Please select the eligibility criteria that correspond to the clinical trial below.
Title: A New Strategy Regarding Discontinuation of Dual Antiplatelet; Real Safety and Efficacy of a 3-month Dual Antiplatelet Therapy Following Zotarolimus-eluting Stents Implantation (RESET Trial)
Brief Summary: Drug-eluting stents (DES), markedly reducing the neointimal hyperplasia after stent implantation compared with bare-metal stents (BMS), have improved angiographic and clinical outcomes in the complex lesions and patients with high risks. However, currently, the fatal events related with stent thrombosis still occur and are the major limitation of the use of DES. Especially, late or very late thrombosis after DES implantation is an uncommon but life-threatening fatal complication presented with sudden death or myocardial infarction (MI) causing heart failure. The most powerful predictor for stent thrombosis is the discontinuation of clopidogrel. In consideration of current data regarding stent thrombosis and clinical situation of discontinuation of antiplatelet, zotarolimus-eluting stent (ZES) \[Endeavor®, Medtronic Vascular, Santa Rosa, CA\] might be anticipated to be safer than other DES during the long-term follow-up owing to healthy endothelialization. Endeavor® stent was consists of zotarolimus, thin-strut, cobalt-chromium alloy stent platform (DriverTM stent; Medtronic Vascular, Santa Rosa, CA), and phosphorylcholine coating. The ENDEAVOR II study demonstrated clinically and statistically significant improvement in all of study endpoints, including a 47 percent reduction in the primary endpoint of target vessel failure (TVF). In addition, the ENDEAVOR II trial showed a 0.5 percent rate of stent thrombosis at 30 days - with no late thrombosis beyond 30 days and no late stent malapposition. Because reendothelialization after ZES implantation may occur within 3 months, 3-month dual antiplatelet therapy is recommended in many clinical trials and real world practice. Shorter maintenance of dual antiplatelet therapy might minimize the risk for stent thrombosis in cases of discontinuation of antiplatelet and prevent waste medications and bleeding complications related with dual antiplatelet therapy. However, there have been no non-inferior or superior data of ZES considering all these circumstances. Therefore, the investigators hypothesize that ZES with 3-month dual antiplatelet therapy may be safe and beneficial in patients with coronary artery disease during follow-up than other DES, in spite of higher late lumen loss. To test this hypothesis, the investigators will perform a multi-center, randomized, prospective trial aimed at demonstrating the efficacy of the ZES versus other DES in patients with coronary artery disease in real world practice.


Options:
A: Inclusion Criteria:

* Isolated coronary artery bypass grafting
* Patients older than 18 years
* Written informed consent
* Accurate antiplatelet therapy administration documentation

Exclusion Criteria:

* Missing consent
* Patients with cardiac surgical procedures other than isolated CABG
* Antiplatelet therapy other than aspirin 300 mg after CABG
* Previous PCI requiring clopidogrel therapy after CABG
* Patients with unknown preoperative anti-platelet status
* Urgent or emergent surgery
* Off-pump CABG
* Re-Do CABG
* Patients younger than 18 years
B: Inclusion Criteria:

1. Males or females ≥ 18 years of age with coronary artery disease with low, intermediate or high-risk coronary anatomy, which is considered suitable for PCI with stent placement.
2. Subjects who have provided written informed consent prior to initiation of any study-related procedures, prior to receiving any pre-procedural sedation and who agree to comply with all protocol-specified procedures.

Exclusion Criteria:

1. Women who are pregnant. Women of childbearing potential must have a negative pregnancy test (urine or serum HCG) within 7 days prior to randomization; as close to randomization as possible, within 24 hours preferred.
2. Allergy or intolerance to aspirin, or both clopidogrel and ticlopidine
3. Subjects with a contraindication to anticoagulation and/or increased bleeding risk:

