Please assess the completion status of the following clinical trial:

Trial Title: Oral Vitamin B12 Administration for Vitamin B12 Deficiency After Total Gastrectomy

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: PHASE2
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* Undergone total gastrectomy for gastric cancer~* Regular follow up is possible~* Serum vit,. B12 \< 200pg/ml~Exclusion Criteria:~* Has diseases other than stomach cancer~* Patients with other kinds of oral supplementation (multi-vitamins)

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

Study Arms:
- 1 (Type: EXPERIMENTAL): post total gastrectomized patients due to gastric cancer who has vitamin B12 deficiency - given oral vitamin B 12 supplementation

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