Please assess the completion status of the following clinical trial:

Trial Title: Efficacy of Helium/Oxygen Compared to Air/Oxygen in Severe Exacerbation of Chronic Obstructive Pulmonary Disease (COPD)

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: PHASE3
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Patient with known or suspected COPD~* Patient presenting current exacerbation of COPD with hypercapnic acute respiratory failure~* Patient eligible for Non-Invasive Ventilation (NIV)~* Patient admitted in an ICU~Exclusion Criteria:~* Patient who had lung transplant~* Patient having a contraindication to NIV~* Patient with tracheostomy~* Patient requiring Oxygen flow rate \> 6 L/min or Inspired Oxygen Fraction (FIO2) \> 0.50~* Patient admitted in the ICU for more than 24 hours and/or having received NIV in ICU for more than 6 hours (in total) for the current exacerbation of COPD

- Gender: ALL
- Minimum Age: 35 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Helium/Oxygen (Type: EXPERIMENTAL): Helium/Oxygen 78%/22% will be administered for a maximum of 72 hours.
- Air/Oxygen (Type: ACTIVE_COMPARATOR): Air/Oxygen will be administered for a maximum of 72 hours.

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