Chronic Hepatitis BPhase 3NCT00142298
Telbivudine in Adults Previously Treated in Idenix-Sponsored Telbivudine Studies
A Phase 3 study testing Telbivudine (LdT) in people with Chronic Hepatitis B, run by Novartis Pharmaceuticals at 39 sites in 21 countries.
Trial summary
This trial is being conducted as an open-label, extended-term study for patients with chronic hepatitis B who have previously completed an Idenix-sponsored trial with telbivudine. Read more about this study
- Who is it for?
- Ages 16 to 70 years
- Conditions the study is for
- Chronic Hepatitis B
- What is being tested?
- Telbivudine (LdT)
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 1,869 participants
- Where
- 39 sitesin 21 countries
- Study dates
- Mar 2005to Nov 2009
- Phase
- Phase 3
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
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 16 to 70 years
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- Patient completed a previous qualifying Idenix-Sponsored trial with telbivudine
- Patient was not discontinued from previous Idenix-Sponsored study
- Other protocol-defined inclusion criteria may apply
Who cannot join
- Patient is pregnant or breastfeeding
- Patient is co-infected with hepatitis C, hepatitis D or HIV
- Other protocol-defined exclusion criteria may apply
Trial locations and contacts
39 sites in 21 countries.
39 sites in 21 countries
United States19 sites
Novartis Investigational Site
Ann Arbor, Michigan, 48104
Novartis Investigational Site
Atlanta, Georgia
Novartis Investigational Site
Boston, Massachusetts, 02215
Novartis Investigational Site
Chapel Hill, North Carolina, 27599-7211
Novartis Investigational Site
Chicago, Illinois, 60176
Novartis Investigational Site
Honolulu, Hawaii, 96812
Novartis Investigational Site
Houston, Texas, 77007
Novartis Investigational Site
Los Angeles, California, 90001
Novartis Investigational Site
Los Angeles, California, 90073
Novartis Investigational Site
New York, New York, 10029
Novartis Investigational Site
Pasadena, California, 91103
Novartis Investigational Site
Philadelphia, Pennsylvania, 19103
Novartis Investigational Site
Phoenix, Arizona, 85001
Novartis Investigational Site
Richmond, Virginia, 23220
Novartis Investigational Site
Sacramento, California
Novartis Investigational Site
San Diego, California, 91945
Novartis Investigational Site
San Francisco, California, 94115
Novartis Investigational Site
Sarasota, Florida
Novartis Investigational Site
St Louis, Missouri, 63143
Turkey (Türkiye)1 site
Novartis Investigational Site
Istanbul, TR-34353
About this study
Official title: An Open Label Trial of Telbivudine (LdT) in Adults With Chronic Hepatitis B Previously Treated in Idenix-Sponsored Telbivudine Studies
This trial is being conducted as an open-label, extended-term study for patients with chronic hepatitis B who have previously completed an Idenix-sponsored trial with telbivudine.
Read the detailed description
Patients from 6 feeder trials could be eligible to enter current study CLDT600A2303 ( NCT00142298) if they met inclusion/exclusion criteria. The feeder studies were as follows:
- CLDT600A2302 (NV-02B-007)(NCT00057265), the GLOBE study, was a Phase III, randomized, doubleblind,multi-center, 104-week, pivotal study of telbivudine vs. lamivudine in treatment of naïve patients with compensated chronic hepatitis B. CLDT600A2302/NV-02B-007 (NCT00057265) is hereafter referred to as study 2302.
- NV-02B-015 (NCT00131742) was a Phase III, randomized, double-blind, 104-week study comparing the efficacy and safety of telbivudine (600 mg/day) to lamivudine (100 mg/day) in treatment of naïve Chinese patients with compensated chronic hepatitis B. NV-02B-015 (NCT00131742) is hereafter referred to as study 015.
- CLDT600A2301 (NV-02B-011)(NCT00076336) was a Phase III, randomized double-blind, multi-center, 104-week, pivotal study of telbivudine (600 mg/day) vs. lamivudine (100 mg/day) in treatment-naïve adults with decompensated chronic hepatitis B. CLDT600A2301/NV-02B-011 (NCT00076336) is hereafter referred to as study 2301.
