Clinical Validation of the RENISCHEM L-FABP POC Assay

NCT ID: NCT04864847

Last Updated: 2025-07-28

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

450 participants

Study Classification

OBSERVATIONAL

Study Start Date

2021-10-01

Study Completion Date

2025-12-31

Brief Summary

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This study will involve measurement of levels of a novel urinary biomarker of renal ischemia, L-FABP. The purpose of the study is to perform a clinical validation of the ability of L-FABP measurements in urine using the RENISCHEM L-FABP POC Test to predict the development of AKI within 2 days following cardiac and vascular catheterization procedures involving exposure to radiocontrast media.

Detailed Description

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This study will validate the ability of the RENISCHEM L-FABP POC test to predict AKI risk in patients undergoing cardiac catheterization and receiving iodinated contrast medium. Contrast medium is known to be both vasoconstrictive and chemotoxic, which can lead to renal ischemia and, ultimately, AKI. Infusion of radiographic contrast agents, with the associated increases in osmotic load and viscosity, increases hypoxia of the renal medulla and increases renal free radical production through post-ischemic oxidative stress. Earlier identification of contrast medium-induced acute kidney injury (CI-AKI) risk can facilitate improved management of patients to prevent AKI, for example, through selection of alternative imaging methods or contrast agents.

Subjects will be recruited prospectively based on pre-specified enrollment criteria. Blood and urine samples will be collected after enrollment and at several timepoints, and various tests will be performed, including point-of-care L-FABP measurements on urine samples.

Conditions

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Acute Kidney Injury Contrast-induced Nephropathy

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Interventions

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RENISCHEM L-FABP POC Test

Point-of-care test cassette with quantitative reader used for the measurement of L-type fatty acid binding protein (L-FABP) in human urine specimens.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* Patients age 18 or older on the day of the procedure
* Undergoing cardiac or vascular interventional procedures for diagnostic angiography, coronary intervention, TAVR or TAVI, with planned use of radiocontrast media within the next 30 days
* Able to provide informed consent
* Available to participate in follow-up visits
* eGFR \< 45 within the last 90 days, or
* eGFR \< 60 within the last 90 days with at least one (1) of the following risk factors:
* Diabetes
* Heart failure (acute or chronic)
* Anemia (hemoglobin \< 12 g/dL for females and \< 13 g/dL for males) within the last 90 days
* Age \> 75 on the day of the procedure

Exclusion Criteria

* Patient on dialysis or with eGFR \< 15 within the last 30 days
* History of renal transplant
* Current use of immunosuppressive drugs other than prednisone \< 10 mg/day
* Current clinically significant infection (including HIV, hepatitis)
* Presence of KDIGO Stage 1, 2, or 3 AKI within the last 7 days, according to KDIGO criteria
* Known or suspected nephritic or nephrotic syndrome.
* A current post-renal etiology of renal impairment
* Known allergy or hypersensitivity to radiographic contrast dye that cannot be pre-medicated
* Females that are known to be pregnant or nursing
* Participation within the last 30 days in another clinical trial involving use of any drug known to affect AKI and/or device known to affect AKI
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Timewell Medical Co., Ltd.

UNKNOWN

Sponsor Role collaborator

Hikari Dx, Inc.

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Peter McCullough

Role: PRINCIPAL_INVESTIGATOR

Independent

Locations

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Chandler Regional Medical Center

Chandler, Arizona, United States

Site Status RECRUITING

John Muir Health

Concord, California, United States

Site Status RECRUITING

Clearwater Cardiovascular Consultants

Clearwater, Florida, United States

Site Status RECRUITING

University of Florida at Jacksonville

Jacksonville, Florida, United States

Site Status RECRUITING

Sinai Hospital of Baltimore

Baltimore, Maryland, United States

Site Status RECRUITING

University of Oklahoma

Oklahoma City, Oklahoma, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Jeffrey Dahlen, Ph.D.

Role: CONTACT

(619) 742-0203

Facility Contacts

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Jeffrey Dahlen, Ph.D.

Role: primary

Jeffrey DAHLEN, Ph.D.

Role: primary

Jeffrey Dahlen, Ph.D.

Role: primary

Jeffrey Dahlen, Ph.D.

Role: primary

Jeffrey Dahlen, Ph.D.

Role: primary

Jeffrey Dahlen, Ph.D.

Role: primary

References

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Noiri E, Doi K, Negishi K, Tanaka T, Hamasaki Y, Fujita T, Portilla D, Sugaya T. Urinary fatty acid-binding protein 1: an early predictive biomarker of kidney injury. Am J Physiol Renal Physiol. 2009 Apr;296(4):F669-79. doi: 10.1152/ajprenal.90513.2008. Epub 2008 Nov 19.

Reference Type BACKGROUND
PMID: 19019918 (View on PubMed)

Yamamoto T, Noiri E, Ono Y, Doi K, Negishi K, Kamijo A, Kimura K, Fujita T, Kinukawa T, Taniguchi H, Nakamura K, Goto M, Shinozaki N, Ohshima S, Sugaya T. Renal L-type fatty acid--binding protein in acute ischemic injury. J Am Soc Nephrol. 2007 Nov;18(11):2894-902. doi: 10.1681/ASN.2007010097. Epub 2007 Oct 17.

Reference Type BACKGROUND
PMID: 17942962 (View on PubMed)

Fujita D, Takahashi M, Doi K, Abe M, Tazaki J, Kiyosue A, Myojo M, Ando J, Fujita H, Noiri E, Sugaya T, Hirata Y, Komuro I. Response of urinary liver-type fatty acid-binding protein to contrast media administration has a potential to predict one-year renal outcome in patients with ischemic heart disease. Heart Vessels. 2015 May;30(3):296-303. doi: 10.1007/s00380-014-0484-9. Epub 2014 Feb 20.

Reference Type BACKGROUND
PMID: 24554034 (View on PubMed)

Kamijo-Ikemori A, Hashimoto N, Sugaya T, Matsui K, Hisamichi M, Shibagaki Y, Miyake F, Kimura K. Elevation of urinary liver-type fatty acid binding protein after cardiac catheterization related to cardiovascular events. Int J Nephrol Renovasc Dis. 2015 Aug 18;8:91-9. doi: 10.2147/IJNRD.S88467. eCollection 2015.

Reference Type BACKGROUND
PMID: 26316797 (View on PubMed)

Manabe K, Kamihata H, Motohiro M, Senoo T, Yoshida S, Iwasaka T. Urinary liver-type fatty acid-binding protein level as a predictive biomarker of contrast-induced acute kidney injury. Eur J Clin Invest. 2012 May;42(5):557-63. doi: 10.1111/j.1365-2362.2011.02620.x. Epub 2011 Nov 10.

Reference Type BACKGROUND
PMID: 22070248 (View on PubMed)

Nakamura T, Sugaya T, Node K, Ueda Y, Koide H. Urinary excretion of liver-type fatty acid-binding protein in contrast medium-induced nephropathy. Am J Kidney Dis. 2006 Mar;47(3):439-44. doi: 10.1053/j.ajkd.2005.11.006.

Reference Type BACKGROUND
PMID: 16490622 (View on PubMed)

Other Identifiers

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TWM-001

Identifier Type: -

Identifier Source: org_study_id

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