Please assess the completion status of the following clinical trial:

Trial Title: Determination of the Optimal Spontaneous Breathing Trial During Weaning of Mechanical Ventilation

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 6.0

Eligibility Criteria:
Inclusion Criteria:~* ICU patient with invasive mechanical ventilation for at least 24 hours~* Physician decision to extubate and all criteria for ventilatory weaning must be present~* Resolution of disease acute phase for which the patient was intubated~* Conscious patient (Richmond Agitation-Sedation Scale (RASS) \> 0), no sedation~* Good coughing effort, good swallowing, positive leak test (\> 12% of tidal volume (VT))~* No important secretions~* No respiratory acidosis, adequate oxygenation (PaO2 / FiO2 \> 150 mmHg and CPAP ≤ 8)~* Adequate pulmonary function (respiratory rate (RR) ≤ 35, negative inspiratory force (NIF) \> 20 cmH2O, RR/VT \< 105)~* Stable cardiovascular status (heart rate (HR) \< 140 bpm, systolic blood pressure \> 90 mmHg, no or minimal vasopressors)~* If severe brain injury, the VISAGE score must be ≥ 3 (visual pursuit, good swallowing, GCS \> 10)~Exclusion Criteria:~* Obese patients with BMI ≥ 35 kg/m2~* Contraindication for nasogastric tube or esophageal manometric balloon placement~* Refusal of study participation or to pursue the study by the patient, no consent~* Pregnancy or breastfeeding~* Absence of coverage by the French statutory healthcare insurance system

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

Study Arms:
- T-piece and PSV 7 PEEP 0 and PSV 0 PEEP 0 (Type: EXPERIMENTAL): First T-piece trial for 15 min. After 10 min of rest, PSV 7 cmH2O and PEEP 0 cmH2O trial for 15 min. After 10 min of rest, PSV 0 cmH2O and PEEP 0 cmH2O trial for 15 min.
- T-piece and PSV 0 PEEP 0 and PSV 7 PEEP 0 (Type: EXPERIMENTAL): First T-piece trial for 15 min. After 10 min of rest, PSV 0 cmH2O and PEEP 0 cmH2O trial for 15 min. After 10 min of rest, PSV 7 cmH2O and PEEP 0 cmH2O trial for 15 min.
- PSV 0 PEEP 0 and PSV 7 PEEP 0 and T-piece (Type: EXPERIMENTAL): First PSV 0 cmH2O and PEEP 0 cmH2O trial for 15 min. After 10 min of rest, PSV 7 cmH2O and PEEP 0 cmH2O trial for 15 min. After 10 min of rest, T-piece trial for 15 min.
- PSV 0 PEEP 0 and T-piece and PSV 7 PEEP 0 (Type: EXPERIMENTAL): First PSV 0 cmH2O and PEEP 0 cmH2O trial for 15 min. After 10 min of rest, T-piece trial for 15 min. After 10 min of rest, PSV 7 cmH2O and PEEP 0 cmH2O trial for 15 min.
- PSV 7 PEEP 0 and T-piece and PSV 0 PEEP 0 (Type: EXPERIMENTAL): First PSV 7 cmH2O and PEEP 0 cmH2O trial for 15 min. After 10 min of rest, T-piece trial for 15 min. After 10 min of rest, PSV 0 cmH2O and PEEP 0 cmH2O trial for 15 min.
- PSV 7 PEEP 0 and PSV 0 PEEP 0 and T-piece (Type: EXPERIMENTAL): First PSV 7 cmH2O and PEEP 0 cmH2O trial for 15 min. After 10 min of rest, PSV 0 cmH2O and PEEP 0 cmH2O trial for 15 min. After 10 min of rest, T-piece trial for 15 min.

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