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Tenofovir Alafenamide in HBV Related Decompensated Liver

Safety and Efficacy of Tenofovir Alafenamide for Chronic Hepatitis B Patients With Decompensated Liver Disease

TAF is a new prodrug of tenofovir, specifically designed to achieve higher intracellular active drug concentration allowing for dosing of only 25 mg once daily and thus can potentially lower the already relatively low risk of renal toxicity and bone loss with TDF. However, such renal and bone complications with TDF may become more pronounced in decompensated CHB patients10. In the phase 3 trials11, 12, TAF had demonstrated a compatible antiviral effect (noninferior efficacy), and a higher rate of alanine aminotransferase (ALT) normalization to TDF. TAF also demonstrated an improved renal function and less bone loss compared to TDF. Therefore, TAF was approved as the first line therapy for CHB patients with compensated liver function. The lack of data regarding TAF therapy in decompensated CHB patients raised the concern of safety and efficacy of TAF in this group of patients. A small, single arm Phase 2 switch study (GS-US-320-4035; Study 4035; NCT03180619) which has enrolled 31 subjects with CPT scores ≥7, either at time of screening or by history, who were virally suppressed on TDF and/or other oral antiviral agents is currently underway with favorable safety and efficacy results through 48 weeks.[Lim YS, Lin CY, Heo J, et al. EASL 2020, poster SAT442.] While Gilead Study 4035 will continue through 96 weeks of treatment, additional data in this population are thus needed, particularly in CHB patients who have decompensated liver disease and are not being treated and are viremic. Herein, we conduct the present study and aim to investigate the safety and efficacy of TAF in CHB patients with hepatic decompensation.

研究概览

地位

招聘中

条件

研究类型

介入性

注册 (预期的)

100

阶段

  • 第四阶段

联系人和位置

本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。

学习联系方式

  • 姓名:Ming-Lung Yu, Professor
  • 电话号码:7475 886-7-3121101
  • 邮箱:fish6069@gmail.com

学习地点

      • Kaohsiung、台湾、807
        • 招聘中
        • Kaohsiung Medical University Hospital
        • 接触:

参与标准

研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

20年 至 100年 (成人、年长者)

接受健康志愿者

不

有资格学习的性别

全部

描述

Inclusion Criteria:

  • Male or non-pregnant female, age ≥20 years
  • Chronic HBV infection with positive hepatitis B surface antigen (HBsAg) for at least 6 months at screening.
  • Hepatic decompensation, defined as Child-Turcotte-Pugh (CTP) score ≥7, or the presence of portal hypertension related complications including ascites, hepatic encephalopathy (<grade 2) at screening.
  • HBV NUC treatment naïve or experienced (except prior TAF) for Arm A or currently under HBV NUC treatment (except TAF) with HBV DNA < 20 IU/mL within 6 months prior screening for Arm B.
  • Patients with either liver cirrhosis or non-cirrhosis (defined by histology, non-invasive assessments, or imaging/clinical based diagnosis).
  • Estimated creatinine clearance ≥30 ml/min (using the Cockcroft-Gault method) at screening. (Note: multiply estimated rate by 0.85 for women).
  • Willing and able to provide informed consent
  • Able to comply with dosing instructions for study drug administration and able to complete the study schedule of assessments

Exclusion Criteria:

  • Pregnant women, women who are breast feeding or who believe they may wish to become pregnant during the course of the study.
  • Previous recipient of a solid organ (including liver), or bone marrow transplant.
  • Severe or uncontrolled comorbidities determined by the Investigator.
  • Currently ≥grade 2 hepatic encephalopathy, currently or history (within 60 days) of variceal bleeding, hepatorenal syndrome, refractory ascites or spontaneous bacterial peritonitis; cytopenia of absolute neutrophil count < 750/mm3, or hemoglobin < 8 g/dL, or platelet <30000/mm3; or MELD score ≥30 at screening.
  • Malignancy history including hepatocellular carcinoma, except basal cell skin cancer without recurrence for more than 5 years.
  • Acute exacerbation of HBV, defined as an elevation of alanine aminotransferase (ALT) activity to more than 10 times the upper limit of normal and more than twice the baseline value.
  • On any of the disallowed concomitant medications listed in the prior and concomitant medications list (pg. 16). Subjects on prohibited medications who are otherwise eligible will need a wash out period of at least 30 days prior to the Screening.
  • Males and females of reproductive potential who are unwilling to use "effective" protocol-specified method(s) of contraception during the study.

学习计划

本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。

研究是如何设计的?

