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Chronic Kidney FailureRHODESNCT00781690

Reduction of Heparin Dose in Dialysis With Evodial System

A study testing Evodial hemodialysers and Evodia blood lines in people with Chronic Kidney Failure, run by Vantive Health LLC at 7 sites in 4 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The current clinical study aims at defining an index of Anti Xa, which is the marker to evaluate the activity of heparin, at the end of the dialysis treatment and so showing the possibility to decrease heparin doses during hemodialysis when using Evodial hemodialyzer. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Chronic Kidney Failure
What is being tested?
Evodial hemodialysers and Evodia blood lines
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
53 participants
Where
7 sitesin 4 countries
Study dates
Sep 2008to Feb 2010
Phase
Interventional
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

  • Patients suffering from chronic renal failure,
  • Patients treated in HD three times a week for at least 3 months, with a stable heparin dose and the same filter,
  • Patients treated in 4-4.5 hours HD mode with a blood flow between 300-350 ml/min,
  • Patients for whom either LMWH (Enoxaparin, Nadroparin, Tinzaparin) or UFH is used,
  • Patients with a well-functioning vascular access as judged by the investigator,
  • Patients treated either on AK, Innova or Integra dialysis machines equipped with ionic dialysance device,
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  • Patients older than 18 years,
  • Patients with negative serologies (AIDS, Hepatitis)
  • Patients having signed consent to participate in the study.

Who cannot join

  • Patient with HIT or known heparin allergy,
  • Patient treated in HD in single needle mode,
  • Patients with catheter,
  • Patients with acute inflammatory event that may affect, as judged by investigator patients' safety or study results,
  • Patients participating in other studies that could interfere with the objective of this study,
  • Patients with active malignant disease,
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  • Patients receiving heparin outside dialysis treatment,
  • Patients under guardianship,
  • Pregnant women, nursing mothers and women planning a pregnancy during the course of this study,
  • Patients with serious history of coagulopathy,
  • Patients receiving Anti-Vitamin K medication,
  • Patients receiving an association of anti platelets agents,
  • Patients with heparin dose that can not be reduced for technical reason (excluding patients receiving too low heparin dose with no possibility of further reduction).

Trial locations and contacts

7 sites in 4 countries.

7 sites in 4 countries

France4 sites
  • Calydial dialysis unit

    Irigny, 69540

  • Clinique St Exupéry

    Toulouse, 31400

  • Hopital Brabois

    Vandœuvre-lès-Nancy, 54511

  • ALTIR Dialysis center

    Vandœuvre-lès-Nancy

Other trials in France

Germany1 site
  • Medizinische Hochschule

    Hanover, 30625

Other trials in Germany

Italy1 site
  • Borgo Trento Hospital

    Verona

Other trials in Italy

Sweden1 site
  • Karolinska Hospital

    Stockholm

Other trials in Sweden

About this study

Official title: Pilot, Prospective, Multicenter, Open and Non-randomised Study: Definition of an Index of Anti Xa Value at the End of Hemodialysis Treatment.

The current clinical study aims at defining an index of Anti Xa, which is the marker to evaluate the activity of heparin, at the end of the dialysis treatment and so showing the possibility to decrease heparin doses during hemodialysis when using Evodial hemodialyzer. Actually, an elevated value of AntiXa at the end of the dialysis treatment increases the risk of bleeding for patients with diabetic retinopathy, or for instance in case of fall at home.

Read the detailed description

In parallel to the new hemodialyzer, Evodia blood lines were developed to improve characteristics of the extracorporeal circuit in term of reduced activation of the coagulation system and lower deposits of clot components.

The aim is to provide a system (hemodialyzer and extracorporeal circuit) with a low thrombogenicity and that can be used with low heparin dose in order to reduce the patients' bleeding risk at the end of HD treatment.

Measurements of TAT (Thrombin-Antithrombin), the marker of the activation of the coagulation, will be performed during the study in order to evaluate the thrombogenicity of the system.

The ionic clearance will be collected during all treatments to evaluate the performance of the hemodialyzer.

