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The Cardiovascular Comorbidity in Children With Chronic Kidney Disease Study

Conditions
Pediatric
Cardiovascular Disease
Chronic Kidney Disease
Registration Number
NCT01046448
Lead Sponsor
Heidelberg University
Brief Summary

Children and adolescents with chronic kidney disease (CKD) are at high risk for cardiovascular (CV) morbidity and mortality. Recent studies suggest that pediatric patients with even moderately impaired kidney function may be afflicted with significant early cardiac and vascular abnormalities.

The pathogenesis and the natural course of CV comorbidity in pediatric CKD patients is still elusive. In this multicenter, prospective, observational study the prevalence, degree and progression of CV comorbidity in children will be characterized and related to CKD progression. The morphology and function of the heart and vessels will be monitored by sensitive, non-invasive methods and will be compared with aged matched healthy controls. Multiple potential clinical, anthropometric, biochemical, and pharmacological risk factors will be monitored prospectively and will be related to CV status. Genotyping might identify predisposing genetic factors for progression of CV comorbidity and underlying nephropathies.

Detailed Description

Adult patients with CKD are at markedly increased risk of dying from cardiovascular events. The risk is most dramatically increased in young patients with end-stage renal disease, who are almost as likely to die from cardiovascular causes as elderly individuals in the general population.

Early morphological and functional vascular abnormalities can be detected even in adolescents with CKD, but information about the prevalence, severity and natural course of vascular lesions in different stages of renal failure is lacking and the factors predisposing to an early onset and rapid progression of cardiovascular morbidity are still elusive.

The pediatric population appears uniquely suited to study the effects of CKD on the cardiovascular system due to the virtual absence of vascular morbidity related to ageing, diabetes and smoking.

In order to improve our understanding of the causes and consequences of cardiovascular comorbidity in children with progressive CKD, a consortium of pediatric nephrologists in Europe has joined to perform a long-term prospective observational study following the cardiovascular health of children as they advance through successive stages of CKD.

The 4C Study will follow up at least 625 patients aged 6 to 17 years with a glomerular filtration rate of 10 to 45 ml/min/1.73 mยฒ in more than 40 pediatric nephrology units in 14 European countries.

The morphology and function of the heart and the large arteries is regularly assessed by sensitive, non-invasive methods and the findings compared to a large group of healthy children.

Multiple potential clinical, anthropometric, biochemical, and pharmacological risk factors are monitored prospectively and will be related to the cardiovascular status of the patients.

A whole genome association study will be performed to identify genetic variants associated with the progression of cardio-vascular alterations and renal failure.

Recruitment & Eligibility

Status
UNKNOWN
Sex
All
Target Recruitment
650
Inclusion Criteria
  • Age 6 to 17 years
  • GFR 10 to 45 ml/min/1.73mยฒ (CKD stage IIIb to V);
Exclusion Criteria
  • Active systemic vasculitis
  • Diabetes mellitus
  • Renal vascular anomalies
  • Anomalies of the limbs preventing standardized diagnostic procedures

Study & Design

Study Type
OBSERVATIONAL
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
Functional and morphological evidence of cardiovascular disease progression (arterial stiffness, myocardial dysfunction, cIMT, LVMI) and association with clinical, anamnestic, anthropometric, biochemical, drug-related and genetic risk factors3 years
Secondary Outcome Measures
NameTimeMethod
Genetic risk factors for early manifesting progressive vascular lesions and progressive kidney disease by the genome-wide SNP-screening and haplotype analysis.3 years

Trial Locations

Locations (43)

