Please assess the completion status of the following clinical trial:

Trial Title: Effect of Atropine or Glycopyrrolate on the Prevention of Bradycardia During Sedation Using Dexmedetomidine in Adult Patients Undergoing Lower Extremity Surgery Under Spinal Anesthesia

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

Eligibility Criteria:
Inclusion Criteria:~1. Patients 65 years or older undergoing total knee replacement surgery under spinal anesthesia.~2. ASA class 1-3~Exclusion Criteria:~1. Patients with coagulation abnormalities~2. End organ diseases of liver, lung or kidney~3. Severe aortic stenosis~4. High degree AV block~5. Heart failure~6. Patients on MAO inhibitors~7. History of seizures or epilepsy~8. Glaucoma

- Gender: ALL
- Minimum Age: 20 Years
- Maximum Age: 60 Years
- Healthy Volunteers: f

Study Arms:
- Atropine group (Type: ACTIVE_COMPARATOR): Patients that receive atropine 0.01 mg/kg (max 0.5mg) before spinal anesthesia
- Glycopyrrolate group (Type: ACTIVE_COMPARATOR): Patients that receive glycopyrrolate 0.004mg/kg (max 0.2 mg) before spinal anesthesia

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