Nesiritide Does Not Improve Renal Function in Patients with Chronic Heart Failure and Worsening Serum Creatinine
AuthorWang, David J.
Dowling, Thomas C.
Marshall, Joanne, R.N.
Fisher, Michael L.
Gottlieb, Stephen S.
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AbstractBackground—Nesiritide (synthetic human brain natriuretic peptide) is approved for the treatment of symptomatic heart failure. However, studies of brain natriuretic peptide in patients with heart failure have come to conflicting conclusions about effects on glomerular filtration rate (GFR), effective renal plasma flow, natriuresis, and diuresis. Methods and Results—To identify a population at high risk of renal dysfunction with conventional treatment, we selected patients with a creatinine level increased from baseline (within 6 months). We examined the effects of nesiritide on GFR (measured by iothalamate clearance), renal plasma flow (measured by para-amino hippurate clearance), urinary sodium excretion, and urine output in a double-blind, placebo-controlled, crossover study. Patients received nesiritide (2 g/kg IV bolus followed by an infusion of 0.01 g/kg per minute) or placebo for 24 hours on consecutive days. Nesiritide and placebo data were compared by repeated-measures analysis and Student t test. We studied 15 patients with a recent mean baseline creatinine of 1.5 0.4 mg/dL and serum creatinine of 1.8 0.8 mg/dL on admission to the study. There were no differences in GFR, effective renal plasma flow, urine output, or sodium excretion for any time interval or for the entire 24-hour period between the nesiritide and placebo study days. For 24 hours, urine output was 113 51 mL/h with placebo and 110 56 mL/h with nesiritide. GFR during placebo was 40.9 25.9 mL/min and with nesiritide was 40.9 25.8. Conclusions—Nesiritide did not improve renal function in patients with decompensated heart failure, mild chronic renal insufficiency, and renal function that had worsened compared with baseline. The lack of effect may be related to renal insufficiency, hemodynamic alterations, sodium balance, severity of heart failure, or drug dose. Understanding the importance of these issues will permit effective and appropriate use of nesiritide.
CitationWang, D. J., Dowling, T. C., Meadows, D., Ayala, T., Marshall, J., Minshall, S., Greenberg, N., Thattassery, E., Fisher, M. L., Rao, K., & Gottlieb, S. S. (2004). Nesiritide does not improve renal function in patients with chronic heart failure and worsening serum creatinine. Circulation, 110(12), 1620-1625.
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