Please assess the completion status of the following clinical trial:

Trial Title: Decrease of Lesions Induced by Mechanical Ventilation During ARDS

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

Eligibility Criteria:
Inclusion Criteria:~* severe ARDS with a PaO2 / FiO2 ratio ≤ 70 mmHg (for at least 2h) measured at PEEP\> 10 cmH2O and FiO2 = 1~* OR a severe ARDS with a PaO2 / FiO2\> 70 ratio but \<100 mmHg with a plateau pressure\> 35 cmH2O and a pH \<7.20~Exclusion Criteria:~* Patients with associated hemodynamic failure requiring veno-arterial ECMO~* Impossibility of setting up or contraindication to the placement of an esophageal tube~* Impossibility of realization of ventral decubitus~* Patient to receive corticosteroids during the first 48 hours following venous venous ECMO.~* Patients assisted by veno-venous ECMO for more than 24 hours.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 100 Years
- Healthy Volunteers: f

Study Arms:
- ultra-protective multimodal ventilation group (Type: EXPERIMENTAL): Patient will be diposed on ventral decubitus: one session at least more than 12 hours between inclusion and H48
- protective ventilation group (Type: NO_INTERVENTION): Patient will received usual care

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