Please assess the completion status of the following clinical trial:

Trial Title: Vitamin C for Prevention of Urinary Tract Infections in the Spinal Cord Injured

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

Eligibility Criteria:
Inclusion Criteria:~* spinal cord injury~* 3 or more episodes of UVI over previous 2 years~Exclusion Criteria:~* pregnancy~* age \<18~* continuous use of antibiotics, hippuric acid or crane berry juice

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- 1 vitamin C (Type: ACTIVE_COMPARATOR): Vitamin C 1g bid
- 2 (Type: NO_INTERVENTION): Usual Care

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