Please assess the completion status of the following clinical trial:

Trial Title: Dietary Control Alone Versus Dietary Control Plus Use of Proton Pump Inhibitors to Treat Pediatric Hoarseness

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

Eligibility Criteria:
Inclusion Criteria:~1. Healthy children with a diagnosis of dysphonia age 3-18 years.~2. Dysphonia must be present for at least one month duration.~3. May have vocal cord nodules present.~4. Pre-enrollment flexible fiberoptic laryngoscopy must not show any potentially life-threatening cause, including but not limited to laryngeal papillomatosis, congenital glottic webs, vocal cord paralysis, or benign and malignant neoplasms.~5. Must be able to cooperate with recording of voice for analysis(3 seconds of sustained vowel).~6. Caregiver must be able to read, write, and understand English.~7. Patient with history of diagnosed asthma must have their asthma well controlled and treated at the time of enrollment for study.~Exclusion Criteria:~1. Dysphonia must not be due to a potentially life-threatening cause, such as laryngeal papillomatosis, congenital glottic webs, vocal cord paralysis, or benign and malignant neoplasms. This will be determined by visualization with flexible fiberoptic laryngoscopy.~2. Dysphonia must not be due to an acute upper respiratory infection.~3. Must not have been treated with proton pump inhibitor medication in the past 12 months.~4. Inability of child to cooperate with recording of voice for analysis.~5. Inability of caregiver to read, write, and understand English.~6. Mental retardation, cognitive impairment, or developmental delay.~7. History of allergic reaction of any kind to lansoprazole or any other proton pump inhibitor.

- Gender: ALL
- Minimum Age: 3 Years
- Maximum Age: 18 Years
- Healthy Volunteers: f

Study Arms:
- Lansoprazole and dietary control (Type: ACTIVE_COMPARATOR): Lansoprazole and dietary control
- Placebo and dietary control (Type: PLACEBO_COMPARATOR): Dietary control and placebo

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