   * Past or present bleeding disorder including a history of the following within 1 month prior to randomization: clinically relevant gastrointestinal bleeding, gross (visible) hematuria,
   * Planned major surgery including CABG after or within 1 month prior to randomization.
   * Any subject with a known coagulopathy, platelet disorder, or history of thrombocytopenia.
4. Subjects with a history of cancer (limiting survival) not known to be disease free, with the exception of basal cell carcinoma of the skin.
5. History of clinically important, recent or ongoing alcohol abuse or other drug abuse.
6. Known platelet count \<100,000/mm3 (\<100 x 109/L).
7. Subjects who is unable to give informed consent and assurance for complete contact through 2 years.
C: Inclusion Criteria:

1. Among consecutive patients treated with DES, event-free patients who survived at least the first 12 months without nonfatal MI or repeat revascularization
2. The patient or guardian agrees to the study protocol and the schedule of clinical follow-up, and provides informed, written consent, as approved by the appropriate Institutional Review Board/Ethical Committee of the respective clinical site.

Exclusion Criteria:

1. Contraindication to antiplatelet therapy (aspirin or clopidogrel)
2. Non-cardiac co-morbid conditions are present with life expectancy \<1 year or that may result in protocol non-compliance (per site investigator's medical judgment).
3. Patients who are actively participating in another drug or device investigational study, which have not completed the primary endpoint follow-up period.
4. Concurrent bleeding diathesis or major bleeding history requiring discontinuation of antiplatelet drugs.
5. Patients with left main stem stenosis (\>50% by visual estimate) or left main stenting
6. Concomitant disease requiring long-term use of clopidogrel (stroke, peripheral vascular disease, significant carotid a. disease, etc)
D: Inclusion Criteria:

* Coronary artery disease including stable angina, unstable angina, acute non-ST elevation myocardial infarction and acute ST elevation myocardial infarction
* Age 20 years of older
* Patients with typical chest pain or evidences of myocardial ischemia (e.g., stable, unstable angina, silent ischemia and positive functional study or reversible changes in the electrocardiogram (ECG) consistent with ischemia
* Patients with signed informed consent
* Lesion and stent length for ACS and DM subgroup : Length of single lesion \< 24 mm and, Summation of total length of all inserted DES in 3 vessel \< 60 mm
* Lesion and stent length for ACS and DM subgroup : Length of single lesion \< 24 mm and, Summation of total length of all inserted DES in 3 vessel \< 60 mm
* Lesion and stent length for long lesion subgroup : Length of single stent per single lesion \> 28 mm and, Summation of total length of all inserted DES in 3 vessel ≤ 90 mm, Possible overlapping stent
* Lesion and stent length for short lesion subgroup : Length of single lesion \< 24 mm and, Summation of total length of all inserted DES in 3 vessel \< 60 mm
* Significant coronary artery stenosis (\>50% by visual estimate) considered for coronary revascularization with stent implantation
* Reference vessel diameter of 2.5 to 4.0 mm by operator assessment
* Lesion success (30% or less residual stenosis by visual assessment over the entire stent length, with TIMI-3 flow and no more than an NHLBI type B peri-stent dissection

Exclusion Criteria:

* Contraindication to anti-platelet agents \& bleeding history within prior 3 months
* Known hypersensitivity or contraindication to any of the following medications: Heparin, Aspirin, Clopidogrel, limus related drug
* Prior history of the following presentations : Cerebral vascular accident (not including transient ischemic attack, Peripheral artery occlusive diseases, Thromboembolic disease, Stent thrombosis
* Severe hepatic dysfunction (3 times normal reference values)
* Significant renal dysfunction (Serum creatinine \> 2.0 mg/dl)
* Significant leukopenia, neutropenia, thrombocytopenia, anemia, or known bleeding diathesis
* Cardiogenic shock
* LVEF \< 40%
* Pregnant women or women with potential childbearing
* Life expectancy 3 year
* Overlapped DESs(only long lesion subgroup is possible overlapping)
* Left main disease requiring PCI
* Bifurcation lesion with 2-stent technique
* Target lesions with in-stent restenosis at the stented segment of DES or BMS
* Lesions with chronic total occlusion
* History of PCI with DES
* In-stent restenosis lesion

Answer: D