- NV-02B-010 (NCT00124241) was a Phase IIb, 104-week extension study of telbivudine, lamivudine or the combination of both agents in patients with chronic hepatitis B who had completed the core study NV-02B-003 (NCT00124241). NV-02B-010 (NCT00124241) is hereafter referred to as study 010.
NV-02B-003 (NCT00124241) was a Phase IIa, 52-week study of telbivudine, lamivudine or the combination of both agents in patients with HBeAg-positive chronic hepatitis B.
- CLDT600A2401 (NV-02B-018) (NCT00115245) was a Phase IIIb, randomized, open-label, multi-center,52-week study of telbivudine vs. adefovir dipivoxil for 24 weeks then a switch to telbivudine for another 28 weeks in treatment-naïve patients with compensated chronic hepatitis B. CLDT600A2401/NV-02B-018 (NCT00115245) is hereafter referred to as study 2401.
- CLDT600A2402 (NV-02B-019) (NCT00132652) was a Phase IIIb, randomized, open-label, multi-center, 52-week study of switching lamivudine to telbivudine vs. continued on lamivudine treatment in adults with compensated chronic hepatitis B who were previously treated with lamivudine for 3-12 months. CLDT600A2402/NV-02-019 (NCT00132652) is hereafter referred to as study 2402.
PATIENT GROUPS:
GROUP A: Patients with HBeAg (+) or HBeAg (-) compensated chronic hepatitis B who did not discontinue treatment in their previous study due to an efficacy response and required further treatment or who had met the criteria for discontinuation of treatment in their previous study due to efficacy, but were being maintained on study drug by the principal investigator. For patients treated with telbivudine who enrolled into Group A from studies 2302 and 015, the total telbivudine treatment time (starting from feeder study baseline to the end of the on-treatment period in study 2303) was 208 weeks. For patients treated with lamivudine in studies 2302/015 and enrolled into group A and for all patients in group A from studies 2401/2402/010, the total telbivudine treatment time was 104 weeks.
GROUP B: Patients with HBeAg (+) or HBeAg (-) decompensated chronic hepatitis B who did not discontinue treatment in their previous study due to an efficacy response and required further treatment. Patients treated with telbivudine in study 2301 were enrolled to group B and the total telbivudine treatment time (starting from feeder study baseline to the end of the on-treatment period in study 2303) was 208 weeks. For patients treated with lamivudine in study 2301 and enrolled into group B, the total telbivudine treatment time was 104 weeks.
GROUP C: Patients with either compensated or decompensated chronic hepatitis B, who had discontinued study drug treatment in their previous Idenix-sponsored study due to an efficacy response as recommended by protocol. Patients who were eligible for treatment discontinuation in their previous study but who were, at the principal investigators discretion, continued on study therapy, were eligible to enter this study in Group C provided their treatment was discontinued at their last visit of the previous study. The feeder studies for group C of current study were study 2302/015, 2401, 2402, and 010. For patients who enrolled into group C, total telbivudine treatment time was 104 weeks starting from the baseline of the feeder studies to their last visit of the feeder studies. Patients were enrolled to current study (study 2303) for off-treatment follow-up after the treatment discontinuation due to efficacy. Hence, patients did not receive any study drug except in case of patients who relapsed and reinitiated treatment.
- Conditions
- Chronic Hepatitis B
- Being tested
- Telbivudine (LdT)
- 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.
Telbivudine (LdT)Drug
Also called Sebivo®/Tyzeka®, LdT600
Telbivudine was to be supplied as white to off-white, oval, bi-convex tablets for the 200 mg tablets and white to off-white ovaloid, slightly curved, beveled edges, film coated tablets for the 600 mg tablets. Study drug (600 mg) was to be self-administered by patients orally (p.o.) in a once daily regimen for 104 weeks; for study consistency, the daily dose had to be taken at the same time each day, with or without food.
| Study group | Role | What they receive |
|---|---|---|
| telbivudine | Experimental | telbivudine 600 mg p.o. daily for 104 weeks. Receives: Drug: Telbivudine (LdT) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Percentage of Participants Who Maintained Therapeutic Response [Group A: LdT Pool 2302/015]
The maintained therapeutic response is defined as hepatitis B virus (HBV) DNA < 5 log10 copies/mL and either hepatitis Be antigen (HBeAg) loss or alanine aminotransferase (ALT) normalized. HBeAg loss is loss of detectable serum HBeAg in a patient who was HBeAg-positive at feeder baseline. ALT normalized is defined as ALT within normal limits for a patient with an elevated ALT level (>1.0 × ULN) at either the feeder baseline or feeder screening visit. All efficacy data were analyzed separately for HBeAg-positive and HBeAg-negative patients.
