Please assess the completion status of the following clinical trial:

Trial Title: Activity and Metformin Intervention in Obese Adolescents

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: PREVENTION
- Time Perspective: None
- Masking: SINGLE
- Phase: PHASE4
- Number of Arms: 4.0

Eligibility Criteria:
Inclusion Criteria:~* Obese adolescents defined as BMI greater than the 95th percentile for age and gender~* Metformin naive subjects~Exclusion Criteria:~* Elevated fasting plasma glucose ≥ 6.0 mmol/L~* 2 hour plasma glucose ≥ 11.1 mmol/L after a standard glucose load~* A1C \> 6.0%~* Medication other than over the counter drugs, oral contraceptive pill or thyroid hormone replacement~* Smoking~* Pregnancy~* Renal insufficiency (serum creatinine \> the upper limit of normal)~* Hepatic dysfunction (\> 1.5 times the upper limit of normal for AST and ALT)~* Latex Allergy~* Hypersensitivity to metformin or its ingredients~* Breast feeding~* Subjects with a history of lactic acidosis~* Abnormal creatinine clearance~* HIV, HBV, and HCV infections~* Drug and alcohol abuse~* Severe mental disorders~* Subjects who are planning radiologic exams involving in i.v. injection of iodinated contract materials~* Participation in another clinical trial~* Significant history or presence of cardiovascular, pulmonary, gastrointestinal, immunologic, endocrine, neurologic disorders~* Malignant diseases~* Previous exposure to any pharmaceutical antidiabetic agent

- Gender: ALL
- Minimum Age: 10 Years
- Maximum Age: 16 Years
- Healthy Volunteers: t

Study Arms:
- Metformin, Standard exercise (Type: ACTIVE_COMPARATOR): Lifestyle intervention with metformin and standard exercise program.
- Placebo, Standard exercise (Type: PLACEBO_COMPARATOR): Lifestyle intervention with placebo and standard exercise program
- Metformin, Intensive exercise (Type: ACTIVE_COMPARATOR): Lifestyle intervention with metformin and intensive exercise
- Placebo, Intensive exercise (Type: PLACEBO_COMPARATOR): Lifestyle intervention with placebo and intensive exercise program.

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