Intra-Individual Reproducibility of the Non-Invasive Assessment of the Portal Circulation

This study is currently recruiting participants.
Verified February 2014 by HepQuant, LLC
Sponsor:
Information provided by (Responsible Party):
HepQuant, LLC
ClinicalTrials.gov Identifier:
NCT01579162
First received: February 9, 2012
Last updated: February 14, 2014
Last verified: February 2014

February 9, 2012
February 14, 2014
January 2012
July 2014   (final data collection date for primary outcome measure)
Cholate Shunt Test [ Time Frame: 9 months ] [ Designated as safety issue: No ]
The Cholate Shunt Test result is defined as the ratio of the IV Cholate Clearance Test result to the Oral Cholate Clearance Test result and is expressed as a percentage. The IV Cholate Clearance Test result = (dose cholate-24-13C/AUC cholate-24-13C)/subject weight and is expressed as mL/min/kg. The Oral Cholate Clearance Test result = (dose cholate-2,2,4,4-d4/AUC cholate-2,2,4,4-d4)/subject weight and is expressed as mL/min/kg. The AUC cholate-24-13C and AUC cholate-2,2,4,4-d4 are calculated from LCMS analysis of serum samples collected at 0, 5, 20, 45, 60, 90 minutes post-dose.
Same as current
Complete list of historical versions of study NCT01579162 on ClinicalTrials.gov Archive Site
  • Intra-individual Reproducibility of the Cholate Tests [ Time Frame: 9 months ] [ Designated as safety issue: No ]
    The intra-individual reproducibility of each cholate test, the IV Cholate Clearance Test, the Oral Cholate Clearance Test, and the Cholate Shunt Test, will be defined by its average Coefficient of Variation (CV) and its Intra-Class Correlation (ICC). Each subject will be tested at baseline and then twice more on separate days within the span of one month. The CV of each subject's three replicate tests will be used to calculate the average CV for each type of test. All test results for each type of test will be used to calculate its ICC.
  • Correlation of Cholate Tests with Histological Fibrosis Stage [ Time Frame: 9 months ] [ Designated as safety issue: No ]
    The correlation of each of the cholate test results with the histological fibrosis stage in chronic HCV patients will be determined by Pearson correlations and expressed by p values and r2 values. The correlation of the cholate test results with the histological fibrosis stage in NASH patients will be determined in the same manner.
Same as current
Not Provided
Not Provided
 
Intra-Individual Reproducibility of the Non-Invasive Assessment of the Portal Circulation
Intra-Individual Reproducibility of the Non-Invasive Assessment of the Portal Circulation

HepQuant tests are new liver tests that are being developed to accurately measure liver function with sensitivity and specificity while being safe and non-invasive. The primary goal of this study is to define the intra-individual reproducibility of the HepQuant tests, that is, to see if a person is given the tests several times that the test results are essentially the same each time. Subjects for this study will include healthy controls and patients with chronic liver diseases. The chronic liver diseases will include hepatitis C virus (HCV) infection and a serious form of fatty liver disease, known as non-alcoholic steatohepatitis (NASH). The HCV and NASH patients will include men and women, and those with early stage and late stage liver disease as defined by the amount of fibrosis observed in their liver biopsies. Once a subject has been enrolled in the study they will be given the HepQuant tests on three separate days within the span of one month. The hypothesis of this study is that HepQuant tests will reproducibly report liver function in healthy controls and patients with all stages of chronic HCV and NASH liver disease and that liver function will decrease as the amount of liver fibrosis increases in the chronic liver disease patients.

Not Provided
Interventional
Not Provided
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Diagnostic
  • Hepatitis C, Chronic
  • Non-Alcoholic Fatty Liver Disease
Device: Cholate-24-13C (IND 65121) & Cholate-2,2,4,4-d4 (IND 65123)

The FDA has indicated that liver function diagnostic testing with stable isotope labeled cholates would be considered a drug/device combination product. The drugs administered at each test visit will be:

20 mg Cholate-24-13C, IV (in the vein), dissolved in NaHCO3 and mixed with albumin.

40 mg Cholate-2,2,4,4-d4, oral, dissolved in NaHCO3 and mixed with juice.

The 3 test visits will be on separate days within a span of 30 days

Other Names:
  • Cholic acid-24-13C
  • Cholic acid-2,2,4,4-d4
  • Experimental: Healthy Controls
    Healthy controls will be recruited to have approximately equal numbers of men and women. Controls will be of healthy weight as defined by a BMI 18-25 and without liver disease or risk factors for liver disease.
    Intervention: Device: Cholate-24-13C (IND 65121) & Cholate-2,2,4,4-d4 (IND 65123)
  • Experimental: chronic HCV patients with F0-F2 fibrosis
    Intervention: Device: Cholate-24-13C (IND 65121) & Cholate-2,2,4,4-d4 (IND 65123)
  • Experimental: chronic HCV patients with F3-F4 fibrosis
    Intervention: Device: Cholate-24-13C (IND 65121) & Cholate-2,2,4,4-d4 (IND 65123)
  • Experimental: NASH patients with F0-F2 fibrosis
    Intervention: Device: Cholate-24-13C (IND 65121) & Cholate-2,2,4,4-d4 (IND 65123)
  • Experimental: NASH patients with F3-F4 fibrosis
    Intervention: Device: Cholate-24-13C (IND 65121) & Cholate-2,2,4,4-d4 (IND 65123)

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruiting
40
October 2014
July 2014   (final data collection date for primary outcome measure)

Inclusion Criteria:

  • Diagnosis of chronic HCV or NASH
  • Liver biopsy within 2 years of enrollment
  • Compensated liver disease

Exclusion Criteria:

  • Decompensated liver disease
  • Currently being treated with beta blockers, ACE inhibitors, or other agents affecting FMD
  • Malignancy diagnosed within 5 years of study enrollment without demonstrated clearance
  • History of congestive heart failure
  • Renal insufficiency with chronic kidney disease stage 4 or 5 (GFR < 30 mL/min/1.73m2)
  • Crohn's disease or any active intestinal inflammatory condition
  • Having an ileal resection
  • Diabetic Gastroparesis
  • Pregnancy or intent to become pregnant. Urine pregnancy tests will be performed at each visit.
  • Inability to consent for one's self
Both
22 Years to 65 Years
Yes
Contact: Michael Cookson 303-724-1876 Michael.Cookson@UCDenver.edu
Contact: Jennifer L DeSanto, RN 303-724-1861 Jennifer.DeSanto@UCDenver.edu
United States
 
NCT01579162
HepQuant-001
No
HepQuant, LLC
HepQuant, LLC
Not Provided
Principal Investigator: James R Burton, MD University of Colorado School of Medicine
HepQuant, LLC
February 2014

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP