To Determine the Efficacy and Safety of DW1029M on Microalbuminuria in Patients With Diabetic Nephropathy

Inclusion Criteria: * Has confirmed diabetic mellitus prior to 6years * Has confirmed microalbuminuria 30 \~ 299㎍/㎎creatinine prior to 5months one time and microalbuminuria 30 \~ 299㎍/㎎creatinine during screening period * Blood Pressure(BP) ≤ 150 / 90 mmHg * estimated glomerular filtration rate(eGFR) ≥ 30 ml/min/1.73m2 * Hemoglobin A1c(HbA1c) ≤ 9% * Low density lipoprotein(LDL-C) ≤ 130mg/dl Exclusion Criteria: * kidney or liver disease as follows i.Serum Creatinine \> 2.0mg/dl ii.Alanine Aminotransferase(ALT) or Aspartate Aminotransferase(AST) \> 2 x Upper Limit Normal(ULN) iii.Total Bilirubin \> 2 x ULN * Organic gastrointestinal disorder or Chronic gastroenterologic disorders prior to 6 months as follows \[NOTE\] Active Crohn's disease, Active ulcerative colitis, Chronic peptic ulcer disease, etc. * cardiovascular disease prior to 3 months as follows \[NOTE\] Unstable angina pectoris, Myocardial infarction, Coronary artery bypass surgery, Percutaneous Transluminal Coronary Angioplasty, transient ischemic attack, cerebrovascular accident etc.