Please assess the completion status of the following clinical trial:

Trial Title: Study Comparing the Tolerability of Seroquel IR With Seroquel XR in Patients With Bipolar Depression

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: None
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* DSM-IV-TR documented bipolar I or bipolar II, most recent episode depressed~* Outpatient status as enrollment~Exclusion Criteria:~* Other than bipolar disorder under study, patients must not have another current, major disorder that is symptomatic or has required treatment within 6 months of enrollment.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 50 Years
- Healthy Volunteers: f

Study Arms:
- Quetiapine Immediate Release (IR) (Type: ACTIVE_COMPARATOR): Quetiapine 25, 100, 200 and 300 mg
- Quetiapine Extended Release (XR) (Type: ACTIVE_COMPARATOR): Quetiapine 50, 200, 300

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