100% VS 80% Of Pegasys In Koreans With Chronic Hepatitis C (CHC)

NCT ID: NCT01378104

Last Updated: 2013-03-08

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

178 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-10-31

Study Completion Date

2012-09-30

Brief Summary

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1. Randomized controlled multicenter study
2. The response of reducing dose of peginterferon alfa-2a in Koreans with chronic hepatitis C genotype 1
3. IL28B polymorphism in Koreans with CHC

Detailed Description

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The virologic response of Koreans to combination therapy for chronic hepatitis C is similar to non-Asians; however, dose modification occurs more frequently in Koreans.

-When we evaluated the rates of peginterferon α-2a and ribavirin dose modifications and their effect on the virologic response in Koreans, we suggested that using at least 80% of the peginterferon α-2a dose in Koreans not only maintains SVR but also reduces drug side effects during the entire treatment period and a lower dose of ribavirin may be as efficacious as a standard dose(Korean J Intern Med 2009;24:203-211).

So we investigate whether the group of 80% use dosage of peginterferon alfa-2a did not show inferior response rather than that of 100 % use dosage group and minimize the adverse events.

There are recently reports that Koreans have favorable IL28B SNP for CHC treatment.

-We investigate the IL28B polymorphism in Koreans with CHC and this result can effect on the SVR depending on the dosage of peginterferon alfa 2a

Conditions

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Sustained Virologic Response IL28B Polymorphism

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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80% dosage group of peginterferon alfa 2a

This group patients will treated the same full dose (180ug/week) of peginterferon alfa 2a during the first 12 weeks and then reduce the 75% dose (135ug/week) of peginterferon alfa 2a during remnant 36 weeks. At a result, these patients treated with 80% dosage of originally prescribed peginterferon alfa-2a for standard 48 weeks of treatment.

Group Type EXPERIMENTAL

peginterferon alfa 2a (pegasys)

Intervention Type DRUG

dosage form; 180ug/week during first 12 weeks and then 135 ug/week during 36 weeks otherwise unremarkable

100% dosage group of peginterferon alfa 2a

These group patients would be treated with standard dose 180 ug/week for 48 weeks.

Group Type ACTIVE_COMPARATOR

peginterferon alfa-2a (pegasys)

Intervention Type DRUG

These patients would be treated with standard dose 180ug /week for 48 weeks. In general, the patient with CHC genotype 1is guided with treatment with pegasys 180ug /week and ribavirin 1000-1200 mg/day for 48 weeks. We do not make intervention of ribavirin dose.

Interventions

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peginterferon alfa 2a (pegasys)

dosage form; 180ug/week during first 12 weeks and then 135 ug/week during 36 weeks otherwise unremarkable

Intervention Type DRUG

peginterferon alfa-2a (pegasys)

These patients would be treated with standard dose 180ug /week for 48 weeks. In general, the patient with CHC genotype 1is guided with treatment with pegasys 180ug /week and ribavirin 1000-1200 mg/day for 48 weeks. We do not make intervention of ribavirin dose.

Intervention Type DRUG

Other Intervention Names

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Roche Roche

Eligibility Criteria

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Inclusion Criteria

* chronic hepatitis C (anti HCV+, HCV RNA +)
* Genotype 1
* over 18 year-old
* Pregnancy test negative if women of childbearing age

Exclusion Criteria

* pregnant women or breast feeding women
* systemic chemotherapy or steroid therapy before 6 months of trial
* Coinfection with HAV, HBV, and HIV
* Other liver disease such as hemochromatosis, autoimmune hepatitis, metabolic liver disease, alcoholic liver disease, toxic hepatitis
* Hepatocellular carcinoma
* Evidence of decompensation such as variceal bleeding,ascites, encephalopathy
* ANC less than 1500, platelet less than 90k
* Cr more than 1.5 of UNL
* Severe psychiatric problem
* Poorly controlled thyroid disease
* Severe retinopathy
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Ulsan University Hospital

OTHER

Sponsor Role collaborator

National Health Insurance Service Ilsan Hospital

OTHER

Sponsor Role collaborator

Inje University

OTHER

Sponsor Role collaborator

Soonchunhyang University Hospital

OTHER

Sponsor Role collaborator

Yonsei University

OTHER

Sponsor Role collaborator

Chungnam National University

OTHER

Sponsor Role collaborator

Keimyung University

OTHER

Sponsor Role collaborator

Kyungpook National University Hospital

OTHER

Sponsor Role collaborator

Konyang University Hospital

OTHER

Sponsor Role collaborator

Inha University Hospital

OTHER

Sponsor Role collaborator

Hallym University Medical Center

OTHER

Sponsor Role collaborator

The Catholic University of Korea

OTHER

Sponsor Role lead

Responsible Party

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Jung Hyun Kwon

Assistant professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Jung Hyun Kwon, MD, Assistant professor

Role: PRINCIPAL_INVESTIGATOR

The Catholic University of Korea

Locations

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Soonchunghyang University Hospital

Bucheon-si, , South Korea

Site Status

Hallym University Chunchun Medical center

Chunchun, , South Korea

Site Status

Keimyung University hospital

Daegu, , South Korea

Site Status

Kyungpook National University Hospital

Daegu, , South Korea

Site Status

Ghungnam National University hospital

Daejun, , South Korea

Site Status

Konyang University hospital

Daejun, , South Korea

Site Status

Incheon St. Mary's Hospital

Incheon, , South Korea

Site Status

Inha University hospital

Incheon, , South Korea

Site Status

Inje University, Ilsan Paik Hospital

Koyang-si, , South Korea

Site Status

NHIC Ilsan hospital

Koyang-si, , South Korea

Site Status

Inje University, Pusan Paik Hospital

Pusan, , South Korea

Site Status

Seoul St. Mary's Hospital, The Catholic University of Korea

Seoul, , South Korea

Site Status

Ulsan university

Ulsan, , South Korea

Site Status

Yonsei University, Wonju Hospital

Wŏnju, , South Korea

Site Status

Countries

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South Korea

Other Identifiers

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PEGASYS100:80

Identifier Type: -

Identifier Source: org_study_id

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