
Thombocytopenia (<100.000 / μL) at randomization
Anaemia (Hct <30%) at randomization
Polycytaemia (Hct > 52%) at randomization
Periprocedural IIb/IIIa inhibitors administration
Severe allergy to contrast agent, unfractionated heparin, enoxaparin or bivalirudin that cannot be adequately premedicated.
Recent (< 6 weeks) major surgery or trauma, including GABG.
Subjects receiving daily treatment with nonsteroidal anti-inflammatory drugs (NSAIDs) or cyclooxygenase-2 (COX-2) inhibitors that cannot be discontinued for the duration of the study.
Concomitant oral or IV therapy with strong CY P3A inhibitors (ketoconazole, itraconazole, voriconazole, telithromycin, clarithromycin, nefazodone, ritonavir, saquinavir, nelfinavir, indinavir, atazana vir, grapefruit juice N1 L/d), CYP3A substrates with narrow therapeutic indices (cyclosporine, quinidine), or strong CYP3A inducers (rifampin /rifampicin, phenytoin, carbamazepine).
Increased risk of bradycardiac events.
Dialysis required.
Facility Information:
Facility Name
Cardiology Department Patras University Hospital
City
Rio
State/Province
Patras
ZIP/Postal Code
26500
Country
Greece
12. IPD Sharing Statement
Citations:
PubMed Identifier
22789884
Citation
Alexopoulos D, Galati A, Xanthopoulou I, Mavronasiou E, Kassimis G, Theodoropoulos KC, Makris G, Damelou A, Tsigkas G, Hahalis G, Davlouros P. Ticagrelor versus prasugrel in acute coronary syndrome patients with high on-clopidogrel platelet reactivity following percutaneous coronary intervention: a pharmacodynamic study. J Am Coll Cardiol. 2012 Jul 17;60(3):193-9. doi: 10.1016/j.jacc.2012.03.050.
Results Reference
derived
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Ticagrelor Versus Prasugrel in Acute Coronary Syndromes After Percutaneous Coronary Intervention
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