Please assess the completion status of the following clinical trial:

Trial Title: Weaning From Mechanical Ventilation Using Permissive Hypercarbia

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

Eligibility Criteria:
Inclusion Criteria:~* Adult (\> 18 yo) patients in the intensive care units at the Hershey Medical Center who are on mechanical ventilation~* and whose clinical course permits weaning from mechanical ventilation~* and are felt to have risk factors for difficult weaning. (Risk factors will include patients with rib fractures, pulmonary contusions, obesity (BMI \>30), or history of COPD or other significant lung disease.)~* all patients will have failed (rapid shallow breathing index \>105) a 30 minute spontaneous breathing test.~Exclusion Criteria:~* Overt signs of sepsis including: a temperature \> 38.5F, white blood cell count \> 14000, systolic blood pressure \< 100 mmHg,~* intracranial hypertension (ICP \> 18 or based upon clinical exam and/or history),~* or pulmonary hypertension (by history or PAsys \> 40 mmHg).~* or history of recent(past 6 mos)MI

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

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