Please assess the completion status of the following clinical trial:

Trial Title: Effect of Dexmedetomidine on Nol-Index Guided Remifentanil Analgesia

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

Eligibility Criteria:
Inclusion Criteria:~- American Society of Anesthesiologists (ASA) grades 1-2 undergoing scheduled stomatological, cervical, and thyroid surgery anticipated to last at least two hours~Exclusion Criteria:~* ASA score \>2~* Preoperative organ dysfunction~* Patients with non-regular cardiac rhythm~* Implanted pacemakers~* Emergent surgery~* Pregnancy or lactation~* Allergy or intolerance to any of the study drugs~* Participation in another interventional study~* Patient refusal

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

Study Arms:
- Remifentanil Analgesia (Type: ACTIVE_COMPARATOR): Continuous intraoperative analgesia with remifenanil + 0.9% sodium chloride
- Remifentanil and Dexmedetomidine Analgesia (Type: ACTIVE_COMPARATOR): Continuous intraoperative analgesia with remifenanil + dexmedetomidine

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