Analysis of the Duration of Combination Therapy That is Necessary for HCV Genotype 1 Eradication

NCT ID: NCT00152581

Last Updated: 2005-12-01

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE4
• Total Enrollment: 40 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2002-04-30

Brief Summary

Open-label, single centre study evaluating efficacy and viral kinetics of combination PEG-IFNa2a and Ribavirin treatment on CHC genotype 1 patients, administered until viral clearance demonstrated between 4 - 12 weeks, then randomised to further continued combination treatment for one of three defined durations. Followed-up for 24 weeks after treatment cessation.

Objectives:

1. To determine the necessary duration of combination treatment with Pegylated-Interferon alfa2a (PEGASYS) & Ribavirin in Patients infected with genotype 1, in order to achieve viral clearance

2. To identify host factors, which are associated with different patterns of virological response to combination treatment (fast responder, slow responder, non-responder). On this basis, to identify possible predictors for the duration of antiviral treatment.

Detailed Description

Forty treatment-naïve patients with chronic hepatitis C, all infected with genotype 1, will be entered into this study. All 40 patients will be started on the same regimen of 180mg Pegylated-Interferon alfa2a (PEGASYS) weekly plus Ribavirin 1000-1200mg daily. HCV RNA in the serum will be monitored by qualitative PCR at treatment weeks 4, 8 and 12. Patients who become HCV RNA negative at any of the above time-points (4,8 or 12), will be randomised into one of three groups to continue the same antiviral regimen for an additional 3 month, 6 month or 9 month period. All these patients will subsequently be followed-up and monitored for a further 6 months after stopping all antiviral treatment.

Treatment will be discontinued for patients who remain persistently HCV RNA positive at treatment week 12 and they will be withdrawn from the study protocol.

Conditions

Chronic Hepatitis C, HCV Genotype 1

Keywords

HCV, genotype 1, treatment, HCV kinetics, T-cells

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Interventions

Pegylated interferon-alfa2a (Pegasys); ribavirin

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

• Age 18 - 65
• HCV RNA positive
• HCV genotype 1
• Histologically proven chronic hepatitis
• No previous antiviral treatment

Exclusion Criteria

• Liver histology showing cirrhosis
• Decompensated liver function
• WCC < 1500/mm3 or platelet count <90,000/mm3
• Co-infection with HIV or HBV/HAV
• Alcohol intake greater than 40 units/week
• Current intravenous drug dependence
• Pregnancy or breast feeding of infants
• Inadequate contraception
• Neuropsychiatric disorder
• Neoplastic disease
• Other significant medical problems

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 65 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

University College London Hospitals

OTHER

Sponsor Role: lead

Principal Investigators

Nikolai V. Naoumov, MD

Role: PRINCIPAL_INVESTIGATOR

Institute of Hepatology, University College London

Locations

Hepatitis Clinic

University College London Hospital, London, United Kingdom

Countries

United Kingdom

Other Identifiers

01/0277

Identifier Type: -

Identifier Source: org_study_id