Study of Hepatitis C Virus (HCV) Viral Kinetics in HIV/HCV and HCV Patients (VK)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00703560
Recruitment Status : Completed
First Posted : June 23, 2008
Last Update Posted : January 21, 2013
Information provided by (Responsible Party):
Mamta Jain, University of Texas Southwestern Medical Center

June 19, 2008
June 23, 2008
January 21, 2013
September 2005
September 2011   (Final data collection date for primary outcome measure)
Comparison of interferon effectiveness (as measured by epsilon) in HIV/HCV to HCV alone and African American to Caucasians. [ Time Frame: 72 weeks ]
Same as current
Complete list of historical versions of study NCT00703560 on Archive Site
  • SVR rate in HIV/HCV vs. HCV and African Americans vs. Caucasians [ Time Frame: 72 weeks ]
  • Comparison of HCV quasi-species diversity [ Time Frame: 72 weeks ]
Same as current
Not Provided
Not Provided
Study of Hepatitis C Virus (HCV) Viral Kinetics in HIV/HCV and HCV Patients
Molecular Basis of Interferon Response in HCV

The purpose of this study is to evaluate what happens to hepatitis C virus in response to treatment with pegylated interferon and ribavirin in patients with HCV compared to those with HIV and HCV.

This research is being done to help us identify how the composition of HCV changes with interferon in different populations. We will examine how quickly HCV is cleared from your body and what factors may influence that clearance. This information may help us find better treatments for HCV.

All patients who participate in this study will have frequent blood drawn in order to measure how quickly HCV virus declines. Pegylated interferon and ribavirin are not provided by the study, but will be obtained as part of standard of care treatment for hepatitis C. Participants must be willing to spend 48 hours in the hospital for frequent blood draws. They will be compensated for their time.

All patients must be HCV genotype 1. All patients must have a liver biopsy prior to enrollment into study. (This is not provided by the study).

HIV-infected patients must have a CD4 cell count>300. If HIV-infected and on antiretroviral therapy for HIV, they must be on a stable regimen for 12 weeks. The HIV regimen can not include didanosine (Videx).

Observational Model: Cohort
Time Perspective: Prospective
Not Provided
Retention:   Samples With DNA
serum, peripheral blood mononuclear cells
Non-Probability Sample
Patients with HCV genotype 1 with or without HIV-infection of any race.
Hepatitis C
Not Provided
  • 1
    HIV and HCV genotype 1 coinfected (any race)
  • 2
    HCV genotype 1 (any race)
Jain MK, Pasipanodya JG, Alder L, Lee WM, Gumbo T. Pegylated interferon fractal pharmacokinetics: individualized dosing for hepatitis C virus infection. Antimicrob Agents Chemother. 2013 Mar;57(3):1115-20. doi: 10.1128/AAC.02208-12. Epub 2012 Nov 26.

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
Same as current
January 2013
September 2011   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  1. HCV infection, as documented by the presence of circulating levels of HCV RNA by any RT-PCR or bDNA assay performed by a laboratory with a CLIA certification or its equivalent within 52 weeks prior to study entry.
  2. HCV RNA >1000 IU/ml.
  3. Documented genotype 1 performed by any CLIA certified lab.
  4. Men and women age 18 to 65 years.
  5. Ability and willingness of subject or legal guardian/representative to give written informed consent.
  6. Female study volunteers of reproductive potential must be willing to use two methods of birth control in order to prevent pregnancy while on IFN/RBV.

For HIV infected patients:

  1. HIV-1 infection, as documented by any licensed ELISA test kit and confirmed by Western blot at any time prior to study entry. HIV-1 culture, HIV-1 antigen, plasma HIV-1 RNA, or a second antibody test by a method other than ELISA is acceptable as an alternative confirmatory test.
  2. CD4+ cell count ³ 300 cells/mm3 within the prior 12 weeks at a CLIA certified lab or its equivalent.
  3. Subject may be HAART naïve, but if on HAART should be on a stable regimen for 12 weeks The HAART regimen cannot include didanosine (Videx). Interaction with ribavirin and didanosine has led to fatal hyperlactatemia in a few patients.

Exclusion Criteria:

  1. Unwilling to be admitted for 48 hours for serial blood draws for virology studies.
  2. Hepatitis B surface antigen (HBsAg) positivity.
  3. Prior IFN -based therapy.

Additional Exclusion for HIV-infected:

  1. Current symptomatic HIV disease (i.e., AIDS-defining illnesses).
  2. HAART regimen that contains Videx (Didanosine). Subject may previously have been on didanosine but if on a new HAART regimen should be on the regimen for 12 weeks.
Sexes Eligible for Study: All
18 Years and older   (Adult, Senior)
Contact information is only displayed when the study is recruiting subjects
Not Provided
United States
K23AI065630 ( U.S. NIH Grant/Contract )
Not Provided
Not Provided
Mamta Jain, University of Texas Southwestern Medical Center
University of Texas Southwestern Medical Center
Not Provided
Principal Investigator: Mamta K. Jain, MD, MPH UT Southwestern Medical Center
University of Texas Southwestern Medical Center
January 2013