A Phase 1 Study to Evaluate the Effect of Renal Impairment on the Pharmacokinetics, Pharmacodynamics and Safety of ASP8232 (Part 1) and a Multiple Dose, Placebo-controlled Exploratory Safety, Pharmacokinetic and Pharmacodynamic Study in Type 2 Diabetes Mellitus Subjects With Chronic Kidney Disease (Part 2)

This is a two-part study. Part 1 compares the pharmacokinetics (PK), pharmacodynamics (PD) and safety and tolerability of ASP8232 in healthy subjects with subjects with different degrees of renal impairment; Part 2 is a multiple-dose, placebo-controlled study to evaluate the PK, PD and safety and tolerability of multiple doses of ASP8232 in T2DM subjects with CKD.

Part 1:

Subjects reside in the clinic for 9 days, receiving a single oral dose of ASP8232 on Day 1 under fasted conditions followed by a 168-hours blood and urine PK/PD sampling period. Subjects are discharged on Day 8 and return to the clinic on Days 10, 12, 14, 21, 28, and 42 for the collection of blood PK/PD samples. An End of Study Visit (ESV) takes place after the last PK sample is collected on Day 56.

Part 2:

Subjects are admitted to the clinic on Day -2 in order to collect PD urine samples before dosing begins on Day 1. Subjects receive multiple oral doses of ASP8232 or placebo for 28 days. They are discharged on Day 8 and return to the clinic on Days 14 and 21, and Days 27 to 29 for blood PK/PD and urine PD samples. An ESV takes place 14 to 28 days after the last PK/PD sample is collected.