About this trial
A prospective, multi-center, open-label, randomized controlled, and superiority trial. The trial will compare clinical outcomes between discontinuation of antiplatelet agent and continuation of antiplatelet agent in HBR patients with chronic coronary syndrome treated by DCB angioplasty and standard duration of DAPT, followed by maintenance of single antiplatelet agent without clinical event for at least 1 year from the index procedure.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Subject must be at least 19 years of age
Subject who is able to understand risks, benefits and treatment alternatives and sign informed consent voluntarily.
Patients with chronic coronary syndrome and at least one de novo lesion of reference vessel size ≥2.25 mm, treated with DCB angioplasty
Patients with high bleeding risk: one or more of the criteria listed A. Age ≥ 75 years old B. Baseline Hemoglobin <11 g/dl (or anemia requiring transfusion during the 4 weeks prior to randomization) C. Any prior intra-cerebral bleed D. Hospital admission for bleeding during the prior 12 months E. Non skin cancer diagnosed or treated < 3 years F. Planned daily NSAID (other than aspirin) or steroids for >30 days after PCI G. Planned surgery that would require interruption of DAPT (within next 12 months) H. Renal failure defined as calculated creatinine clearance <40 ml/min or on dialysis I. Hematological disorders (platelet count <100,000/mm3 or any coagulation disorder) J. Severe chronic liver disease defined as patients who have developed any of the following: variceal hemorrhage, ascites, hepatic encephalopathy or jaundice K. Expected non-compliance to secondary prevention medications after PCI for other medical reasons
Disqualifiers
Patients unable to provide consent
Patients with acute myocardial infarction or unstable angina
Patients with known intolerance to aspirin, P2Y12 inhibitors, or components of DCB
Patients with indication of oral anticoagulant
Trial design
Parallel
Treatments tested in this trial
Discontinuation of antiplatelet agent group
Other interventionIn this group, antiplatelet monotherapy will be discontinued at the time of randomization. Randomization will be performed at 1 year from the index procedure using DCB angioplasty, standard duration of DAPT (1-3 months), and maintenance of antiplatelet monotherapy at least 1 year from the index procedure in patients with HBR and chronic coronary syndrome. In patients who are still under DAPT at 1 year from index DCB angioplasty, all antiplatelet agents will be discontinued after randomization.
Continuation of antiplatelet agent group
Other interventionIn this group, lifelong antiplatelet monotherapy will be continued after the time of randomization. Randomization will be performed at 1 year from the index procedure using DCB angioplasty, standard duration of DAPT (1-3 months), and maintenance of antiplatelet monotherapy at least 1 year from the index procedure in patients with HBR and chronic coronary syndrome. In patients who are still under DAPT at 1 year from index DCB angioplasty, DAPT will be changed to single antiplatelet therapy (aspirin or clopidogrel). The choice between aspirin or clopidogrel will be determined by the physician's discretion.
Treatment groups
Trial outcomes
Primary outcomes
Major bleeding (BARC 2, 3, or 5 bleeding)
BARC 2, 3, or 5 bleeding
Secondary outcomes
Patient-oriented composite outcome
a composite of all-cause death, non-fatal myocardial infarction, and any revascularization
Cardiovascular death
Cardiovascular death
All-cause death
All-cause death
Target-vessel myocardial infarction
Target-vessel myocardial infarction
Sponsors and contacts
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Samsung Medical Center
Lead sponsor
Chonnam National University Hospital
Collaborator