NCT03729557

Brief Summary

Chronic kidney disease (CKD) is highly frequent, and patients with advanced CKD are known to have a high risk of developing cardiovascular disease (CVD). However, little is known about the cardiovascular risk in patients with mildly reduced kidney function (reduced glomerular filtration rate, GFR), affecting up to 10% of the general population; and importantly, also affecting living kidney donors. Until recently it has been believed that donating a kidney does not represent any health hazard. However, a recent Norwegian epidemiological study suggested that kidney donors have an increased risk of CVD. The pathogenesis linking reduced kidney function to CVD is not known. Living kidney donors provide a unique model for investigating the mechanisms underlying increased risk of CVD in patients with reduced GFR because living kidney donors are healthy before donation. Thus, the main purpose of the Project is to investigate the mekanismes underlying the development of cardiovascular remodelling induced by a reduction in GFR.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
109

participants targeted

Target at P50-P75 for all trials

Timeline
33mo left

Started Feb 2019

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress73%
Feb 2019Jan 2029

First Submitted

Initial submission to the registry

October 10, 2018

Completed
23 days until next milestone

First Posted

Study publicly available on registry

November 2, 2018

Completed
3 months until next milestone

Study Start

First participant enrolled

February 1, 2019

Completed
9.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2029

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2029

Last Updated

August 22, 2025

Status Verified

August 1, 2025

Enrollment Period

9.9 years

First QC Date

October 10, 2018

Last Update Submit

August 18, 2025

Conditions

Keywords

Kidney donor

Outcome Measures

Primary Outcomes (2)

  • Change in left ventricular mass.

    Cardiac magnetic resonance imaging (CMRI) and echocardiography.

    Before kidney donation (between one month and 1 day before surgery), new investigation 2,5, 5 and 10 years after kidney donation.

  • Change in left ventricular strain.

    CMRI and echocardiography.

    Before kidney donation (between one month and 1 day before surgery), new investigation 2,5, 5 and 10 years after kidney donation.

Secondary Outcomes (4)

  • Change in arterial pulse wave velocity.

    Before kidney donation (between one month and 1 day before surgery), new investigation 2,5, 5 and 10 years after kidney donation.

  • Change in intima and media thickness of aorta.

    Before kidney donation (between one month and 1 day before surgery), new investigation 2,5, 5 and 10 years after kidney donation.

  • Change in the calsium/phosphate homeostasis.

    Before kidney donation (between one month and 1 day before surgery), new investigation 2,5, 5 and 10 years after kidney donation.

  • Change in inflammation-marker.

    Before kidney donation (between one month and 1 day before surgery), new investigation 2,5, 5 and 10 years after kidney donation.

Study Arms (2)

Kidney Donors

Procedure: Nephrectomy

Control group

Interventions

NephrectomyPROCEDURE

Unilateral nephrectomy

Kidney Donors

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The project is a prospective longitudinal parallel group study including persons selected as living kidney donors according to the Norwegian donor criteria and accepted for surgery at Rikshospitalet, Norway. The donors will be compared to a control group consisting of individuals evaluated for donation, but not found eligible and healthy family members related to donors. The control individuals will be age and sex matched to living kidney donors. Control individuals who accept to participate will go through the same test battery (the Norwegian transplantation protocol for living kidney donors) as living kidney donors and must fulfil these criteria before inclusion as controls.

You may not qualify if:

  • Persons who do not meet the Norwegian donor criteria.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Oslo University Hospital

Oslo, Norway

Location

Related Publications (2)

  • Brobak KM, Halvorsen LV, Aass HCD, Soraas CL, Aune A, Olsen E, Bergland OU, Rognstad S, Blom KB, Birkeland JAK, Hoieggen A, Larstorp ACK, Solbu MD. Novel biomarkers in patients with uncontrolled hypertension with and without kidney damage. Blood Press. 2024 Dec;33(1):2323980. doi: 10.1080/08037051.2024.2323980. Epub 2024 Apr 12.

  • Blom KB, Bergo KK, Espe EKS, Rosseland V, Grotta OJ, Mjoen G, Asberg A, Bergan S, Sanner H, Bergersen TK, Bjornerheim R, Skauby M, Seljeflot I, Waldum-Grevbo B, Dahle DO, Sjaastad I, Birkeland JA. Cardiovascular rEmodelling in living kidNey donorS with reduced glomerular filtration rate: rationale and design of the CENS study. Blood Press. 2020 Apr;29(2):123-134. doi: 10.1080/08037051.2019.1684817. Epub 2019 Nov 13.

MeSH Terms

Conditions

Cardiovascular Diseases

Interventions

Nephrectomy

Intervention Hierarchy (Ancestors)

Urologic Surgical ProceduresUrogenital Surgical ProceduresSurgical Procedures, Operative

Study Officials

  • Jon Arne Birkeland, MD, PhD

    Oslo University Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal investigator, Medical doctor, PhD

Study Record Dates

First Submitted

October 10, 2018

First Posted

November 2, 2018

Study Start

February 1, 2019

Primary Completion (Estimated)

January 1, 2029

Study Completion (Estimated)

January 1, 2029

Last Updated

August 22, 2025

Record last verified: 2025-08

Locations