Please assess the completion status of the following clinical trial:

Trial Title: Dexmedetomidine and IV Acetaminophen for the Prevention of Postoperative Delirium Following Cardiac Surgery

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: FACTORIAL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: TRIPLE
- Phase: PHASE4
- Number of Arms: 4.0

Eligibility Criteria:
Inclusion Criteria:~* Patients ≥ 60 years of age~* Undergoing CABG with/without valve (aortic and/or mitral) procedure requiring bypass~Exclusion Criteria:~* Pre-operative Left Ventricular Ejection Fraction (LVEF) \< 30%~* Emergent or urgent procedures, aortic surgery~* Pre-existing cognitive impairment (defined based on a short screening assessment), Parkinson's disease, Alzheimer's disease, recent seizures (\<3 months)~* Prophylactic medications for cognitive decline~* Serum creatinine \> 2 mg/dl~* Liver dysfunction (liver enzymes \> 4x the baseline, since patients will have a baseline liver function tests), history and exam suggestive of jaundice~* Known history of alcohol or drug abuse (\>10 drinks per week)~* Hypersensitivity to any of the study drug and percutaneous procedures~* Non-English speaking

- Gender: ALL
- Minimum Age: 60 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- IV acetaminophen & IV propofol (Type: EXPERIMENTAL): 20-100 µg/kg/min IV propofol given for 4-6 hours before the patients are woken up in the ICU~1g IV acetaminophen every 6 hours for 48 hours during the first 2 days postoperatively
- IV acetaminophen & IV dexmedetomidine (Type: EXPERIMENTAL): A loading infusion of 0.5 - 1 µg/kg given over 10 minutes will be administered. After the loading infusion, a maintenance infusion of 0.1-1.4 µg/kg/hr will be initiated.~1 g IV acetaminophen every 6 hours for 48 hours during the first 2 days postoperatively
- IV propofol & placebo (Type: ACTIVE_COMPARATOR): 20-100 µg/kg/min IV propofol given for 4-6 hours before the patients are woken up in the ICU Volume of the placebo (saline) will match that of IV acetaminophen at 100ml 0.9% NaCl.
- IV dexmedetomidine & placebo (Type: ACTIVE_COMPARATOR): 0.1-1.0 µg/kg/hour IV dexmedetomidine given for 4-6 hours before the patients are woken up in the ICU Volume of the placebo (saline) will match that of i.v. acetaminophen at 100ml 0.9% NaCl.

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