Measured: 156 weeks, 208 weeks (from feeder study baseline)
Percentage of Participants Who Maintained Therapeutic Response [Group A: LAM Pool 2302/015]
The maintained therapeutic response is defined as hepatitis B virus (HBV) DNA < 5 log10 copies/mL and either hepatitis Be antigen (HBeAg) loss or alanine aminotransferase (ALT) normalized. HBeAg loss is loss of detectable serum HBeAg in a patient who was HBeAg-positive at feeder baseline. ALT normalized is defined as ALT within normal limits for a patient with an elevated ALT level (>1.0 × ULN) at either the feeder baseline or feeder screening visit. All efficacy data were analyzed separately for HBeAg-positive and HBeAg-negative patients.
Measured: 52 weeks, 104 weeks
Percentage of Participants Who Maintained Therapeutic Response [Group A: Feeder Studies 2401/2402/010]
The maintained therapeutic response is defined as hepatitis B virus (HBV) DNA < 5 log10 copies/mL and either hepatitis Be antigen (HBeAg) loss or alanine aminotransferase (ALT) normalized. HBeAg loss is loss of detectable serum HBeAg in a patient who was HBeAg-positive at feeder baseline. ALT normalized is defined as ALT within normal limits for a patient with an elevated ALT level (>1.0 × ULN) at either the feeder baseline or feeder screening visit. All efficacy data were analyzed separately for HBeAg-positive and HBeAg-negative patients.
Measured: 52 weeks, 104 weeks
Percentage of Participants With Maintained Clinical Response [Group B: LdT 2301]
Maintained clinical response is defined as achievement of serum HBV DNA < 4 log10 copies/mL, normal serum ALT level and improvement or stabilization in Child-Turcotte-Pugh (CTP) score. Total CTP score ranges from 5 to 15; higher scores indicate liver impairment. Improvement is defined as a 2-point or greater reduction in CTP score, and stabilization is defined as a less than 2-point change in CTP score, compared to the patient's baseline value. Analysis was done on the overall per protocol (PP) population and separately for the HBeAg-positive and HBeAg-negative subpopulation.
Measured: 156 weeks, 208 weeks (from feeder study baseline)
Percentage of Participants With Maintained Clinical Response [Group B: LAM 2301]
Maintained clinical response is defined as achievement of serum HBV DNA < 4 log10 copies/mL, normal serum ALT level and improvement or stabilization in Child-Turcotte-Pugh (CTP) score. Total CTP score ranges from 5 to 15; higher scores indicate liver impairment. Improvement is defined as a 2-point or greater reduction in CTP score, and stabilization is defined as a less than 2-point change in CTP score, compared to the patient's baseline value. Analysis was done on the overall per protocol (PP) population and separately for the HBeAg-positive and HBeAg-negative subpopulation.
Measured: 52 weeks,104 weeks
Percentage of Participants With Sustained Therapeutic Response [Group C: LdT Pool and LAM Pool (2302/015)]
The primary efficacy endpoint for Group C patients was the percentage of patients with sustained therapeutic response (defined as HBV DNA < 5 log10 copies/mL and either HBeAg loss or ALT normalized) at Weeks 52 and 104 of off-treatment follow-up. HBeAg loss is loss of detectable serum HBeAg in a patient who was HBeAg-positive at feeder baseline. ALT normalized is ALT within normal limits for a patient with an elevated ALT level (>1.0 × ULN) at either the feeder baseline or feeder screening visit. All efficacy data were analyzed separately for HBeAg-positive and HBeAg-negative patients.
Measured: 52 weeks,104 weeks
Percentage of Participants With Sustained Therapeutic Response [Group C: Other Feeder Studies]
The primary efficacy endpoint for Group C (other feeder studies) was the percentage of patients with sustained therapeutic response (defined as HBV DNA < 5 log10 copies/mL and either HBeAg loss or ALT normalized) at Weeks 52 and 104 of off-treatment follow-up.
