Please assess the completion status of the following clinical trial:

Trial Title: Respiratory Drive on Obstructive Apnea

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

Eligibility Criteria:
Inclusion Criteria:~* Moderate to severe OSA Apnea Hypopnea Index \> 20/hr.~* Minimum oxygen saturation by pulse oximetry (SpO2) during events \>70% throughout sleep during the clinical sleep study~Exclusion Criteria:~* Neuromuscular disease.~* Obesity-hypoventilation syndrome.~* Chronic obstructive pulmonary disease.~* Pregnancy.~* Significant comorbidities:~  1. Dialysis-dependant renal failure~ 2. Severe asthma~ 3. Congestive~ 4. Heart failure~ 5. Previous stroke~* Recent (within 3 months) myocardial infarction or Active coronary ischemia event.

- Gender: ALL
- Minimum Age: 21 Years
- Maximum Age: 70 Years
- Healthy Volunteers: f

Study Arms:
- Dead space (Type: ACTIVE_COMPARATOR): Participant will sleep connected to a mask with added dead space half of the night
- room air (Type: SHAM_COMPARATOR): Participant will sleep connected to a mask open to rrom air, half of the night

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