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