Please assess the completion status of the following clinical trial:

Trial Title: Optimal Handling of Common Bile Duct Calculus, a Prospective Study

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

Eligibility Criteria:
Inclusion Criteria:~* cholecystectomy~Exclusion Criteria:~* Ongoing icterus or pancreatitis~* History of anamneses pancreatitis/icterus~* Allergy against x-ray contrast~* Stones more than 6 mm in ductus~* No passage of contrast to duodenum~* malignant

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

Study Arms:
- Biliary calculus remain (Type: EXPERIMENTAL): biliary calculus, less than or equal to 6 mm, remains
- Biliary calculus removed (Type: EXPERIMENTAL): biliary calculus, less than or equal to 6 mm, removed

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