Please assess the completion status of the following clinical trial:

Trial Title: Impact of Vitamin A Supplementation on Immune System in Multiple Sclerosis Patients

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~Patients who have used interferon beta in last 3 months. Patients with 1-5 EDSS~Exclusion Criteria:~* Patients who have diseases which affect on Th1/Th2 balance such as asthma, active viral infections, and autoimmune diseases, OR~* Patients who have allergy to vitamin A compounds, OR~* Patients who have used vitamin supplements in last 3 months.

- Gender: ALL
- Minimum Age: 20 Years
- Maximum Age: 45 Years
- Healthy Volunteers: f

Study Arms:
- with Multiple Sclerosis/ vitamin A (Type: ACTIVE_COMPARATOR): Patients with MS confirmed Relapsing Remitting Type who receive 25000 IU/day vitamin A
- with Multiple Sclerosis/ placebo (Type: PLACEBO_COMPARATOR): Patients with Multiple Sclerosis confirmed Relapsing Remitting Type who receive 1 cap of placebo per day

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