Please assess the completion status of the following clinical trial:

Trial Title: The Edi Level and Cardiopulmonary Function Between HHHFNC and Unheated Humidified High-Flow Oxygen Mask in COPD

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

Eligibility Criteria:
Inclusion Criteria:~1. AE of COPD received intubation and ready to be weaning~2. P/F ratio \> 200 during SBT before extubation~Exclusion Criteria:~1. Unable to insert NG tube~2. Refuse to re-intubated when respiratory failure after extubation~3. Planned NIV use after extubation~4. Pregnancy

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

Study Arms:
- HHHFNC group (Type: EXPERIMENTAL): On HHHFNC FiO2 will setting as same as SBT before extubation Flow rate: 50L/min
- UHFOM group (Type: SHAM_COMPARATOR): On Aerosol mask FiO2 will setting as same as SBT before extubation Flow rate: 15L/min

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