An Open Label Trial of Telbivudine (LdT) in Adults With Chronic Hepatitis B Previously Treated in Idenix-Sponsored Telbivudine Studies
试验速览
- 阶段
- 3 期
- 状态
- 已完成
- 入组人数
- 1,869
- 试验地点
- 1
- 主要终点
- Percentage of Participants Who Maintained Therapeutic Response [Group A: LdT Pool 2302/015]
研究概览
简要总结
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.
详细描述
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:
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 16 Years 至 70 Years（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •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
排除标准
- •Patient is pregnant or breastfeeding
- •Patient is co-infected with hepatitis C, hepatitis D or HIV
- •Other protocol-defined exclusion criteria may apply
研究组 & 干预措施
telbivudine
telbivudine 600 mg p.o. daily for 104 weeks.
干预措施: Telbivudine (LdT) (Drug)
结局指标
主要结局
Percentage of Participants Who Maintained Therapeutic Response [Group A: LdT Pool 2302/015]
时间窗: 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]
时间窗: 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]
时间窗: 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]
时间窗: 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]
时间窗: 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)]
时间窗: 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]
时间窗: 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.
次要结局
- To Longitudinally Assess the Clinical Efficacy of Longer-term Treatment With Telbivudine(52 weeks, 104 weeks, 156 weeks, 208 weeks)
- To Longitudinally Assess the Longer-term Antiviral Efficacy Achieved With Telbivudine Treatment(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(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(52 weeks, 104 weeks, 156 weeks, 208 weeks)