NCT03820401

Brief Summary

Coagulation within the dialyzer membrane fibres is an obvious biological sign of bio-incompatibility. To avoid clotting during extracorporeal treatment, an anticoagulant is added to the circuit, resulting in an increased risk for bleeding complications. In addition, there is evidence that a substantial number of fibers can become blocked before this is reflected in routinely observed parameters, or in termination of the dialysis session. Little is known about the impact of such subclinical clotting on dialyzer performance in terms of solute clearance. Membrane clogging due to deposition of proteins and red blood cells on the dialysis membrane may influence both the diffusive and convective transport characteristics of the dialyzer membrane before leading to complete dialyzer clotting. In 2018, the invesitgators described a method to objectively count the number of blocked fibres inside a dialyzer using a micro-CT scanning technique. In the present trial, the investigators use this method to assess the resistance of the dialyzer to clotting, and to evaluate the impact of subclinical fibre blocking on solute removal and thus performance of a dialyzer during a dialysis session. The aim of this randomized cross-over study is to objectively quantify the performance of different dialyzer membranes: ATA™ membrane in the Solacea™ dialyzer, polysulfone membrane in the FX800 dialyzer, and the heparin-coated AN membrane in the Evodial dialyzer, and this with different anticoagulation strategies.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Mar 2018

Geographic Reach
1 country

1 active site

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

Study Start

First participant enrolled

March 7, 2018

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 30, 2018

Completed
8 months until next milestone

Study Completion

Last participant's last visit for all outcomes

January 17, 2019

Completed
5 days until next milestone

First Submitted

Initial submission to the registry

January 22, 2019

Completed
7 days until next milestone

First Posted

Study publicly available on registry

January 29, 2019

Completed
Last Updated

January 29, 2019

Status Verified

January 1, 2019

Enrollment Period

3 months

First QC Date

January 22, 2019

Last Update Submit

January 25, 2019

Conditions

Keywords

hemodialyzerfibre clotting

Outcome Measures

Primary Outcomes (1)

  • Number of open fibres in the dialyzer

    Number of open fibres as assessed post dialysis by a reference microCT scanning technique

    17 weeks

Secondary Outcomes (1)

  • Extraction ratio of three middle molecules in the dialyzer

    4 weeks

Study Arms (17)

Solacea_postHDF_1/1anticoagulation

EXPERIMENTAL

intervention: * choice of dialyzer: Solacea dialyzer (Nipro, Japan) * choice of dialysis mode: post dilution hemodiafiltration * choice of anticoagulation strategy: standard anticoagulation dose measurements: * blood \& dialysate sampling at 60min after dialysis start * microCT scanning of rinsed and dried dialyzer, post dialysis in order to count open fibers

Device: choice of dialyzerOther: choice of dialysis modeOther: choice of anticoagulation strategy

Solacea_postHDF_1/2anticoagulation

EXPERIMENTAL

intervention: * choice of dialyzer: Solacea dialyzer (Nipro Japan) * choice of dialysis mode: post dilution hemodiafiltration * choice of anticoagulation strategy: the patient receives only half of his/her standard anticoagulation dose measurements: * blood \& dialysate sampling at 60min after dialysis start * microCT scanning of rinsed and dried dialyzer, post dialysis in order to count open fibers

Device: choice of dialyzerOther: choice of dialysis modeOther: choice of anticoagulation strategy

FX800_postHDF_1/1anticoagulation

EXPERIMENTAL

intervention: * choice of dialyzer: FX800 dialyzer (Fresenius Medical Care, Germany) * choice of dialysis mode: post dilution hemodiafiltration * choice of anticoagulation strategy: standard anticoagulation dose measurements: * blood \& dialysate sampling at 60min after dialysis start * microCT scanning of rinsed and dried dialyzer, post dialysis in order to count open fibers

Device: choice of dialyzerOther: choice of dialysis modeOther: choice of anticoagulation strategy

FX800_postHDF_1/2anticoagulation

EXPERIMENTAL

intervention: * choice of dialyzer: FX800 dialyzer (Fresenius Medical Care, Germany) * choice of dialysis mode: post dilution hemodiafiltration * choice of anticoagulation strategy: the patient receives only half of his/her standard anticoagulation dose measurements: * blood \& dialysate sampling at 60min after dialysis start * microCT scanning of rinsed and dried dialyzer, post dialysis in order to count open fibers

Device: choice of dialyzerOther: choice of dialysis modeOther: choice of anticoagulation strategy

Solacea_HD_1/1anticoagulation

EXPERIMENTAL

intervention: * choice of dialyzer: Solacea dialyzer (Nipro, Japan) * choice of dialysis mode: hemodialysis * choice of anticoagulation strategy: standard anticoagulation dose measurement: \- microCT scanning of rinsed and dried dialyzer, post dialysis in order to count open fibers

Device: choice of dialyzerOther: choice of dialysis modeOther: choice of anticoagulation strategy

