Abstract: The present invention relates to a therapeutic agent for diabetes with sulfonylurea secondary failure, which contains a GPR40 agonist. According to the present invention, a therapeutic agent for diabetes with sulfonylurea secondary failure that affords a superior insulin secretion effect and a superior hypoglycemic effect even in diabetic patients for whom a sulfonylurea compound or a fast-acting insulin secretagogue fails to provide an insulin secretion effect and therefore, fails to provide a sufficient hypoglycemic effect can be provided.

Abstract: The present invention relates to a therapeutic agent for diabetes with sulfonylurea secondary failure, which contains a GPR40 agonist. According to the present invention, a therapeutic agent for diabetes with sulfonylurea secondary failure that affords a superior insulin secretion effect and a superior hypoglycemic effect even in diabetic patients for whom a sulfonylurea compound or a fast-acting insulin secretagogue fails to provide an insulin secretion effect and therefore, fails to provide a sufficient hypoglycemic effect can be provided.

Abstract: An agent for treating diabetes with sulfonylurea secondary failure which comprises a dipeptidyl peptidase IV inhibitor. The agent of the present invention is an agent for treating diabetes with sulfonylurea secondary failure showing excellent insulin-secreting and hypoglycemic effects on even diabetic patients on whom a sulfonylurea compound or a fast-acting insulin secretagogue has no insulin-secreting effect and therefore no sufficient hypoglycemic effect.

Abstract: A compound represented by the formula (I) wherein one of R1 and R2 is a hydrogen atom or a substituent and the other is an optionally substituted cyclic group; W is a bond or a divalent aliphatic hydrocarbon group; Y is a group of the formula: —OR3 (wherein R is a hydrogen atom, an optionally substituted hydrocarbon group, an optionally substituted heterocyclic group or an optionally substituted acyl group) or an optionally esterified or amidated carboxyl group, or a salt thereof or a prodrug thereof has a superior insulin secretion promoting action and a hypoglycemic action and shows low toxicity. Therefore, the compound is useful as a pharmaceutical agent, particularly as an agent for the prophylaxis or treatment of diabetes and diabetic complications, and the like.

Abstract: A compound represented by the formula (I) wherein one of R1 and R2 is a hydrogen atom or a substituent and the other is an optionally substituted cyclic group; W is a bond or a divalent aliphatic hydrocarbon group; Y is a group of the formula: —OR3 (wherein R3 is a hydrogen atom, an optionally substituted hydrocarbon group, an optionally substituted heterocyclic group or an optionally substituted acyl group) or an optionally esterified or amidated carboxyl group, or a salt thereof or a prodrug thereof has a superior insulin secretion promoting action and a hypoglycemic action and shows low toxicity. Therefore, the compound is useful as a pharmaceutical agent, particularly as an agent for the prophylaxis or treatment of diabetes and diabetic complications, and the like.

Abstract: A compound represented by the formula (I) 1