Please assess the completion status of the following clinical trial:

Trial Title: Metformin in High Responder Polycystic Ovary Syndrome (PCOS) Patients Undergoing IVF Cycles

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

Eligibility Criteria:
Inclusion Criteria:~* History of one previous cancelled cycle for high-risk of OHSS, or history of moderate/severe OHSS during their previous IVF cycle~* Infertility~* Polycystic ovary syndrome (PCOS)~* insulin resistance~* hyperandrogenism~Exclusion Criteria:~* BMI\>30 kg/m2~* age \>35 years~* FSH\>9UI/L

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

Study Arms:
- Experimental group (Type: EXPERIMENTAL): Patients receiving metformin pretreatment and co-administration
- Control group (Type: PLACEBO_COMPARATOR): Placebo

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