Please assess the completion status of the following clinical trial:

Trial Title: Efficacy & Safety of Seroquel Plus Mood Stabilizer in the Maintenance of Bipolar I Disorder

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: PREVENTION
- Time Perspective: None
- Masking: DOUBLE
- Phase: PHASE3
- Number of Arms: None

Eligibility Criteria:
Inclusion Criteria:~* A diagnosis of Bipolar I Disorder, Most recent episode Manic (296.4x), or Bipolar I Disorder, Most Recent Episode Depressed (296.5x), or Bipolar I Disorder, Most recent Episode Mixed (296.6x), with or without psychotic features, as defined by Diagnostic and Statistical Manual of Mental Disorders - Fourth Edition (DSM-IV)~* At least 1 manic, depressed, or mixed episode in the 2 years prior to the index episode.~* Able to understand and comply with the requirements of the study.~Exclusion Criteria:~* Diagnosis of an anxiety disorder as defined by DSM-IV, which was treated with medication within the past year.~* Known intolerance or lack of response to quetiapine fumarate or to the assigned mood stabilizer, as judged by the investigator.~* Previously randomized into this study or D1447C00126

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

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