Please assess the completion status of the following clinical trial:

Trial Title: Efficacy of Preoperative Administration of Paracetamol-codeine on Pain Following Impacted Mandibular Third Molar Surgery

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

Eligibility Criteria:
Inclusion Criteria:~* absence of systemic pathologies (ASA class I);~* non-smoker;~* not pregnant or lactating;~* good oral hygiene;~* no drug consumption for 10 days before the operation;~* bilateral impacted mandibular third molars with comparable position, depth and inclination;~* presence of the first and second molars;~* absence of painful symptoms and associated inflammatory or osteolytic pathologies in a radiographic examination;~* extraction difficulty index of \>7 according to Pederson's scale and a degree of IV (complex procedures) on a modified version of Parant's scale.~Exclusion Criteria:~-

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

Study Arms:
- analgesic group (Type: ACTIVE_COMPARATOR): preoperative oral dose of paracetamol-codeine
- placebo group (Type: PLACEBO_COMPARATOR): preoperative placebo (starch)

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