Please assess the completion status of the following clinical trial:

Trial Title: Evaluation of Gastrointestinal Symptoms and Quality of Life in Patients With Sphincter of Oddi Dysfunction

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:
Inclusion Criteria:~* over age 18~* suspected history and clinical features suggestive of sphincter of oddi dysfunction~Exclusion Criteria:~* prior history of endoscopic therapy for sphincter of oddi dysfunction~* no proven sphincter of oddi dysfunction on manometry

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

Study Arms:
- sphincter of oddi dysfunction (Type: None): endoscopic therapy vs conservative care

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