Please assess the completion status of the following clinical trial:

Trial Title: The Study of Barrett's Esophagus: What Are the Factors of Progression

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:~* Sex: Male and female~* Age: 18-80 years~* Confirmed BE.~Exclusion Criteria:~* Columnar mucosa in the distal esophagus but no intestinal metaplasia on biopsy.~* Patients with BE who have undergone endoscopic ablation therapy or enrolled in chemoprevention trials. Since this is a natural history study, patients enrolled in intervention trials (e.g. those undergoing endoscopic ablation of their BE) will be excluded.

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

Study Arms:
- A (Type: None): Patients with confirmed Barrett's Esophagus

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