Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Phase 3, Randomized, Double-Blind, Double-Dummy, Parallel Group, Multi-Center, Multi-National Study for Evaluation of Efficacy and Safety of Edoxaban (DU-176b) Versus Warfarin In Subjects With Atrial Fibrillation - Effective Anticoagulation With Factor Xa Next Generation in Atrial Fibrillation (ENGAGE - AF TIMI - 48)
Brief Summary: This study is to demonstrate the safety and efficacy profile, in two different dose regimens of Edoxaban (DU-176b), (an investigational new drug being tested for the prevention of stroke/systemic embolic events (SEE)), in individuals with atrial fibrillation. Patients will be randomized to one of three treatment groups: High Dose Regimen, Low Dose Regimen, \& Warfarin. The expected duration of the study is 24 months.


Options:
A: Inclusion Criteria:

* 21 years of age or older; male or female.
* Able to provide written informed consent.
* History of documented AF within the prior 12 months
* A moderate to high risk of stroke, as defined by CHADS2 index score of at least 2

Exclusion Criteria:

* Transient atrial fibrillation secondary to other reversible disorders
* Subjects with moderate or severe mitral stenosis, unresected atrial myxoma, or a mechanical heart valve
* Subjects with any contraindication for anticoagulant agents;
* Subjects with conditions associated with high risk of bleeding or have known or suspected hereditary or acquired bleeding disorders
* Females of childbearing potential including the following:

  * Females with a history of tubal-ligation
  * Females less than 2 years post-menopausal
B: For more information regarding BMS clinical trial participation, please visit www.BMSStudyConnect.com

Inclusion Criteria:

* Adults with either active or a history of non-valvular atrial fibrillation or flutter with the planned or existing use of an oral anticoagulant for prophylaxis of thromboembolism. In addition, subjects must have had an acute coronary syndrome or percutaneous coronary intervention with a stent within the prior 14 days
* Planned use of antiplatelet agents for at least 1 to 6 months
* Males and Females ≥ 18 years of age
* Women of childbearing potential must have a negative serum or urine pregnancy test within 24 hours prior to the start of study drug

Exclusion Criteria:

* Conditions other than atrial fibrillation that require chronic anticoagulation. (e.g. prosthetic mechanical heart valve)
* Severe renal insufficiency (serum creatinine \> 2.5 mg/dL or a calculated creatinine clearance \< 30 mL/min
* Patients with a history of intracranial hemorrhage
* Patients have had or will undergo Coronary arterial bypass graft (CABG) for their index acute coronary syndrome (ACS) event
* Patients with known ongoing bleeding and patients with known coagulopathies
* Any contraindications or allergies to VKA, apixaban, or to intended P2Y12 antagonists or to aspirin
C: 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
D: 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

Answer: A