Published time Research type Research object Follow-up time Treatment Outcome
2009 [4] Prospective cohort study 207 patients with IgAN 6 years High-dose losartan (200 mg/d), normal- dose (100 mg/d), normal–dose enalapril (20 mg/d) and low-dose (10 mg/d) Patients on high-dose ARB had significantly higher eGFR (p<0.0005) and lower proteinuria (p<0.005)
2011 [5] Retrospective cohort study 66 IgAN patients with an eGFR<60ml/min 2-17 years ACEI group (n=20), ARB group (n=23), Control group (n=23, treated with antiplatelet agents) Renal survival rate was significantly higher in the ACEI or ARB groups than in the control group
2012 [8] Retrospective cohort study 63 IgAN patients with an eGFR of <60 ml/min and proteinuria ≥ 0.5 g/d 2-24 years RASI alone group (n=33); Combination group (n=30 treated with steroids and RASIs) Renal function, the amount of proteinuria, and histological backgrounds were not significantly different
2012 [7] Meta-analysis 6 RCTs of combination therapy with ACEI plus ARB (109 patients) Not known Combined treatment with ACEI plus ARB VS treatment with ACEI/ARB alone Combined treatment was more effective than ACEI/ARB alone for reducing daily proteinuria
2013 [6] Prospective cohort study 60 patients with IgAN, proteinuria < 0.5 g/d, normal blood pressure and renal function 5 years Ramipril 2.5 mg daily or no treatment Ramipril group does not offer any benefit by evaluating proteinuria, eGFR and hypertension
Table 1: The studies of IgAN treatment with RASIs.