The purpose of this study is to evaluate the pharmacokinetics of Saxagliptin, 5-hydroxy Saxagliptin, and Metformin in pediatric subjects with Type 2 diabetes mellitus (T2DM) following oral administration of Saxagliptin and Metformin XR fixed dose combination tablet and co-administration of Saxagliptin and Glucophage® (Metformin) IR tablets