Please assess the completion status of the following clinical trial:

Trial Title: Insulin Clamp Ancillary Study for Assessment of Insulin Resistance

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:~1. Meets eligibility criteria of the main study, Metformin Therapy for Overweight Adolescents With Type 1 Diabetes (NCT01881828).~Exclusion Criteria:~1. Low hemoglobin or hematocrit as defined by each local institution's rules for insulin clamps or if no institutional requirements a Hematocrit \<30% or hemoglobin \<10 gm/dL

- Gender: ALL
- Minimum Age: 12 Years
- Maximum Age: 19 Years
- Healthy Volunteers: f

Study Arms:
- Oral Placebo (Type: PLACEBO_COMPARATOR): A central pharmacy will compound a placebo to match the metformin tablets.~The placebo product will contain the following components:~* Micosolle™, silica based excipient~* Silicified Micro Crystalline Cellulose, National Formulary~* Safflower Oil, United States Pharmacopeia~* K-30 Povidone Powder~* Magnesium Stearate, National Formulary (Vegetable source)~* Fumed Silica, National Formulary
- Metformin (Type: EXPERIMENTAL): Metformin 2000 mg per day

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