Viewing Study NCT05648435


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Study NCT ID: NCT05648435
Status: COMPLETED
Last Update Posted: 2023-04-12
First Post: 2022-12-05
Is NOT Gene Therapy: True
Has Adverse Events: False

Brief Title: Lithium Clearance in Patients With High Risk of Acute Kidney Injury
Sponsor: University Hospital of North Norway
Organization:

Study Overview

Official Title: Proximal Tubule Function in Septic Patients as Measured by Endogenous Lithium Clearance
Status: COMPLETED
Status Verified Date: 2022-12
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: None
Brief Summary: Renal lithium clearance is hypothesized to be a useful indicator of renal tubular function.

In this study lithium clearance will be monitored in patients with sepsis associated acute kidney injury and in healthy controls.
Detailed Description: Lithium is almost completely reabsorbed in the proximal tubule in parallel with sodium and water. What is not reabsorbed here is assumed to be fully excreted in urine, giving a reasonably accurate measurement of sodium reabsorption in the proximal tubule. Endogenous lithium clearance will be measured by inductively coupled plasma mass spectrometry (ICP-MS). The Gomez equations will be applied to calculate efferent arteriolar resistance, afferent arteriolar resistance, glomerular hydrostatic pressure, glomerular filtration pressure, and glomerular oncotic pressure. N-acetyl-β-D glucosaminidase (NAG) and NGAL, markers of tubular injury, will be measured by a spectrophotometric method using a commercially available kit. Routine blood and urine analyses will be performed at the Diagnostic Clinic Laboratory, University Hospital of North Norway, Tromsø.

Study Oversight

Has Oversight DMC: False
Is a FDA Regulated Drug?: False
Is a FDA Regulated Device?: False
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: None
Is an FDA AA801 Violation?: