Please assess the completion status of the following clinical trial:

Trial Title: Treatment of High Altitude Polycythemia by Acetazolamide

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: DOUBLE
- Phase: PHASE4
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* patients with Chronic mountain sickness and Hb \> 21g/dl~Exclusion Criteria:~* patients smokers~* patients with respiratory or cardiovascular or renal disease

- Gender: MALE
- Minimum Age: 18 Years
- Maximum Age: 65 Years
- Healthy Volunteers: f

Study Arms:
- acetazolamide (Type: PLACEBO_COMPARATOR): acetazolamide 250mg /day oral administration, for 6 months

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