- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01388270
Effect of a Pre Heparin Coated Dialysis Filter on Coagulation During Hemodialysis
The Effect of a Heparin-coated Dialysis Filter (Evodial) on Clotting and Intravascular Coagulation During Hemodialysis (HD) When Compared to a Conventional Polyflux Filter (170H)
The purpose of this study is to determine whether the heparin-coated dialysis filter is superior to a conventional filter during hemodialysis in twelve stable, chronic hemodialysis (HD) patients.
The antithrombogenic properties of the heparin-coated dialysis filter and of the conventional filter will be compared by means of statistical tests.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
In the present study twelve chronic hemodialysis (HD) patients will be included. Exclusion criteria are use of acetylsalicylic acid and/warfarin, clinical signs of infection and disseminated malignant disease. For each patient four HD sessions will be investigated; alternating with use of the pre-heparin-coated filter or the conventional filter. Dalteparin is reduced to 50% of the conventional dose and is given as one single bolus dose at start of HD.
The venous drip chamber will be visually inspected for evaluation of clot score during each HD session. The filter will be visually inspected for clot score at the end of each session.
Blood specimens will be drawn systematically during each HD session to evaluate platelet and coagulation activity as well as anti Factor Xa activity, haematology and urea/creatinine to evaluate dialysis effect.
The antithrombogenic properties of the pre-heparin-coated filter and the conventional filter will be compared by means of statistical tests. The hypothesis is that the pre-heparin-coated filter induces significantly less clot score in the extracorporeal system during hemodialysis and also significantly less intravascular activation of the coagulation system compared to the conventional filter.
Study Type
Enrollment (Actual)
Phase
- Phase 4
Contacts and Locations
Study Locations
-
-
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Oslo, Norway, 0407
- Department of nephrology, Oslo University Hospital, Ullevål
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Stable HD patients of at least 18 years of age.
- HD treatment for at least one month.
- Dialysis time at least 4 hours three times per week.
- Stable Hemoglobin value of at least 11 g/dl during the last 4 weeks.
Exclusion Criteria:
- Use of warfarin and/or acetylsalicylic acid.
- Disseminated malignant disease.
- Clinical signs of infection.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Evodial
a pre-heparin-coated hemodialysis filter
|
Use of the pre-heparin-coated filter compared to the conventional filter in a cross over design
Other Names:
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No Intervention: 170 H
Conventional filter
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Activation of the intravascular coagulation system during hemodialysis with use of a pre-heparin-coated filter compared to a conventional filter
Time Frame: Activation of the intravascular coagulation system is assessed during four dialysis sessions within a two weeks period for a single patient
|
Blood specimens for analysis of prothrombin fragment 1+2 and beta-thromboglobulin will be drawn at start of hemodialysis and after three and four hours of all hemodialysis sessions.
|
Activation of the intravascular coagulation system is assessed during four dialysis sessions within a two weeks period for a single patient
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
A secondary outcome measure is degree of clot score in the extracorporeal system during hemodialysis with use of a pre-heparin-coated filter compared to the conventional filter.
Time Frame: The degree of clot score in the extracorporeal system is assessed during four hemodialysis sessions that for a single patient take place within a time frame of two weeks
|
Degree of clot score will be evaluated in the venous drip chamber as follows: 1=normal (no signs of clot).
2=fibrinous ring, 3=clot and 4=stop in dialysis due to high degree of clotting
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The degree of clot score in the extracorporeal system is assessed during four hemodialysis sessions that for a single patient take place within a time frame of two weeks
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Solbjørg Sagedal, PhD, Oslo University Hospital, Ullevål
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 2010/3019-2
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