6. Moderate or severe impairment of renal function [defined as Estimated Glomerular Filtration Rate (eGFR) <60milliLitre/min/1.73 m2 (estimated by Modification in Diet and Renal Disease (MDRD)) or serum creatinine ≥1.5mg/dL in males or ≥1.4mg/dL in females]. Conditions of congenital renal glucosuria, history of unstable or rapidly progressing renal disease.