Haemodiafiltration vs Conventional Haemodialysis in Children

NCT ID: NCT02063776

Last Updated: 2018-02-22

Basic Information

• Recruitment Status: UNKNOWN
• Total Enrollment: 150 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2014-02-28
• Study Completion Date: 2019-12-31

Brief Summary

Children on conventional haemodialysis (HD) die of heart disease. Also, they can be malnourished and short. Haemodiafiltration (HDF) is a newer type of dialysis that achieves better removal of toxins and excess fluid than HD. On HDF, adults have a longer survival and children show improved growth, but mechanisms are not understood.

We will follow children in the UK and Europe to compare HDF and HD. We will monitor growth, heart and blood vessel scans, blood markers and quality of life. If the 3H (HDF-Hearts-Height) study shows reduced cardiovascular morbidity and better growth, HDF may be adopted as the preferred type of dialysis in children.

Detailed Description

Background: Children on conventional haemodialysis (HD) have a 1000-fold higher mortality than their healthy peers and can have malnutrition and growth retardation. Haemodiafiltration (HDF) achieves better clearance of uraemic solutes across a wide molecular-weight range and performs greater ultrafiltration than conventional HD. Randomised controlled trials in adults have shown 35-45% improved survival and reduced cardiovascular mortality on HDF with high convection volumes. Excellent catch-up growth has been demonstrated in children on HDF, but mechanisms are poorly understood.

Hypothesis: HDF improves the cardiovascular risk profile, growth and quality of life (QoL) compared to conventional HD. Primary outcome measures are carotid intima-media thickness (cIMT) and height standard deviation score (SDS).

Plan of investigation: Incident and prevalent patients on HDF or HD who are expected to remain on dialysis for >6-months and who have a single pool Kt/v>1.2 will be compared in a 1:1 study design. Anthropometric measures (height SDS, body mass index SDS) and QoL questionnaires will be monitored at baseline and 6-monthly. Cardiovascular measures (cIMT, pulse wave velocity, left ventricular mass index and 24-hour BP) will be measured annually. 6-monthly blood tests will measure nutritional biomarkers, mineral dysregulation, inflammation and middle-molecule clearance. Outcome measures will be standardised to the convective clearance dose per m2 body surface area. Recruitment will continue for 2½ years with minimum follow-up of 6-months.

Children will be recruited from all UK dialysis units, but small patient numbers (10-12/year) necessitate collaborations with European centres. HDF and HD patients across Europe who are part of the Cardiovascular Comorbidity in Childhood CKD (4C) study will be included and vascular scans will be captured from this study. From ESPN/ERA-EDTA registry data we estimate ~100 children on HDF over the study period.

Outcomes: If the 3H (HDF-Hearts-Height) study shows that HDF reduces cardiovascular morbidity and improves growth it may lead to HDF being adopted as the standard for in-centre dialysis.

Conditions

Children; Haemodialysis; Haemodiafiltration

Study Design

• Observational Model Type: CASE_CONTROL
• Study Time Perspective: PROSPECTIVE

Study Groups

Children on HDF

No interventions assigned to this group

Children on conventional HD

No interventions assigned to this group

Eligibility Criteria

Inclusion Criteria

1. All children 5 - 21 years age undergoing HDF in paediatric dialysis centres (incident and prevalent patients)

2. Age-matched HD patients

3. Prevalent HDF and HD patients must achieve a single pool Kt/v>1.2 in the month preceding recruitment

Exclusion Criteria

1. Children in whom a living donor kidney transplant is planned within 6-months of start of dialysis

• Minimum Eligible Age: 5 Years
• Maximum Eligible Age: 21 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Great Ormond Street Hospital for Children NHS Foundation Trust

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Rukshana C Shroff, MD FRCPCH PhD

Role: STUDY_CHAIR

Great Ormond Street Hospital for Children NHS Foundation Trust

Locations

Rukshana Shroff

London, , United Kingdom

Countries

United Kingdom

References

Shroff R, Bayazit A, Stefanidis CJ, Askiti V, Azukaitis K, Canpolat N, Agbas A, Anarat A, Aoun B, Bakkaloglu S, Bhowruth D, Borzych-Duzalka D, Bulut IK, Buscher R, Dempster C, Duzova A, Habbig S, Hayes W, Hegde S, Krid S, Licht C, Litwin M, Mayes M, Mir S, Nemec R, Obrycki L, Paglialonga F, Picca S, Ranchin B, Samaille C, Shenoy M, Sinha M, Smith C, Spasojevic B, Vidal E, Vondrak K, Yilmaz A, Zaloszyc A, Fischbach M, Schaefer F, Schmitt CP. Effect of haemodiafiltration vs conventional haemodialysis on growth and cardiovascular outcomes in children - the HDF, heart and height (3H) study. BMC Nephrol. 2018 Aug 10;19(1):199. doi: 10.1186/s12882-018-0998-y.

Reference Type: DERIVED

PMID: 30097064 (View on PubMed)

Agbas A, Canpolat N, Caliskan S, Yilmaz A, Ekmekci H, Mayes M, Aitkenhead H, Schaefer F, Sever L, Shroff R. Hemodiafiltration is associated with reduced inflammation, oxidative stress and improved endothelial risk profile compared to high-flux hemodialysis in children. PLoS One. 2018 Jun 18;13(6):e0198320. doi: 10.1371/journal.pone.0198320. eCollection 2018.

Reference Type: DERIVED

PMID: 29912924 (View on PubMed)

Other Identifiers

13NU02

Identifier Type: -

Identifier Source: org_study_id