Please assess the completion status of the following clinical trial:

Trial Title: Clinical Study of TA-650 in Pediatric Patients With Ulcerative Colitis

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: PHASE3
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* Patients who have been diagnosed as ulcerative colitis at least 3 months prior to screening.~* Have active ulcerative colitis despite adequate conventional therapy.~Exclusion Criteria:~* Patients who have severe pancolitis.~* Patients who have undergone surgery for ulcerative colitis within 8 weeks before enrollment or who were judged to require surgery for ulcerative colitis at enrollment.~* Patients who have a history of treatment with infliximab or other biologic products (anti-TNFα agents, anti-IL-6 agents, etc.).

- Gender: ALL
- Minimum Age: 6 Years
- Maximum Age: 17 Years
- Healthy Volunteers: f

Study Arms:
- TA-650 (Type: EXPERIMENTAL): None

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