Please assess the completion status of the following clinical trial:

Trial Title: The Effect of Nimodipine on the Postoperative Cognitive Dysfunction

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:~* Glascow coma scale GCS 15 preoperatively~* American Society of Anesthesiologists ASA risk I - III~* planned brain surgery~* duration of procedure up to 4 hours.~Exclusion Criteria:~* blood pressure below 130/80 torr preoperatively~* previous vascular surgery~* concomitant use of antiepileptic drugs, rifampicin~* allergy to nimodipine~* known liver cirrhosis

- Gender: ALL
- Minimum Age: 60 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Nimodipine group (Type: EXPERIMENTAL): 1 tbl of 30 mg nimodipine will be administered orally with premedication
- Control group (Type: EXPERIMENTAL): 1 tbl of placebo will be administered orally with premedication

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