Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Large, International, Placebo-controlled, Factorial Trial to Assess the Impact of Clonidine and Acetyl-salicylic Acid (ASA) in Patients Undergoing Noncardiac Surgery Who Are at Risk of a Perioperative Cardiovascular Event
Brief Summary: Major surgeries not involving the heart are common, and major heart problems during or after such surgeries represent a large population health problem. Few treatments to prevent heart problems around the time of surgery have been tested. There is encouraging data suggesting that small doses of Acetyl-Salicylic Acid (ASA) and Clonidine, which are two medications, given individually for a short period before and after major surgeries may prevent major heart problems. The POISE-2 Trial is a large international study to test if ASA and Clonidine can prevent heart attacks and deaths from heart problems around the time of surgery.


Options:
A: Inclusion criteria:

* Adult subjects (male or female≥40 years)
* Acute non-disabling ischemic stroke (NIHSS≤3 at the time of randomization) that can be treated with study drug within 24 hours of symptoms onset. Symptom onset is defined by the "last see normal" principle
* TIA (Neurological deficit attributed to focal brain ischemia, with resolution of the deficit within 24 hours of symptom onset), that can be treated with study drug within 24 hours of symptoms onset and with moderate-to-high risk of stroke recurrence (ABCD2 score≥4 at the time of randomization).Symptom onset is defined by the "last see normal" principle
* Informed consent signed

Exclusion Criteria:

* Diagnosis of hemorrhage or other pathology, such as vascular malformation, tumor, abscess or other major non-ischemic brain disease (e.g., multiple sclerosis) on baseline head CT or MRI
* Isolated or pure sensory symptoms (e.g., numbness), isolated visual changes, or isolated dizziness/vertigo without evidence of acute infarction on baseline head CT or MRI
* Modified Rankin Scale Score\>2 at randomization (pre-morbid historical assessment)
* NIH Stroke Score≥4 at randomization
* Clear indication for anticoagulation(presumed cardiac source of embolus, e.g., atrial fibrillation, prosthetic cardiac valves known or suspected endocarditis)
* Contraindication to clopidogrel or ASA
* Known allergy
* Severe renal or hepatic insufficiency
* Severe cardiac failure, asthma
* Hemostatic disorder or systemic bleeding
* History of hemostatic disorder or systemic bleeding
* History of thrombocytopenia or neutropenia
* History of drug-induced hematologic or hepatic abnormalities
* Low white blood cell (\<2 x109/l) or platelet count (\<100 x109/l)
* Use of thrombolysis within 24 hours prior to randomization
* History of intracranial hemorrhage
* Anticipated requirement for long-term non-study antiplatelet drugs, or NSAIDs affecting platelet function
* Current treatment (last dose given within 10 days before randomization) with heparin therapy or oral anti coagulation
* Gastrointestinal bleed or major surgery within 3 months
* Planned or likely revascularization (any angioplasty or vascular surgery) within the next 3 months (if clinically indicated, vascular imaging should be performed prior to randomization whenever possible)
* Scheduled for surgery or interventional treatment requiring study drug cessation
* Qualifying TIA or minor stroke induced by angiography or surgery
* Severe non-cardiovascular comorbidity with life expectancy \< 3 months
* Women of childbearing age not practicing reliable contraception who do not have a documented negative pregnancy test
* Currently receiving an investigational drug or device
B: Inclusion Criteria:

* Person who had a heart attack within 1 - 3 years ago and at least one additional risk factor: Age ≥ 65 years old, Diabetes requiring medication, Documented history of 2nd prior MI (\>1 year ago). Angiographic evidence of multivessel CAD, and / or Chronic, non-end stage renal dysfunction.
* Females of child-bearing potential must have a negative pregnancy test at enrollment
* Persons who are currently taking aspirin between 75 and 150 mg once daily

Exclusion Criteria:

* Persons who are being treated with agents inhibiting blood clotting if the agent cannot be stopped at study start
* Persons who have planned coronary, cerebrovascular, or peripheral arterial Revascularization (invasive surgery) at study start
* Persons with known bleeding disorders
* Persons who need chronic oral anticoagulant therapy or chronic low-molecular-weight heparin
* Persons with a history of ischemic stroke
* Persons with a history of intracranial bleeding at any time, a tumor or blood vessel abnormality in the brain and/or spinal cord at any time, a history of surgery involving the brain or spinal cord within the last 5 years, or a history of bleeding from the gastrointestinal tract (eg, esophagus, stomach, colon, rectum) within the last 6 months or a major surgery within the last 30 days.
* Persons considered to be at risk of bradycardic events unless already treated with a permanent pacemaker
* Persons who have had open heart surgery within the past 5 years, unless the person had a heart attack after the surgery
* Persons with known severe liver disease
* Persons with kidney failure requiring dialysis
* Persons with life expectancy \< 1 year
C: Inclusion Criteria:

Any one or more of the following:

Meet Angiographic criteria plus

* Systemic hypertension at baseline, or a history of hypertension
* Congestive heart failure at baseline, or a history of CHF
* Renal insufficiency at baseline, or a history of renal insufficiency
* Angina, or a history of angina

Exclusion Criteria:

* Less than 18 years old
* Contraindications to device/drug
D: Inclusion Criteria:

1. Are undergoing noncardiac surgery;
2. Are ≥ 45 years of age;
3. Are expected to require at least an overnight hospital admission after surgery; AND
4. Fulfill one or more of the following 5 criteria:

   * History of coronary artery disease
   * History of peripheral vascular disease
   * History of stroke
   * Undergoing major vascular surgery
   * Any 3 of the following 9 criteria:

     * undergoing major surgery (i.e. intraperitoneal, intrathoracic, retroperitoneal or major orthopedic surgery
     * history of congestive heart failure
     * transient ischemic attack
     * diabetes and currently taking an oral hypoglycemic agent or insulin
     * age ≥ 70 years
     * hypertension
     * serum creatinine \> 175 µmol/L (\> 2.0 mg/dL)
     * history of smoking within 2 years of surgery
     * undergoing urgent/emergent surgery

Exclusion Criteria:

1. Consumption of ASA within 72 hours prior to surgery
2. Hypersensitivity or known allergy to ASA or clonidine
3. Systolic blood pressure \< 105 mm Hg
4. Heart rate \< 55 beats per minute in a patient who does not have a permanent pacemaker
5. Second or third degree heart block without a permanent pacemaker
6. Active peptic ulcer disease or gastrointestinal bleeding within previous 6 weeks
7. Intracranial hemorrhage documented by neuro-imaging, in the 6 months prior to randomization. This does not include petechial hemorrhagic transformation of a primary ischemic stroke
8. Subarachnoid hemorrhage or epidural hematoma unless the event occurred more than 6 months prior to randomization and the offending aneurysm or arterial lesion has been repaired
9. Drug-eluting coronary stent in the year prior to randomization
10. Bare-metal coronary stent in the 6 weeks prior to randomization
11. Thienopyridine (e.g., clopidogrel, ticlopidine, prasugrel) or ticagrelor within 72 hours prior to surgery; or intent to restart a thienopyridine or ticagrelor during the first 7 days post-op; or currently taking an alpha-2 agonist, alpha methyldopa, monoamine oxidase inhibitors or reserpine;
12. Planned use - during the first 3 days after surgery - therapeutic dose anticoagulation or a therapeutic subcutaneous or intravenous antithrombotic agent
13. Undergoing intracranial surgery, carotid endarterectomy, or retinal surgery
14. Not consenting to participate in POISE-2 prior to surgery
15. Previously enrolled in POISE-2 Trial

Answer: D