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Clinical Trial Details — Status: Withdrawn

Administrative data

NCT number NCT04597892
Other study ID # NL.MUMC.AMACINGrp.3
Secondary ID
Status Withdrawn
Phase
First received
Last updated
Start date May 1, 2097
Est. completion date March 1, 2099

Study information

Verified date October 2023
Source Maastricht University Medical Center
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

Point-of-care (POC) creatinine devices allow rapid measurement of creatinine levels and calculation of estimated glomerular filtration rate (eGFR) which give an indication of renal function. The focus of this assessment is to validate POC measurements to assess kidney function before intravascular iodinated contrast administration in patients with severe renal insufficiency (eGFR < 30 ml/min/1.73m2). It will be evaluated whether discrepancies between POC measurement values and values obtained from standard laboratory assays lie within an acceptable range using Bland-Altman analysis.


Description:

Measurement of creatinine to determine eGFR before intravascular iodinated contrast administration is indicated to assess whether a patient is at risk of contrast-induced acute kidney injury (AKI). For patients with reduced eGFR intravenous hydration can be offered before the scan to reduce the risk of AKI. If no recent eGFR measurement is available, contrast procedures could be cancelled and rescheduled while a creatinine test is processed in the laboratory. Using POC creatinine tests before contrast-enhanced procedures could minimise the risk of kidney injury, and may reduce the number of cancelled scans. The question is whether POC creatinine assay is accurate and beneficial in this setting compared to the standard laboratory assay. The i-STAT Alinity POC creatinine device is one of three devices which calculate estimated glomerular filtration rate (eGFR) recommended in clinical practice guidelines to assess kidney function to guide decisions on the use of intravascular iodinated contrast in adults. In the study, i-STAT Alinity POC measurements of creatinine will be performed using already available blood samples of patients with estimated eGFR<30 ml/min/1.73m2 and mean difference between eGFR and serum creatinine measurements using POC and standard laboratory assays will be calculated. Results will be used to evaluate the agreement between of POC and laboratory assays on risk stratification (i.e., the percentage of patients with eGFR<30 according to both laboratory and POC assays) and post-contrast acute kidney injury (AKI; i.e., the percentage of patients with post-contrast acute kidney injury according to both laboratory and POC assays). Finally, the number of elective procedures which are delayed (including delayed planning) or cancelled because a serum creatinine assay is required and unavailable will be prospectively evaluated for Maastricht UMC+ in this study.


Recruitment information / eligibility

Status Withdrawn
Enrollment 0
Est. completion date March 1, 2099
Est. primary completion date March 1, 2099
Accepts healthy volunteers No
Gender All
Age group N/A and older
Eligibility Inclusion Criteria: - Standard care venous blood samples for which eGFR measurement at Maastricht UMC+ Central Diagnostic Laboratory results in a value below 30 ml/min/1.73m2 (including all standard care venous blood samples from patients with GFR <30 ml/min/1.73m2 referred for an elective procedure with intravascular iodinated contrast at Maastricht UMC+) Exclusion Criteria: -

Study Design


Intervention

Diagnostic Test:
serum creatinine assay
point-of-care and standard laboratory assay of serum creatinine

Locations

Country Name City State
Netherlands Maastricht UMC Maastricht

Sponsors (1)

Lead Sponsor Collaborator
Maastricht University Medical Center

Country where clinical trial is conducted

Netherlands, 

Outcome

Type Measure Description Time frame Safety issue
Other Delayed/cancelled procedures. The percentage of elective procedures which are delayed (including delayed planning) or cancelled because a serum creatinine assay is required and unavailable will be prospectively evaluated for Maastricht UMC+ in this study. 6 months
Primary Mean difference between eGFR and serum creatinine measurements using POC and standard laboratory assays with 95% limits of agreement (based on the standard deviation of the individual between-method differences). 6 months
Secondary Agreement risk stratification. percentage of patients classified as eGFR <30 by both POC and standard laboratory assays 6 months
Secondary Agreement post-contrast acute kidney injury. percentage of patients with post-contrast AKI according to both POC and standard laboratory assays 6 months
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