Please assess the completion status of the following clinical trial:

Trial Title: Study Evaluating Novel Biomarkers of AKI (Acute Kidney Injury) in Post-operative Patients

Study Design Characteristics:
- Allocation: NON_RANDOMIZED
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: DIAGNOSTIC
- Time Perspective: None
- Masking: NONE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* ≥ 18 years~* High risk patients: General Surgery AKI Risk Index Class III, IV or V~* Major abdominal surgery~Exclusion Criteria:~* Ongoing acute kidney injury Stage 2/3~* History of kidney transplant

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Nephro Check Test (Type: EXPERIMENTAL): We take urine samples and analyse the level of \[TIMP-2\]●\[IGFBP-7\] using the NephroCheck Test to diagnose AKI
- serum creatinine measurement (Type: ACTIVE_COMPARATOR): This is the Golden standard to diagnose AKI

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