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Chronic Kidney DiseasePhase 4NCT01277497

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

A Phase 4 study testing Sevelamer carbonate and Calcium acetate in people with Chronic Kidney Disease, run by Albany College of Pharmacy and Health Sciences at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial 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. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Chronic Kidney Disease
What is being tested?
Sevelamer carbonate and Calcium acetate
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
1 siteUnited States
Study dates
Jan 2011to Mar 2016
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 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

Who cannot join

  • 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
Show all 9Show fewer
  • 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

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Albany Medical Center South Clinical Campus

    Albany, New York, 12208

Other trials in United States

About this study

Official title: A Randomized Study on the Effects of Sevelamer Carbonate Versus Calcium Acetate on Biomarkers of Vascular Calcification, Inflammation, and Endothelial Dysfunction in Chronic Kidney Disease Stages 3 and 4

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.

Being tested
Sevelamer carbonate, Calcium acetate
Keywords
Chronic kidney disease, Phosphate binder, Sevelamer carbonate, Calcium acetate, Vascular calcification, Endothelial Dysfunction
Medical subject headings
Renal Insufficiency, Chronic, Vascular Calcification

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Sevelamer carbonateDrug

    Also called Renvela

    Sevelamer carbonate 1,600 mg three times daily with meals

  • Calcium acetateDrug

    Also called Phoslo

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

Study groups in NCT01277497
Study groupRoleWhat they receive
Sevelamer carbonateExperimental1,600 mg (2 x 800 mg) three times daily with meals for a total of 12 weeks
Receives: Drug: Sevelamer carbonate
Calcium acetateActive comparator1,334 mg (2 x 667 mg) three times daily with meals for a total of 12 weeks
Receives: Drug: Calcium acetate

What is being measured

The primary outcome is the main question the study is designed to answer.

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

    Measured: 12 weeks

Secondary outcomes (3)
  1. Change in vascular calcification biomarker levels

    Measured: 12 weeks

  2. Change in endothelial dysfunction biomarker levels.

    Measured: 12 Weeks

  3. Change in inflammatory biomarker levels

    Measured: 12 Weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 Jan 2011 (estimated)
  2. Study startJan 2011
  3. Primary completionJan 2016
  4. Study completionMar 2016 (estimated)

Why it stopped: low enrollment

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01277497
Sponsor's protocol ID
2902
Status last verified
Jan 2016
First submitted
6 Jan 2011
Last updated
14 Jan 2016
Results posted
No
Data monitoring committee
No

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

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Sevelamer carbonate and Calcium acetate in people with Chronic Kidney Disease, run by Albany College of Pharmacy and Health Sciences at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 14 Jan 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: low enrollment). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The primary outcome measure will be the change in FGF-23 concentrations (time frame: 12 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01277497, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Jan 2016.

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