A Multi-Center, Randomized, Double-Blind, Phase III Trial to Evaluate the Safety and Efficacy of Saxagliptin Co-administered With Dapagliflozin Compared to Saxagliptin or Dapagliflozin All Given as add-on Therapy to Metformin in Subject With Type 2 Diabetes

Inclusion Criteria:

1. Patients aged ≥18 years old at time of informed consent;

2. Patients with Type 2 diabetes mellitus (T2DM) defined as HbA1C≥7.5% to ≤10.0% at
screening visit;

3. Stable metformin therapy for at least 8 weeks prior to enrolment at a dose of ≥1500mg
per day;

4. BMI ≤45.0kg/m2 at Enrolment visit;

5. Fasting Plasma Glucose (FPG) ≤ 270mg/dl(15.0mmol/L) at the enrolment visit;

6. For Females Only: Women of childbearing potential (WOCBP) must be using an acceptable
method of contraception to avoid pregnancy throughout the study and for at least 4
weeks after the last dose of study medication in such a manner that the risk of
pregnancy is minimized.

Exclusion Criteria:

1. History of diabetes insipidus, Type 1 diabetes or Latent Autoimmune Diabetes of
Adults, diabetic ketoacidosis or hyperosmolar nonketotic coma and Symptoms of poorly
controlled diabetes that would preclude participation in this trial including but not
limited to marked polyuria and polydipsia with greater than 10% weight loss during the
3 months prior to Enrolment (Visit 1), or other signs and symptoms.

2. History of pancreatitis.

3. Administration of any antihyperglycaemic therapy, other than metformin, for more than
14 days (consecutive or not) during the 8 weeks prior to enrolment

4. Any use of DPP-4 inhibitor or SGLT-2 inhibitor within 8 weeks prior to enrolment.

5. Significant hepatic disease, including, but not limited to, chronic active hepatitis
and/or severe hepatic insufficiency and/or significant abnormal liver function,
including patients with Alanine transaminase (ALT) and/or Aspartate transaminase (AST)
≥3x ULN (Upper Limit of Normal)and/or Total Bilirubin ≥2.0x ULN. History of severe
hepatobiliary disease or hepatotoxicity with any medication. Positive serologic
evidence of current infectious liver disease, including patients who are known to be
positive for Hepatitis viral antibody ImmunoglobulinM (IgM), Hepatitis B surface
antigen, and Hepatitis C virus antibody.

6. Moderate or severe impairment of renal function [defined as Estimated Glomerular
Filtration Rate (eGFR) <60milliLitre/min/1.73 m2 (estimated by Modification in Diet
and Renal Disease (MDRD)) or serum creatinine ≥1.5mg/dL in males or ≥1.4mg/dL in
females]. Conditions of congenital renal glucosuria, history of unstable or rapidly
progressing renal disease.

7. History of any clinically significant disease or disorder which, in the opinion of the
investigator, may put the patient at risk because of participation in the study, may
influence the results, or may limit the patient's ability to participate in or
complete the study.