Kidney DiseasePhase 3DFGBayNCT02300376
Designing a Bayesian Model of the Plasma Clearance of Calcium Edetate de Sodium for the Calculation of GFR and Validity Compared to the Renal Clearance of Inulin
A Phase 3 study testing Dosage of Calcium edetate de sodium in people with Kidney Disease, run by University Hospital, Limoges at 1 site in France.
Trial summary
Diagnosis of patients with renal insufficiency and recommendations for medical treatment of patients who suffer from chronic renal failure are based on the different stages of Glomerular Filtration Rate (GFR). Many formulas exist to assess GFR. Read more about this study
- Who is it for?
- Ages 18 to 80 years
- Conditions the study is for
- Kidney Disease
- What is being tested?
- Dosage of Calcium edetate de sodium
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 30 participants
- Where
- 1 siteFrance
- Study dates
- Dec 2014to Dec 2017
- Phase
- Phase 3
- 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 to 80 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- For transplanted patients : patients from 18 to 80 years, after estimation of their renal function by MDRDs formulas (MDRD = Modification of Diet in Renal Disease) , regardless their nephropathy, regardless the age of the transplantation, with a normal state body hydratation, with a social insurance and who have given their prior consent.
- For other patients : patients from 18 to 80 years, after estimation of their renal function by MDRDs formulas, who need a reliable assess of their renal function, with a normal state body hydratation, with a social insurance and who have given their prior consent.
- Inclusion criteria for V2: Transplanted patients who have participated to V1, with stable clinical conditions, with a stable GFR (less than 30% variation of creatinine clearance by MDRDs formulas) and who have given their prior consent.
Who cannot join
- Hypersensitivity to Calcium edetate de sodium
- Inulin or excipients
- Lead or other heavy metal intoxication
- Volume expansion or dehydration
- Acute renal disease
- Bladder voiding affections
Show all 12Show fewer
- Coagulation disorders
- Poor venous capital
- People in guardianship
- Patients already involved in an other research
- Women in child bearing age without any method of contraception
- Pregnant or lactating women.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Designing a Bayesian Model of the Plasma Clearance of Calcium Edetate de Sodium, With a Limited Sampling Strategy for the Calculation of Glomerular Filtration Rate (GFR) and Validity Assessment Compared to the Renal Clearance of Inulin : DFGBay
Diagnosis of patients with renal insufficiency and recommendations for medical treatment of patients who suffer from chronic renal failure are based on the different stages of Glomerular Filtration Rate (GFR). Many formulas exist to assess GFR. However these formulas are unreliable in many clinical situations (old people, obese patients…). Methods for measuring GFR using exogenous tracers exist: Inulin and 51Cr-EDTA are historical reference tracers. Renal clearance of Inulin is the gold standard. However, using these methods is restricted to specialized services because it is long and expensive.
There is no medical data for the use of Calcium edetate de sodium as a tracer to assess GFR. Calcium edetate de sodium is a treatment for lead intoxication. The extension of use as a tracer comes from its exclusive elimination by glomerular filtration.
Plasma and renal clearance of Calcium edetate de sodium and Inulin will be measured for every included patient during a hospital day care (First visit V1). For transplanted patients, plasma clearance of Calcium edetate de sodium will be repeated within one week (more or less 48hours) during annual medical check-up of renal transplantation (Second visit V2).
- Conditions
- Kidney Disease
- Being tested
- Dosage of Calcium edetate de sodium
- Keywords
- GFR, Bayesian model, plasma clearance, Calcium edetate de sodium, Inulin
- Medical subject headings
- Kidney Diseases
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Dosage of Calcium edetate de sodiumDrug
There is no medical data for the use of Calcium edetate de sodium as a tracer to assess GFR. Calcium edetate de sodium is a treatment for lead intoxication. The extension of use as a tracer comes from its exclusive elimination by glomerular filtration. Plasma and renal clearance of Calcium edetate de sodium and Inulin will be measured for every included patient during a hospital day care (V1). For transplanted patients, plasma clearance of Calcium edetate de sodium will be repeated within one week (more or less 48hours) during annual medical check-up of renal transplantation.
| Study group | Role | What they receive |
|---|---|---|
| Calcium edetate de sodium versus inulin | Experimental | The designing a Bayesian model of the plasma clearance of Calcium edetate de sodium is compared to the renal clearance of Inulin. Receives: Drug: Dosage of Calcium edetate de sodium |
What is being measured
The primary outcome is the main question the study is designed to answer.
To estimate the DFG by the Bayesian model
the DFG assessed by the Bayesian model of the plasma clearance of Calcium edetate de sodium.
Measured: 1 week
Secondary outcomes (1)
Concordance of GFRBay
Concordance of the Bayesian model of GFR measured during V1 and during V2 to determine the reliability of the method
Measured: 1 week
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted25 Nov 2014 (estimated)
- Study startDec 2014
- Primary completionDec 2015
- Study completionDec 2017
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Kidney DiseaseStudies of the same condition, open and under way.
