Please assess the completion status of the following clinical trial:

Trial Title: Perioperative Fluid Management in Patients Receiving Major Abdominal Surgery - Effects of Normal Saline Versus an Acetate Buffered Balanced Infusion Solution on the Necessity of Catecholamines for Cardiocirculatory Support

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* All patients scheduled for open elective major abdominal surgery and expected to last a minimum of 2 hours will be included in the study.~(Major abdominal surgery includes all gynecological, urological and general surgical operations requiring laparotomy)~Exclusion Criteria:~* Patients younger than 18 years of age~* Patients unable to give informed consent~* Pregnancy or breastfeeding~* Patients transferred form the intensive care unit to the operating theater~* Patients with an already established catecholamine therapy~* Emergency operation~* Chronic inflammatory diseases (chronic inflammatory rheumatoid diseases, chronic inflammatory renal diseases, chronic inflammatory infectious diseases, chronic inflammatory bowel diseases, chronic liver disease with signs of liver insufficiency)~* Severe cardiovascular disease (heart disease with an ejection fraction below 30%, instable coronary syndromes, severe valvular disease)~* Any signs of infection or sepsis~* Any contraindication for oesophageal Doppler monitoring (oesophageal and aortic pathology, planned oesophageal resection)~* Renal insufficiency with a glomerular filtration rate below 30ml/min~* Patients with additional epidural anesthesia are excluded from the study if epidural anesthesia is planned to be used for analgesia intraoperatively

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

Study Arms:
- NaCl 0.9% BBraun (normale saline) (Type: ACTIVE_COMPARATOR): 154mmol/l sodium, 154mmol/l chloride
- Elo-Mel Isoton (balanced acetat-based infusate) (Type: ACTIVE_COMPARATOR): sodium 140mmol/l, potassium 5.0mmol/l, calcium 2.5mmol/l, magnesium 1.5mmol/l, chlorid 108mmol/l, acetate 45mmol/l

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