Please assess the completion status of the following clinical trial:

Trial Title: A Phase 2b Study of DU-176b, Prevention of Venous Thromboembolism in Patients After Total Knee Arthroplasty

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: PREVENTION
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: PHASE2
- Number of Arms: 5.0

Eligibility Criteria:
Inclusion Criteria:~* Patients undergoing unilateral total knee arthroplasty~Exclusion Criteria:~* risks of hemorrhage~* thromboembolic risks~* weight less than 40 kg~* pregnant, suspect pregnancy, or subjects who want to become pregnant

- Gender: ALL
- Minimum Age: 20 Years
- Maximum Age: 84 Years
- Healthy Volunteers: f

Study Arms:
- DU-176b 5 mg (Type: EXPERIMENTAL): None
- DU-176b 15 mg (Type: EXPERIMENTAL): None
- DU-176b 30 mg (Type: EXPERIMENTAL): None
- DU-176b 60 mg (Type: EXPERIMENTAL): None
- Placebo (Type: PLACEBO_COMPARATOR): None

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