Please assess the completion status of the following clinical trial:

Trial Title: A Protocol to Wean From Noninvasive Mechanical Ventilation

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

Eligibility Criteria:
Inclusion Criteria:~1. noninvasive mechanical ventilation \> 24 hours.~2. age \>18 years~Exclusion Criteria:~1. severe cerebraI，heart，hepatic and renal faiIure.~2. facial or cranial trauma or surgery.~3. facial abnormalities.~4. recent gastric or esophageal surgery.~5. active upper gastrointestinal bleeding.~6. large amount of sputum with weak cough ability~7. lack of co-operation.

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

Study Arms:
- protocol group (Type: ACTIVE_COMPARATOR): This group patients are weaned as the protocol which the investigators described.
- clinicians' order group (Type: OTHER): This group patients are weaned as the clinicians' order.

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