The study will be divided into three steps

  • Period 1: Usual heparin dose with usual hemodialyzer and standard blood lines (baseline),
  • Period 2: Decrease of heparin dose with Evodial hemodialyzer and standard bloodlines
  • Period 3: Lowest heparin dose defined in step 2 using the system Evodial hemodialyzer and SMA bloodlines.

Each patient included into the study will perform the three steps. As the risk of extracorporeal circuit clotting will be rather important, no control group (usual hemodialyzer with heparin decrease dose) will be performed.

Being tested
Evodial hemodialysers and Evodia blood lines
Keywords
Chronic kidney failure, Heparin, Hemodialysis, Biocompatibility
Medical subject headings
Kidney Failure, Chronic

What participants receive

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

  • Evodial hemodialysers and Evodia blood linesDevice

    Maximum 8 weeks treatment with Evodial dialysers with reduction of heparin dose

Study groups in NCT00781690
Study groupRoleWhat they receive
1ExperimentalTreatment with Evodial with reduction of heparin across study period
Receives: Device: Evodial hemodialysers and Evodia blood lines

What is being measured

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

  1. The primary criterion is the measurement of Anti Xa at the end of dialysis sessions.

    Measured: End of dialysis treatment

Secondary outcomes (5)
  1. Follow-up of aPTT for patients treated with UFH,

    Measured: Kinetic on single dialysis treatment

  2. Evaluation of TAT (Thrombin-Antithrombin) complex,

    Measured: Kinetic on single dialysis treatment

  3. Follow-up of ionic clearance (Diascan) measurements during HD sessions,

    Measured: Kinetic of single dialysis treatment

  4. Evaluation of the quality of the rinse-back (filter and circuit) via a visual scale,

    Measured: End of dialysis treatment

  5. Follow-up of AE/SAE.

    Measured: All treatments during study period

Timeline

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

  1. First posted29 Oct 2008 (estimated)
  2. Study startSep 2008
  3. Primary completionFeb 2010
  4. Study completionFeb 2010

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 N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
53 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00781690
Sponsor's protocol ID
1456
Other IDs
ISRCTN 93952087
Acronym
RHODES
Status last verified
Mar 2025
First submitted
28 Oct 2008
Last updated
13 Mar 2025
Results posted
No
Data monitoring committee
No

Publications

  • Lavaud S, Canivet E, Wuillai A, Maheut H, Randoux C, Bonnet JM, Renaux JL, Chanard J. Optimal anticoagulation strategy in haemodialysis with heparin-coated polyacrylonitrile membrane. Nephrol Dial Transplant. 2003 Oct;18(10):2097-104. doi: 10.1093/ndt/gfg272.

    PubMed 13679486
  • Chanard J, Lavaud S, Maheut H, Kazes I, Vitry F, Rieu P. The clinical evaluation of low-dose heparin in haemodialysis: a prospective study using the heparin-coated AN69 ST membrane. Nephrol Dial Transplant. 2008 Jun;23(6):2003-9. doi: 10.1093/ndt/gfm888. Epub 2007 Dec 21.

    PubMed 18156457
  • Kessler M, Gangemi C, Gutierrez Martones A, Lacombe JL, Krier-Coudert MJ, Galland R, Kielstein JT, Moureau F, Loughraieb N. Heparin-grafted dialysis membrane allows minimal systemic anticoagulation in regular hemodialysis patients: a prospective proof-of-concept study. Hemodial Int. 2013 Apr;17(2):282-93. doi: 10.1111/j.1542-4758.2012.00733.x. Epub 2012 Aug 23.

    PubMed 22925178

Questions about this trial

What is this clinical trial studying?

A study testing Evodial hemodialysers and Evodia blood lines in people with Chronic Kidney Failure, run by Vantive Health LLC at 7 sites in 4 countries.

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 9 inclusion and 13 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 13 Mar 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 7 sites in France, Germany, Italy, Sweden. 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.

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?

The primary criterion is the measurement of Anti Xa at the end of dialysis sessions. (time frame: End of dialysis treatment). 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 NCT00781690, which also lists 3 linked publications.

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 13 Mar 2025.

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