- More trials run by University Hospital, LimogesThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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 3
- Primary purpose
- Diagnosis
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 30 participants (actual)
Sponsor and investigators
- Lead sponsor
- University Hospital, Limoges
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Julien ALLARD, MD, Principal investigator, University Hospital, Limoges
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02300376
- Sponsor's protocol ID
- I13034
- Acronym
- DFGBay
- Status last verified
- Jun 2016
- First submitted
- 28 Oct 2014
- Last updated
- 11 Jan 2019
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 11 Jan 2019. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Designing a Bayesian Model of the Plasma Clearance of Calcium Edetate de Sodium, With a Limited Sampling Strategy for the Calculation of Glomerular Filtration Rate (GFR) and Validity Assessment Compared to the Renal Clearance of Inulin : DFGBay
- ClinicalTrials.gov ID
- NCT02300376
- Acronym / sponsor ID
- DFGBay / I13034
- Conditions
- Kidney Disease
- Keywords
- GFR, Bayesian model, plasma clearance, Calcium edetate de sodium, Inulin
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 30 participants (actual)
- Lead sponsor
- University Hospital, LimogesUniversity, hospital or other
- Study start
- Dec 2014 (actual)
- Primary completion
- Dec 2015 (actual)
- Study completion
- Dec 2017 (actual)
- First posted
- 25 Nov 2014 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Diagnosis of patients with renal insufficiency and recommendations for medical treatment of patients who suffer from chronic renal failure are based on the different stages of Glomerular Filtration Rate (GFR). Many formulas exist to assess GFR. However these formulas are unreliable in many clinical situations (old people, obese patients…). Methods for measuring GFR using exogenous tracers exist: Inulin and 51Cr-EDTA are historical reference tracers. Renal clearance of Inulin is the gold standard. However, using these methods is restricted to specialized services because it is long and expensive.
There is no medical data for the use of Calcium edetate de sodium as a tracer to assess GFR. Calcium edetate de sodium is a treatment for lead intoxication. The extension of use as a tracer comes from its exclusive elimination by glomerular filtration.
Plasma and renal clearance of Calcium edetate de sodium and Inulin will be measured for every included patient during a hospital day care (First visit V1). For transplanted patients, plasma clearance of Calcium edetate de sodium will be repeated within one week (more or less 48hours) during annual medical check-up of renal transplantation (Second visit V2).
Study design
- Primary purpose
- Diagnosis
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Calcium edetate de sodium versus inulin | Experimental | Drug: Dosage of Calcium edetate de sodiumThe designing a Bayesian model of the plasma clearance of Calcium edetate de sodium is compared to the renal clearance of Inulin. |
Who may qualify
- Ages
- 18 to 80 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- For transplanted patients : patients from 18 to 80 years, after estimation of their renal function by MDRDs formulas (MDRD = Modification of Diet in Renal Disease) , regardless their nephropathy, regardless the age of the transplantation, with a normal state body hydratation, with a social insurance and who have given their prior consent.
- For other patients : patients from 18 to 80 years, after estimation of their renal function by MDRDs formulas, who need a reliable assess of their renal function, with a normal state body hydratation, with a social insurance and who have given their prior consent.
- Inclusion criteria for V2: Transplanted patients who have participated to V1, with stable clinical conditions, with a stable GFR (less than 30% variation of creatinine clearance by MDRDs formulas) and who have given their prior consent.
Key exclusion criteria (12 listed)
- Hypersensitivity to Calcium edetate de sodium
- Inulin or excipients
- Lead or other heavy metal intoxication
- Volume expansion or dehydration
- Acute renal disease
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Dosage of Calcium edetate de sodiumThere is no medical data for the use of Calcium edetate de sodium as a tracer to assess GFR. Calcium edetate de sodium is a treatment for lead intoxication. The extension of use as a tracer comes from its exclusive elimination by glomerular filtration. Plasma and renal clearance of Calcium edetate de sodium and Inulin will be measured for every included patient during a hospital day care (V1). For transplanted patients, plasma clearance of Calcium edetate de sodium will be repeated within one week (more or less 48hours) during annual medical check-up of renal transplantation. | Drug | Calcium edetate de sodium versus inulin |
Primary outcome
To estimate the DFG by the Bayesian model
Time frame: 1 week
the DFG assessed by the Bayesian model of the plasma clearance of Calcium edetate de sodium.
1 secondary outcome
Concordance of GFRBay
Time frame: 1 week
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 11 Jan 2019.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Julien ALLARD, MD principal investigator
University Hospital, Limoges
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Dosage of Calcium edetate de sodium in people with Kidney Disease, run by University Hospital, Limoges at 1 site in France.
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 3 inclusion and 12 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: finished, as of the sponsor's last update on 11 Jan 2019. 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 France. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
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?
To estimate the DFG by the Bayesian model (time frame: 1 week). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 11 Jan 2019.