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Cardiox Liver Function Test Pivotal Trial (LFT-0002)

Primary Purpose

Hepatic Failure, Liver Failure

Status
Withdrawn
Phase
Phase 3
Locations
United States
Study Type
Interventional
Intervention
0.1 mg/kg ICG Dose
0.5 mg/kg ICG dose
Sponsored by
Cardiox Corporation
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional diagnostic trial for Hepatic Failure focused on measuring hepatic, liver, LFT, hepatic assessment, ICG dye, indocyanine green dye, Diagnostic Green, Pulsion, Akorn, Cardiox, anazen, essence, dye detection monitor, Earpads, flow sensor, scaphoid fossa, liver disease, acute hepatic failure, AHF, NASH, hepatitis C, cirrhosis, MELD, pulse dye densitometry, liver transplant, fluorescence, near infra-red, serial blood draws, PDR, plasma disappearance rate, R15, k coefficient, transcutaneously, liver donor, liver dysfunction, Child-Pugh, AST, ALT, GGT, alk phos, prothrombin time, albumin, serum ICG, liver function tests

Eligibility Criteria

18 Years - 75 Years (Adult, Older Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  1. Male or female between 18 to 75 years of age inclusive, at the time of Screening.
  2. Voluntarily provide written informed consent.
  3. Female patients are eligible only if all of the following apply:

    • Not pregnant (negative urine pregnancy test at the Screening visit);
    • Not lactating;
    • Not planning to become pregnant within the duration of the study;
    • Surgically sterile, or at least 2 years postmenopausal, or is practicing an acceptable form of birth control (defined as the use of an intrauterine device, a barrier method with spermicide, condoms, subdermal implant, oral contraceptives, abstinence, or sterilization of monogamous partner) for greater than 60 days prior to Screening and commits to the use of the acceptable form of birth control for the duration of the study.
  4. If a healthy volunteer; is considered to be in generally good health, in the opinion of the Investigator, at the Screening visit based upon the results of their medical and surgical history, vital signs, physical examination, and clinical laboratory tests.
  5. Prior to receiving any ICG injections the subject agrees to be fasting for at least eight (8) hours.
  6. If a subject with liver cirrhosis; is considered to be in general satisfactory health, in the opinion of the Investigator (other than their hepatic impairment) at the Screening visit based upon the results of their medical and surgical history, vital signs, physical examination, and non-hepatic clinical laboratory tests.
  7. Liver cirrhosis subjects must have a clinical diagnosis of hepatic impairment based on documented evidence of hepatic cirrhosis by medical history, or previous liver biopsy, or hepatic ultrasound; which conforms to the criteria for class A or B or C of the Childs-Pugh classification (Appendix B); and are expected to require an ICG liver function study, such as for liver transplantation, liver resection, liver cirrhosis prognosis evaluation, functional liver cell mass and/or general liver dysfunction evaluations.
  8. On stable drug therapy that is not expected to change (i.e. in dose, frequency, additions or deletions of agents) for at least 2 weeks before ICG dye injection.
  9. Must, in the Investigator's opinion, be able to comply with study procedures.
  10. If the Subject is being enrolled in the fifth group they have a diagnosis of acute liver failure (ALF) as defined by the Principal Investigator.

Exclusion Criteria:

  1. Have any clinically significant condition or unstable current illness that would, in the opinion of the Investigator, preclude study participation or interfere with the assessment of the procedure;
  2. Known allergy or sensitivity to ICG dye or history of allergy to iodides;
  3. Actively bleeding associated with acute blood volume changes.

