Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Randomized, Double-Blind, Placebo-Controlled, Multicenter, Dose-Escalation and Dose-Confirmation Study to Evaluate the Safety and Efficacy of Rivaroxaban in Combination With Aspirin Alone or With Aspirin and a Thienopyridine in Subjects With Acute Coronary Syndromes
Brief Summary: The purpose of this study is to evaluate the safety of rivaroxaban in patients with recent acute coronary syndrome (ACS) and to assess the ability of rivaroxaban to reduce the occurrence of death, myocardial infarction (heart attack), repeat myocardial infarctions, stroke, and ischemia (inadequate blood supply to a local area) in patients with recent ACS.


Options:
A: Inclusion criteria Patients with non-valvular atrial fibrillation (AF), at moderate to high risk of stroke, or systemic embolism with at least one additional risk factor (i.e. previous ischemic stroke, TIA, or systemic embolism, left ventricular dysfunction, age \>=75 years, age \>=65 with either diabetes mellitus, history of coronary artery disease or hypertension)

Exclusion criteria

1. Prosthetic heart valves requiring anticoagulation per se, or hemodynamically relevant valve disease that is expected to require surgical intervention during the course of the study
2. Severe, disabling stroke within the previous 6 months, or any stroke within the previous 14 days
3. Conditions associated with an increased risk of bleeding
4. Contraindication to warfarin treatment
5. Reversible causes of atrial fibrillation (e.g., cardiac surgery, pulmonary embolism, untreated hyperthyroidism).
6. Plan to perform a pulmonary vein ablation or surgery for cure of the AF
7. Severe renal impairment (estimated creatinine clearance \<=30 mL/min)
8. Active infective endocarditis
9. Active liver disease
10. Women who are pregnant, lactating, or of childbearing potential who refuse to use a medically acceptable form of contraception throughout the study
11. Anaemia (haemoglobin \<100g/L) or thrombocytopenia (platelet count \<100 x 109/L)
12. Patients who have developed transaminase elevations upon exposure to ximelagatran
13. Patients who have received an investigational drug in the past 30 days or are participating in another drug study
14. Patients considered unreliable by the investigator concerning the requirements for follow-up during the study and/or compliance with study drug administration, has a life expectancy less than the expected duration of the trial due to concomitant disease, or has any condition which in the opinion of the investigator, would not allow safe participation in the study (e.g., drug addiction, alcohol abuse)
15. Any known hypersensitivity to galactose if the warfarin used contains galactose.
B: Inclusion Criteria:

* Have symptoms suggestive of ACS that lasted at least 10 minutes at rest occurring within 7 days of randomization
* Have a diagnosis of ST-elevation myocardial infarction or non-ST elevation myocardial infarction/unstable angina (ie, chest pain or discomfort) (ST elevation is an abnormal finding from an ECG test) with at least 1 protocol-defined high risk feature

Exclusion Criteria:

* Active bleeding or high risk of bleeding or intracranial hemorrhage (bleeding within the skull enclosing the brain)
* Need for continued anticoagulant therapy
* Significantly impaired renal (kidney) or hepatic (liver) function
* Severe concomitant diseases such as cardiogenic shock (heart damage that results in insufficient blood supply to other parts or organs of the body), refractory ventricular arrhythmias (irregular contractions of the heart unresponsive to treatment), or any severe condition that would limit life expectancy of the patient to less than 6 months
C: Inclusion Criteria:

* Acute coronary syndrome (ACS)
* Clinically stable
* Receiving standard of care for ACS

Exclusion Criteria:

* Severe hypertension
* Active bleeding or high risk for major bleeding
* Hemoglobin \< 9 g/dL
D: Inclusion Criteria:

* A person who has been diagnosed with acute coronary syndrome and is to undergo a percutaneous coronary intervention.
* A person who is of the legal age of 18 and is mentally competent to provide a signed written informed consent.
* If a woman is of childbearing potential (i.e., before menopause), she must test negative for pregnancy and agree to use a reliable method of birth control.

Exclusion Criteria:

* A person who has had an ischemic stroke within the last 3 months or a hemorrhagic stroke at any time in the past.
* A person who has active internal bleeding or has a history of a bleeding disorder.
* Individuals who are at an increased risk of bleeding based on laboratory criteria evaluated by the treatment physician or on medication that can cause bleeding.
* A person who has liver disease; for example, cirrhosis.
* A person who has a condition such as alcoholism, mental illness, or is drug dependent.
* A person who has cardiogenic shock, a refractory ventricular arrhythmia, or congestive heart failure (class IV).

Answer: B