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NCT05085275CompletedPhase 3

Ferric Citrate for the Prevention of Renal Failure in Adults With Advanced Chronic Kidney Disease

Multicenter, Randomized, Double-blind, Placebo-controlled Trial to Determine the Effect of Ferric Citrate on Time to a Composite Endpoint of Initiation of Maintenance Dialysis or All-cause Mortality vs Placebo in Adults With Advanced CKD

Source: ClinicalTrials.gov · Last updated 29 Aug 2025

Brief summary (registry, in English)

A 9-month randomized, double-blind, placebo-controlled study to compare the effect of fixed dose ferric citrate versus placebo in patients with advanced chronic kidney disease (eGFR ≤20 ml/min/1.73m2) on the composite endpoint of time to initiation of maintenance dialysis or all-cause mortality.

Status (registry)
Completed
Phase (registry)
Phase 3
Study type
Interventional
Enrollment
289 (actual)
First submitted
6 Oct 2021
Start date
30 Mar 2022
Primary completion date
24 Jan 2024
Lead sponsor
USRC Kidney Research
NCT number
NCT05085275

What you commit to

  • Study type: Interventional · Phase 3
  • Participants enrolled: 289
  • From 30 Mar 2022 to the primary completion date, 24 Jan 2024
  • 20 sites in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Hypersensitivity reaction to previous oral iron therapy.
  • Active drug or alcohol dependence or abuse (excluding tobacco use or use of medical or recreational marijuana) within the 12 months prior to Screening or evidence of such abuse, in the opinion of the Investigator.
  • Use of an investigational medication or participation in an investigational study within 30 days prior to Day 1.
  • Patients with a scheduled date for receipt of living donor kidney transplant

Other illness

  • A known allergy or intolerance to ferric citrate or any of its constituents.
  • History of hemochromatosis or iron overload syndrome (e.g., hereditary sideroblastic anemia, thalassemia, polycythemia vera).
  • Active malignancy requiring current treatment except for non-melanoma skin cancer regardless of treatment.
  • Evidence of a clinically active infection requiring antibiotics at Randomization.

Other

  • Patients who, in the opinion of the Investigator, have acute kidney injury rather than CKD.
  • Patients with planned/imminent maintenance dialysis, or that are anticipated to begin maintenance dialysis within 8 weeks from Screening, in the opinion of the Investigator.
  • Limited life expectancy (less than 6 months) in the opinion of the Investigator.
  • Females who are known to be pregnant or are breast-feeding during Screening or are planning to become pregnant and breastfeeding during the study period.
  • Unable to comply with study requirements or in the opinion of the Investigator, not clinically stable to participate in the study.

Who the study is looking for

  • Adult patients greater or equal to 18 years old.
  • Diagnosis of NDD advanced CKD, regardless of etiology. Advanced CKD is defined as at least one local laboratory determined estimated glomerular filtration rate (eGFR) ≤20 ml/min/1.73m2 (calculated per any commonly used method or equation for estimating eGFR) within 90 days of Day 1.
  • Most recent transferrin saturation (TSAT) less than or equal to 45% within 45 days of Day 1.
  • Most recent serum phosphate is greater or equal to 3.0 mg per dL within 45 days of Day 1.
  • Most recent ferritin is less than or equal to 500 ng per mL within 45 days of Day 1.
  • Women of child-bearing potential must have a negative serum or urine pregnancy test within 28 days prior to Day 1.
  • Understands the procedures and requirements of the study and provides written informed consent and authorization for protected health information disclosure.

Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (20)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Dialysis Clinic, Inc.
Coordinator of this site? Confirm its status
AlbanyUnited StatesUnknown status
Nephrology Associates of Western NY
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AmherstUnited StatesUnknown status
Balboa Research SMO
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Chula VistaUnited StatesUnknown status
Nephrology and Hypertension Specialists, PC
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DaltonUnited StatesUnknown status
Balboa Research SMO
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El CentroUnited StatesUnknown status
Balboa Research SMO
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EscondidoUnited StatesUnknown status
Associates in Nephrology
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Fort MyersUnited StatesUnknown status
High Desert Nephrology Associates
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GallupUnited StatesUnknown status
Kidney Associates of Kansas City
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Kansas CityUnited StatesUnknown status
Dialysis Clinic, Inc.
Coordinator of this site? Confirm its status
KnoxvilleUnited StatesUnknown status
Balboa Research SMO
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La MesaUnited StatesUnknown status
South Texas Renal Care Group
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Live OakUnited StatesUnknown status
Rocky Mountain Kidney Care
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Lone TreeUnited StatesUnknown status
Arkansas Nephrology & Hypertension Clinic
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Pine BluffUnited StatesUnknown status
Clinical Advancement Center, PLLC
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San AntonioUnited StatesUnknown status
South Texas Renal Care Group
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San AntonioUnited StatesUnknown status
Balboa Research SMO - Kearney Mesa
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San DiegoUnited StatesUnknown status
Major Health Partners
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ShelbyvilleUnited StatesUnknown status
Nephrology-Hypertension Associates of Central NJ
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South RiverUnited StatesUnknown status
Spartanburg Nephrology Associates
Coordinator of this site? Confirm its status
SpartanburgUnited StatesUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.