Please assess the completion status of the following clinical trial:

Trial Title: Extubation Failure Prevention in High Risk Patients by High-flow Conditioned Oxygen Therapy vs. Standard 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:~* Patients mechanically ventilated for \> 48 hours and at least one of the following:~* \>65 years~* cardiac failure as the primary indication of mechanical ventilation~* Chronic Obstructive Pulmonary Disease~* Severity score (APACHE II \>12 points) the extubation day~* Body Mass Index \>30~* inability to manage respiratory secretions~* 1 failed spontaneous breathing trial~* 1 comorbidity~* 7 days under mechanical ventilation~Exclusion Criteria:~* \<18 years~* tracheotomized patients~* recent facial or cervical trauma/surgery~* active gastro-intestinal bleeding~* lack of cooperation~* patients with any failed spontaneous breathing trial because of hypercapnia development.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 95 Years
- Healthy Volunteers: f

Study Arms:
- High Flow Conditioned Oxygen Therapy (Type: EXPERIMENTAL): Intervention: The Optiflow(R) device supplies oxygen in controlled concentrations and at high flow (from 10 to 70 liters/min) through special nasal cannulae. The device also humidifies the gases mixtures up to 100% relative humidity.
- Standard Oxygen Therapy (Type: ACTIVE_COMPARATOR): The standard way of oxygen supply after extubation is either by nasal cannulae at flow between 1 and 5 liters/min or by mask with controlled oxygen concentration from 24% to 50%.

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