Primary objective:

The primary objective of this study is to define the dose response of Glymera as measured as the change from baseline in hemoglobin A1c (HbA1c) following 20 weeks of once-weekly dosing.

Secondary objectives:

The secondary objectives are to:

• Describe incidence, severity, and duration of reported gastrointestinal side effects of Glymera compared to active comparator;
• Compare change from baseline in HbA1c following 20 weeks of dosing compared to placebo and active comparator;
• Compare change from baseline in fasting plasma glucose (FPG) following 20 weeks of dosing compared to placebo and active comparator;
• Describe the frequencies of adverse events in the treatment groups; and
• Describe the above endpoints for the following subgroups of subjects according to baseline type 2 diabetes mellitus (T2DM) therapy: diet and exercise only, metformin only, sulfonylurea only, or metformin and sulfonylurea combination therapy.

Inclusion Criteria:

• Male and female subjects 18 to 75 years of age, inclusive;
• Body mass index ≤45 kg/m2;
• Diagnosed with T2DM with HbA1c of ≥7.0% and ≤11.0% and treated with diet and exercise alone, or with stable doses of metformin alone, sulfonylurea alone or metformin and sulfonylurea.

Exclusion Criteria:

• Currently taking or have taken within the last 6 months non-oral antihyperglycemic agents (eg, insulin, Byetta®, Bydureon®, or Victoza). Short-term use of insulin within this period will not be cause for exclusion if insulin was used during the treatment of an acute intercurrent illness;
• Known allergy to or serious adverse effect caused by an approved or investigational glucagon-like peptide-1 (GLP-1) receptor analog/agonist;
• Unstable cardiovascular disease;
• History of weight loss surgery or other gastrointestinal surgical procedures that could possibly interfere with the mechanism of action of GLP-1 receptor agonists;
• Based on contraindications/warnings identified with other GLP-1 receptor agonists, subjects will be excluded if they have: History, symptoms, or signs of pancreatitis or severe gastrointestinal disease (ie, gastroparesis) or Personal or family history of medullary thyroid tumors or history of Multiple Endocrine Neoplasia Syndrome Type 2;
• Clinically significant renal and/or hepatic dysfunction;
• Pregnant or lactating female subjects.