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Sponsors and Collaborators: |
Ege University Fresenius Medical Care North America |
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Information provided by: | Ege University |
ClinicalTrials.gov Identifier: | NCT00295191 |
This study aims to investigate the effects of high flux dialyser use and ultra pure dialysate utilization on cardiovascular disease by evaluating cardiovascular morbidity and mortality, progression of carotid artery intima-media thickness and coronary artery calcifications, inflammatory state, lipid levels, nutritional status, and erythropoietin requirement in hemodialysis patient population. It is hypothesized that both interventions in this project may diminish cardiovascular disease in hemodialysis patients.
Condition | Intervention | Phase |
---|---|---|
End-Stage Renal Disease Hemodialysis |
Procedure: high-flux membrane Procedure: low-flux membrane Procedure: conventional dialysate Procedure: ultrapure dialysate |
Phase IV |
Study Type: | Interventional |
Study Design: | Treatment, Randomized, Open Label, Active Control, Factorial Assignment, Efficacy Study |
Official Title: | Multiple Interventions Related to Dialysis Procedures in Order to Reduce Cardiovascular Morbidity and Mortality in Hemodialysis Patients: Prospective, Randomized, Controlled Study |
Estimated Enrollment: | 704 |
Study Start Date: | November 2005 |
Estimated Study Completion Date: | March 2009 |
Estimated Primary Completion Date: | March 2009 (Final data collection date for primary outcome measure) |
Arms | Assigned Interventions |
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1: Active Comparator
high-flux dialyser
|
Procedure: high-flux membrane
high-flux dialyser
|
2: Active Comparator
low-flux dialyser
|
Procedure: low-flux membrane
low-flux dialyser
|
3: Active Comparator
conventional dialysate
|
Procedure: conventional dialysate
conventional dialysate
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4: Active Comparator
ultrapure dialysate
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Procedure: ultrapure dialysate
ultrapure dialysate
|
This proposed prospective, randomized, controlled study aims to investigate the effects of high flux dialyser use and ultra pure dialysate utilization on cardiovascular disease by evaluating cardiovascular morbidity and mortality, progression of carotid artery intima-media thickness and coronary artery calcifications, inflammatory state, lipid levels, nutritional status, and erythropoietin requirement in hemodialysis patient population. It is hypothesized that both interventions in this project may diminish cardiovascular disease in hemodialysis patients.
Their beneficial effects may be directly represented by significantly reduced cardiovascular morbidity and mortality. The proposed additional investigations, such as a possible decrease in the progression of coronary artery calcification and carotid artery intima-media thickness, will help us to understand the mechanisms of the expected reduction or serve as surrogate markers of atherosclerosis, in case the benefit of the interventions cannot be proven with statistical significance.
Seven hundred and four hemodialysis patients treated in Ege University Hospital Dialysis Unit and eight FMC Clinics will be enrolled into the study (3-year follow-up; percentage of yearly expected end-point 10%;expected event-free survival rate for control group during three year is 72.9%,a bilateral alpha risk equal to 5%; an 90% power to detect an increase of 15% in event-free survival at the end of 3-year follow-up in favor of the each intervention group). Annual drop-out rate is estimated as %15-20.
It is designed as 2x2 factorial; the cases, first, will be randomized to high flux dialyser and low flux dialyser arms; then, they will be re-randomized to ultra pure (online-produced by using Diasafe and checked by endotoxin measurement) and standard dialysate arms. The study will last three years; an intermediate analysis will be performed at the 18th month.
Primary end-point is the composite of cardiovascular mortality and myocardial infarction, stroke, revascularization, unstable angina pectoris requiring hospitalization (at 18 ad 36th month).
Secondary end-points are overall mortality, progression of coronary artery calcification, progression of carotid artery intima-media thickness, changes in post-dialysis body weight and upper mid-arm circumference, hematocrit and related rHu-EPO doses, changes in the levels of albumin, transferrin, total cholesterol, triglyceride, HDL cholesterol, LDL cholesterol, high sensitive CRP, and β-2 microglobulin.
At the 0-18-36 months, coronary artery calcification will be assessed by multi-slice CT and carotid artery intima-media thickness by B-mode ultrasonography. Lipids and CRP will be measured in every three months.
Ages Eligible for Study: | 18 Years to 80 Years |
Genders Eligible for Study: | Both |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
Exclusion Criteria:
Turkey | |
Ege University School of Medicine | |
Bornova-Izmir, Turkey, 35100 | |
Turkey, Izmir | |
FMC Clinics | |
Bornova, Izmir, Turkey, 35100 |
Principal Investigator: | Ercan Ok, M.D | Ege University School of Medicine Nephrology Department |
Responsible Party: | Fresenius Medical Care ( Fresenius Medical Care ) |
Study ID Numbers: | EGE99803466003 |
Study First Received: | February 22, 2006 |
Last Updated: | June 30, 2008 |
ClinicalTrials.gov Identifier: | NCT00295191 |
Health Authority: | Turkey: Ministry of Health |
end-stage renal disease hemodialysis cardiovascular morbidity and mortality high flux dialyser |
ultrapure dialysate coronary vascular calcifications carotid intima-media thickness atherosclerosis |
Atherosclerosis Renal Insufficiency Urologic Diseases Renal Insufficiency, Chronic |
Kidney Failure, Chronic Kidney Diseases Kidney Failure |