MedPath

Interest of Ribavirin in the Maintenance Treatment of Liver Fibrosis Using Low Dose Pegylated Interferon alpha2b in Patients With Chronic Hepatitis C Non Responders to Previous Antiviral Therapy.

Phase 2
Completed
Conditions
Liver Fibrosis
Hepatitis C, Chronic
Interventions
Biological: Peginterferon alfa-2b
Drug: Ribavirin-Placebo
Registration Number
NCT00323804
Lead Sponsor
ANRS, Emerging Infectious Diseases
Brief Summary

Patients with chronic hepatitis C who did not respond to previous antiviral treatment develop liver fibrosis leading to cirrhosis. Maintenance low dose pegylated interferon therapy of fibrosis is currently under investigation in large multicenter trials. The aim of our study is to assess if peginterferon alpha2b plus ribavirin is more efficient than peginterferon alpha2b alone. 454 patients will be randomized between the 2 arms and the efficacy will be assessed, after 3 years of treatment, on Metavir liver fibrosis score improvement.

Detailed Description

Up to 45% of patients with chronic hepatitis C do not respond to pegylated interferon/ribavirin combination therapy. These patients are prone to develop liver fibrosis leading to cirrhosis and its complications. Interferon has proven to be efficient in liver fibrosis treatment even in case of virological non response. Maintenance low dose pegylated interferon therapy is currently under investigation in large multicenter trials. The aim of our study is to assess wether peginterferon alpha 2 b (0.5 µg/kg/week) plus ribavirin (800-1200 mg according to body weight) is more efficient than peginterferon alpha 2 b alone in a long term 3 years treatment of liver fibrosis. 454 patients, non responders (VHC RNA positive after 24 weeks of treatment or absence of ≥ 2 log HCV RNA drop after 12 weeks of treatment) to a previous peginterferon/ribavirin antiviral treatment will be randomized between the 2 arms, with a double-blind masking of ribavirin. The efficacy will be assessed on Metavir liver fibrosis score improvement between pre and post therapeutic liver biopsy.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
372
Inclusion Criteria
  • Adults over 18
  • With a hepatitis C virus infection (HCV RNA and anti-HCV antibodies in serum)
  • Not responders to a previous antiviral treatment using the interferon plus ribavirin combination
  • With a wash-out of treatment for at least 6 months
  • With an active chronic hepatitis C and a Metavir fibrosis score ≥ 2
  • Serum ALT levels > upper limit of the laboratory on two occasions within 6 months before inclusion
  • Accepting to undergo a liver biopsy at the end of the study
  • Negative pregnancy test for women
  • With a social security cover
  • Written informed consent
Exclusion Criteria
  • History of hepatic complications
  • History of transplantation
  • History of severe seizures
  • History of severe psychiatric disorders
  • Drug addiction within the last 12 months
  • Associated condition susceptible to be responsible for liver fibrosis
  • Hepatocellular carcinoma
  • Cardiovascular disease unstable under treatment
  • Uncontrolled diabetes
  • Retinopathy
  • Thyroid disease unstable under treatment
  • Epilepsy and/or central nervous system functional disorders
  • Autoimmune disease
  • Regular alcohol consumption
  • Pregnancy, breast-feeding or absence of contraception
  • Haemoglobin <12 g/dl
  • platelets <50000/mm3
  • Neutrophils < 1200/ mm3
  • Severe hepatocellular failure (prothrombin index lower than 60%)
  • Renal failure (creatinine clearance lower than 50 mL/Mn)
  • Associated immunosuppressive drugs, corticosteroids, antiviral drugs (other than study ones)
  • Treatment with drugs likely to have an effect on fibrosis
  • Anticonvulsants
  • Inability to tolerate interferon

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Randomised PegIFN alfa 2b + ribavirin (RBV) armRibavirinCombination of ribavirin capsules 200 mg, weight-based daily dose ( \<75 kg : 1000 mg ; ≥ 75 kg : 1200 mg), and low-dose PegIFN alfa 2b by subcutaneous injection 0.5 μg / kg / week, from day 0 to M36
Randomised PegIFN alfa 2b + ribavirin-placebo armPeginterferon alfa-2bCombination of ribavirin-placebo capsules 200 mg, weight-based daily dose ( \<75 kg : 1000 mg ; ≥ 75 kg : 1200 mg), and low-dose PegIFN alfa 2b by subcutaneous injection 0.5 μg / kg / week, from day 0 to M36
Randomised PegIFN alfa 2b + ribavirin-placebo armRibavirin-PlaceboCombination of ribavirin-placebo capsules 200 mg, weight-based daily dose ( \<75 kg : 1000 mg ; ≥ 75 kg : 1200 mg), and low-dose PegIFN alfa 2b by subcutaneous injection 0.5 μg / kg / week, from day 0 to M36
Randomised PegIFN alfa 2b + ribavirin (RBV) armPeginterferon alfa-2bCombination of ribavirin capsules 200 mg, weight-based daily dose ( \<75 kg : 1000 mg ; ≥ 75 kg : 1200 mg), and low-dose PegIFN alfa 2b by subcutaneous injection 0.5 μg / kg / week, from day 0 to M36
Primary Outcome Measures
NameTimeMethod
Rate of patients with at least a one point improvement in Metavir fibrosis score between the inclusion and the end-of-study liver biopsies.Screen visit and M36
Secondary Outcome Measures
NameTimeMethod
Safety of treatment and quality of lifeday0, M6, M12, M24, M36
Rate of patients with loss of detectable hepatitis C virus RNADay 0 to M36
Distribution of the Chevallier fibrosis scoreScreen visit and M36
Evolution of the area of fibrosis between the inclusion and the end-of -study biopsiesScreen visit and M36
Liver elasticity before and after treatmentScreen,M12, M24, M36
Evolution of the hepatitis C viral loadScreen to M36
Distribution of the Metavir scoring on the end-of-study biopsyM36
Fibrosis serum markersScreen, day0, M6, M12, M24, M36
Frequency of occurrence of hepatic complications and/or liver transplantationsDay 0 to M36

