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Dose Ranging Study of Magnesium Iron Hydroxycarbonate in Haemodialysis Subjects With Hyperphosphataemia

An Open Label, Dose-Ranging Study to Establish the Tolerability of Magnesium Iron Hydroxycarbonate in Haemodialysis Subjects With Hyperphosphataemia.

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00436683
Acronym
ACT3
Enrollment
64
Registered
2007-02-19
Start date
2007-02-28
Completion date
2008-04-30
Last updated
2009-08-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Kidney Failure

Keywords

Hyperphosphataemia, Phosphate binder

Brief summary

Magnesium iron hydroxycarbonate is a phosphate binder that absorbs phosphate from food, reducing the amount that the body can absorb. The purpose of this study is to determine how well a range of different doses of fermagate are tolerated by the subjects in the trial.

Detailed description

High levels of phosphate in the blood are linked with serious effects, due to calcium imbalances (high levels of parathyroid hormone (PTH), bone disease, formation of calcium deposits in the body, and blood-vessel disease. Current guidelines indicate that blood phosphorus levels should be maintained between 1.13 to 1.78 mmol/L in patients who receive hemodialysis. The purpose of this study is to determine the range of dosages which are tolerated by patients with hyperphosphatemia, undergoing haemodialysis.

Interventions

Film coated tablet 500mg

tablet 800mg

Sponsors

Ineos Healthcare Limited
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Male or female subjects on active haemodialysis, aged 18 years or over who are able to comply with study procedures * Written informed consent given * On a stable haemodialysis regimen (three times per week) for at least 3 months and be unlikely to change their dialysis prescription during the study period * On a stable dose of phosphate binder for at least 1 month prior to screening * Willing to abstain from taking any phosphate binder or oral magnesium-, aluminium- or iron-containing products and preparations, other than the study medication * Willing to avoid any intentional changes in diet such as fasting, dieting or overeating * On a dialysate magnesium ion concentration of ≤1.0 mmol/L for at least 1 month prior to screening

Exclusion criteria

* Received a cardiac transplant * Heart failure according to New York Heart Association (NYHA) Functional IV Classification * Participation in any other clinical trial using an investigational product or device within the previous 4 weeks * A significant history of alcohol, drug or solvent abuse in the opinion of the investigator * Any disease or condition, physical or psychological, which in the opinion of the investigator would compromise the safety of the subject or increase the likelihood of the subject being withdrawn * Clinically significant laboratory findings (at screening for this subject population) in the opinion of the investigator * Any history of recent clinically significant malignancy * A significant illness (excluding renal disease) in the 4 weeks before screening * A history of poorly controlled epilepsy * Female subjects who are lactating or pregnant. Women of childbearing potential (pre-menopausal and not surgically sterilised) unless they are using a reliable contraceptive method, that is, barrier methods, hormones or intrauterine device * Allergy to magnesium iron hydroxycarbonate or sevelamer or any component of the formulations * Any condition that affects the reliability of measuring QT interval, for example, an irregular heart rhythm such as atrial fibrillation or frequent ectopic activity

Design outcomes

Primary

MeasureTime frame
Assessment of intolerance10 weeks

Secondary

MeasureTime frame
Assessment of QTc interval10 weeks
Change from baseline in serum electrolytes10 weeks
Change from baseline in parathyroid hormone (PTH)10 weeks
Reduction of serum magnesium removal during dialysis10 weeks

Countries

United Kingdom

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026