Please assess the completion status of the following clinical trial:

Trial Title: Controlled Sedation for Cataract Surgery

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

Eligibility Criteria:
Inclusion Criteria:~* subject has cataract,~* subject older than 18 years,~* local anesthesia and sedation.~Exclusion Criteria:~* general anesthesia,~* history of consumption of sedatives.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: t

Study Arms:
- Remifentanil (Type: ACTIVE_COMPARATOR): remifentanil and dexmedetomidine, 0.25 ng/mL, given intravenous, infusion, until surgery finished.
- Dexmedetomidine (Type: ACTIVE_COMPARATOR): dexmedetomidine and remifentanil, 0.125 mcg/kg/hour, given intravenous, infusion, until surgery finished

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