Please assess the completion status of the following clinical trial:

Trial Title: MK0431/ONO-5435 Phase III Clinical Trial -Add-on to Voglibose Study for Patients With Type 2 Diabetes Mellitus (MK0431-104)

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: DOUBLE
- Phase: PHASE3
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Japanese Patients With Type 2 Diabetes Mellitus, Who Have Inadequate Glycemic Control On Diet/Exercise Therapy And Voglibose Monotherapy~Exclusion Criteria:~* Patients Have A History Of Type 1 Diabetes Mellitus

- Gender: ALL
- Minimum Age: 20 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Sitagliptin/Sitagliptin (Type: EXPERIMENTAL): None
- Placebo/Sitagliptin (Type: EXPERIMENTAL): None

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