The Effect of High-flux Hemodialysis and On-line Hemodiafiltration on Endothelial Function.

Chronic Kidney Disease Requiring Chronic Dialysis Clinical Trial

Official title:

Molecular Mechanisms Involved in Cell Adhesion and Migration Process: Effect of Treatment of Chronic Kidney Disease on Endothelial Dysfunction

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03942744
• Other study ID #: PI17/01785
• Status: Completed
• Phase: N/A
• Start date: November 8, 2018
• Est. completion date: February 25, 2022

Study information

• Verified date: March 2022
• Source: Maimónides Biomedical Research Institute of Córdoba
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The main aim of this project is to evaluate, in patients with chronic kidney disease (CKD5D), the role of adhesion molecules in leukocyte adhesion and transendothelial migration involved in atherogenesis. This trial is a prospective randomized crossover study in CKD5D hemodialysis patients followed in the Nephrology Unit of the Reina Sofia University Hospital (Cordoba, Spain). The estimated inclusion period is two years, with a follow-up of 24 months. Patients will be randomized to high-flux hemodialysis versus online hemodiafiltration with high convective transport (above 21 liters); after 6 months in each dialysis modality they will be switched the other technique for another 6 months. Then, patients will be maintained during 4 weeks in conventional hemodialysis "wash out period", before being started in the other dialysis modality.

Description:

The main aim of this project is to evaluate, in patients with chronic kidney disease (CKD5D), the role of adhesion molecules in leukocyte adhesion and transendothelial migration involved in atherogenesis. This trial is a prospective randomized crossover study in CKD5D hemodialysis patients followed in the Nephrology Unit of the Reina Sofia University Hospital (Cordoba, Spain). The estimated inclusion period is two years, with a follow-up of 24 months. Patients will be randomized to high-flux hemodialysis versus online hemodiafiltration with high convective transport (above 21 liters); after 6 months in each dialysis modality they will be switched the other technique for another 6 months. Then, patients will be maintained during 4 weeks in conventional hemodialysis "wash out period", before being started in the other dialysis modality. Patients will be stratified by age, gender and the presence of diabetes. Routine analytical determinations (urea, creatinine, sodium, potassium, chlorine, total CO2, calcium, phosphorus, FA, PTH, levels 25OH, β2m, ALT, hemoglobin, leukocytes, platelets, glucose, uric acid, total proteins, albumin , PCR, IL-6, ferritin, TSAT and homocysteine), characteristics of hemodialysis and dialysis dose (Kt / V and Kt) will be recorded. Residual renal function will be analysed every three months. In plasma, microRNAs profile and FGF23 levels will be determined. Markers of endothelial dysfunction (CD31 +, CD41-, CD144, CD62E) and subclinical atherosclerosis markers (CD11b, CD41 +) will be measured. The hospitalization and mortality rate due to cardiovascular causes and concurrent cardiovascular events throughout the study (acute myocardial infarction, stroke, transient ischemic attack and peripheral vascular disease) will be assessed along the study period.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 88
• Est. completion date: February 25, 2022
• Est. primary completion date: November 30, 2021
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years to 80 Years

Eligibility

Inclusion Criteria:

• Vascular access with a blood flow > 300ml/min

• Age >18 <80 years written informed consent

Exclusion Criteria:

• Neoplasia

• B hepatitis

• Acute or chronic inflammation life expectance less than one year Included in living donor transplant list immunosupressive drugs

Related Conditions & MeSH terms

• Chronic Kidney Disease Requiring Chronic Dialysis
• Kidney Diseases
• Renal Insufficiency, Chronic

Intervention

Device:
• on-line hemodiafiltration
on-line postdilutional hemodiafiltration with high convective transport above 21 liters

Locations

Country	Name	City	State
Spain	Alejandro Martinmalo	Cordoba	Córdoba
Spain	Hospital universitario Reina Sofia	Córdoba	Cordoba

Sponsors (2)

Lead Sponsor	Collaborator
Maimónides Biomedical Research Institute of Córdoba	Instituto de Salud Carlos III

Country where clinical trial is conducted

Spain, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Effect of two different dialysis modalities (high flux vs online hemodiafiltration) on endothelial function markers: CD31,CD41,CD34; as measured by the percent of labeled cells obtained by flow cytometry.	These parameters will assessed, in patients with chronic kidney disease (CKD5D), Blood will be drawn before the dialysis session following the scheduled of the protocol. The measuremets of CD31 CD41 CD34 will be performend by flow cytometry according to the standard methodology described in methods.	6 months
Secondary	Effect of two different dialysis modalities ( high flux vs online hemodiafiltration) on hospitalization (hospital admission days/year).	Effect of two different dialysis modalities ( high flux vs online hemodiafiltration) on hospitalization (hospital admission days/year). Cardiovascular causes and concurrent cardiovascular events throughout the study (acute myocardial infarction, stroke, transient ischemic attack and peripheral vascular disease) will be also recorded throughout the study.	6 months
Secondary	Effect of two different dialysis modalities ( high flux vs online hemodiafiltration) on Serum concentration of Fibroblast Growth Factor FGF23 (pg/ml) .	The serum concentration of Fibroblast Growth Factor FGF23 will be quantified using commercially available ELISA Kit. (pg/ml). Blood samples will be obtained before the dialysis session.	6 months
Secondary	Effect of two different dialysis modalities ( high flux vs online hemodiafiltration) on vascular injury related microRNAs (relative expression)	The relative expression of microRNAs (126-3p, 223-3p,363-3p, 191-5p). will be determined by RTq-PCR. Blood samples will be obtained before the dialysis session.	6 months