Please assess the completion status of the following clinical trial:

Trial Title: Performance of Continuous Glucose Monitoring Systems at Altitude

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: PREVENTION
- Time Perspective: None
- Masking: SINGLE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Age 18 - 60 years.~* No known medical conditions or concomitant medication.~Exclusion Criteria:~* Pregnancy.~* Marine diving in preceding 24 hours.~* Unable to provide written informed consent.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 60 Years
- Healthy Volunteers: t

Study Arms:
- CGMS at sea level. (Type: ACTIVE_COMPARATOR): To assess reliability of continuous glucose monitoring system at sea level whilst subject undergo's a hyperinsulinaemic glucose clamp study.
- CGMS reliability at simulated 8000 feet. (Type: ACTIVE_COMPARATOR): To assess reliability of continuous glucose monitoring system at a simulated altitude of 8,000 feet whilst the participant undergo's a hyperinsulinaemic glucose clamp study.

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