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TerminatedNCT01277497Updated Jan 14, 2016

Effect of Phosphate Binders on Markers of Vascular Health in Chronic Kidney Disease Stages 3 and 4

A Phase 4 interventional study of Sevelamer carbonate and Calcium acetate in Chronic Kidney Disease, sponsored by Albany College of Pharmacy and Health Sciences. Terminated at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2016-01-14.

Sponsored by Albany College of Pharmacy and Health Sciences · Phase 4, Interventional, and Prevention

Why this study was terminated
low enrollment
Phase
Phase 4
Study type
Interventional
Enrollment
30
Allocation
Randomized
Ages
18 Years and older
Sex
All
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Study summary

Chronic kidney disease (CKD) patients often have high levels of a substance called fibroblast growth factor-23 (FGF-23), a phosphorus excreting hormone, which has been related to heart disease. As kidney function declines, less phosphorus is removed by the kidneys and as a result phosphorus accumulates in the blood. In response to elevated phosphorus levels, more FGF-23 is released to help facilitate the excretion of extra phosphorus into the urine. In addition to effects on FGF-23, increased phosphorus levels can lead to calcification (hardening) of the blood vessels in the CKD population.

Phosphate binding medicines are used in CKD patients to lower the amount of phosphorus absorbed by the stomach and intestines after eating meals and snacks. In patients with CKD, studies have shown that phosphate binders can lower FGF-23 levels in the blood. Lowering FGF-23 levels in CKD patients may also lower substances in the blood that cause calcification of blood vessels in the CKD population.

This study is being done to determine if using phosphate binders, either sevelamer carbonate or calcium acetate, in the earlier stages kidney disease (before dialysis) can decrease FGF-23 and biomarkers (substances in the blood) associated with hardening of the blood vessels and heart disease.

02

Conditions studied

  • Chronic Kidney Disease

Keywords

  • Chronic kidney disease
  • Phosphate binder
  • Sevelamer carbonate
  • Calcium acetate
  • Vascular calcification
  • Endothelial Dysfunction
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In context

Kidney Diseases

3,840 studies on the registry are indexed under Kidney Diseases; 500 are open to participants now.

This study's enrollment of 30 is below the median of 70 across 2,640 interventional studies indexed under Kidney Diseases.

Browse Kidney Diseases studies →

Lead sponsor

Albany College of Pharmacy and Health Sciences is the lead sponsor of 4 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Males or females ≥ 18 years of age at start of screening
  • CKD stage 3 or 4 defined by an eGFR 15 - 60 mL/min/1.73m2
  • Not expected to start dialysis for 8 months
  • Serum intact PTH \< 500 pg/mL during screening period
  • On a stable ACE inhibitor/ARB regimen for 30 days prior to screening

Exclusion criteria

Exclusion Criteria:

  • History of any of the following diseases: congestive heart failure, MI within the last 6 months, cerebrovascular accident, significant valvular disease, malignancy
  • Currently receiving erythropoiesis stimulating agent or IV iron therapy
  • History of inflammatory/autoimmune disease
  • History of polycystic kidney disease
  • HIV positive or AIDS
  • Pregnant or breastfeeding
  • Receiving activated Vitamin D analogs, nutritional vitamin D agents > 2,000 IU/day, or calcimimetics with in the last 3 months
  • Significant GI disorder
  • Proteinuria >3.5 g/24 hours
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Study design

Phase
Phase 4
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
30 participants (actual)

Study arms

  • Experimental
    Sevelamer carbonate

    1,600 mg (2 x 800 mg) three times daily with meals for a total of 12 weeks

    Drug: Sevelamer carbonate

  • Active comparator
    Calcium acetate

    1,334 mg (2 x 667 mg) three times daily with meals for a total of 12 weeks

    Drug: Calcium acetate

Interventions

  • DrugSevelamer carbonate

    Sevelamer carbonate 1,600 mg three times daily with meals

    Also known as: Renvela

  • DrugCalcium acetate

    Calcium acetate 1,334 mg three times daily with meals for 12 weeks

    Also known as: Phoslo

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What researchers measure

Primary outcomes

  1. The primary outcome measure will be the change in FGF-23 concentrations

    Time frame: 12 weeks

Secondary outcomes

  1. Change in vascular calcification biomarker levels

    Time frame: 12 weeks

  2. Change in endothelial dysfunction biomarker levels.

    Time frame: 12 Weeks

  3. Change in inflammatory biomarker levels

    Time frame: 12 Weeks

07

Study locations

1 site
  • Albany Medical Center South Clinical Campus
    Albany, New York 12208, United States
08

References and documents

Publications

  • Mason DL, Godugu K, Nnani D, Mousa SA. Effects of sevelamer carbonate versus calcium acetate on vascular calcification, inflammation, and endothelial dysfunction in chronic kidney disease. Clin Transl Sci. 2022 Feb;15(2):353-360. doi: 10.1111/cts.13151. Epub 2021 Oct 2. PubMed 34599865 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 14, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01277497
Lead sponsor
Albany College of Pharmacy and Health Sciences
Collaborators
Albany Medical College, Genzyme, a Sanofi Company
Responsible party
Darius Mason (PI, Albany College of Pharmacy and Health Sciences) — Principal investigator
First posted
Jan 17, 2011
Start date
Jan 2011
Primary completion
Jan 2016
Completion
Mar 2016 (estimated)
Last update
Jan 14, 2016

Study contacts

Darius L Mason, Pharm.D.
principal investigator · Albany College of Pharmacy and Health Sciences

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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