About this trial
Accurate measures of kidney function is important for precision dosing of many medications. The current methods of determining kidney function largely hinge on the use of equations that use common laboratory values such as serum creatinine \& static variables like age \& weight. These are helpful for trending over time, but often are inaccurate during times of medical illness. Other more accurate methods of measuring kidney function include urine collection, although this is not commonly used because of various reasons that make the collection inconvenient or unreliable. The new transdermal glomerular filtration (tGFR) device permits accurate, real-time evaluation of kidney function. This novel method has not been rigorously compared with urine collection \& other methods of determining kidney function in hospitalized patients. The goal of the study is to compare tGFR with other accepted methods of determining kidney function.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
18-65 years old
critically ill or acutely ill hospitalized patients admitted to the intensive care unit
Stable/normal renal function
Disqualifiers
Prisoners
Pregnant women
Laboratory evidence of unstable kidney function (KDIGO AKI stage 1-3--This includes subjects with Scr > 1.5x baseline)
Trial design
Single group
Treatments tested in this trial
Relmapirazin
DrugIV push of relmapirazin (Lumitrace) prior to use of the tGFR device
Iohexol
DrugSmall IV push bolus of iohexol as a probe for renal function will be administered prior to use of the tGFR device.
Medibeacon tGFR monitor
DeviceThe tGFR monitor will be applied to the patient after relmapirazin bolus for measurement of GFR.
Urine creatinine clearance collection
Diagnostic test8-hour urine creatinine clearance collection will be performed during the study period to compare to tGFR \& other renal function measures.
Treatment groups
Trial outcomes
Primary outcomes
Transdermal Glomerular Filtration Rate (tGFR) Monitoring Accuracy
Accuracy of transdermal glomerular filtration rate (GFR) monitoring compared with measured urine creatinine clearance.
Secondary outcomes
Relmapirazin Elimination Half-Life
Elimination half-life of Relmapirazin calculated from serial serum concentration measurements obtained over 12 hours following intravenous administration.
Iohexol Elimination Half-Life
Elimination half-life of Iohexol calculated from serial serum concentration measurements obtained over 12 hours following intravenous administration.
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
Aaron Cook
Lead sponsor
University of Kentucky
Sponsor institution