Cholate Clearance in Fontans

Fontan Procedure Clinical Trial

Official title:

Development of a Reliable Means for Functional Assessment of Liver Performance After the Fontan Operation: Dual Cholate Clearance Assay

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03726229
• Other study ID #: 829578
• Status: Completed
• Start date: May 1, 2019
• Est. completion date: May 25, 2022

Study information

• Verified date: June 2022
• Source: University of Pennsylvania
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

HepQuant is an assay to measure liver function in other forms of liver disease such as hepatitis C. It measures the ability of the liver to process an naturally occurring substance called cholate and has been shown to predict clinical outcomes in some patient populations. The Fontan survivor is a patient who has undergone surgery or a series of surgeries that result in a functional single ventricle. The liver is particularly vulnerable to disease including congestion, fibrosis, and even cirrhosis. Currently liver function in the Fontan is not well-characterized and the HepQuant assay could help answer this question.

Description:

A novel test called HepQuant® is an assay that has been used to measure liver function in other types of liver disease. In these populations, it is hoped that the assay may show more subtle or sub-clinical liver abnormalities that blood tests alone cannot detect. HepQuant® is a test that examines the ability of the liver to process a substance called cholate, which is a naturally occurring substance in the body. Cholate gets to the liver 2 ways: through the gut (by mouth) or through the blood (IV or intravenous). The test involves administering oral and IV cholate which is labeled. This label is NOT radioactive, but can act as an indicator/marker for evaluation purposes. The purpose of this study is to develop a reliable means of measuring liver function in the Fontan survivor by examining cholate clearance. The investigators aim to 1) explore any association between level of cholate clearance and measurement of heart and liver function and 2) determine whether cholate clearance can predict clinical outcomes such as heart failure, ascites (development of fluid in the abdomen which can result from heart failure or liver failure), and need for heart transplant.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 50
• Est. completion date: May 25, 2022
• Est. primary completion date: May 25, 2022
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• s/p Fontan operation
• cardiac catheterization or cardiac MRI within 1 year of enrollment

Exclusion Criteria:

• pregnant or breastfeeding
• unable to comprehend and/or give informed consent
• sensitivity to human serum albumin, or its preparations

Related Conditions & MeSH terms

• Fontan Procedure

Intervention

Device:
• Cholate assay
Labeled oral and IV cholate will be administered once to the Fontan cohort and blood specimens will be collected at baseline and timepoints thereafter.

Locations

Country	Name	City	State
United States	Hospital of the University of Pennsylvania	Philadelphia	Pennsylvania

Sponsors (1)

Lead Sponsor	Collaborator
University of Pennsylvania

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Hepatic cholate clearance	D4-cholate and 13C-cholate clearance	Through study completion, an average of 1 year
Secondary	Incidence of adverse clinical outcomes	combined outcome of occurrence of any of the following: heart failure admission, clinically significant ascites, protein losing enteropathy, referral for cardiac transplantation, death	5 years after cholate assay