Sites / Locations

  • The Ohio State University Wexner Medical Center

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Active Comparator

Arm Label

LFT Dye Detection Monitor

Serial Blood Draws

Arm Description

Outcomes

Primary Outcome Measures

plasma disappearance rate

Secondary Outcome Measures

physical examinations
vital signs
adverse events

Full Information

First Posted
September 15, 2015
Last Updated
January 14, 2016
Sponsor
Cardiox Corporation
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1. Study Identification

Unique Protocol Identification Number
NCT02552901
Brief Title
Cardiox Liver Function Test Pivotal Trial
Acronym
LFT-0002
Official Title
A Pivotal, Within Subject, Comparison of the LFT™ Dye Monitor System to the Indocyanine Green Dye (ICG) Serial Blood Plasma Disappearance Rate in Patients With Impaired and Non-Impaired Hepatic Function
Study Type
Interventional

2. Study Status

Record Verification Date
January 2016
Overall Recruitment Status
Withdrawn
Study Start Date
November 2015 (undefined)
Primary Completion Date
May 2016 (Anticipated)
Study Completion Date
May 2016 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Cardiox Corporation

4. Oversight

Data Monitoring Committee
No

5. Study Description

Brief Summary
Performance evaluation of LFT Dye Monitor System using ICG - plasma disappearance rate value (PDR) to assess liver function in normal patients as well as in patients with mild to severe hepatic impairment compared to manual Serum ICG PDR.
Detailed Description
Indocyanine green (ICG) is a water-soluble, non-toxic tricarbocyanine dye, extracted principally by hepatic parenchymal cells and excreted almost entirely into the bile without enterohepatic circulation. Clinically, its elimination rate is used primarily to measure hepatic function and liver blood flow. ICG studies are also used in ophthalmic angiography and the determination of cardiac output. Beginning about 1959, the first human clinical studies were reported wherein an indocyanine green (ICG) bolus was injected into a vein, and then blood samples were withdrawn over a period of time and analyzed for ICG concentrations. This method is referred to hereinafter as the serial blood sampling method. These blood samples are sent to a clinical laboratory for a multi-step process of centrifuging, separation and spectrophotometric measurements of ICG levels. The laboratory-based measured levels of residual ICG levels are then used to determine the ICG clearance rate and R15 value or residual amount of dye remaining after 15 minutes, expressed as a percentage of the initial concentration. As an alternative to the time- and labor-consuming serial blood sampling method, a non-invasive technique was first reported nearly 20 years ago. In the first published clinical study, Ishigami reported the use of a pulse dye densitometry (PDD) method to transcutaneously detect the rate of clearance of ICG from the bloodstream to be referred to hereinafter as dynamic liver function testing. PDD expresses ICG elimination in terms of the indocyanine green plasma disappearance rate because only relative ICG concentration changes are assessed. The results of this noninvasive method have been shown to correlate with those obtained by the invasive method used in critically ill patients (hemodynamically unstable and stable), and in patients after liver surgery. ICG elimination rate after liver transplantation measured by either invasive or noninvasive ICG methods is widely used to evaluate graft function. Studies have shown that ICG elimination, measured on the day of transplantation, reflects graft function and can be used to predict graft viability and the expected survival of the patient. Sequential measurements of ICG elimination between days 0 and 28 of transplantation, have been shown to predict clinical outcome in the early postoperative period after living donor transplantation. All of the studies have shown that the ICG elimination rate is an accurate test for evaluating liver dysfunction, but lacks the ability to differentiate the underlying causes of the hepatic dysfunction. Unlike all currently existing PDD methods for performing liver function testing, LFT Dye Monitor System employs a more sensitive method for the transcutaneous measurement of ICG concentration level in the blood using NIR fluorescence, with a sensor that is attached loosely to the scaphoid fossa of the ear. Thus, the chemical properties of ICG dye to fluoresce when properly excited are used in the LFT system to enable much lower concentrations of ICG to be detectable.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Hepatic Failure, Liver Failure
Keywords
hepatic, liver, LFT, hepatic assessment, ICG dye, indocyanine green dye, Diagnostic Green, Pulsion, Akorn, Cardiox, anazen, essence, dye detection monitor, Earpads, flow sensor, scaphoid fossa, liver disease, acute hepatic failure, AHF, NASH, hepatitis C, cirrhosis, MELD, pulse dye densitometry, liver transplant, fluorescence, near infra-red, serial blood draws, PDR, plasma disappearance rate, R15, k coefficient, transcutaneously, liver donor, liver dysfunction, Child-Pugh, AST, ALT, GGT, alk phos, prothrombin time, albumin, serum ICG, liver function tests

