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Study Comparing the Tolerability and Viral Reduction of the Combination of IFN a-2b XL + Ribavirin Versus Peg IFN a-2b + Ribavirin in Patients With Chronic Hepatitis C, Genotype 1 or 4

Multicentre, Randomised, Open-label Study Comparing the Tolerability and Viral Reduction of the Combination of IFN Alpha-2b XL + Ribavirin Versus Peg IFN Alpha-2b + Ribavirin in Patients With Chronic Hepatitis C, Genotype 1 or 4.

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01010646
Acronym
COAT IFN
Enrollment
84
Registered
2009-11-10
Start date
2010-03-01
Completion date
2013-06-01
Last updated
2026-06-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Hepatitis C

Keywords

hepatitis C, viral kinetics, antiviral response, Genotype 1 or 4

Brief summary

Three-parallel-arm, open-label, international (France and Romania) study, comparing three treatments The purpose of this study is to confirm if IFN alfa-2b XL has a better antiviral activity and tolerability as compared with current marketed reference, while combined with ribavirin, in a 3-month therapy setting.

Detailed description

Interferon alfa-2b XL (IFN alfa-2b XL) is a novel sustained release interferon α-2b drug product that is being developed by FLAMEL TECHNOLOGIES using its Medusa® technology, aiming at reducing the toxicity and enhancing the biological response. In the present study, patients will be randomly assigned to either IFN alfa-2b XL 27 MUI, IFN alfa-2b XL 36 MUI, or IFN peg alfa-2b 1.5 µg/kg, all administered once a week for 12 weeks by subcutaneous injections, in combination with weight dosed ribavirin daily administered orally in two divided doses. Doses will be adapted according to the dose modification guidelines for combination therapy labelled in the ribavirin prescribing information.

Interventions

DRUGIFN alfa-2b XL 27 MUI + Ribavirin

IFN alfa-2b XL 27 MUI administered once a week for 12 weeks by subcutaneous injections, in combination with weight dosed ribavirin daily administered orally in two divided doses

DRUGIFN alfa-2b XL 36 MUI + Ribavirin

IFN alfa-2b XL 36 MUI administered once a week for 12 weeks by subcutaneous injections in combination with weight dosed ribavirin daily administered orally in two divided doses

DRUGIFN peg alfa-2b 1.5 µg/kg + Ribavirin

IFN peg alfa-2b 1.5 µg/kg administered once a week for 12 weeks by subcutaneous injections in combination with weight dosed ribavirin daily administered orally in two divided doses

Sponsors

ANRS, Emerging Infectious Diseases
Lead SponsorOTHER_GOV
Flamel Technologies
CollaboratorUNKNOWN

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Patient having voluntarily signed the Informed Consent Form prior to any study specific procedure being performed * Male or female HCV genotype 1 or 4 infected patients (positive serum HCV RNA), aged between 18 and 65 years inclusive, with a body mass within the range over or equal of 45Kg and below or equal to 100 Kg * Patient being either naïve to therapy, either non-responder to previous standard Peg-interferon α + ribavirin therapy, * With no absolute contra-indication to interferon α or ribavirin * Female patients must be non-lactating and of non-childbearing potential, or have a negative pregnancy test results to enter the study * No evidence of acute or advanced liver disease, uncontrolled diabetes, cardiovascular, immunological, or thyroid disease, and no recently diagnosed malignancy * Vital signs within normal ranges, or if outside the normal ranges, not deemed clinically significant in the opinion of the Investigator. An ECG with no clinically significant abnormalities

Exclusion criteria

* History of solid organ transplantation * Severe systemic infection, uncontrolled diabetes, cancers, associated liver disease * General anesthesia or recent blood transfusion

Design outcomes

Primary

MeasureTime frame
Viral load decrease at Week 4 and Week 12 of treatment with IFN alfa-2b XL 27 MIU, IFN alfa-2b XL 36 MIU and the marketed reference product (PEG IFN alfa-2b 1.5μg/kg) in combination with ribavirinWeek 4 and Week 12

Secondary

MeasureTime frame
Percentage of patients with early virologic response (EVR) (reduction of at least 2 log viral load) at the end of week 12Week 4 and Week 12
Percentage of patients with complete early virologic response (EVR) (viral load <15 IU) at the end of the week 12Week 4 and Week 12

Countries

France

Contacts

PRINCIPAL_INVESTIGATORChristian TREPO, MD

Hôpital de la Croix Rousse, Service d'Hépato-Gastro-Entérologie, 69004 Lyon - FRANCE

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 6, 2026