Coronary Artery Disease Clinical Trial
Official title:
Τicagrelor Versus Prasugrel in Diabetic Patients: a Pharmacodynamic Study
Verified date | January 2013 |
Source | University of Patras |
Contact | n/a |
Is FDA regulated | No |
Health authority | Greece: Ethics Committee |
Study type | Interventional |
This is a prospective, randomized, single-center, single blind, investigator initiated, two period study of crossover design. Diabetic patients with Acute Coronary Syndrome (ACS), treated with oral and/or parenteral hypoglycaemic therapy for at least 1 month and subjected to percutaneous coronary intervention (PCI), will be randomized after a baseline platelet reactivity (PR) assessment (24 hours post PCI) while under clopidogrel in a 1:1 ratio to either prasugrel 10mg or ticagrelor 180mg for 15 days followed by crossover directly to the alternate therapy for an additional 15 days without an intervening washout period.
Status | Completed |
Enrollment | 30 |
Est. completion date | September 2012 |
Est. primary completion date | September 2012 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 18 Years to 75 Years |
Eligibility |
Inclusion Criteria: - Age 18 to 75 years - Diabetic patients treated with oral and/or parenteral hypoglycaemic therapy for at least 1 month - Patients with acute coronary syndrome subjected to PCI with a baseline PR evaluation 24 hours post PCI while on clopidogrel - 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. - 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 < ???? 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). - Thrombocytopenia (< 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. - Age = 75 years - Weight < 60 Kg - Severe hepatic impairment - Severe uncontrolled chronic obstructive pulmonary disease |
Allocation: Randomized, Endpoint Classification: Pharmacodynamics Study, Intervention Model: Crossover Assignment, Masking: Single Blind (Outcomes Assessor), Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
Greece | Cardiology Department Patras University Hospital | Patras | Achaia |
Lead Sponsor | Collaborator |
---|---|
University of Patras |
Greece,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Platelet reactivity | The primary outcome will be assessed 15 days after the onset of each study drug by the VerifyNow (Accumetrics)assay in platelet reactivity units (PRU) | 15 days | No |
Secondary | Hyporesponsiveness rate (PRU=230) at the end of the 2 treatment periods | Hyporesponsiveness rate will be assessed 15 days after the onset of each study drug | Day 15 | No |
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