Trial Locations

Locations (43)

Service d'Hépatogastroentérologie - CH La Roche sur Yon

🇫🇷

La Roche sur Yon, France

Service d'Hépatogastroentérologie - CH Montélimar

🇫🇷

Montelimar, France

Centre Hospitalier

🇫🇷

Saint Quentin, France

Service d'Hépatogastroentérologie - Hôpital du Bocage

🇫🇷

Dijon, France

Service d'Hépatogastroentérologie - Hôpital Saint Eloi

🇫🇷

Montpellier, France

Service d'Hépatogastroentérologie - Hôpital de la Source

🇫🇷

Orléans, France

Service d'Hépatogastroentérologie - Hôpital La Pitié Salpétrière

🇫🇷

Paris, France

Hôpital Purpan

🇫🇷

Toulouse, France

CHU Sart Tilman

🇧🇪

Liège, Belgium

Service d'Hépatogastroentérologie et d'endoscopie digestive - CH du Pays d'Aix

🇫🇷

Aix en Provence, France

Service d'Hépatogastroentérologie - Hôpital Nord

🇫🇷

Amiens, France

Service d'Hépatologie - Gastroentérologie - Cancérologie digestive - CHU Angers

🇫🇷

Angers, France

Service d'Hépatogastroentérologie - Hôpital Avicenne

🇫🇷

Bobigny, France

Service d' Hépatogastroentérologie - Hôpital Jean Verdier

🇫🇷

Bondy, France

Service d'Hépatogastroentérologie et d'Assistance nutritive - Hôpital Haut-Lévêque

🇫🇷

Bordeaux Pessac, France

Service des Maladies du Foie et de l'appareil Digestif - Hôpital de Bicêtre

🇫🇷

Le Kremlin-Bicêtre, France

Département d'Hépatogastroentérologie - CH Le Mans

🇫🇷

Le Mans, France

Service d'Hépatogastroentérologie - CHRU - Hôpital Claude Huriez

🇫🇷

Lille, France

Service d'Hépatogastroentérologie - Hotel de la Croix Rousse

🇫🇷

Lyon, France

Service d'Hépatogastroentérologie - Hôpital Pontchaillou

🇫🇷

Rennes, France

Service d'Hépatogastroentérologie - CHU Rouen

🇫🇷

Rouen, France

Service d'Hépatogastroentérologie, Clinique médicale B - Hôpital Civil

🇫🇷

Strasbourg, France

Service d'Hépatogastroentérologie - Hôpital Tenon

🇫🇷

Paris, France

Service d'Hépatogastroentérologie - Hôpital Trousseau

🇫🇷

Tours, France

Service d'Hépatogastroentérologie - Hôpital Brabois

🇫🇷

Vandoeuvre les Nancy, France

Hôpita Paul Brousse

🇫🇷

Villejuif, France

Hôpital Erasme

🇧🇪

Bruxelles, Belgium

CHU Brugmann

🇧🇪

Bruxelles, Belgium

Hôpital Bracops

🇧🇪

Bruxelles, Belgium

Centre Hospitalier Victor Dupouy

🇫🇷

Argenteuil, France

Hôpital Nord

🇫🇷

Grenoble, France

CH Pierre OUDOT

🇫🇷

Bourgoin-Jallieu, France

Service d'Hépatogastroentérologie - Hôpital Beaujon

🇫🇷

Clichy, France

Service d'Hépatogastroentérologie - Hôpital de la Cavale Blanche

🇫🇷

Brest, France

Service d'Hépatologie - Gastroentérologie - Nutrition -Hôpital de la Côte de Nacre

🇫🇷

Caen, France

Service d'Hépatogastroentérologie - CHU d'ESTAING

🇫🇷

Clermont-Ferrand, France

Service d'Hépatogastroentérologie - CH Sud Francilien

🇫🇷

Corbeil-Essonnes, France

Service d'Hépatogastroentérologie - Hôpital Saint Joseph

🇫🇷

Marseille, France

Service d'Hépatogastroentérologie - CH Montauban

🇫🇷

Montauban, France

Service d'Hépatogastroentérologie - Hôtel Dieu

🇫🇷

Nantes, France

Hôpital de l'Archet

🇫🇷

Nice, France

Service d'Hépatogastroentérologie - Hôpital Purpan

🇫🇷

Toulouse, France

Hôpital de Jolimont

🇧🇪

La Louvière, Belgium

© Copyright 2025. All Rights Reserved by MedPath