Please assess the completion status of the following clinical trial:

Trial Title: Medical Optimization of Management of Type 2 Diabetes Complicating Pregnancy (MOMPOD)

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: PHASE3
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Maternal age 18-45 years~* Singleton pregnancy with no known fetal anomalies~* Gestational age between 10weeks 0 days and 22 weeks 6 days by menstrual dating confirmed by ultrasound, or ultrasound alone~* Clinical diagnosis of preexisting T2DM requiring medical treatment (oral agent or insulin)~* Clinical diagnosis of diabetes diagnosed between 10 weeks and \< 20 weeks 6 days gestation~* Willing to start insulin therapy and discontinue oral hypoglycemic pills other than study pills~* Able to swallow pills~Exclusion Criteria:~* Clinical diagnosis of pre-existing renal disease, defined as creatinine \> 1.5 mg/dL~* Clinical history of lactic acidosis~* Known allergy to metformin~* Participation in another study that could affect primary outcome~* Delivery planned at non-MOMPOD study locations~* Unwillingness to use insulin treatment or follow prenatal care doctor's instructions for insulin and blood glucose monitoring

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

Study Arms:
- Treatment (Type: ACTIVE_COMPARATOR): Metformin 1000 mg twice a day
- Placebo (Type: SHAM_COMPARATOR): Placebo, identical to Metformin

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