Please assess the completion status of the following clinical trial:

Trial Title: A Dose-finding Study of OPC-6535 in Patients With Active Ulcerative Colitis

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: DOUBLE
- Phase: PHASE2
- Number of Arms: None

Eligibility Criteria:
Inclusion Criteria:~* Patients with active ulcerative colitis~* Patients who have been receiving an oral 5-ASA formulation at a fixed regimen and at a fixed dose~* Either inpatient or outpatient~Exclusion Criteria:~* Patients who have a history of intestinal resection (other than appendiceal resection)~* Patients who have a complication of malignant tumor~* Female patients who are pregnant, lactating, or possibly pregnant, or who wish to become pregnant during the study period

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 65 Years
- Healthy Volunteers: f

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