Patients were enrolled for off-treatment follow-up after the treatment discontinuation due to efficacy at their last visit of the feeder studies. Hence, patients did not receive study drug except in case of patients who relapsed and reinitiated treatment. No statistical summary was performed , only patient listing was generated.
Measured: 52 weeks,104 weeks
Secondary outcomes (4)
To Longitudinally Assess the Longer-term Antiviral Efficacy Achieved With Telbivudine Treatment
Measured: 52 weeks, 104 weeks, 156 weeks, 208 weeks
To Longitudinally Assess the Clinical Efficacy of Longer-term Treatment With Telbivudine
Measured: 52 weeks, 104 weeks, 156 weeks, 208 weeks
To Longitudinally Assess the Durability of HBeAg Responses Achieved With Telbivudine Treatment and Other Previous Treatments in Patients
Measured: 52 weeks, 104 weeks, 156 weeks, 208 weeks
To Determine the Longitudinal Frequency of Virologic Breakthrough and Characterize the Associated Mutations in the HBV Polymerase Gene in HBV DNA Amplified From Sera of Patients With Virologic Breakthrough
Measured: 52 weeks, 104 weeks, 156 weeks, 208 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted2 Sep 2005 (estimated)
- Study startMar 2005
- Primary completionNov 2009
- Study completionNov 2009
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Chronic Hepatitis BStudies of the same condition, open and under way.
- More trials run by Novartis PharmaceuticalsThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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 3
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 1,869 participants (actual)
Sponsor and investigators
- Lead sponsor
- Novartis Pharmaceuticals
- Sponsor type
- Industry (pharma, biotech, devices)
- Collaborators
- Merck Sharp & Dohme LLC
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00142298
- Sponsor's protocol ID
- CLDT600A2303
- Other IDs
- NV-02B-022
- Status last verified
- Aug 2020
- First submitted
- 31 Aug 2005
- Last updated
- 21 Aug 2020
- Results posted
- Yes, on ClinicalTrials.gov
- Individual data sharing
- Undecided: Novartis is committed to sharing access to patient-level data and supporting clinical documents from eligible studies with qualified external researchers. Requests are reviewed and approved by an independent review panel on the basis of scientific merit. All data provided is anonymized to protect the privacy of patients who have participated in the trial in line with applicable laws and regulations. This trial data availability is according to the criteria and process described on www.clinicalstudydatarequest.com
Publications
Hsu CW, Chao YC, Lee CM, Chang TT, Chen YC. Efficacy of telbivudine in Taiwanese chronic hepatitis B patients compared with GLOBE extension study and predicting treatment outcome by HBV DNA kinetics at week 24. BMC Gastroenterol. 2012 Dec 13;12:178. doi: 10.1186/1471-230X-12-178.
PubMed 23234302
Study at a glance
From the registry record, last updated by the sponsor on 21 Aug 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- An Open Label Trial of Telbivudine (LdT) in Adults With Chronic Hepatitis B Previously Treated in Idenix-Sponsored Telbivudine Studies
- ClinicalTrials.gov ID
- NCT00142298
- Acronym / sponsor ID
- CLDT600A2303
- Conditions
- Chronic Hepatitis B
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 1,869 participants (actual)
- Lead sponsor
- Novartis PharmaceuticalsIndustry (pharma, biotech, devices)
- Collaborators
- Merck Sharp & Dohme LLC
- Study start
- Mar 2005
- Primary completion
- Nov 2009 (actual)
- Study completion
- Nov 2009 (actual)
- First posted
- 2 Sep 2005 (estimated)
- Results
- Posted 25 Jul 2011
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This trial is being conducted as an open-label, extended-term study for patients with chronic hepatitis B who have previously completed an Idenix-sponsored trial with telbivudine.
Detailed description
Patients from 6 feeder trials could be eligible to enter current study CLDT600A2303 ( NCT00142298) if they met inclusion/exclusion criteria. The feeder studies were as follows:
- CLDT600A2302 (NV-02B-007)(NCT00057265), the GLOBE study, was a Phase III, randomized, doubleblind,multi-center, 104-week, pivotal study of telbivudine vs. lamivudine in treatment of naïve patients with compensated chronic hepatitis B. CLDT600A2302/NV-02B-007 (NCT00057265) is hereafter referred to as study 2302.
