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Clinical Trial Summary

In patients after myocardial infarction (MI) (heart attacks) and treated with percutaneous coronary intervention (PCI), the current standard is dual antiplatelet therapy (DAPT), with aspirin and a P2Y12 receptor inhibitor, for 1 year of treatment. At 1 year, there are several options including: i) Ongoing DAPT (with aspirin and ticagrelor), ii) Selective treatment use of a P2Y12 inhibitor based on risk profiles. This study is a pilot vanguard study to evaluate several strategies for choosing anti-platelet regimen among patients post MI and PCI at 1 year.


Clinical Trial Description

The present study is a pilot/vanguard 3-arm study that seeks to compare 3 possible strategies for patients that are 1 year post MI and PCI. The 3 randomized groups include: i) aspirin and ticagrelor 60 mg twice daily, ii) monotherapy with ticagrelor 60 mg twice daily and iii) a personalized arm (PA), where patients will get selective therapy based on demographic and genetic risks. The PA group will use a modified DAPT score based on patient demographics to decide whether P2Y12 treatment is warranted. For those patients where treatment is warranted, a bedside genetic test will be used to determine whether they are carriers of at-risk genotypes, which put them at risk for under-responsiveness to clopidogrel (one of the specific P2Y12 inhibitors). Those identified as carriers will be treated with ticagrelor while non-carriers will be treated with clopidogrel. The study will act as a vanguard study to prove feasibility of enrollment and document overall bleeding rates. The long-term goal of the study is determine whether a personalized approach will decrease bleeding versus an approach of DAPT with ticagrelor and versus an approach with ticagrelor monotherapy. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03729401
Study type Interventional
Source Ottawa Heart Institute Research Corporation
Contact
Status Suspended
Phase Phase 4
Start date August 22, 2019
Completion date September 2024

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