Zouping County Hospital of Traditional Chinese Medicine

This study include 384 Participants with diabetic non-proliferative retinopathy
Design Method: Randomized, double blind, placebo controlled and multicenter clinical study. Participants treatment for 48 weeks, and main aimed to evaluate the therapeutic effect of tang wang prescription improve degree of retinal microvascular disease of patients with diabetic non-proliferative retinopathy.

This study is a randomized, double-blinded, placebo-controlled clinical trial on type 2 diabetic Kidney Disease in early stage ( microalbuminuria excretion rate = 20-200mg/min) to evaluate the therapeutic effect of tang shen prescription. 632 participants will be recruited for the study, all of whom had type 2 diabetes, serum creatinine concentrations is normal, and no evidence of non-diabetic renal diseases. The subjects will be randomized to treatment with either tang shen prescription or placebo.