Please assess the completion status of the following clinical trial:

Trial Title: PADN to Treat Severe Obstructive Sleep Apnea

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

Eligibility Criteria:
Inclusion Criteria:~* Apnea hypopnea index more than 30, not tolerated or refused continuous positive airway pressure;~Exclusion Criteria:~* Acute coronary syndrome;~* Pregnant;~* Expected life less than 12 months;

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 65 Years
- Healthy Volunteers: f

Study Arms:
- Sham procedure (Type: SHAM_COMPARATOR): Patients in the sham group will take sham procedure like PADN.
- Pulmonary Arterial Denervation (Type: EXPERIMENTAL): Contrast pulmonary artery （PA) angiography was performed to localize the pulmonary artery bifurcation level and calculate the PA diameter.Once the anatomy was deemed acceptable, the radiofrequency ablation catheter was introduced into the distal bifurcation area of the main PA.This was then maneuvered within the PA to allow energy delivery to ensure that the electrodes were tightly in contact with the endovascular surface. About two to three ablations at 1-15 W for 240 seconds each point were performed in the distal bifurcation area of the main PA.

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