Peripheral Artery Disease Clinical Trial
Official title:
Post-operative Treatment of Diabetic Peripheral Arterial Disease Guided by Platelet Reactivity Unit
To compare the effect of PRU(platelet (P2Y12) reaction units)-guided treatment on the change
in
1. time of initial leg pain and time of termination of exercise test by pain, evaluated on
the graded stationary bicycle test,
2. the lower limb perfusion by using MRI blood oxygenation-level dependent (BOLD) and
dynamic contrast enhancement sequences and measures the extracellular volume fraction
(ECV) as an indicator of fibrosis severity in calf muscles, from one to 52 weeks
post-revascularization in patients with peripheral artery disease who have undergone
endovascular revascularization -/+ bypass surgery for moderate to severe claudication
or ischemic rest pain.
Patients will be randomly assigned to PRU-guided and non-PRU-guided group. In the non-PRU -target group, dual antiplatelet therapy with clopidogrel 75 mg and aspirin 100 mg daily will be continued for 6 months after the procedure for patient followed with single antiplatelet therapy with clopidogrel 75 mg daily throughout the follow-up period. In the PRU-target group, dual antiplatelet therapy will be the same protocol as in the non-PRU-target group for patients with PRU <234 seconds. However, for patients in the PRU-target group with PRU ≥234 seconds, rescue medicine will be added to keep PRU<234 seconds. ;
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment
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