Both insulin hyposecretion and insulin-resistance are considered to be involved in the development of type 2 diabetes mellitus.~Takeda is developing SYR-322 (alogliptin) for the improvement of glycemic control in patients with type 2 diabetes mellitus. Alogliptin is an inhibitor of the dipeptidyl peptidase IV (DPP-IV) enzyme. DPP-IV is thought to be primarily responsible for the degradation of 2 peptide hormones released in response to nutrient ingestion. It is expected that inhibition of DPP-IV will improve glycemic control in patients with type 2 diabetes.~This was a phase 2/3, multicenter, open-label study, in participants who had completed the core phase 2/3 sulfonylurea add-on study (SYR-322/CCT-005; NCT01318083) or the core phase 2/3 metformin add-on study (SYR-322/CCT-006; NCT01318109) to evaluate the safety and efficacy of alogliptin administered as an add-on to a sulfonylurea (glimepiride) or metformin continuously for 40 weeks (52 weeks from the start of study treatment with alogliptin in the core phase 2/3 sulfonylurea add-on study or the core phase 2/3 metformin add-on study).
To evaluate the efficacy and safety of alogliptin administered as an add-on to sulfonylurea (glimepiride) or metformin, once daily (QD), twice daily (BID) or three times daily (TID).