Please assess the completion status of the following clinical trial:

Trial Title: Extubation Readiness Study in Very Low Birthweight Infants

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

Eligibility Criteria:
Inclusion Criteria:~* Birthweight \>500g and\<1500g.~* Postmenstrual age \<34 weeks~* Mechanically ventilated \>48 hours~* Never successfully extubated~Exclusion Criteria:~* Congenital heart disease (other than patent ductus arteriosus (PDA), patent foramen ovale (PFO), and restrictive ventricular septal defect (VSD)~* Known or suspected airway anomalies~* Severe congenital malformations~* Need to remain intubated for other reasons (i.e. having surgery)~* Has met SBT criteria on previous calendar day (after 48 hrs of ventilation, PIP≤18, PEEP≤6, FiO2≤40%, Rate≤30, PS≤8)

- Gender: ALL
- Minimum Age: 48 Hours
- Maximum Age: 14 Weeks
- Healthy Volunteers: f

Study Arms:
- Spontaneous breathing trial (Type: EXPERIMENTAL): The spontaneous breathing trial will determine the extubation readiness of the subject.
- Usual care (Type: NO_INTERVENTION): Subjects will be extubated using usual care, without the use of the spontaneous breathing trial.

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