Please assess the completion status of the following clinical trial:

Trial Title: Response to RSD1235 Compared to Placebo in Subjects With Atrial Arrhythmia After Heart Surgery

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

Eligibility Criteria:
Inclusion Criteria:~* Documented atrial arrhythmia after valvular and/or coronary artery bypass graft surgery~Exclusion Criteria:~* Unstable Class IV heart failure

- 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).