Please assess the completion status of the following clinical trial:

Trial Title: High Dose Vitamin C in Cardiac Surgery Patients

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: BASIC_SCIENCE
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: PHASE1
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Age ≥18 years~* Scheduled for elective non-emergent valve repair or replacement, or multi-vessel CABG surgery~* No known coagulopathy prior to surgery~Exclusion Criteria:~* Emergency cardiac surgery~* Ejection fraction \< 35%~* Presence of autoimmune disease or currently receiving immunosuppressant therapy~* History of renal calculi~* Renal dysfunction (pre-operative creatinine clearance \< 40 mL/min, or serum creatinine greater than 1.8 mg/dl)~* Known bleeding diathesis~* Active infection, cancer or tumor~* Prior history of atrial fibrillation~* Single CABG procedure (one involved coronary vessel)~* Prisoner~* Pregnant

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 70 Years
- Healthy Volunteers: f

Study Arms:
- Vitamin C (Type: EXPERIMENTAL): Intravenous ascorbic acid 50 mg/kg in 50 mL normal saline every six hours for 48 hours.
- Normal saline (Type: PLACEBO_COMPARATOR): Intravenous normal saline 50 mL every six hours for 48 hours

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