Please assess the completion status of the following clinical trial:

Trial Title: The Effects of Dexmedetomidine Dose on Motor Evoked Potentials

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

Eligibility Criteria:
Inclusion Criteria:~* Patients undergoing multi-level posterior spine fusions requiring motor evoked potential monitoring~Exclusion Criteria:~* Allergy to dexmedetomidine, propofol~* Conditions knows to make recording of motor evoked potentials difficult, including poorly controlled diabetes, severe peripheral neuropathy, severe myelopathy, or previous surgery during which motor evoked potentials were difficult to obtain~* Hepatic disease

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 80 Years
- Healthy Volunteers: f

Study Arms:
- High dose dexmedetomidine (Type: EXPERIMENTAL): Patients will receive dexmedetomidine 0.5 mcg/kg/hr plus propofol 50 mcg/kg/min
- Low dose dexmedetomidine (Type: ACTIVE_COMPARATOR): Patients will receive dexmedetomidine 1.0 mcg/kg/hr plus propofol 25 mcg/kg/min

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