<qa>  How many patients will be randomly allocated to receive the active drug or the placebo?This trial will involve diabetic patients with foot ulcers who meet the inclusionexclusion criteria. At least 200 patients aged 45-80yrs will be enrolled in the study and randomly allocated to receive the active drug or the placebo in indistinguishable formulations. After 2 months closure rate of the ulcer will be evaluated. 