Liver Function Measured by HepQuant-SHUNT in the Prediction of Outcomes in Patients With Heart Disease

August 20, 2018 updated by: Daniel Ganger, Northwestern University

Liver Function Measured by HepQuant-SHUNT in the Prediction of Outcomes in Patients With Passive Hepatic Congestion Secondary to Congenital Heart Disease (CHD) or Cardiomyopathy

Background: It is still difficult to predict the outcome in patients requiring Fontan Revisions and in those who have evidence of congestive hepatopathy and probable cirrhosis requiring major cardiac surgery including heart transplant. Over the years, many prognostic indices have been derived from laboratory results of blood tests, clinical and physiological variables (or some combination thereof), from liver imaging to liver histology, which has issues of sampling error, medical risks and technical difficulty. None of these have proved entirely satisfactory. Predicting morbidity or survival is particularly important when deciding about Fontan revisions versus the need for heart transplantation. What is needed here is a truly reliable test of liver function that can help predict outcome, on the basis of a single measurement within few days of a planned revision. For this purpose, it is desirable that the chosen tests of liver performance be safe, non-invasive, easy to perform, have a rapid turnaround for results, and be readily repeatable.

Tests of hepatic elimination of various exogenous substances have been described, such as galactose elimination capacity (GEC), indocyanine green (ICG) clearance, lidocaine metabolism to monoethylglycinexylidide (MEGX), and other tests that rely on liver metabolic capacity. None of these metabolic or clearance tests achieved widespread acceptance or use, mostly because their performance and analyses were cumbersome.

HepQuant,LLC has developed a platform of tests of liver function which include Systemic Hepatic Filtration Rate (HFR), Portal HFR, SHUNT, and Disease Severity Index (DSI)1,2. HepQuant tests specifically target the hepatic uptake of cholate and use a single noninvasive test of 90 minutes duration to quantify the systemic circulation, portal circulation, and portal-systemic shunt and to derive a DSI in intact human subjects. HepQuant tests can assess all stages and etiologies of liver disease. In chronic HCV patients HepQuant testing can predict which patients will respond to antiviral therapy and can measure the improvement in hepatic function that occurs after successful antiviral therapy. Patients who did not respond were followed for an average of 5 years and up to 8 years, and baseline HepQuant testing could predict clinical outcomes (CTP progression, variceal bleeding, encephalopathy, ascites, liver-related death) with 87% sensitivity and 71% specificity.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Hypothesis The results of HepQuant in patients with CHD will correlate with outcomes of cardiac surgery (namely morbidity as defined by complications such as ischemic hepatitis, survival, need for heart transplantation, improvement of liver function post revision), and thus can be used for prognosis in this condition, either alone or in conjunction with other clinical, physiological, and laboratory prognostic scores, thereby giving clinical guidance concerning the need for heart transplantation and simultaneous liver transplantation..

Primary Aim To assess the relationship between HepQuant testing results and clinical outcomes in patients with liver disease secondary to congenital heart disease (CHD) undergoing Fontan revisions.

To assess the clinical outcomes of patients with liver disease secondary to acquired cardiomyopathy or valvular disease that will undergo extensive heart surgery or heart transplantation.

Secondary Aim To assess whether HepQuant testing predicts clinical outcome in patients with Liver Disease and CHD when used in conjunction with other diagnostic tests, such as MELD, Child-Turcotte-Pugh (CTP), liver stiffness measurement (US with ARFI), and Fibrotest (Fibrosure).

Study population Male and female Subjects (age 18 to 70 years) with liver disease secondary to congenital heart disease or cardiomyopathy.

Study Type

Interventional

Enrollment (Actual)

14

Phase

  • Early Phase 1

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Written informed consent obtained prior to any study-specific assessments.
  2. Liver disease secondary to congenital heart disease or cardiomyopathy.
  3. Male and female subjects (age 18 to 70 years of age).

Exclusion Criteria:

  1. Male and female subjects < 18 or > 70 years of age.
  2. Female subjects of child-bearing potential that are pregnant or breast feeding.
  3. Subjects on both beta blockers and ACE inhibitors.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: Hep quant cholate testing
diagnostic measure of liver function
Drug: Cholate testing
The patient receives simultaneously an oral dose of d4-cholate and an IV dose of 13C-cholate, which are stable isotopes; there is no radioactivity or radiation exposure.
Other Names:
  • 13C-cholate
  • d4-cholate

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Liver Function
Time Frame: 6 months
Liver function as measured by HepQuant testing which include Systemic Hepatic Filtration Rate (HFR), Portal HFR, SHUNT.
6 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Northwestern University

Collaborators

University of Colorado, Denver

Investigators

  • Principal Investigator: Daniel Ganger, MD, Northwestern University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 1, 2015

Primary Completion (Actual)

May 1, 2018

Study Completion (Actual)

May 1, 2018

Study Registration Dates

First Submitted

June 24, 2015

First Submitted That Met QC Criteria

July 21, 2015

First Posted (Estimate)

July 23, 2015

Study Record Updates

Last Update Posted (Actual)

August 22, 2018

Last Update Submitted That Met QC Criteria

August 20, 2018

Last Verified

August 1, 2018

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • STU00100794

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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