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Kidney DiseasesEvoCit-HDNCT03887468

Hemodialysis Adequacy Using a Heparin-grafted Dialyzer and a Citrate-enriched Dialysate

A study testing EvoCit and EvoHep in people with Kidney Diseases and Hemodialysis Complication, run by Universitair Ziekenhuis Brussel at 2 sites in Belgium.

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

After providing informed consent, patients will be randomized to either the intervention treatment ("EvoCit procedure") or the control treatment ("EvoHep procedure"). After randomization, each study arm consists of four weeks of 3x4 hours hemodialysis treatments according to the allocated protocol. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
EvoCit and EvoHep
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
38 participants
Where
2 sitesBelgium
Study dates
15 May 2018to 4 Dec 2019
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 treated with hemodialysis or hemodiafiltration since at least three months.
  • Hemodialysis or hemodiafiltration prescription of 3 x 4 hours weekly.
  • ≥ 18 years of age.
  • Patients able and agree to provide signed informed consent.

Who cannot join

  • Contraindication to heparin defined as known heparin-induced thrombopenia or active bleeding risk with contra-indication for systemic anticoagulation, categorized as defined by Swartz and Port1.
  • Planned surgery during study period, including scheduled living-donor kidney transplantation during study period.
  • Hypercoagulable state defined as known malignancy, known APC resistance/FV Leiden, known prothrombin gene mutation, known protein C or protein S deficiency, known antithrombin deficiency.
  • Mean Qb of <300ml/min during one of the last 3 dialysis sessions before inclusion.
  • 1 or more results of spKt/Vurea < 1,35 during the last three months prior to study inclusion.
  • Need for 2 or more supplementary dialysis sessions on top of the regular 3x4 hours weekly hemodialysis regimen during the last month before inclusion.
Show all 22Show fewer
  • Vascular access dysfunction defined as
  • use of urokinase the 2 months before study inclusion, including to restore catheter permeability.
  • non-tunneled hemodialysis catheter use.
  • known AV access outflow tract stenosis.
  • planned vascular access intervention.
  • planned vascular access conversion.
  • Known allergy against heparin grafted AN69STmembranes.
  • Use of ACE-inhibitor
  • Use of vitamin K antagonist
  • Use of novel oral anticoagulant therapy.
  • Any medical condition, which puts the patient at risk of premature study termination in the opinion of the investigator.
  • Planned conversion of dialysis modality during study period or planned absence/leave (including pregnancy or planned pregnancy).
  • Symptomatic hypocalcemia.
  • Hb < 8g/dl at screening.
  • Hct > 45% at screening.
  • Perdialytic total parenteral nutrition therapy

Trial locations and contacts

2 sites in 1 country.

Belgium2 sites
  • UZ Brussel

    Jette, 1090

  • CHU Brugmann

    Laken, 1020

Other trials in Belgium

About this study

Official title: Dialysis Adequacy and Clotting Complications During Anticoagulation-free Hemodialysis Using a Heparin-grafted Dialyzer and a Citrate-enriched Dialysate: a Prospective Randomized Crossover Study. (EvoCit-HD Study)

After providing informed consent, patients will be randomized to either the intervention treatment ("EvoCit procedure") or the control treatment ("EvoHep procedure").

After randomization, each study arm consists of four weeks of 3x4 hours hemodialysis treatments according to the allocated protocol. After the last dialysis treatment of the fourth treatment week and after a long interdialytic interval, patients will crossover to the alternative hemodialysis procedure. After crossover, the study will be completed with, again, four weeks of 3x4 hours hemodialysis treatments according to the allocated protocol.

Being tested
EvoCit, EvoHep
Keywords
dialysis adequacy, clotting
Medical subject headings
Kidney Diseases, Kidney Failure, Chronic, Thrombosis

What participants receive

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

  • EvoCitDevice

    hemodialysis using the combination of the Evodial dialyzer with a citrate enriched dialysate

  • EvoHepDevice

    hemodialysis using the combination of the Evodial dialyzer with a conventional bicarbonate based dialysate and systemic anticoagulation using unfractionated heparin

Study groups in NCT03887468
Study groupRoleWhat they receive
"EvoCit"Active comparatorStandardized hemodialysis treatments 3x4hours/week. Intervention: "EvoCit procedure" using a heparin-grafted AN69ST dialyzer in combination with a citric acid enriched dialysate without any systemic anticoagulation.
Receives: Device: EvoCit
"EvoHep"Active comparatorControl: "EvoHep procedure" using a heparin-grafted AN69ST dialyzer in combination with a conventional bicarbonate-based dialysate and standardized systemic anticoagulation using unfractionated heparin.
Receives: Device: EvoHep

What is being measured

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

  1. change in dialysis adequacy

    spKt/Vurea

    Measured: every midweek dialysis session through study duration, ie 2x4 weeks

Secondary outcomes (5)
  1. proportion of thrombotic dysfunction

    premature termination of the dialysis session

    Measured: every HD session through study duration, ie 2x4 weeks

  2. change in dialysis adequacy expressed by middle molecule (MM) clearance

    MM clearances

    Measured: every 1st and 4th week HD session through study duration, ie 2x4 weeks

  3. occurence of complete circuit thrombosis

    rapidly occurring thrombosis of the extracorporeal circuit, which does not allow complete retransfusion of the blood circuit even if prescribed treatment duration is reached

    Measured: every HD session through study duration, ie 2x4 weeks

  4. change in membrane coagulation

    total cell volume measurement of the dialyzer after hemodialysis

    Measured: every midweek HD session through study duration, ie 2x4 weeks

  5. occurence of biological evaluation of coagulation activation

    TAT, PF1+2,

    Measured: every 1st and 4th week HD session through study duration, ie 2x4 weeks

Timeline

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

  1. First posted25 Mar 2019
  2. Study start15 May 2018
  3. Primary completion4 Dec 2019
  4. Study completion4 Dec 2019

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
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
38 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03887468
Sponsor's protocol ID
UZB-NEF-2017-EvoCit-HD
Acronym
EvoCit-HD
Status last verified
Jan 2020
First submitted
22 Jan 2019
Last updated
18 Jan 2020
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Natale P, Palmer SC, Ruospo M, Longmuir H, Dodds B, Prasad R, Batt TJ, Jose MD, Strippoli GF. Anticoagulation for people receiving long-term haemodialysis. Cochrane Database Syst Rev. 2024 Jan 8;1(1):CD011858. doi: 10.1002/14651858.CD011858.pub2.

    PubMed 38189593
  • Francois K, De Clerck D, Tonnelier A, Cambier ML, Orlando C, Jochmans K, Cools W, Wissing KM. Dialyzer Performance During Hemodialysis Without Systemic Anticoagulation Using a Heparin-Grafted Dialyzer Combined With a Citrate-Enriched Dialysate: Results of the Randomized Crossover Noninferiority EvoCit Study. Am J Kidney Dis. 2022 Jan;79(1):79-87.e1. doi: 10.1053/j.ajkd.2021.04.004. Epub 2021 Apr 30.

    PubMed 33940113

Questions about this trial

What is this clinical trial studying?

A study testing EvoCit and EvoHep in people with Kidney Diseases and Hemodialysis Complication, run by Universitair Ziekenhuis Brussel at 2 sites in Belgium.

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 4 inclusion and 22 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 18 Jan 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Belgium. 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?

change in dialysis adequacy (time frame: every midweek dialysis session through study duration, ie 2x4 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 NCT03887468, which also lists 2 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 18 Jan 2020.

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