Please assess the completion status of the following clinical trial:

Trial Title: Chronic Sildenafil for Severe Diaphragmatic Hernia

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:~* Congenital diaphragmatic hernia~* 10-42 days (d) of age~* Significant illness severity as demonstrated by:~* Receiving assisted ventilation and~  * FiO2 \>= 0.40 at 10-14d of age, or~ * FiO2 \>= 0.40 for \>=48hours at 15-27d of age, or~ * FiO2 \>= 0.35 at 28-42d of age~* Or, need for extracorporeal support at \>=10d of age~* Or, estimated pulmonary arterial or right ventricular systolic pressure of \>= 2/3 systemic pressure at 14-42d of age~Exclusion Criteria:~* Structural congenital heart disease (other than patent ductus arteriosus or patent foramen ovale/atrial septal defect \[ASD\] or non-hemodynamically significant ventricular septal defect \[VSD\])~* Sildenafil contraindicated (until condition resolves):~  * Unable to absorb oral medication, or~ * Unstable systemic blood pressure, or~ * Receiving a drug that may interfere with sildenafil metabolism, or~ * Renal insufficiency~ * Hepatic insufficiency Previous use of sildenafil

- Gender: ALL
- Minimum Age: 10 Days
- Maximum Age: 42 Days
- Healthy Volunteers: f

Study Arms:
- 1 (Type: EXPERIMENTAL): Sildenafil x 45 days
- 2 (Type: PLACEBO_COMPARATOR): Placebo x 45 d

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