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

NCT ID: NCT00895596

Last Updated: 2009-05-08

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE1/PHASE2
• Total Enrollment: 65 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2004-03-31
• Study Completion Date: 2007-12-31

Brief 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.

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.

Conditions

Chronic Hepatitis B

Study Design

• Allocation Method: NON_RANDOMIZED
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

LB80380 30mg

LB80380 30mg

Group Type: EXPERIMENTAL

LB80380

Intervention Type: DRUG

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

LB80380 60mg

LB80380 60mg

Group Type: EXPERIMENTAL

LB80380

Intervention Type: DRUG

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

LB80380 90mg,

LB80380 90mg

Group Type: EXPERIMENTAL

LB80380

Intervention Type: DRUG

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

LB80380 150mg

LB80380 150mg

Group Type: EXPERIMENTAL

LB80380

Intervention Type: DRUG

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

LB80380 240mg

LB80380 240mg

Group Type: EXPERIMENTAL

LB80380

Intervention Type: DRUG

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

Interventions

LB80380

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

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

• 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

Exclusion Criteria

• 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

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 65 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

LG Life Sciences

INDUSTRY

Sponsor Role: lead

Principal Investigators

Ching-Lung Lai, Dr

Role: PRINCIPAL_INVESTIGATOR

Queen Mary Hospital, Hong Kong

Locations

Queen Mary Hospital

Hong Kong, , China

Korea University Medical Center

Seoul, , South Korea

Severance Hospital of Yonsei University

Seoul, , South Korea

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

Seoul, , South Korea

Countries

China; South Korea

References

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.

Reference Type: DERIVED

PMID: 20091678 (View on PubMed)

Other Identifiers

BVCL004

Identifier Type: -

Identifier Source: org_study_id