- NV-02B-015 (NCT00131742) was a Phase III, randomized, double-blind, 104-week study comparing the efficacy and safety of telbivudine (600 mg/day) to lamivudine (100 mg/day) in treatment of naïve Chinese patients with compensated chronic hepatitis B. NV-02B-015 (NCT00131742) is hereafter referred to as study 015.
- CLDT600A2301 (NV-02B-011)(NCT00076336) was a Phase III, randomized double-blind, multi-center, 104-week, pivotal study of telbivudine (600 mg/day) vs. lamivudine (100 mg/day) in treatment-naïve adults with decompensated chronic hepatitis B. CLDT600A2301/NV-02B-011 (NCT00076336) is hereafter referred to as study 2301.
- NV-02B-010 (NCT00124241) was a Phase IIb, 104-week extension study of telbivudine, lamivudine or the combination of both agents in patients with chronic hepatitis B who had completed the core study NV-02B-003 (NCT00124241). NV-02B-010 (NCT00124241) is hereafter referred to as study 010.
NV-02B-003 (NCT00124241) was a Phase IIa, 52-week study of telbivudine, lamivudine or the combination of both agents in patients with HBeAg-positive chronic hepatitis B.
- CLDT600A2401 (NV-02B-018) (NCT00115245) was a Phase IIIb, randomized, open-label, multi-center,52-week study of telbivudine vs. adefovir dipivoxil for 24 weeks then a switch to telbivudine for another 28 weeks in treatment-naïve patients with compensated chronic hepatitis B. CLDT600A2401/NV-02B-018 (NCT00115245) is hereafter referred to as study 2401.
- CLDT600A2402 (NV-02B-019) (NCT00132652) was a Phase IIIb, randomized, open-label, multi-center, 52-week study of switching lamivudine to telbivudine vs. continued on lamivudine treatment in adults with compensated chronic hepatitis B who were previously treated with lamivudine for 3-12 months. CLDT600A2402/NV-02-019 (NCT00132652) is hereafter referred to as study 2402.
PATIENT GROUPS:
GROUP A: Patients with HBeAg (+) or HBeAg (-) compensated chronic hepatitis B who did not discontinue treatment in their previous study due to an efficacy response and required further treatment or who had met the criteria for discontinuation of treatment in their previous study due to efficacy, but were being maintained on study drug by the principal investigator. For patients treated with telbivudine who enrolled into Group A from studies 2302 and 015, the total telbivudine treatment time (starting from feeder study baseline to the end of the on-treatment period in study 2303) was 208 weeks. For patients treated with lamivudine in studies 2302/015 and enrolled into group A and for all patients in group A from studies 2401/2402/010, the total telbivudine treatment time was 104 weeks.
GROUP B: Patients with HBeAg (+) or HBeAg (-) decompensated chronic hepatitis B who did not discontinue treatment in their previous study due to an efficacy response and required further treatment. Patients treated with telbivudine in study 2301 were enrolled to group B and the total telbivudine treatment time (starting from feeder study baseline to the end of the on-treatment period in study 2303) was 208 weeks. For patients treated with lamivudine in study 2301 and enrolled into group B, the total telbivudine treatment time was 104 weeks.