7. Study Design

Primary Purpose
Diagnostic
Study Phase
Phase 3
Interventional Study Model
Single Group Assignment
Masking
None (Open Label)
Allocation
Non-Randomized
Enrollment
0 (Actual)

8. Arms, Groups, and Interventions

Arm Title
LFT Dye Detection Monitor
Arm Type
Experimental
Arm Title
Serial Blood Draws
Arm Type
Active Comparator
Intervention Type
Drug
Intervention Name(s)
0.1 mg/kg ICG Dose
Other Intervention Name(s)
LFT Dose
Intervention Description
least efficacious dose
Intervention Type
Drug
Intervention Name(s)
0.5 mg/kg ICG dose
Intervention Description
per package insert
Primary Outcome Measure Information:
Title
plasma disappearance rate
Time Frame
Study Day 1
Secondary Outcome Measure Information:
Title
physical examinations
Time Frame
Study Day 1
Title
vital signs
Time Frame
Study Day 1
Title
adverse events
Time Frame
Study Day 1

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
75 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: Male or female between 18 to 75 years of age inclusive, at the time of Screening. Voluntarily provide written informed consent. Female patients are eligible only if all of the following apply: Not pregnant (negative urine pregnancy test at the Screening visit); Not lactating; Not planning to become pregnant within the duration of the study; Surgically sterile, or at least 2 years postmenopausal, or is practicing an acceptable form of birth control (defined as the use of an intrauterine device, a barrier method with spermicide, condoms, subdermal implant, oral contraceptives, abstinence, or sterilization of monogamous partner) for greater than 60 days prior to Screening and commits to the use of the acceptable form of birth control for the duration of the study. If a healthy volunteer; is considered to be in generally good health, in the opinion of the Investigator, at the Screening visit based upon the results of their medical and surgical history, vital signs, physical examination, and clinical laboratory tests. Prior to receiving any ICG injections the subject agrees to be fasting for at least eight (8) hours. If a subject with liver cirrhosis; is considered to be in general satisfactory health, in the opinion of the Investigator (other than their hepatic impairment) at the Screening visit based upon the results of their medical and surgical history, vital signs, physical examination, and non-hepatic clinical laboratory tests. Liver cirrhosis subjects must have a clinical diagnosis of hepatic impairment based on documented evidence of hepatic cirrhosis by medical history, or previous liver biopsy, or hepatic ultrasound; which conforms to the criteria for class A or B or C of the Childs-Pugh classification (Appendix B); and are expected to require an ICG liver function study, such as for liver transplantation, liver resection, liver cirrhosis prognosis evaluation, functional liver cell mass and/or general liver dysfunction evaluations. On stable drug therapy that is not expected to change (i.e. in dose, frequency, additions or deletions of agents) for at least 2 weeks before ICG dye injection. Must, in the Investigator's opinion, be able to comply with study procedures. If the Subject is being enrolled in the fifth group they have a diagnosis of acute liver failure (ALF) as defined by the Principal Investigator. Exclusion Criteria: Have any clinically significant condition or unstable current illness that would, in the opinion of the Investigator, preclude study participation or interfere with the assessment of the procedure; Known allergy or sensitivity to ICG dye or history of allergy to iodides; Actively bleeding associated with acute blood volume changes.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Michael Jopling, MD
Organizational Affiliation
Medical Director, Cardiox Corporation
Official's Role
Study Director
Facility Information:
Facility Name
The Ohio State University Wexner Medical Center
City
Columbus
State/Province
Ohio
ZIP/Postal Code
43210
Country
United States

12. IPD Sharing Statement

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Cardiox Liver Function Test Pivotal Trial

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