Please assess the completion status of the following clinical trial:

Trial Title: PMS of Trazenta on the Long-term Use as Add-on Therapy

Study Design Characteristics:
- Allocation: None
- Intervention Model: None
- Observational Model: COHORT
- Primary Purpose: None
- Time Perspective: PROSPECTIVE
- Masking: None
- Phase: None
- Number of Arms: None

Eligibility Criteria:
Inclusion criteria:~Patients with type 2 diabetes mellitus who are treated with anti-diabetic drugs and have never been treated with Trazenta® Tablets (linagliptin) before enrollment will be included.~Exclusion criteria:~None

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

Study Arms:
- Trazenta (Type: None): None

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