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Treatment of Early Immunoglobulin A Nephropathy by Angiotensin-converting Enzyme Inhibitor.
MedLine Citation:
PMID:  23331443     Owner:  NLM     Status:  In-Data-Review    
BACKGROUND: The treatment of immunoglobulin A (IgA) nephropathy with normal renal function and minimal proteinuria is unknown.
METHODS: We randomly assigned 60 patients with IgA nephropathy, proteinuria <0.5 g/day, normal blood pressure and renal function to ramipril 2.5 mg daily or no treatment. Patients were followed for 5 years for the development of hypertension, proteinuria, or impaired renal function.
RESULTS: The blood pressure of the treatment group was marginally lower than the control group throughout the study period. At 60 months, the event-free survival was marginally higher for the treatment group as compared with the control group (81.1% vs 70.5%, P=.27). The proteinuria-free survival was similar at 82.9% and 79.3% for the treatment and control groups, respectively (P=.6); hypertension-free survival was 86.4% and 79.3% (P=.2). After 60 months of follow-up, the estimated glomerular filtration rate (GFR) was 108.1±29.0 mL/min/1.73 m(2) for the treatment group and 105.7±17.7 mL/min/1.73 m(2) for the control group (P=.7), but the difference was not statistically significant. None of the patients developed impaired renal function. The rate of GFR decline was similar between the treatment and control groups (-0.39±2.57 vs -0.59±1.63 mL/min/1.73 m(2) per year, respectively, P=.7). In general, the study medication was well tolerated. Two patients needed to stop prematurely because of cough and dizziness.
CONCLUSION: For early IgA nephropathy patients with minimal proteinuria, normal blood pressure, and normal renal function, treatment with 2.5 mg/daily of ramipril for 5 years does not offer any benefit.
Philip Kam-Tao Li; Bonnie Ching-Ha Kwan; Kai-Ming Chow; Chi-Bon Leung; Cheuk-Chun Szeto
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The American journal of medicine     Volume:  126     ISSN:  1555-7162     ISO Abbreviation:  Am. J. Med.     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-01-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0267200     Medline TA:  Am J Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  162-8     Citation Subset:  AIM; IM    
Copyright Information:
Copyright © 2013 Elsevier Inc. All rights reserved.
Department of Medicine & Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong, China.
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