Medical University of Vienna

๐Ÿ‡ฆ๐Ÿ‡น

Vienna, Austria

Vilnius University Children's Hospital

๐Ÿ‡ฑ๐Ÿ‡น

Vilnius, Lithuania

Hรดpital de Hautepierre

๐Ÿ‡ซ๐Ÿ‡ท

Strasbourg, France

University Children's Hospital

๐Ÿ‡จ๐Ÿ‡ญ

Zurich, Switzerland

Center for Pediatrics and Adolescent Medicine

๐Ÿ‡ฉ๐Ÿ‡ช

Heidelberg, Germany

City Hospital St. Georg

๐Ÿ‡ฉ๐Ÿ‡ช

Leipzig, Germany

Children's Hospital

๐Ÿ‡ฉ๐Ÿ‡ช

Rostock, Germany

University of Padova

๐Ÿ‡ฎ๐Ÿ‡น

Padova, Italy

Regina Margherita Children's Hospital

๐Ÿ‡ฎ๐Ÿ‡น

Torino, Italy

UKE University Children's Hospital

๐Ÿ‡ฉ๐Ÿ‡ช

Hamburg, Germany

UZ Gent

๐Ÿ‡ง๐Ÿ‡ช

Gent, Belgium

Semmelweis University

๐Ÿ‡ญ๐Ÿ‡บ

Budapest, Hungary

Hannover Medical School

๐Ÿ‡ฉ๐Ÿ‡ช

Hannover, Germany

S. Orsola-Malphighi Hospital

๐Ÿ‡ฎ๐Ÿ‡น

Bologna, Italy

University Hospital Motol

๐Ÿ‡จ๐Ÿ‡ฟ

Prague, Czech Republic

Service de Pรฉdiatrie & Inserm U820

๐Ÿ‡ซ๐Ÿ‡ท

Lyon, France

Charitรฉ Children's Hospital

๐Ÿ‡ฉ๐Ÿ‡ช

Berlin, Germany

KfH Kidney Center for Children

๐Ÿ‡ฉ๐Ÿ‡ช

Marburg, Germany

Fondazione OSP Maggiore Policlinico

๐Ÿ‡ฎ๐Ÿ‡น

Milano, Italy

Bambino Gesu

๐Ÿ‡ฎ๐Ÿ‡น

Rome, Italy

Gazi University Hospital

๐Ÿ‡น๐Ÿ‡ท

Ankara, Turkey

Cerrahpasa Tip Fakultesi

๐Ÿ‡น๐Ÿ‡ท

Istanbul, Turkey

Bakirkoy Children's Hospital

๐Ÿ‡น๐Ÿ‡ท

Istanbul, Turkey

Children's Memorial Health Institute

๐Ÿ‡ต๐Ÿ‡ฑ

Warsaw, Poland

Hospital Sao Joao

๐Ÿ‡ต๐Ÿ‡น

Porto, Portugal

Inselspital

๐Ÿ‡จ๐Ÿ‡ญ

Bern, Switzerland

Diskapi Childrens Hospital

๐Ÿ‡น๐Ÿ‡ท

Ankara, Turkey

Marmara University Medical Faculty

๐Ÿ‡น๐Ÿ‡ท

Istanbul, Turkey

Ege University

๐Ÿ‡น๐Ÿ‡ท

Izmir, Turkey

Istituto Giannina Gaslini

๐Ÿ‡ฎ๐Ÿ‡น

Genova, Italy

Haseki Educational and Research Hospital

๐Ÿ‡น๐Ÿ‡ท

Istanbul, Turkey

Medical University Gdansk

๐Ÿ‡ต๐Ÿ‡ฑ

Gdansk, Poland

Cukurova Universitesi

๐Ÿ‡น๐Ÿ‡ท

Adana, Turkey

Hacettepe Medical Faculty

๐Ÿ‡น๐Ÿ‡ท

Ankara, Turkey

Clinic of Pediatrics

๐Ÿ‡ต๐Ÿ‡ฑ

Szczecin, Poland

Karolinska University Hospital

๐Ÿ‡ธ๐Ÿ‡ช

Stockholm, Sweden

Ankara University of Medicine

๐Ÿ‡น๐Ÿ‡ท

Ankara, Turkey

Baskent University, Faculty of Medicine

๐Ÿ‡น๐Ÿ‡ท

Ankara, Turkey

Sami Ulus Childrens Hospital

๐Ÿ‡น๐Ÿ‡ท

Ankara, Turkey

Goztepe Educational and Research Hospital

๐Ÿ‡น๐Ÿ‡ท

Istanbul, Turkey

Sisli Educational and Research Hospital

๐Ÿ‡น๐Ÿ‡ท

Istanbul, Turkey

Istanbul Medical Faculty

๐Ÿ‡น๐Ÿ‡ท

Istanbul, Turkey

Great Ormond Street Hospital

๐Ÿ‡ฌ๐Ÿ‡ง

London, United Kingdom

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