- Have a hemoglobin A1c value of ≥7.0% and ≤10.5%, if on diet and exercise or diet, exercise, and metformin (stable dose of at least 1000 mg/day for at least 60 days), or have a hemoglobin A1c value of ≥7.0% and ≤9.5%, and are on an appropriate diet and exercise regimen, a stable dose of metformin and willing to discontinue a second oral anti-hyperglycemic medication