Please assess the completion status of the following clinical trial:

Trial Title: Comparison of Airway Clearance Therapy in Cystic Fibrosis Using the Same VEST Therapy Device But With Different Settings

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: TRIPLE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~1. Diagnosis of CF established by sweat chloride \> 60 mmol/L.~2. Age older than 18 years.~3. History of chronic daily sputum production.~4. Currently on a home therapeutic regimen that includes some form of airway clearance performed with a HFCWO device at least once daily that also includes concomitant use of an inhaled mucolytic and inhaled bronchodilator.~5. FVC and FEV1 \> 40%-predicted, and with stable lung function (no greater than a 10% variation in lung function parameters over the preceding 3 months).~6. Evaluated at the University of Minnesota CF Center 3 or more times in the preceding 12 months.~Exclusion criteria:~1. Hospitalization for CF pulmonary complications in the 2 months preceding enrollment.~2. Hemoptysis \> 60 cc in a single episode in the 4 weeks preceding enrollment.~3. Chest pain requiring use of narcotic for pain control.~4. Current participation in another clinical trial.~5. Use of intravenous antibiotics for CF respiratory complications in the 2 months preceding enrollment.~6. No prior experience using HFCWO devices for airway clearance

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

Study Arms:
- HFCWC with higher pressure/variable frequency settings (Type: ACTIVE_COMPARATOR): Half patients randomly assigned to perform HFCWC therapy first with a higher pressure/variable frequency protocol. This entailed performing a 30 minute session with pressure of 10 and 5 minutes each at frequencies of 8,9, and 10 Hz followed by pressure of 6 and 5 minutes each at frequencies of 18, 19, and 20 Hz. This group subsequently crossed-over to the lower-pressure/mid-frequency HFCWC protocol after a washout period of 2 days. This entailed performing a HFCWC session using a pressure of 5 and frequency of 12 Hz for the entire 30 minute session. The other half of subjects were randomly assigned to perform the lower-pressure/mid-frequency protocol first followed by the higher pressure/mixed-frequency after the 2 day washout period
- HFCWC with lower pressure/mid-frequency settings (Type: ACTIVE_COMPARATOR): lower-pressure/mid-frequency protocol first followed by the higher pressure/mixed-frequency

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