Ignite Creation Date:
2024-05-06 @ 2:35 PM
Last Modification Date:
2024-10-26 @ 1:34 PM
Study NCT ID:
NCT04369534
Status:
COMPLETED
Last Update Posted:
2020-04-30
First Post:
2020-04-27
Brief Title:
Efficacy and Safety of Individualized P2Y12 Receptor Antagonists Treatment Based on Agregometry Versus Fixed Dose Regimen in Patients After Acute Myocardial Infarction
Sponsor:
University of Zagreb
Organization:
University of Zagreb
Study Overview
Official Title:
Efficacy and Safety of Individualized P2Y12 Receptor Antagonists Treatment Based on Agregometry Versus Fixed Dose Regimen in Patients After Acute Myocardial Infarction
Status:
COMPLETED
Status Verified Date:
2020-04
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
SPARELIFE
Brief Summary:
The specific goal of this study is to determine whether the individualized approach and adjusting the dosage of the P2Y12 receptor inhibitors will improve the platelet inhibiton and the clinical outcome in patients with an ACS that were treated with PCI and the aforementioned drugs but with an increased initial residual platelet activity It is expected that the patients that have undergone the P2Y12 inhibitor therapy adjustment according to the platelet reactivity measured by POC devices will have better clinical outcomes ie less ischemic events without a significant increase in bleeding events than those who did not undergo the therapy adjustment
Detailed Description:
In this study we plan to continue our previous research on individualized approach to platelet aniaggregation therapy in patients with an ACS treated with a PCI The subjects included in this study will be adult patients successfully treated in our department for ACS unstabile angina pectoris non-ST segment elevation myocardial infarction and ST segment elevation myocardal infarction with a PCI a coronary stent implantation and the subsequent dual platelet antiaggregation therapy combining ASA and a P2Y12 receptor inhibitor The diagnosis of different types of ACS will be made depending on the clinical presentation ECG findings and changes in cardiac biomarker serum levels troponin T and MB creatinine kinase isoezyme Percutaneous coronary revascularization and the dual platelet antiaggregation therapy are the basis of the modern ACS treatment Because the newer P2Y12 receptor inhibitors are not momentarily widely available in Croatia the initial treatment will include the combination of ASA and clopidogrel The exclusion critera are as following postinterventional continuous GPIIbIIIa inhibitor therapy thrombocytopenia 150x10E9L signifcant renal failure creatinine200 µmolL anemia Htc30 hemorrhagic diathesis history of recent hemorrhagic or ischemic CVI within 6 months of admission recent surgical procedure within 6 weeks of admission and an indication for chronic anticoagulant therapy Also patients older than 80 years of age will not be included into this study The necessary number of subjects is between 100 and 120
Aggregometry using the ADP test will be done to all the patients without the exclusion criteria that were successfully treated wth PCI The testing will be done within 24 hours of the intervention in order to determine the pharmacodynamic effect P2Y12 receptor inhibitors have on platelets and their reactivity The optimal platelet reactivity according to the international consensus is between 19 and 46 U 49 The patients that will have an increased residual PR 46 U after being given the loading doses of clopidogrel will be included in this study and randomized into three groups using a computer software Research Randomizer The patients randomized into the first group will be given the newer P2Y12 receptor inhibitor ticagrelor during the 12 months The second group of patients will be given ticagrelor initially and after the first 30 days it will be replaced with clopidogrel that will be given for the remaining time period up to 12 months Clopidogrel dosing will be modified according to the results of the aggregometry using the ADP test The third group of patients will have the same therapy regiment as the second group but will be given the standard doses of clopidogrel regardless of the aggregometry findings The follow-up period during which the dual platelet antiaggregation therapy will be administered is going to be 12 months for each patient Within this time-frame total of ten PR measurements will be done The measurements in the first month are scheduled as follows on the first second third seventh and thirtieth day after the ACS and the PCI The following measurements are scheduled two three six nine and twelve months after the ACS and the PCI
Aggregometry using the ADP test will be done to all the patients without the exclusion criteria that were successfully treated wth PCI The testing will be done within 24 hours of the intervention in order to determine the pharmacodynamic effect P2Y12 receptor inhibitors have on platelets and their reactivity The optimal platelet reactivity according to the international consensus is between 19 and 46 U 49 The patients that will have an increased residual PR 46 U after being given the loading doses of clopidogrel will be included in this study and randomized into three groups using a computer software Research Randomizer The patients randomized into the first group will be given the newer P2Y12 receptor inhibitor ticagrelor during the 12 months The second group of patients will be given ticagrelor initially and after the first 30 days it will be replaced with clopidogrel that will be given for the remaining time period up to 12 months Clopidogrel dosing will be modified according to the results of the aggregometry using the ADP test The third group of patients will have the same therapy regiment as the second group but will be given the standard doses of clopidogrel regardless of the aggregometry findings The follow-up period during which the dual platelet antiaggregation therapy will be administered is going to be 12 months for each patient Within this time-frame total of ten PR measurements will be done The measurements in the first month are scheduled as follows on the first second third seventh and thirtieth day after the ACS and the PCI The following measurements are scheduled two three six nine and twelve months after the ACS and the PCI
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
False
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
None