Please assess the completion status of the following clinical trial:

Trial Title: Apixaban for the Reduction of Thrombo-Embolism in Patients With Device-Detected Sub-Clinical Atrial Fibrillation

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: PREVENTION
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~1. Permanent pacemaker or defibrillator (with or without resynchronization) or insertable cardiac monitor capable of detecting SCAF~2. At least one episode of SCAF ≥ 6 minutes in duration but no single episode \> 24 hours in duration at any time prior to enrollment. Any atrial high rate episode with average \> 175 beats/min will be considered as SCAF. No distinction will be made between atrial fibrillation and atrial flutter. SCAF requires electrogram confirmation (at least one episode) unless ≥ 6 hours in duration.~3. Age ≥ 55 years~4. Risk Factor(s) for Stroke:~Previous stroke, TIA or systemic arterial embolism OR Age at least 75 OR Age 65-74 with at least 2 other risk factors OR Age 55-64 with at least 3 other risk factors~Other risk factors are:~* hypertension~* CHF~* diabetes~* vascular disease (i.e. CAD, PAD or Aortic Plaque)~* female~Exclusion Criteria:~1. Clinical atrial fibrillation documented by surface ECG (12 lead ECG, Telemetry, Holter) lasting ≥ 6 minutes, with or without clinical symptoms~2. Mechanical valve prosthesis, deep vein thrombosis, recent pulmonary embolism or other condition requiring treatment with an anticoagulant~3. Contra-indication to apixaban or aspirin:~   1. Allergy to aspirin or apixaban~  2. Severe renal insufficiency (creatinine clearance must be calculated in all patients; any patient with either a serum creatinine \> 2.5 mg/dL \[221 µmol/L\] or a calculated creatinine clearance \< 25 ml/min is excluded)~  3. Serious bleeding in the last 6 months or at high risk of bleeding (this includes, but is not limited to: prior intracranial hemorrhage, active peptic ulcer disease, platelet count \< 50,000/mm3 or hemoglobin \< 10 g/dL, recent stroke within past 10 days, documented hemorrhagic tendencies or blood dyscrasias)~  4. Moderate to severe hepatic impairment~  5. Ongoing need for combination therapy with aspirin and clopidogrel (or other combination of two platelet inhibitors)~  6. Meets criteria for requiring lower dose of apixaban AND also has ongoing need for strong inhibitors of CYP 3A4 or P-glycoprotein (e.g., ketoconazole, itraconazole, ritonavir or clarithromycin)~  7. Ongoing need for strong dual inducers of CYP 3A4 or P-glycoprotein (e.g., rifampin, carbamazepine, phenytoin, St. John's wort)~4. Received an investigational drug in the past 30 days~5. Participants considered by the investigator to be unsuitable for the study for any of the following reasons:~   1. Not agreeable for treatment with either aspirin or apixaban or anticipated to have poor compliance on study drug treatment~  2. Unwilling to attend study follow-up visits~  3. Life expectancy less than the expected duration of the trial2 years due to concomitant disease~6. Women who are pregnant, breast-feeding or of child-bearing potential without an acceptable form of contraception in place (sterilization, hormonal contraceptives, intrauterine device, barrier methods or abstinence)

- Gender: ALL
- Minimum Age: 55 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Control (Type: ACTIVE_COMPARATOR): Aspirin 81 mg once daily
- Intervention (Type: EXPERIMENTAL): Apixaban, 5 mg twice daily (or 2.5 mg twice daily if 2 or more of: age \> 80, weight ≤ 60 kg or serum creatinine ≥ 133 mmol/L)

Based on this trial design, predict the completion outcome and termination type (if applicable).

Answer: outcome: complete