Effect of Low-dose PegIntron on ALT Normalization in Japanese Patients With Chronic Hepatitis C (Study P04508)(COMPLETED)

March 8, 2017 updated by: Merck Sharp & Dohme LLC

Study to Confirm Dose Response With PegIntron (SCH 54031) Monotherapy in Patients With Chronic Hepatitis C

In patients with chronic hepatitis C, the ultimate treatment goal is the improvement of liver histology and inhibition of progression to liver cirrhosis and hepatocellular carcinoma (HCC). These effects are reported to be correlated with sustained ALT improvement. Therefore, the aim of this study is to determine if a low-dose (0.25, 0.5, or 1.0 mcg/kg SC QW) PegIntron monotherapy administered for 12 weeks will result in ALT normalization in Japanese patients with chronic hepatitis C.

Study Overview

Study Type

Interventional

Enrollment (Actual)

69

Phase

  • Phase 2

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

20 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

Patients with chronic hepatitis C patients (CHC) who met all of the following criteria:

  • At least 20 years of age and willing to sign an informed consent
  • Patients who can practice contraception
  • Patients who are classified either as relapsers or non-responders.
  • Weight between 45 and 100 kg
  • Patients willing to be hospitalized for 3 days after the start of treatment
  • Patients with positive HCV-RNA
  • Serum ALT level: Over 60 IU/L, equal to or less than 150 IU/L
  • Neutrophil count: equal to or more than 1,200 /mm^3
  • Platelet count:equal to or more than 100,000/mm^3

Exclusion Criteria:

  • Patients with conditions which would interfere with the evaluation of therapeutic efficacy of the study drug and patients for whom assurance of safety is a concern were excluded from the study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 0.25 Dose Group
PegIntron 0.25 mcg/kg SC QW for 12 weeks
PegIntron 0.25 mcg/kg subcutaneously (SC) once a week (QW) for 12 weeks
Other Names:
  • PegIntron, peginterferon alfa-2b, SCH 54031
PegIntron 0.5 mcg/kg SC QW for 12 weeks
Other Names:
  • PegIntron, peginterferon alfa-2b, SCH 54031
PegIntron 1.0 mcg/kg subcutaneously (SC) once a week (QW) for 12 weeks
Other Names:
  • PegIntron, peginterferon alfa-2b, SCH 54031
Experimental: 0.5 Dose Group
PegIntron 0.5 mcg/kg SC QW for 12 weeks
PegIntron 0.25 mcg/kg subcutaneously (SC) once a week (QW) for 12 weeks
Other Names:
  • PegIntron, peginterferon alfa-2b, SCH 54031
PegIntron 0.5 mcg/kg SC QW for 12 weeks
Other Names:
  • PegIntron, peginterferon alfa-2b, SCH 54031
PegIntron 1.0 mcg/kg subcutaneously (SC) once a week (QW) for 12 weeks
Other Names:
  • PegIntron, peginterferon alfa-2b, SCH 54031
Experimental: 1.0 Dose Group
PegIntron 1.0 mcg/kg SC QW for 12 weeks
PegIntron 0.25 mcg/kg subcutaneously (SC) once a week (QW) for 12 weeks
Other Names:
  • PegIntron, peginterferon alfa-2b, SCH 54031
PegIntron 0.5 mcg/kg SC QW for 12 weeks
Other Names:
  • PegIntron, peginterferon alfa-2b, SCH 54031
PegIntron 1.0 mcg/kg subcutaneously (SC) once a week (QW) for 12 weeks
Other Names:
  • PegIntron, peginterferon alfa-2b, SCH 54031
No Intervention: No-treatment Control
No treatment (no placebo)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Percentage of patients who achieve normalization of ALT in each treatment group
Time Frame: Measured at the end of 12 weeks of treatment or at discontinuation.
Measured at the end of 12 weeks of treatment or at discontinuation.

Secondary Outcome Measures

Outcome Measure
Time Frame
Safety: adverse events, adverse reactions, laboratory test result (hematology, blood biochemistry and thyroid function test)
Time Frame: Measured between when the patient signs the informed consent form and the end of post-treatment follow-up
Measured between when the patient signs the informed consent form and the end of post-treatment follow-up

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

June 1, 2005

Primary Completion (Actual)

July 1, 2006

Study Completion (Actual)

July 1, 2006

Study Registration Dates

First Submitted

November 6, 2008

First Submitted That Met QC Criteria

November 6, 2008

First Posted (Estimate)

November 7, 2008

Study Record Updates

Last Update Posted (Actual)

March 13, 2017

Last Update Submitted That Met QC Criteria

March 8, 2017

Last Verified

March 1, 2017

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Study Data/Documents

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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