A Randomized Study Comparing Lamivudine Versus Adefovir Dipivoxil for Prevention of zHBV Reactivation in HBsAg Seropositive Patients Undergoing Cytotoxic Chemotherapy

July 6, 2010 updated by: Hospital Authority, Hong Kong

Liver diseases due to hepatitis B reactivation are serious causes of morbidity and mortality in hepatitis B infected patients treated with chemotherapy. We have previously shown that with pre-emptive use of lamivudine, one can drastically reduce liver-related morbidity and mortality in such patients. However, due to the development of hepatitis B virus resistance to lamivudine, some of these hepatitis B infected patients still develop hepatitis. This is a research study aiming to compare the use of adefovir dipivoxil to lamivudine in hepatitis B infected patients treated with chemotherapy. Both of these drugs have been approved for the treatment of the hepatitis B infection in the United States, European Union and Hong Kong.

All patients who were recruited in this study will receive study medication, either lamivudine 100 mg daily or adefovir dipivoxil 10 mg daily to cover the entire period of chemotherapy for 72 weeks. All patients will be follow-up for an additional 24 weeks thereafter. Altogether, 70 subjects will be recruited from Queen Mary Hospital, Hong Kong SAR.

This is an open-label study, which means that the patients and the study doctor will know which treatment the subjects are assigned into. If a subject decides to take part in the study and is found eligible, he/she will be randomly (like flipping of coin) assigned to one of the following dose groups:

Lamivudine (100 mg) tablet Adefovir dipivoxil (10 mg) tablet

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Anticipated)

70

Phase

  • Not Applicable

Contacts and Locations

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

Study Contact

  • Name: Chee-Kin Hui, Dr
  • Phone Number: (852) 2818 4300
  • Email: ckh23@hku.hk

Study Locations

  • China
      • Hong Kong, China
        • Recruiting
        • Queen Mary Hospital
        • Sub-Investigator:
          • Raymond Liang, Prof
        • Sub-Investigator:
          • Yok-Lam Kwong, Prof
        • Sub-Investigator:
          • Wing-Yan Au, Dr
        • Sub-Investigator:
          • Chor-sang Chim, Dr
        • Sub-Investigator:
          • Louis Chow, Dr
        • Sub-Investigator:
          • Chee-Kin Hui, Dr

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 to 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

N/A

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • HBsAg+, nucleoside/nucleotide analogue naïve, malignant disease for iv chemotherapy

Exclusion Criteria:

  • HCV+ HDV+

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: Single Group Assignment
  • Masking: None (Open Label)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
To compare the development of viral resistance to anti-viral therapy: lamivudine versus adefovir dipivoxil in immunosuppressed patients
Time Frame: 72 weeks
72 weeks

Secondary Outcome Measures

Outcome Measure
Time Frame
To assess the safety of adefovir dipivoxil in HBV seropositive patients who are planned to undergo chemotherapy, as compared to lamivudine.
Time Frame: 72 weeks
72 weeks

Collaborators and Investigators

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

Sponsor

Hospital Authority, Hong Kong

Collaborators

The University of Hong Kong

Investigators

  • Principal Investigator: George Lau, Dr, Department of Medicine, Queen Mary Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

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

Study Completion (Anticipated)

December 1, 2007

Study Registration Dates

First Submitted

June 20, 2007

First Submitted That Met QC Criteria

June 20, 2007

First Posted (Estimate)

June 21, 2007

Study Record Updates

Last Update Posted (Estimate)

July 7, 2010

Last Update Submitted That Met QC Criteria

July 6, 2010

Last Verified

July 1, 2010

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • UW 04-315 T/637
  • HARECCTR0500002

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.

Clinical Trials on Hepatitis B

Clinical Trials on lamivudine

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Denmark

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

3
Subscribe