GROUP C: Patients with either compensated or decompensated chronic hepatitis B, who had discontinued study drug treatment in their previous Idenix-sponsored study due to an efficacy response as recommended by protocol. Patients who were eligible for treatment discontinuation in their previous study but who were, at the principal investigators discretion, continued on study therapy, were eligible to enter this study in Group C provided their treatment was discontinued at their last visit of the previous study. The feeder studies for group C of current study were study 2302/015, 2401, 2402, and 010. For patients who enrolled into group C, total telbivudine treatment time was 104 weeks starting from the baseline of the feeder studies to their last visit of the feeder studies. Patients were enrolled to current study (study 2303) for off-treatment follow-up after the treatment discontinuation due to efficacy. Hence, patients did not receive any study drug except in case of patients who relapsed and reinitiated treatment.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| telbivudine | Experimental | Drug: Telbivudine (LdT)telbivudine 600 mg p.o. daily for 104 weeks. |
Who may qualify
- Ages
- 16 to 70 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (3 listed)
- Patient completed a previous qualifying Idenix-Sponsored trial with telbivudine
- Patient was not discontinued from previous Idenix-Sponsored study
- Other protocol-defined inclusion criteria may apply
Key exclusion criteria (3 listed)
- Patient is pregnant or breastfeeding
- Patient is co-infected with hepatitis C, hepatitis D or HIV
- Other protocol-defined exclusion criteria may apply
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Telbivudine (LdT)Also: Sebivo®/Tyzeka®, LdT600Telbivudine was to be supplied as white to off-white, oval, bi-convex tablets for the 200 mg tablets and white to off-white ovaloid, slightly curved, beveled edges, film coated tablets for the 600 mg tablets. Study drug (600 mg) was to be self-administered by patients orally (p.o.) in a once daily regimen for 104 weeks; for study consistency, the daily dose had to be taken at the same time each day, with or without food. | Drug | telbivudine |
Primary outcome
Percentage of Participants Who Maintained Therapeutic Response [Group A: LdT Pool 2302/015]
Time frame: 156 weeks, 208 weeks (from feeder study baseline)
The maintained therapeutic response is defined as hepatitis B virus (HBV) DNA < 5 log10 copies/mL and either hepatitis Be antigen (HBeAg) loss or alanine aminotransferase (ALT) normalized. HBeAg loss is loss of detectable serum HBeAg in a patient who was HBeAg-positive at feeder baseline. ALT normalized is defined as ALT within normal limits for a patient with an elevated ALT level (>1.0 × ULN) at either the feeder baseline or feeder screening visit. All efficacy data were analyzed separately for HBeAg-positive and HBeAg-negative patients.
Percentage of Participants Who Maintained Therapeutic Response [Group A: LAM Pool 2302/015]
Time frame: 52 weeks, 104 weeks
The maintained therapeutic response is defined as hepatitis B virus (HBV) DNA < 5 log10 copies/mL and either hepatitis Be antigen (HBeAg) loss or alanine aminotransferase (ALT) normalized. HBeAg loss is loss of detectable serum HBeAg in a patient who was HBeAg-positive at feeder baseline. ALT normalized is defined as ALT within normal limits for a patient with an elevated ALT level (>1.0 × ULN) at either the feeder baseline or feeder screening visit. All efficacy data were analyzed separately for HBeAg-positive and HBeAg-negative patients.
Percentage of Participants Who Maintained Therapeutic Response [Group A: Feeder Studies 2401/2402/010]
Time frame: 52 weeks, 104 weeks
The maintained therapeutic response is defined as hepatitis B virus (HBV) DNA < 5 log10 copies/mL and either hepatitis Be antigen (HBeAg) loss or alanine aminotransferase (ALT) normalized. HBeAg loss is loss of detectable serum HBeAg in a patient who was HBeAg-positive at feeder baseline. ALT normalized is defined as ALT within normal limits for a patient with an elevated ALT level (>1.0 × ULN) at either the feeder baseline or feeder screening visit. All efficacy data were analyzed separately for HBeAg-positive and HBeAg-negative patients.
Percentage of Participants With Maintained Clinical Response [Group B: LdT 2301]
Time frame: 156 weeks, 208 weeks (from feeder study baseline)
Maintained clinical response is defined as achievement of serum HBV DNA < 4 log10 copies/mL, normal serum ALT level and improvement or stabilization in Child-Turcotte-Pugh (CTP) score. Total CTP score ranges from 5 to 15; higher scores indicate liver impairment. Improvement is defined as a 2-point or greater reduction in CTP score, and stabilization is defined as a less than 2-point change in CTP score, compared to the patient's baseline value. Analysis was done on the overall per protocol (PP) population and separately for the HBeAg-positive and HBeAg-negative subpopulation.
