Please assess the completion status of the following clinical trial:

Trial Title: PEEP Mask for Tracheobronchomalacia-Induced Cough

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* Age ≥18 years~* Visualization of ≥50% collapse of the trachea or mainstem bronchus on CT scan or bronchoscopy~* No upper or lower respiratory infection within 4 weeks~* Having capacity to provide legal written informed consent~Exclusion Criteria:~* History of tracheobronchoplasty or chronic tracheal stenting~* Current tracheostomy~* History of external chest trauma~* History of:~  * Active treatment for Lung cancer~ * Lung transplantation~ * Unstable congestive heart failure~ * History of spontaneous pneumothorax~* Other medical conditions that interfere with participation in the study~* Pregnant women

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

Study Arms:
- nPEP Recipients (Type: EXPERIMENTAL): Single-patient, adjustable expiratory resistance device that provides positive pressure (5 to 20 cm H2O) during expiration

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