Please assess the completion status of the following clinical trial:

Trial Title: Peripheral Oxygen Saturation (SpO2) Directed Oxygen Therapy

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

Eligibility Criteria:
Inclusion Criteria:~* aged 18 years or older and admitted into ICU, with expected stay in ICU more than 72 hours or longer.~Exclusion Criteria:~* under 18 years old, expected stay in ICU less than 72 hours, unconsented inclusion, ICU readmission, patients with acute exacerbation of chronic obstruction disease, patients with severe acute respiratory distress syndrome (defined as PaO2/FiO2 ≤ 100mmHg and PEEP ≥10cmH2O), decision to withhold life-sustaining treatment, physician forgetting to screen during 12 hours after admission, pregnancy, patients with acute myocardial infarction, paraquat poisoning and patients on extracorporeal membrane oxygenation (ECMO) or planned to be on ECMO.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Low SpO2 group (Type: EXPERIMENTAL): SpO2 90-95%, with FiO2 as low as possible.
- High SpO2 group (Type: ACTIVE_COMPARATOR): SpO2 96-100%, with FiO2 no lower than 30%.

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