Please assess the completion status of the following clinical trial:

Trial Title: Duration of Postoperative Antibiotic Prophylaxis in Facial Fractures

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

Eligibility Criteria:
Inclusion Criteria:~* Isolated orbital fracture, zygomatic fracture, mandibular fracture, or LeFort I/II/III fracture which requires surgical treatment~* Written informed consent obtained~Exclusion Criteria~* Need of intensive care treatment~* Presence of an acute bacterial infection~* Gunshot wounds~* Pathological fracture~* Skull base fracture with rhinoliquorrhea or intracranial emphysema~* History of malignancy or radiation to the head and neck area~* Known hypersensitivity, allergy to penicillin or other beta-lactam antibiotics~* Reduced body weight (\<40kg or BMI\<17), severe renal insufficiency (stage 4 according to the Kidney Disease Outcomes Quality Initiative (KDOQI))~* Insufficient patient compliance

- Gender: ALL
- Minimum Age: 16 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- 1 (Type: ACTIVE_COMPARATOR): Both groups receive amoxicillin/clavulanic acid 1.2 g intravenously every eight hours from admission up to 24 hours postoperatively. Group 1 then receives amoxicillin/clavulanic acid 625 mg orally every eight hours for four days.
- 2 (Type: PLACEBO_COMPARATOR): Both groups receive amoxicillin/clavulanic acid 1.2 g intravenously every eight hours from admission up to 24 hours postoperatively. Group 2 receives oral placebo using the same schedule for the same duration as group 1.

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