Solacea_HD_1/2anticoagulation

EXPERIMENTAL

intervention: * choice of dialyzer: Solacea dialyzer (Nipro, Japan) * choice of dialysis mode: hemodialysis * choice of anticoagulation strategy: the patient receives only half of his/her standard anticoagulation dose measurements: \- microCT scanning of rinsed and dried dialyzer, post dialysis in order to count open fibers

Device: choice of dialyzerOther: choice of dialysis modeOther: choice of anticoagulation strategy

FX800_HD_1/1anticoagulation

EXPERIMENTAL

intervention: * choice of dialyzer: FX800 dialyzer (Fresenius Medical Care, Germany) * choice of dialysis mode: hemodialysis * choice of anticoagulation strategy: standard anticoagulation dose measurements: \- microCT scanning of rinsed and dried dialyzer, post dialysis in order to count open fibers

Device: choice of dialyzerOther: choice of dialysis modeOther: choice of anticoagulation strategy

FX800_HD_1/2anticoagulation

EXPERIMENTAL

intervention: * choice of dialyzer: FX800 dialyzer (Fresenius Medical Care, Germany) * choice of dialysis mode: hemodialysis * choice of anticoagulation strategy: the patient receives only half of his/her standard anticoagulation dose measurements: \- microCT scanning of rinsed and dried dialyzer, post dialysis in order to count open fibers

Device: choice of dialyzerOther: choice of dialysis modeOther: choice of anticoagulation strategyOther: preparation of dialyzer

FX800_HD_1/2anticoagulation_albuprime

EXPERIMENTAL

intervention: * choice of dialyzer: FX800 dialyzer (Fresenius Medical Care, Germany) * choice of dialysis mode: hemodialysis * choice of anticoagulation strategy: the patient receives only half of his/her standard anticoagulation dose * preparation of dialyzer: the dialyzer was preprimed with albumin solution measurement: \- microCT scanning of rinsed and dried dialyzer, post dialysis in order to count open fibers

Device: choice of dialyzerOther: choice of dialysis modeOther: choice of anticoagulation strategyOther: preparation of dialyzer

Evodial_HD_no anticoagulation

EXPERIMENTAL

intervention: * choice of dialyzer: Evodial 1.3 (Baxter, USA) * choice of dialysis mode: hemodialysis * choice of anticoagulation strategy: no anticoagulation is administered measurement: \- microCT scanning of rinsed and dried dialyzer, post dialysis in order to count open fibers

Device: choice of dialyzerOther: choice of dialysis modeOther: choice of anticoagulation strategy

Evodial_HD_no anticoagulation_albuprime

EXPERIMENTAL

intervention: * choice of dialyzer: Evodial 1.3 (Baxter, USA) * choice of dialysis mode: hemodialysis * choice of anticoagulation strategy: no anticoagulation is administered * preparation of dialyzer: the dialyzer was preprimed with albumin solution measurement: \- microCT scanning of rinsed and dried dialyzer, post dialysis in order to count open fibers

Device: choice of dialyzerOther: choice of dialysis modeOther: choice of anticoagulation strategyOther: preparation of dialyzer

Solacea_preHDF_1/4anticoagulation

EXPERIMENTAL

intervention: * choice of dialyzer: Solacea dialyzer (Nipro Japan) * choice of dialysis mode: pre dilution hemodiafiltration * choice of anticoagulation strategy: the patient receives only 1/4th of his/her standard anticoagulation dose measurements: \- microCT scanning of rinsed and dried dialyzer, post dialysis in order to count open fibers

Device: choice of dialyzerOther: choice of dialysis modeOther: choice of anticoagulation strategy

Solacea_postHDF_1/4anticoagulation

EXPERIMENTAL

intervention: * choice of dialyzer: Solacea dialyzer (Nipro Japan) * choice of dialysis mode: post dilution hemodiafiltration * choice of anticoagulation strategy: the patient receives only 1/4th of his/her standard anticoagulation dose measurements: \- microCT scanning of rinsed and dried dialyzer, post dialysis in order to count open fibers

Device: choice of dialyzerOther: choice of dialysis modeOther: choice of anticoagulation strategy

Solacea_HD_1/4anticoagulation

EXPERIMENTAL

intervention: * choice of dialyzer: Solacea dialyzer (Nipro Japan) * choice of dialysis mode: hemodialysis * choice of anticoagulation strategy: the patient receives only 1/4th of his/her standard anticoagulation dose measurements:microCT scanning of rinsed and dried dialyzer, post dialysis in order to count open fibers

Device: choice of dialyzerOther: choice of dialysis modeOther: choice of anticoagulation strategy

Solacea_preHDF_no anticoagulation

EXPERIMENTAL

intervention: * choice of dialyzer: Solacea dialyzer (Nipro Japan) * choice of dialysis mode: pre dilution hemodiafiltration * choice of anticoagulation strategy: no anticoagulation is administered measurements: \- microCT scanning of rinsed and dried dialyzer, post dialysis in order to count open fibers

