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A Methodological Study to Learn More About Kidney Function in Healthy People and in People With Reduced Kidney Function

NCT07368712 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 50

Last updated 2026-05-18

No results posted yet for this study

Summary

The main purpose of this study is to investigate how reliable a test assessing the renal functional reserve (RFR) and the maximum glomerular filtration rate (maxGFR) are. MaxGFR and RFR assessments are repeated twice at 1-month intervals. If precise, this test may improve the measure of kidney function and be useful in future studies for people with chronic kidney problems.

To do this, the researchers will collect and analyze information about kidney function from up to 50 adults, including healthy people and people with stable kidney problems. Each person will come to the study center for a screening visit and then three study days, each about a month apart. On each study day, participants will have blood and urine samples taken before and after drinking a protein shake. The tests will measure things like creatinine, cystatin C, and other markers in the blood and urine to see how the kidneys are working. The study will also record basic health information, weight, blood pressure, and any medicines being taken.

The study will last about 2 to 2.5 months for each participant.

Conditions

  • Acute Kidney Injury, Renal Insufficiency

Interventions

OTHER

No investigational study intervention

The study does not involve the administration of any study intervention, investigational medicinal product, or device. Participants will undergo blood collection and urine sampling both before and after consuming a high-protein meal.

Sponsors & Collaborators

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
75 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-01-06
Primary Completion
2027-02-19
Completion
2027-02-19

Countries

  • Germany

Study Locations

More Related Trials

Entities

Companies

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 NCT07368712 on ClinicalTrials.gov