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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
University of Patras
About
Eligibility
Locations
Arms
Outcomes
Full info

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

18 Years - 80 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  1. Age ≥18 years old
  2. 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
  3. Platelet reactivity in PRU ≥235 24 hours post-PCI
  4. 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

First Posted
May 23, 2011
Last Updated
June 21, 2012
Sponsor
University of Patras
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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
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Ticagrelor Versus Prasugrel in Acute Coronary Syndromes After Percutaneous Coronary Intervention

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