In this multicenter open-label 24-week trial , Japanese over-weight ( BMI 25 kg/m ( 2 ) ) patients with T2D not taking medication or taking metformin and/or sulfonylurea were randomly assigned to receive either 50mg of miglitol three times a day ( M , n = 14 ) , 50mg of sitagliptin once a day ( S , n = 14 ) , or a combination of both ( M+S , n = 13 ) .