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Chronic Hepatitis BPhase 1/2NCT00895596

Safety and Efficacy Study of LB80380 in the Patients With Lamivudine-Refractory Chronic Hepatitis B

A Phase 1/2 study testing LB80380 in people with Chronic Hepatitis B, run by LG Life Sciences at 4 sites in 2 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of the study is to investigate the safety and the antiviral activity of ascending multiple oral doses of LB80380 for 12 weeks in adults with lamivudine-refractory chronic hepatitis B infection. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Chronic Hepatitis B
What is being tested?
LB80380
Could I receive a placebo?
No, everyone receives an active treatment
How many people
65 participants
Where
4 sitesin 2 countries
Study dates
Mar 2004to Dec 2007
Phase
Phase 1/2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Compensated chronic hepatitis B patient
  • Presence of serum HBsAg for more than 6 months.
  • Presence of HBeAg for more than 1 month with compensated liver disease
  • Confirmation of YMDD mutants (M552V, M552I and its related double mutant at L528M) by genotyping of the YMDD motif using line probe assay (INNO-LiPA HBV DR assay)
  • Screening HBV DNA value higher than or equal to 1,000,000 copies/mL (measured by the COBAS Amplicor HBV Monitor™ assay)
  • Screening ALT value between 1.5 and 10 x ULN

Who cannot join

  • Co-infection with hepatitis C or D virus (HCV or HDV) or HIV
  • Pregnancy or breast-feeding
  • Previous treatment with nucleoside analogue or any other treatment for HBV except for lamivudine within 6 months prior to study entry
  • Treatment with immunomodulatory agent or corticosteroids within 6 months prior to study entry.
  • De-compensated liver disease
  • Screening alpha-fetoprotein (AFP) value > 20 ng/mL, and a follow-up ultrasonography performed prior to baseline shows findings indicative of HCC.
  • Presence of anti-HBs at screening

Trial locations and contacts

4 sites in 2 countries.

4 sites in 2 countries

South Korea3 sites
  • Korea University Medical Center

    Seoul

  • Severance Hospital of Yonsei University

    Seoul

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

    Seoul

Other trials in South Korea

China1 site
  • Queen Mary Hospital

    Hong Kong

Other trials in China

About this study

Official title: A PhaseII, Open-Label, Multinational, Multi-Centre, Sequential Group, Dose-Escalation Study to Assess the Safety and Antiviral Activity of LB80380 for 12 Weeks in Patients With Lamivudine-Refractory Chronic Hepatitis B

The purpose of the study is to investigate the safety and the antiviral activity of ascending multiple oral doses of LB80380 for 12 weeks in adults with lamivudine-refractory chronic hepatitis B infection.

Read the detailed description

LB80380, an oral prodrug, is a promising candidate nucleoside analogue with antiviral activity against wild-type HBV. LB80380 is undergoing clinical development by LG Life Sciences for use in the treatment of chronic HBV infection and for treatment of lamivudine-resistant disease.

In this study, the treatment period was divided into two parts: a 4-week treatment period with dose escalation assessment (Part 1), followed by an 8-week extension period (Part 2).

During Part 1, patients received LB80380 and LVD 100 mg once daily for 4 weeks. Each patient was then given only LB80380 for an additional 8 weeks (Part 2) unless dose-limiting toxicity (DLT) was observed during Part 1. At each dose level, all patients were to complete at least Part 1 of the treatment period before enrolment into the next Dose Group could commence. Dose escalation to the next group was not to be initiated if more than two patients experienced DLT during Part 1 in the previous Dose Group. Additionally, patients enrolled in LB80380 150mg and 240mg groups who agreed to participate in the pharmacokinetic (PK) analyses visited the study site the day before Week 12 for blood sampling. Follow-up period was 24 weeks, and patients were treated with adefovir dipivoxil during the follow-up period. During the study, patients were evaluated for changes from baseline in serum HBV DNA. Safety was evaluated on the basis of occurrence of AEs and changes from baseline in clinical laboratory parameters, physical examination findings, and vital signs.

Being tested
LB80380
Keywords
Chronic hepatitis B, Lamivudine resistant, YMDD mutant type
Medical subject headings
Hepatitis B, Chronic

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • LB80380Drug

    Total treatment period: 12 weeks, followed by 24 weeks of treatment with adefovir dipivoxil 10mg

Study groups in NCT00895596
Study groupRoleWhat they receive
LB80380 30mgExperimentalLB80380 30mg
Receives: Drug: LB80380
LB80380 60mgExperimentalLB80380 60mg
Receives: Drug: LB80380
LB80380 90mg,ExperimentalLB80380 90mg
Receives: Drug: LB80380
LB80380 150mgExperimentalLB80380 150mg
Receives: Drug: LB80380
LB80380 240mgExperimentalLB80380 240mg
Receives: Drug: LB80380

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Mean serum HBV DNA level (log10) reduction from the baseline at Week 12

    Measured: Week 12

Secondary outcomes (1)
  1. Proportion of patients with HBeAg seroconversion at 12 weeks Proportion of patients with HBsAg seroconversion at 12 weeks Proportion of patients with ALT normalization at 12 weeks Safety assessment during the whole study period

    Measured: Week 12

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted8 May 2009 (estimated)
  2. Study startMar 2004
  3. Primary completionAug 2006
  4. Study completionDec 2007

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Non-randomised
Masking
None (open label)
Enrolment
65 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00895596
Sponsor's protocol ID
BVCL004
Status last verified
May 2009
First submitted
7 May 2009
Last updated
8 May 2009
Results posted
No
Data monitoring committee
No

Publications

  • Yuen MF, Han KH, Um SH, Yoon SK, Kim HR, Kim J, Kim CR, Lai CL. Antiviral activity and safety of LB80380 in hepatitis B e antigen-positive chronic hepatitis B patients with lamivudine-resistant disease. Hepatology. 2010 Mar;51(3):767-76. doi: 10.1002/hep.23462.

    PubMed 20091678

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing LB80380 in people with Chronic Hepatitis B, run by LG Life Sciences at 4 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 8 May 2009. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites in South Korea, China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Mean serum HBV DNA level (log10) reduction from the baseline at Week 12 (time frame: Week 12). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00895596, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 May 2009.

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