Long-term Safety Study of Alogliptin Used in Combination With Thiazolidine in Participants With Type 2 Diabetes in Japan

A Long-Term, Open-Label Extension Study to Investigate the Long-Term Safety of SYR-322 When Used in Combination With Thiazolidine in Subjects With Type 2 Diabetes in Japan

The purpose of this study was to evaluate the long-term safety and efficacy of alogliptin and Thiazolidine administered once daily (QD) for 40 consecutive weeks in participants who completed a phase 2/3 Thiazolidine add on study.

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.

To evaluate the long-term safety and efficacy of alogliptin, participants in the present study were enrolled from a core phase 2/3 thiazolidine add on study (SYR-322/CCT-004; NCT01318070).

Inclusion Criteria:

1. Had completed the core phase 2/3 thiazolidine add on study.
2. The subject was capable of understanding and complying with protocol requirements.
3. Signed a written, informed consent form prior to the initiation of any study procedure.

Exclusion Criteria:

1. With clinical manifestation of hepatic impairment (e.g., an AST or ALT value of 2.5 times or more of the upper reference limit at Week 8 of the core phase 2/3 thiazolidine add on study).
2. With clinical manifestation of renal impairment (e.g., a creatinine value of 2 mg/dL or more at Week 8 of the core phase 2/3 thiazolidine add on study).
3. With a history or symptoms of cardiac failure.