Please assess the completion status of the following clinical trial:

Trial Title: A Study to Investigate Cystic Fibrosis Pulmonary Exacerbations and the Lung Microbiome

Study Design Characteristics:
- Allocation: None
- Intervention Model: None
- Observational Model: COHORT
- Primary Purpose: None
- Time Perspective: PROSPECTIVE
- Masking: None
- Phase: None
- Number of Arms: None

Eligibility Criteria:
Pulmonary Exacerbation Cohort~Inclusion Criteria:~1. Diagnosis of CF (: a. One or more clinical features of CF AND (b or c); b. Sweat chloride \> 60 mEq/L; c. Two known CF mutations)~2. 3 or more admissions with an admitting diagnosis of pulmonary exacerbation, requiring IV antibiotics, within the 12 month period prior to study enrollment.~Clinically Stable Disease Cohort~Inclusion Criteria:~1. Diagnosis of CF (: a. One or more clinical features of CF AND (b or c); b. Sweat chloride \> 60 mEq/L; c. Two known CF mutations)~2. Age and gender matched to Pulmonary Exacerbation Cohort~3. No hospitalizations with an admitting diagnosis of pulmonary exacerbation, within the 12 month period prior to study enrollment.~Exclusion criteria for both groups includes:~1. History of intolerance or inability to tolerate the induced sputum protocol.~2. History of organ transplantation.~3. Any patient that in discretion of the investigators is not suitable.~4. Any clinically unstable participants.

- Gender: ALL
- Minimum Age: None
- Maximum Age: 22 Years
- Healthy Volunteers: f

Study Arms:
- Stable Disease (Type: None): 15 control stable disease participants
- Frequent Exacerbation Cohort (Type: None): 15 experimental frequent exacerbation cohort

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