Overview Additive Renoprotective Effects of Oral Calcitriol in IgA Nephropathy Patients Taking Renin-Angiotensin System Blockers Status: Completed Trial end date: 2016-08-01 Target enrollment: Participant gender: Summary This study will help to show the efficacy of vitamin D and address the optimal strategy to minimize renal injury in IgAN patients. Phase: N/A Details Lead Sponsor: Yonsei UniversityTreatments: Calcitriol