Please assess the completion status of the following clinical trial:

Trial Title: Cryoanalgesia vs. Epidural in the Nuss Procedure

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

Eligibility Criteria:
Inclusion Criteria:~* scheduled for Nuss procedure for pectus excavatum correction~* at least 13 years old at the time of the procedure~Exclusion Criteria:~* age less than 13 years at time of procedure~* use of pain medication prior to procedure~* pectus carinatum, Poland's syndrome, or any chest wall anomaly other than pectus excavatum~* previous repair of pectus excavatum by any technique~* previous thoracic surgery~* congenital heart disease~* bleeding dyscrasia~* major anesthetic risk factors or history of previous problem with anesthesia~* pregnancy~* inability to communicate in English

- Gender: ALL
- Minimum Age: 13 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Cryoanalgesia (Type: EXPERIMENTAL): Cryoanalgesia performed thoracoscopically under general anesthesia by the patient's surgeon at the time of the Nuss procedure
- Thoracic Epidural (Type: ACTIVE_COMPARATOR): Thoracic epidural (ropivicaine, fentanyl).

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