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Pyrophosphate and Arterial Calcification in Chronic Kidney Disease

NCT04950439 · Status: ACTIVE_NOT_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 242

Last updated 2026-05-20

No results posted yet for this study

Summary

Arterial calcifications start at early stages of chronic kidney disease (CKD) and are associated to cardiovascular mortality. Pyrophosphate (PPi) is an endogenous compound, which stops the mineralization process in bones and is expected to act at ectopic sites. In uremic rats, low PPi plasma levels are associated with high calcium content in the aorta and peritoneal administration of PPi blocks this process. People on maintenance dialysis or kidney transplant recipients have low plasma levels of PPi and show high scores of arterial calcification. The purpose is to determine the role of low PPi in the development of arterial calcifications in patients with CKD stage 3 or 4. To that aim, 252 patients with eGFR between 59 et 20 ml/min/1,73 m2 will be recruited and will be examined at baseline and three years later.

Conditions

  • Chronic Kidney Diseases

Interventions

OTHER

Collect blood sample

A blood sample dedicated to the study and necessary for routine care is taken. The pulse wave velocity and systolic pressure index are measured. A myocardial CT scan coupled with a computed tomography is performed. The patient collects stools at his home, simply conditions them and sends them by mail to the centre, which stores them.

Sponsors & Collaborators

  • Centre Hospitalier Universitaire de Nice

    lead OTHER

Principal Investigators

  • Favre Guillaume, PhD · CHU de Nice, Service de Néphrologie

Study Design

Allocation
NA
Purpose
OTHER
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2022-03-14
Primary Completion
2028-03-14
Completion
2029-03-14

Countries

  • France

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04950439 on ClinicalTrials.gov