Device: choice of dialyzerOther: choice of dialysis modeOther: choice of anticoagulation strategy

Solacea_postHDF_no anticoagulation

EXPERIMENTAL

intervention: * choice of dialyzer: Solacea dialyzer (Nipro Japan) * choice of dialysis mode: post dilution hemodiafiltration * choice of anticoagulation strategy: no anticoagulation is administered measurements: \- microCT scanning of rinsed and dried dialyzer, post dialysis in order to count open fibers

Device: choice of dialyzerOther: choice of dialysis modeOther: choice of anticoagulation strategy

Solacea_HD_no anticoagulation

EXPERIMENTAL

intervention: * choice of dialyzer: Solacea dialyzer (Nipro Japan) * choice of dialysis mode: hemodialysis * choice of anticoagulation strategy: no anticoagulation is administered measurements: \- microCT scanning of rinsed and dried dialyzer, post dialysis in order to count open fibers

Device: choice of dialyzerOther: choice of dialysis modeOther: choice of anticoagulation strategy

Interventions

Fiber blocking is calculated in different commercially available dialyzers

Evodial_HD_no anticoagulationEvodial_HD_no anticoagulation_albuprimeFX800_HD_1/1anticoagulationFX800_HD_1/2anticoagulationFX800_HD_1/2anticoagulation_albuprimeFX800_postHDF_1/1anticoagulationFX800_postHDF_1/2anticoagulationSolacea_HD_1/1anticoagulationSolacea_HD_1/2anticoagulationSolacea_HD_1/4anticoagulationSolacea_HD_no anticoagulationSolacea_postHDF_1/1anticoagulationSolacea_postHDF_1/2anticoagulationSolacea_postHDF_1/4anticoagulationSolacea_postHDF_no anticoagulationSolacea_preHDF_1/4anticoagulationSolacea_preHDF_no anticoagulation

Fiber blocking is calculated in different commercially available dialyzers used in different dialysis stategies

Evodial_HD_no anticoagulationEvodial_HD_no anticoagulation_albuprimeFX800_HD_1/1anticoagulationFX800_HD_1/2anticoagulationFX800_HD_1/2anticoagulation_albuprimeFX800_postHDF_1/1anticoagulationFX800_postHDF_1/2anticoagulationSolacea_HD_1/1anticoagulationSolacea_HD_1/2anticoagulationSolacea_HD_1/4anticoagulationSolacea_HD_no anticoagulationSolacea_postHDF_1/1anticoagulationSolacea_postHDF_1/2anticoagulationSolacea_postHDF_1/4anticoagulationSolacea_postHDF_no anticoagulationSolacea_preHDF_1/4anticoagulationSolacea_preHDF_no anticoagulation

Fiber blocking is calculated in different commercially available dialyzers using different anticoagulation strategies

Evodial_HD_no anticoagulationEvodial_HD_no anticoagulation_albuprimeFX800_HD_1/1anticoagulationFX800_HD_1/2anticoagulationFX800_HD_1/2anticoagulation_albuprimeFX800_postHDF_1/1anticoagulationFX800_postHDF_1/2anticoagulationSolacea_HD_1/1anticoagulationSolacea_HD_1/2anticoagulationSolacea_HD_1/4anticoagulationSolacea_HD_no anticoagulationSolacea_postHDF_1/1anticoagulationSolacea_postHDF_1/2anticoagulationSolacea_postHDF_1/4anticoagulationSolacea_postHDF_no anticoagulationSolacea_preHDF_1/4anticoagulationSolacea_preHDF_no anticoagulation

Fiber blocking is calculated in different commercially available dialyzers either preprimed with Albumin or not

Evodial_HD_no anticoagulation_albuprimeFX800_HD_1/2anticoagulationFX800_HD_1/2anticoagulation_albuprime

Eligibility Criteria

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

You may qualify if:

  • years or older
  • experienced stable dialysis sessions during the last 4 weeks
  • double needle/lumen well-functioning vascular access

You may not qualify if:

  • known coagulation disorder
  • active inflammation
  • malignancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Ghent University Hospital - Nephrology

Ghent, Belgium

Location

Related Publications (2)

  • Vanommeslaeghe F, Van Biesen W, Dierick M, Boone M, Dhondt A, Eloot S. Micro-computed tomography for the quantification of blocked fibers in hemodialyzers. Sci Rep. 2018 Feb 8;8(1):2677. doi: 10.1038/s41598-018-20898-w.

  • 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.

MeSH Terms

Conditions

Thrombosis

Condition Hierarchy (Ancestors)

Embolism and ThrombosisVascular DiseasesCardiovascular Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 22, 2019

First Posted

January 29, 2019

Study Start

March 7, 2018

Primary Completion

May 30, 2018

Study Completion

January 17, 2019

Last Updated

January 29, 2019

Record last verified: 2019-01

Data Sharing

IPD Sharing
Will not share

Locations