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Study of Response in Chronic Hepatitis C (CHC) Participants Genotype 1 With Insulin Resistance and Prolonged Treatment Duration in Late Responders (P04823/MK-4031-303)

NCT00493805 · Status: TERMINATED · Phase: PHASE4 · Type: INTERVENTIONAL · Enrollment: 59

Last updated 2017-04-07

Study results available
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Summary

This is a Phase 3b/4, prospective, open-label, randomized, multicenter study of peginterferon alfa-2b plus ribavirin in participants with chronic hepatitis C, genotype 1. The study consists of two parts: (1) a noninterventional arm (HOMA IR \<= 2) and (2) an interventional arm (HOMA IR \> 2), where HOMA IR is the insulin resistance index for the participants calculated by fasting insulin (uU/mL) x \[fasting glucose (mmol/L)/22.5\]. Participants in the noninterventional arm are treated according to the European labeling and response rates are evaluated at Month 1 (optional), 3, 6, 12, and follow up. Participants in the interventional arm are treated with PEG-Intron 1.5 ug/kg (subcutaneous) once weekly plus weight-based REBETOL 800-1400 mg (oral capsules) daily for a variable period depending on their response at Week 12: (1) HCV-RNA positive with \< 2-log drop in viral load, treatment will be discontinued; (2) HCV-RNA positive with \>= 2-log drop in viral load; participants will be randomized (1:1) to Group A (stop treatment at Week 48) or Group B (stop treatment at Week 72); and (3) HCV-RNA negative, treatment will be changed to be according to the European labeling and response rates will be evaluated at Month 6, 12, and follow up. All participants will go on with their treatment after Week 12 until the results of the HCV polymerase chain reaction (PCR) are available (maximum of 4 weeks).

Conditions

Interventions

DRUG

Combination of pegylated interferon alfa-2b and ribavirin

1. Powder for injection in Redipen (50, 80, 100, 120, and 150 microgram strengths), subcutaneous, dose of 1.5 micrograms/kg, weekly for 12 weeks, then up to 4 weeks until HCV PCR results are available, and then for another 36 weeks(Group A) or 60 weeks (Group B) postrandomization. 2. 200 mg capsules, oral, weight based dose of 800-1400 mg, daily for up to 12 weeks, then up to 4 weeks until HCV PCR results are available, and then for another 36 weeks (Group A) or 60 weeks (Group B) postrandomization

DRUG

Combination of pegylated interferon alfa-2b and ribavirin

1. Powder for injection in Redipen (50, 80, 100, 120, and 150 microgram strengths), subcutaneous, dose of 1.5 micrograms/kg, weekly for 48 weeks 2. 200 mg capsules, oral, weight based dose of 800-1400 mg, daily for 48 weeks

Sponsors & Collaborators

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2007-04-30
Primary Completion
2009-10-31
Completion
2009-10-31

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00493805 on ClinicalTrials.gov