Please assess the completion status of the following clinical trial:

Trial Title: MK0431A vs. Pioglitazone in Patients With Type 2 Diabetes Mellitus (0431A-066)

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:
General Inclusion Criteria:~* Patient has type 2 diabetes mellitus~* Patient is inadequately controlled and not on treatment with insulin or oral antihyperglycemic therapy~General Exclusion Criteria:~* Patient has a history of type 1 diabetes mellitus or history of ketoacidosis~* Patient was on antihyperglycemic agent therapy (oral or insulin) within the prior 12 weeks~* Patient was on \>4 weeks (cumulatively) of antihyperglycemic therapy (oral or insulin) over the prior 3 years

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 78 Years
- Healthy Volunteers: f

Study Arms:
- 1 (Type: EXPERIMENTAL): Sitagliptin phosphate (+) metformin hydrochloride
- 2 (Type: ACTIVE_COMPARATOR): pioglitazone

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