Please assess the completion status of the following clinical trial:

Trial Title: Effect of Acid Blockade on Microbiota and Inflammation in Cystic Fibrosis (CF)

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

Eligibility Criteria:
Inclusion Criteria:~1. Ages 10-21 years~2. Known diagnosis of CF based on sweat chloride \> 60 mEq/L or identification of two known Cystic fibrosis transmembrane conductance regulator (CFTR) mutations~3. Clinically stable pulmonary disease defined by~   1. clinical impression of patient's primary CF provider,~  2. no newly prescribed antibiotic treatments in the 30 days prior to enrollment, and~  3. relativly stable lung function with a forced expiratory volume in 1 second (FEV1) within 10% of baseline.~4. Male and female~5. Willing to participate in and comply with all study procedures, and~6. Willingness of the subject, parent or legally authorized representative to provide written informed consent.~7. Body Mass Index (BMI) \>25%~8. \>40% FEV1.~9. Willing to stop acid blockade medication for 6 weeks for aim 1.~10. Not on acid blockade for 6 weeks for aim 2.~Exclusion Criteria:~1. FEV1 less than 40% predicted~2. History of meconium ileus, distal intestinal obstructive syndrome, gastrointestinal surgery, or intestinal stricture.~3. CF liver disease with cirrhosis, gastric or esophageal varices.~4. Unwilling to participate in and comply with the study procedures.~5. Unwillingness of the subject, parent or legally authorized representative to provide written informed consent.~6. Unwilling or unable to swallow the capsule with the esophageal string test (EST).~7. Gelatin allergy.~8. History of esophageal surgery including fundoplication, or~9. Presence of a gastrostomy tube.~10. Confirmed or suspected diagnosis of Gastroesophageal Reflux Disease (GERD)~11. BMI \< 25%

- Gender: ALL
- Minimum Age: 10 Years
- Maximum Age: 21 Years
- Healthy Volunteers: f

Study Arms:
- ON PPI (Type: None): Subjects on proton pump inhibitor (PPI) treatment
- OFF PPI (Type: None): Subjects off proton pump inhibitor (PPI) treatment

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