Lamivudine(LAM) Good Responder Study (LAMGR)

September 12, 2016 updated by: ViiV Healthcare

A Retrospective Cohort Study to Evaluate the Rate of Good Responses to Lamivudine (LAM) Treatment in naïve Chronic Hepatitis B (CHB) Patients With Certain Pre-treatment Characteristics

This is to evaluate the proportion of subjects who show good responses to LAM treatment in Korea.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

This is to evaluate the proportion of subjects who show good responses to LAM treatment such as HBV DNA negativity, HBV DNA less than 4 log, no resistant mutation, HBeAg seroconversion and normalization of ALT in naïve CHB patients with certain pre-treatment characteristics, i.e. HBV DNA less than 9log copies per ml and ALT more than 2 times ULN in HBeAg positive subjects, HBV DNA less than 7log copies per ml and elevated ALT in HBeAg negative subjects.

Study Type

Observational

Enrollment (Actual)

1

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

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

Sampling Method

Probability Sample

Study Population

CHB patients who started LAM as an initial antiviral treatment at least 5 years prior to this investigation in General Hospital

Description

Inclusion Criteria:

  1. CHB or liver cirrhosis due to Hepatitis B virus who had started LAM between Jan 1, 2003 and Dec 31, 2004 and maintained LAM at least 6 months
  2. HBsAg positive at least for 6 months at the beginning of observation
  3. HBV DNA positive before LAM administration
  4. Subjects with certain pre-treatment laboratory findings as follows; HBV DNA less than 9log copies per ml and ALT more than 2 times ULN in HBeAg positive patients, HBV DNA less than 7log copies per ml and elevated ALT in HBeAg negative patients

Exclusion Criteria:

  1. Documented co-infection with HCV, HIV at the beginning of LAM treatment
  2. Decompensated liver cirrhosis at the beginning of LAM treatment
  3. HCC at the beginning of LAM treatment

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

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
CHB patients who started LAM as an initial antiviral treatment
CHB patients who started LAM as an initial antiviral treatment at least 5 years prior to this investigation
Other: No intervention
This study is retrospective chart review

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Proportion of subjects showing HBV DNA negativity at 5 years of LAM treatment
Time Frame: 5years
5years

Secondary Outcome Measures

Outcome Measure
Time Frame
Proportion of subjects showing HBV DNA negativity during first 4 years of LAM treatment
Time Frame: 4 years
4 years
Proportion of subjects showing HBV DNA less than 4 log copies per ml during 5 years of LAM treatment
Time Frame: 5 years
5 years
Cumulative proportion of subjects showing HBeAg seroconversion during 5 years of LAM treatment
Time Frame: 5 years
5 years
Cumulative proportion of subjects showing HBeAg loss during 5 years of LAM treatment
Time Frame: 5 years
5 years
Proportion of subjects showing ALT normalization during 5 years of LAM treatment
Time Frame: 5 years
5 years
Cumulative proportion of subjects showing resistant mutation during 5 years of LAM treatment
Time Frame: 5 years
5 years

Collaborators and Investigators

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

Sponsor

ViiV Healthcare

Collaborators

GlaxoSmithKline

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

August 1, 2010

Primary Completion (Actual)

June 1, 2011

Study Completion (Actual)

June 1, 2011

Study Registration Dates

First Submitted

May 20, 2010

First Submitted That Met QC Criteria

May 21, 2010

First Posted (Estimate)

May 24, 2010

Study Record Updates

Last Update Posted (Estimate)

September 13, 2016

Last Update Submitted That Met QC Criteria

September 12, 2016

Last Verified

September 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 113973

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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