Please assess the completion status of the following clinical trial:

Trial Title: Study of Vitamin D3 Substitution to Patients With Primary Immunodeficiency

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: PREVENTION
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: PHASE1/PHASE2
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Age 18-75~* Increased number of respiratory tract infections~* At least 42 days of infections during 2008 or 2009~* S-25 OH vitamin D3 \< 250 nM~* Not planning a pregnancy during the coming year~* Accepting the use of contraceptives during 1 year~Exclusion Criteria:~* Continuous antibiotic treatment~* Hypercalcemia~* Sarcoidosis~* Kidney disease~* Tuberculosis~* Pregnancy~* Kidney stone~* Heart medication (glycosides)

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 75 Years
- Healthy Volunteers: f

Study Arms:
- Placebo (Type: PLACEBO_COMPARATOR): Placebo
- Vitamin D (Type: ACTIVE_COMPARATOR): Vigantol (cholecalciferol) 4000 IE/day

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