The purpose of this study is revealing that the ratio of creatinine clearance (Ccr) to inulin clearance (Cin) measuring at the same time is more than 1.2.

Inclusion Criteria:

• Kidney disease patients requiring exact evaluation of kidney function
• eGFR: >=30 and <=89 mL/min/1.73m^2

Exclusion Criteria:

• Edema on the day before start of study treatment
• Oliguria on the day before start of study treatment
• Dehydration on the day before start of study treatment
• Infection or inflammatory disease before administration
• History of epilepsy or organic brain disorder
• History of, clinically significant cardiac, hematologic, hepatic and pancreatic disease