NCT01493050

Brief Summary

The purpose of this study is to see if taking a medication can lower the amount of oxidants from food that go into our body. Previous research shows that if the investigators lower the oxidants from food in people with diabetes, this simple change lowers different risks for heart disease and the worsening of kidney disease. The investigators focus on a specific type of oxidant, advanced glycation endproducts (AGEs). A previous, smaller study, conducted by our group showed that a drug, already approved by the FDA, will lower AGEs in the investigators compared Renvela® to Tums®. Both of these drugs have few side effects and have been used for a long time in patients with diabetes and kidney disease. While our previous study was interesting, it was just too small to be able to be sure that it will help all people with diabetes, or if the good effects the investigators found were simply due to chance. The investigators are doing this new study to confirm or deny the possibility that Renvela® can really help people with diabetes and kidney disease.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
117

participants targeted

Target at P50-P75 for phase_2

Timeline
Completed

Started Feb 2012

Geographic Reach
1 country

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

December 13, 2011

Completed
2 days until next milestone

First Posted

Study publicly available on registry

December 15, 2011

Completed
2 months until next milestone

Study Start

First participant enrolled

February 1, 2012

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2013

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2013

Completed
Last Updated

April 9, 2014

Status Verified

April 1, 2014

Enrollment Period

1.8 years

First QC Date

December 13, 2011

Last Update Submit

April 8, 2014

Conditions

Keywords

Diabetic NephropathySevelamer Carbonate

Outcome Measures

Primary Outcomes (3)

  • glucose metabolism

    HbA1C and serum AGE levels

    baseline

  • glucose metabolism

    HbA1C and serum AGE levels

    at 3 months

  • glucose metabolism

    HbA1C and serum AGE levels

    at 6 months

Secondary Outcomes (8)

  • markers of inflammation and oxidative stress

    baseline

  • markers of inflammation and oxidative stress

    at 3 months

  • markers of inflammation and oxidative stress

    at 6 months

  • serum lipid levels

    baseline

  • serum lipid levels

    at 3 months

  • +3 more secondary outcomes

Study Arms (2)

Sevelamer Carbonate

EXPERIMENTAL

1600 mg (two 800 mg in the form of tablets or powder to be diluted in water) TID with meals for 26 weeks

Drug: Sevelamer Carbonate

calcium carbonate

ACTIVE COMPARATOR

1200 mg of calcium carbonate TID with meals for 26 weeks

Drug: calcium carbonate

Interventions

1600 mg (two 800 mg in the form of tablets or powder to be diluted in water) TID with meals for 26 weeks

Sevelamer Carbonate

1200 mg of calcium carbonate TID with meals for 26 weeks

Also known as: (Tums®)
calcium carbonate

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age \> 18 years
  • Evidence of CKD Stages II, III or IV
  • Stage II CKD; eGFR 60-89 ml/min
  • Stage III CKD: eGFR 30-59 ml/min
  • Stage IV CKD: eGFR 15-29 ml/min
  • Proteinuria (\>200 mg/day or 300 mg/gm creatinine on a spot urine) on urinalysis on two occasions within 18 months of recruitment
  • Diagnosis of diabetes and receiving at least one medication for diabetes mellitus
  • HbA1c\>6.5%

You may not qualify if:

  • Age \<18
  • Patients receiving active treatment for hyperphosphatemia
  • Biopsy proven renal disease other than diabetic nephropathy
  • Hypophosphatemia
  • Hypercalcemia
  • Any history of significant gastrointestinal disorders
  • Any history of significant gastrointestinal surgery such as ileostomy, colostomy and colectomy.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Beth Israel Medical Center

New York, New York, 10003, United States

Location

Icahn School of Medicine at Mount Sinai

New York, New York, 10029, United States

Location

Related Publications (2)

  • Natale P, Green SC, Ruospo M, Craig JC, Vecchio M, Elder GJ, Strippoli GF. Phosphate binders for preventing and treating chronic kidney disease-mineral and bone disorder (CKD-MBD). Cochrane Database Syst Rev. 2025 Jun 27;6(6):CD006023. doi: 10.1002/14651858.CD006023.pub4.

  • Vlassara H, Uribarri J, Cai W, Goodman S, Pyzik R, Post J, Grosjean F, Woodward M, Striker GE. Effects of sevelamer on HbA1c, inflammation, and advanced glycation end products in diabetic kidney disease. Clin J Am Soc Nephrol. 2012 Jun;7(6):934-42. doi: 10.2215/CJN.12891211. Epub 2012 Mar 29.

MeSH Terms

Conditions

Diabetic Nephropathies

Interventions

SevelamerCalcium Carbonate

Condition Hierarchy (Ancestors)

Kidney DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital DiseasesDiabetes ComplicationsDiabetes MellitusEndocrine System Diseases

Intervention Hierarchy (Ancestors)

PolyaminesAminesOrganic ChemicalsCalcium CompoundsInorganic ChemicalsCarbonatesCarbonic AcidCarbon Compounds, InorganicMinerals

Study Officials

  • Gary Striker, MD

    Icahn School of Medicine at Mount Sinai

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

December 13, 2011

First Posted

December 15, 2011

Study Start

February 1, 2012

Primary Completion

December 1, 2013

Study Completion

December 1, 2013

Last Updated

April 9, 2014

Record last verified: 2014-04

Locations