Please assess the completion status of the following clinical trial:

Trial Title: Combination Metformin and Oral Contraception for Polycystic Ovary Syndrome (PCOS)

Study Design Characteristics:
- Allocation: 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:~* Ages 18-45, , 8 menstrual cycles annually, elevated serum free testosterone, normal thyroid function test and serum prolactin, exclusion of late onset adrenal hyperplasia~Exclusion Criteria:~* Diabetes mellitus, pulmonary, cardiac, renal, hepatic, cholestatic, neurologic, psychiatric, infectious, malignant diseases,history of breast cancer, history of Deep Vein Thrombosis, pregnancy and lactation.

- Gender: FEMALE
- Minimum Age: 18 Years
- Maximum Age: 45 Years
- Healthy Volunteers: t

Study Arms:
- 1 (Type: PLACEBO_COMPARATOR): Placebo tablet and birth control pill daily
- 2 (Type: ACTIVE_COMPARATOR): metformin 2000 mg and birth control pill daily

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