Percentage of Participants With Maintained Clinical Response [Group B: LAM 2301]
Time frame: 52 weeks,104 weeks
Maintained clinical response is defined as achievement of serum HBV DNA < 4 log10 copies/mL, normal serum ALT level and improvement or stabilization in Child-Turcotte-Pugh (CTP) score. Total CTP score ranges from 5 to 15; higher scores indicate liver impairment. Improvement is defined as a 2-point or greater reduction in CTP score, and stabilization is defined as a less than 2-point change in CTP score, compared to the patient's baseline value. Analysis was done on the overall per protocol (PP) population and separately for the HBeAg-positive and HBeAg-negative subpopulation.
Percentage of Participants With Sustained Therapeutic Response [Group C: LdT Pool and LAM Pool (2302/015)]
Time frame: 52 weeks,104 weeks
The primary efficacy endpoint for Group C patients was the percentage of patients with sustained therapeutic response (defined as HBV DNA < 5 log10 copies/mL and either HBeAg loss or ALT normalized) at Weeks 52 and 104 of off-treatment follow-up. HBeAg loss is loss of detectable serum HBeAg in a patient who was HBeAg-positive at feeder baseline. ALT normalized is ALT within normal limits for a patient with an elevated ALT level (>1.0 × ULN) at either the feeder baseline or feeder screening visit. All efficacy data were analyzed separately for HBeAg-positive and HBeAg-negative patients.
Percentage of Participants With Sustained Therapeutic Response [Group C: Other Feeder Studies]
Time frame: 52 weeks,104 weeks
The primary efficacy endpoint for Group C (other feeder studies) was the percentage of patients with sustained therapeutic response (defined as HBV DNA < 5 log10 copies/mL and either HBeAg loss or ALT normalized) at Weeks 52 and 104 of off-treatment follow-up. Patients were enrolled for off-treatment follow-up after the treatment discontinuation due to efficacy at their last visit of the feeder studies. Hence, patients did not receive study drug except in case of patients who relapsed and reinitiated treatment. No statistical summary was performed , only patient listing was generated.
4 secondary outcomes
To Longitudinally Assess the Longer-term Antiviral Efficacy Achieved With Telbivudine Treatment
Time frame: 52 weeks, 104 weeks, 156 weeks, 208 weeks
To Longitudinally Assess the Clinical Efficacy of Longer-term Treatment With Telbivudine
Time frame: 52 weeks, 104 weeks, 156 weeks, 208 weeks
To Longitudinally Assess the Durability of HBeAg Responses Achieved With Telbivudine Treatment and Other Previous Treatments in Patients
Time frame: 52 weeks, 104 weeks, 156 weeks, 208 weeks
To Determine the Longitudinal Frequency of Virologic Breakthrough and Characterize the Associated Mutations in the HBV Polymerase Gene in HBV DNA Amplified From Sera of Patients With Virologic Breakthrough
Time frame: 52 weeks, 104 weeks, 156 weeks, 208 weeks
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 21 Aug 2020.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 23234302Hsu CW, Chao YC, Lee CM, Chang TT, Chen YC. Efficacy of telbivudine in Taiwanese chronic hepatitis B patients compared with GLOBE extension study and predicting treatment outcome by HBV DNA kinetics at week 24. BMC Gastroenterol. 2012 Dec 13;12:178. doi: 10.1186/1471-230X-12-178.
- Individual participant dataSharing planned: Undecided. Novartis is committed to sharing access to patient-level data and supporting clinical documents from eligible studies with qualified external researchers. Requests are reviewed and approved by an independent review panel on the basis of scientific merit. All data provided is anonymized to protect the privacy of patients who have participated in the trial in line with applicable laws and regulations. This trial data availability is according to the criteria and process described on www.clinicalstudydatarequest.com
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Chronic Hepatitis B
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
39 sites in 21 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Telbivudine (LdT) in people with Chronic Hepatitis B, run by Novartis Pharmaceuticals at 39 sites in 21 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 3 inclusion and 3 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 21 Aug 2020. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 39 sites in United States, Australia, Canada, China, Czechia and 16 more countries. 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 phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 25 Jul 2011). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
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?
Percentage of Participants Who Maintained Therapeutic Response [Group A: LdT Pool 2302/015] (time frame: 156 weeks, 208 weeks (from feeder study baseline)). The study lists 7 primary outcomes in all. 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 NCT00142298, 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 21 Aug 2020; AzTrials last refreshed its copy on 8 Nov 2026.