Working… Menu

Interferon Treatment for Patients With Chronic Hepatitis C and End Stage Renal Disease

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: NCT00172809
Recruitment Status : Completed
First Posted : September 15, 2005
Last Update Posted : March 6, 2008
Information provided by:
National Taiwan University Hospital

Brief Summary:
The treatment response with conventional interferon alpha alone in patients with end stage renal disease and chronic hepatitis C is about 33-39%. However, the drop-out rate is 17-29.6%. Pegylated interferon alpha, a newly developed form of interferon with superior pharmacokinetic profiles, has not been used to treatment these patients. We expect the better treatment response treated with peginterferon alpha than conventional interferon. In addition, we also observe the safety of the two drugs during the study. The goal of the study is to compare the efficacy and safety of the two different treatment regimens in patients with chronic hepatitis C and end stage renal disease.

Condition or disease Intervention/treatment Phase
Chronic Hepatitis C End Stage Renal Disease Drug: Peginterferon alfa-2a Drug: Interferon alfa-2a Phase 4

Detailed Description:

Chronic hepatitis C virus (HCV) infection is common among patients with end stage renal disease (ESRD), with the reported prevalence ranging from 8 to 20% in dialysis patients in developed world. In Taiwan, the estimated prevalence of HCV infection in patients with ESRD who maintain hemodialysis ranges from 20 to 24.7%. Although most studies have provided mild to moderate disease activity and a high proportion of normal alanine aminotransferase (ALT) levels, the frequency of bridging hepatic fibrosis or cirrhosis ranges from 5 to 32%. Several studies have shown that chronic hepatitis C adversely affects the survival in patients with ESRD. After renal transplantation, recipients with HCV have an increased risk of liver-related mortality and morbidity compared with those without HCV. Therefore, eradication of HCV can improve clinical outcome in dialysis patients as well as in patients awaiting renal transplantation.

Combined interferon and ribavirin is the standard therapy in HCV-infected patients with normal renal function. However, ribavirin, which is cleared by the kidneys, may cause severe hemolytic anemia and be dangerous in dialysis patients. Two recent meta-analyses showed that the sustained virological responses were (SVR) 39% and 33%; the drop-out rate were 17% and 29.6% in HCV-infected dialysis patients treated with interferon-alpha 3 MU thrice weekly of varied duration. The response and the drop-out rate were higher than that reported in HCV-infected patients with normal renal function (SVR of 7-16% by interferon-alpha 3 MU thrice weekly for 24 weeks; drop-out rate of 5-9%) due to a lower interferon clearance rate.

Peginterferon alpha-2a (40KD) is a modified form of interferon alpha-2a consisting of a branched polyethylene glycol (PEG) chain covalently bound to interferon alpha-2a. A better response of peginterferon alpha-2a than interferon alpha-2a has been demonstrated in HCV-infected patients with normal renal function, either combined with ribavirin or not, due to the superior pharmacokinetic profiles. The clearance of peginterferon alpha-2a for ESRD patients was about 30-40% lower than that in healthy subjects. A similarly pharmacokinetic profile of peginterferon alpha-2a is observed with 135 μg weekly in dialysis patients compared with 180μg weekly in patients with normal renal function.

We expect that peginterferon alpha-2a is superior to interferon alpha-2a in achieving an increased SVR and decreased drop-out rate in dialysis patients. The goal of the study is to compare the efficacy and safety of the two different treatment regimens in patients with chronic hepatitis C and end stage renal disease.

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 50 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Pilot Study in Comparing the Efficacy and Safety of Peginterferon Alfa-2a and Interferon Alfa-2a in Treating Patients With End Stage Renal Disease and Chronic Hepatitis C
Study Start Date : July 2005
Actual Primary Completion Date : June 2006
Actual Study Completion Date : January 2007

Arm Intervention/treatment
Active Comparator: 1
Peginterferon alfa-2a (Pegasys, Hoffmann-LaRoche) 135 ug/week for 24 weeks
Drug: Peginterferon alfa-2a
Peginterferon alfa-2a 135 ug/week for 24 weeks
Other Name: Pegasus 135 ug/syringe

Active Comparator: 2
Interferon alfa-2a (Roferon, Hoffmann-LaRoche) 3 MU tiw for 24 weeks
Drug: Interferon alfa-2a
Interferon alfa-2a 3 MU tiw for 24 weeks
Other Name: Roferon 3 MU/syringe

Primary Outcome Measures :
  1. Sustained histological response and sustained virological response 6 months after the completion of the intervention [ Time Frame: 1 year ]

Secondary Outcome Measures :
  1. The overall tolerance of the two different regimens and the comparison of the rates of side effects [ Time Frame: 1 year ]

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Layout table for eligibility information
Ages Eligible for Study:   18 Years to 65 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Age between 18 to 65 years old
  • Creatinine clearance (Ccr) < 10 ml/min/1.73 m2
  • Receiving regular hemodialysis
  • Anti-HCV (Abbott HCV EIA 2.0, Abbott Diagnostic, Chicago, IL) positive > 6 months
  • Detectable serum HCV-RNA (Cobas Amplicor HCV Monitor v2.0, Roche Molecular Systems, Pleasanton, CA) with dynamic range 600~<500,000 IU/ml

Exclusion Criteria:

  • Neutropenia (neutrophil count, <1,500/mm3)
  • Thrombocytopenia (platelet <90,000/ mm3)
  • Co-infection with HBV or HIV
  • Chronic alcohol abuse (daily consumption > 20 g/day)
  • Decompensated liver disease (Child classification B or C)
  • Neoplastic disease
  • An organ transplant
  • Immunosuppressive therapy
  • Poorly controlled autoimmune diseases, pulmonary diseases, cardiac diseases, psychiatric diseases, neurological diseases, diabetes mellitus
  • Evidence of drug abuse
  • Unwilling to have contraception

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00172809

Layout table for location information
National Taiwan University Hospital, Yun-Lin Branch
Douliou, Taiwan
Sponsors and Collaborators
National Taiwan University Hospital
Layout table for investigator information
Principal Investigator: Chen-Hua Liu, M.D. Department of Internal Medicine, National Taiwan Univeristy Hospital, Yun-Lin Branch

Layout table for additonal information
Responsible Party: National Taiwan University Hospital Identifier: NCT00172809    
Other Study ID Numbers: 940209
First Posted: September 15, 2005    Key Record Dates
Last Update Posted: March 6, 2008
Last Verified: June 2007
Keywords provided by National Taiwan University Hospital:
Chronic Hepatitis C
End stage renal disease
Pegylated interferon
Additional relevant MeSH terms:
Layout table for MeSH terms
Hepatitis A
Hepatitis C
Hepatitis C, Chronic
Hepatitis, Chronic
Kidney Diseases
Kidney Failure, Chronic
Liver Diseases
Digestive System Diseases
Hepatitis, Viral, Human
Virus Diseases
Enterovirus Infections
Picornaviridae Infections
RNA Virus Infections
Flaviviridae Infections
Urologic Diseases
Renal Insufficiency, Chronic
Renal Insufficiency
Interferon alpha-2
Peginterferon alfa-2a
Antineoplastic Agents
Antiviral Agents
Anti-Infective Agents
Immunologic Factors
Physiological Effects of Drugs