Please assess the completion status of the following clinical trial:

Trial Title: Efficacy of Antibiotics in Children With Acute Sinusitis: Which Subgroups Benefit?

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: PHASE3
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Meets criteria for persistent or worsening presentations of sinusitis~* Baseline score ≥9 on the Pediatric Rhinosinusitis Symptom Scale~Exclusion Criteria:~* Severe presentation (≥3 days of colored nasal discharge and fever ≥39°C~* Asthma/allergic rhinitis explains symptoms~* Allergy to amoxicillin-clavulanate~* Immotile cilia syndrome~* Cystic fibrosis~* Immunodeficiency~* Parental inability to read/write English or Spanish~* Other concurrent infection (e.g., pneumonia, acute otitis media, streptococcal pharyngitis)~* Systemic toxicity~* Wheezing on exam~* Antibiotic use within 15 days

- Gender: ALL
- Minimum Age: 2 Years
- Maximum Age: 11 Years
- Healthy Volunteers: f

Study Arms:
- Treatment A (Type: ACTIVE_COMPARATOR): Amoxicillin-clavulanate (90/6.4 mg/kg/d in 2 divided dosed for 10 days)
- Treatment B (Type: PLACEBO_COMPARATOR): Placebo made to match the study antibiotic will be taken bid orally for 10 days

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