• Harmeet Singh, John Reed, Sylvia Noble, Jose L Cangiano, David B Van Wyck, and United States Iron Sucrose (Venofer) Clinical Trials Group.
• Western Nephrology & Metabolic Bone Disease, PC, Lakewood, Colorado, USA.
• Clin J Am Soc Nephrol. 2006 May 1;1(3):475-82.

AbstractAlthough iron therapy is essential to optimize use of erythropoiesis-stimulating agents (ESA), randomized, controlled trials have heretofore been unavailable to evaluate reliably the efficacy of intravenous iron as an adjuvant to ESA treatment in peritoneal dialysis (PD) patients. In a multicenter trial, patients who had anemia, PD-dependent chronic kidney disease, stable ESA therapy, and a broad range of iron status (ferritin < or = 500 ng/ml, transferrin saturation < or = 25%) were randomly assigned to receive either 1 g of iron sucrose intravenously in three divided doses (300 mg over 1.5 h on days 1 and 15, 400 mg over 2.5 h on day 29) or no supplemental iron. No serious adverse drug events occurred after intravenous iron administration. The primary end point, peak hemoglobin increase, was higher (1.3 +/- 1.1 versus 0.7 +/- 1.1, mean +/- SD; P = 0.0028), and anemia intervention (transfusion, increase in ESA dose, or intravenous iron therapy not called for in protocol) occurred later (P = 0.0137) and less often in intravenous iron-treated patients compared with untreated control subjects (one of 66 [1.3%] versus five of 30 [16.7%]). Among patients who did not require intervention, iron-treated patients showed a calculated net ESA dose decrease compared with untreated control subjects. Baseline iron status did not predict responsiveness to intravenous iron therapy. Intravenous iron sucrose is an effective adjunct to ESA therapy in anemic patients with PD-dependent chronic kidney disease and is administered safely as 300 mg over 1.5 h or 400 mg over 2.5 h. Evidence of iron deficiency at baseline is not required to demonstrate intravenous iron efficacy.

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