Efficacy of Clevudine Plus Lamivudine for Lamivudine-resistant Chronic Hepatitis B Patients

June 22, 2011 updated by: Inje University

A Multicenter, Randomized, Controlled Tial of Combination Therapy for Lamivudine-resistant Chronic Hepatitis B Patient: Comparing Clevudine Plus Adefovir With Lamivudine Plus Adefovir

The purpose of this study is to determine the optimal antiviral treatment for lamivudine resistant hepatitis B patients.

Study Overview

Status

Terminated

Conditions

Intervention / Treatment

Detailed Description

Lamivudine with adefovir combination therapy has been known as effective antiviral therapy for lamivudine resistant chronic hepatitis B patients. It is superior to adefovir monotherapy since the incidence of viral breakthrough of combination therapy used to be less than that of adefovir monotherapy in lamivudine resistant chronic hepatitis B patients. Clevudine, which is being marketed in Korea, is a nucleoside analogue of the unnatural beta-L configuration that has potent activity against HBV. It has demonstrated potent antiviral efficacy and significant biochemical improvement after 24 weeks of therapy. We hypothesized that clevudine plus adefovir combination therapy for lamivudine resistant patients might be as effective as the lamivudine plus adefovir combination therapy.

In detail, we designed to perform this clinical study comparing the combination of clevudine and adefovir with lamivudine plus adefovir in lamivudine resistant chronic hepatitis B patient. Total treatment duration of both groups will be 12 months, and compare the efficacy of antiviral effects of these drugs.

Study Type

Interventional

Enrollment (Actual)

30

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Korea, Republic of
    • Gyunggi
      • Goyang, Gyunggi, Korea, Republic of, 411-706
        • Ilsanpaik hospital

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

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • HBsAg positive and anti-HBs negative more than 6 months
  • YMDD mutation (+)during lamivudine therapy
  • Serum ALT more than two times upper normal value

Exclusion Criteria:

  • HAV IgM Ab + and/or HCV Ab+ and/or HDV Ab and/or HIV Av+
  • The sign of decompensated liver disease
  • Pregnant or lactating woman
  • The history of hemoglobinopathy, autoimmune hepatitis, alcoholic liver disease
  • Hemoglobin less than 8 g/dL (male), 7.5g/dL (female) or neutrophil count less than 1500/mm3 or platelet count less than 50,000/mm3
  • Serum creatinine more than 1.5 times upper normal limit value
  • The sign of malignancy or suggestive of malignancy or the history of malignancy, the recurrence rate within 2 years of which is more than 20%

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
Active Comparator: Lamivudine plus adefovir
Drug: adefovir
adefovir 10mg
Other Names:
  • Hepsera
Drug: lamivudine
lamivudine 100mg
Other Names:
  • Zeffix
Active Comparator: Clevudine plus adefovir
Drug: adefovir
adefovir 10mg
Other Names:
  • Hepsera
Drug: clevudine
clevudine 30mg
Other Names:
  • Levovir

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
HBV DNA titer < 300 copies/mL
Time Frame: 48 week
48 week

Secondary Outcome Measures

Outcome Measure
Time Frame
Normalization of serum ALT, loss of HBeAg and HBsAg, incidence of adefovir resistance
Time Frame: 48 week
48 week

Collaborators and Investigators

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

Sponsor

Inje University

Collaborators

Bukwang Pharmaceutical

Investigators

  • Principal Investigator: June Sung Lee, M.D., Department of Internal Medicine, Ilsanpaik hospital, Inje Univeristy, 2240 Daewha-dong, Ilsanseo-gu, Goyang, Gyunggi, Korea, 411-706

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

December 1, 2008

Primary Completion (Actual)

June 1, 2010

Study Completion (Actual)

November 1, 2010

Study Registration Dates

First Submitted

November 25, 2008

First Submitted That Met QC Criteria

November 25, 2008

First Posted (Estimate)

November 26, 2008

Study Record Updates

Last Update Posted (Estimate)

June 23, 2011

Last Update Submitted That Met QC Criteria

June 22, 2011

Last Verified

June 1, 2011

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • IB-0809-055

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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