Please assess the completion status of the following clinical trial:

Trial Title: Changes in Bile Acid Homeostasis and Stool Habits After Cholecystectomy

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: DIAGNOSTIC
- Time Perspective: None
- Masking: NONE
- Phase: PHASE4
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* planned elective cholecystectomy~Exclusion Criteria:~* small bowel resection~* right sided hemicolectomy~* known chronic diarrheal disease (celiac disease, lactose malabsorption, Inflammatory bowel diseases, incl microscopic colitis)~* pregnancy~* wish for pregnancy within next three months~* allergy to eggs~* allergy to constituents in Xenbilox (capsules with chenodeoxycholic acid)~* acute cholecystitis within two months~* chronic cholecystitis~* cirrhosis of the liver~* suspected obstructive choledocholithiasis~* icterus

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 80 Years
- Healthy Volunteers: f

Study Arms:
- Intervention (Type: EXPERIMENTAL): chenodeoxycholic acid 1250mg po.

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