Please assess the completion status of the following clinical trial:

Trial Title: Randomized Trial Investigating Four Nasal CPAP Systems in the Management of Apnea of Prematurity

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: SINGLE
- Phase: None
- Number of Arms: None

Eligibility Criteria:
Inclusion Criteria:~* gestational age at birth \< 34 weeks~* postconceptional age and body weight at study ≤38 week and \>1000 g~* requirement for N-CPAP to treat AOP as judged by the attending neonatologist~Exclusion Criteria:~* congenital or chromosomal abnormalities~* acute infections~* intraventricular hemorrhage~* additional inspired oxygen to maintain pulse oximeter saturation SpO2 \>92%~* patent ductus arteriosus

- Gender: ALL
- Minimum Age: None
- Maximum Age: 14 Weeks
- Healthy Volunteers: f

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