Ferric citrate may cut dialysis patients' need to take multiple drugs that treat complications related to kidney disease, says study published in Journal of the American Society of Nephrology.

Dialysis patients usually have to take 3 different medications to overcome these 3 complications related to kidney disease: drugs that bind phosphorus, erythropoietin-stimulating agents (ESA) that boost blood cell production, and intravenous (IV) iron. Julia Lewis, MD (Vanderbilt University School of Medicine) and her colleagues in the Collaborative Study Group conducted a 441-patient randomized clinical trial to test the potential of a compound called ferric citrate to bind phosphorus, increase iron stores, and reduce the usage of IV iron and ESAs.
Patients were randomized to receive either ferric citrate or another phosphorus-binding agent for 52 weeks. This was then followed by a 4-week period in which patients taking ferric citrate were again randomized to either continue on the medication or switch to placebo.
The study investigators found that ferric citrate effectively reduced blood phosphorus levels while increasing iron stores and decreasing the need for IV iron and ESAs. "Ferric citrate binds the phosphorus in food and also increases iron in the blood, and it allows patients to need less or no IV iron and medicines to make their bone marrow produce more blood cells," said Dr. Lewis. She also noted that patients on dialysis often experience many serious adverse medical events, many of which require hospitalization, and that ferric citrate was linked with fewer of these events compared with currently available phosphorus-binding medications. "While benefiting patients, ferric citrate is estimated to also actually reduce the cost of caring for dialysis patients by reducing IV iron and ESA usage, as well as hospitalizations."
Source-Eurekalert