Please assess the completion status of the following clinical trial:

Trial Title: The Effects of Intravenous Dexmedetomidine on Spinal Anesthesia Using Low Dose Diluted Bupivacaine for Transurethral Resection of Prostate

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

Eligibility Criteria:
Inclusion Criteria:~* ASA class I or II~* Elective transurethral prostatectomy~* aged \> 20~Exclusion Criteria:~* Coagulation deficiency~* infection on the back~* Congestive heart failure or arrythmia~* Chronic alcoholic disease~* Antidepressants therapy

- Gender: MALE
- Minimum Age: 20 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- bupivacaine (Type: ACTIVE_COMPARATOR): 0.5% bupivacaine 1.2 mL + normal saline 0.8 mL = total 2 mL
- saline (Type: PLACEBO_COMPARATOR): None

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