IRCT20200117046158N1 IRCT 2020-03-14 Shahre-kord University of Medical Sciences Effect of allopurinol on diabetic nephropathy Evaluation of the effect of allopurinol on nephropathy in diabetic patients 2020-02-14 anticipated 60 Complete https://irct.ir/trial/45533 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: 60 diabetic nephropathy patients who were eligible for inclusion in the study will be enrolled by the simple randomized method. Then they will be divided into two groups of 30 using the random block method with 3 blocks. Thus, the first three cases in the first group, the second three cases in the second group, the third three cases in the first group, the forth three cases in the second group and this will be continued in the same way till the ending of samples, Blinding description: The drugs were placed in envelopes in packages A and B without labeling and without the knowledge of the investigator. 3 Diabetic nephropathy. Intervention 1: Intervention group: Patients in the case group are treated with allopurinol 100 mg daily. Intervention 2: Control group: Patients in the control group receive one placebo daily. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is I will decide until finishing the study