Please assess the completion status of the following clinical trial:

Trial Title: Pregabalin in the Treatment of Pain Due to Diabetic Peripheral Neuropathy

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: DOUBLE
- Phase: PHASE4
- Number of Arms: None

Eligibility Criteria:
Inclusion Criteria:~* Adults with Type 1 or 2 diabetes~* Patients must have pain in their lower legs or feet due to painful diabetic neuropathy that has lasted for at least 3 months~Exclusion Criteria:~* Patients must not be in poor or unstable health.

- 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).