Japanese T@DM patients aged @-@ years with hemoglobin A@c ( HbA@c ) of @-@ @ % , fasting plasma glucose ( FPG ) @mg/dL and on diet therapy were randomized in a double-blind manner to receive luseogliflozin ( @ , @ , or @mg ) or placebo once daily for @ weeks ( n = @ , @ , @ , and @ , respectively ) .