Please assess the completion status of the following clinical trial:

Trial Title: Metformin and Folate Supplementation in Polycystic Ovary Syndrome (PCOS) Patients

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

Eligibility Criteria:
Inclusion Criteria:~* PCOS~Exclusion Criteria:~* age \<18 or \>35 years~* BMI \>35 kg/m2~* neoplastic, metabolic, hepatic, renal, and cardiovascular disorders~* Current or previous use of oral contraceptives, glucocorticoids, antiandrogens, ovulation induction agents, antidiabetic and anti-obesity drugs or other hormonal drugs.

- Gender: FEMALE
- Minimum Age: 18 Years
- Maximum Age: 35 Years
- Healthy Volunteers: f

Study Arms:
- Folate (Type: EXPERIMENTAL): Folate plus metformin
- Placebo (Type: PLACEBO_COMPARATOR): Placebo plus metformin

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