设计细节

  • 主要用途:治疗
  • 分配:非随机化
  • 介入模型:并行分配
  • 屏蔽:无(打开标签)

武器和干预

参与者组/臂
干预/治疗
实验性的:Arm A - initial TAF treatment group
cirrhotic or non-cirrhotic CHB patients with hepatic decompensation and HBV NUC treatment naïve or experienced (except prior TAF) will receive initial treatment (Arm A) with TAF 25 mg/day.
Approximately 100 adults, cirrhotic or non-cirrhotic (capped at 50), CHB patients with hepatic decompensation, will receive initial treatment (Arm A) with or switch (Arm B) to TAF 25 mg/day for 144 weeks. For Initiation Arm (Arm A), CHB patients with hepatic decompensation, who are currently not under HBV antiviral treatment will be enrolled. For Switch Arm (Arm B), CHB patients who are currently with hepatic decompensation and virally suppressed under HBV NUC treatment (HBV DNA < 20 IU/mL) will be enrolled.
实验性的:Arm B - switch to TAF treatment group
cirrhotic or non-cirrhotic CHB patients with hepatic decompensation and currently under HBV NUC treatment (except TAF) with HBV DNA < 20 IU/mL within 6 months prior screening will switch (Arm B) to TAF 25 mg/day
Approximately 100 adults, cirrhotic or non-cirrhotic (capped at 50), CHB patients with hepatic decompensation, will receive initial treatment (Arm A) with or switch (Arm B) to TAF 25 mg/day for 144 weeks. For Initiation Arm (Arm A), CHB patients with hepatic decompensation, who are currently not under HBV antiviral treatment will be enrolled. For Switch Arm (Arm B), CHB patients who are currently with hepatic decompensation and virally suppressed under HBV NUC treatment (HBV DNA < 20 IU/mL) will be enrolled.

研究衡量的是什么?

主要结果指标

结果测量
措施说明
大体时间
Complete virological suppression
大体时间:week 48
Proportion of patients treated with TAF who achieve complete virological suppression (HBV DNA < 20 IU/ml) at week 48 of TAF therapy in per-protocol (PP) population.
week 48

次要结果测量

结果测量
措施说明
大体时间
Rate of adverse events
大体时间:week 48
Rate of adverse events including serious adverse events and discontinuation at Week 48
week 48
Rate of recovery from hepatic decompensation
大体时间:week 48, 96, and 144
Rate of recovery from hepatic decompensation (improvement of CTP score ≥1) at week 48, 96, and 144 of TAF therapy in FAS, modified FAS (mFAS) and PP populations.
week 48, 96, and 144
Liver transplant-free survival
大体时间:week 48, 96, and 144
Liver transplant-free survival at week 48, 96, and 144 of TAF therapy in FAS, mFAS and PP populations.
week 48, 96, and 144
Rate of virological response
大体时间:week 96, and 144
Rate of virological response (HBV DNA < 20 IU/ml) at week 96, and 144 of TAF therapy
week 96, and 144
Rate of ALT normalization
大体时间:week 48, 96, and 144
Rate of ALT normalization by local (<40 U/L), and AASLD (male ≤35, female ≤25 U/L) criteria at week 48, 96, and 144 of TAF therapy in FAS, mFAS and PP populations.
week 48, 96, and 144
Rate of HBeAg loss/seroconversion, HBsAg loss/seroconversion
大体时间:week 48, 96, and 144
Rate of HBeAg loss/seroconversion in baseline HBeAg-seropositive patients, HBsAg loss/seroconversion, and change in HBsAg titer at week 48, 96, and 144 of TAF therapy.
week 48, 96, and 144
Changes of serum creatinine
大体时间:week 48, 96, and 144
Changes of serum creatinine from baseline to week 48, 96, and 144 of TAF in mFAS and PP populations.
week 48, 96, and 144
Changes of calculated creatinine clearance
大体时间:week 48, 96, and 144
Changes of calculated creatinine clearance (Cockcroft-Gault) from baseline to week 48, 96, and 144 of TAF in mFAS and PP populations.
week 48, 96, and 144
Changes in bone mineral density
大体时间:week 144
Changes in bone mineral density from baseline to week 144 of TAF in mFAS and PP populations.
week 144
Changes in value of transient elastography
大体时间:week 144
Changes in value of transient elastography (Fibroscan, kPa) from baseline to week 144 in mFAS and PP populations.
week 144
Changes in body mass index
大体时间:week 48, 96, and 144
Changes in body mass index (BMI) from baseline to week 48, 96, and 144 of TAF in mFAS and PP populations.
week 48, 96, and 144
Changes in blood lipid profile
大体时间:week 48, 96, and 144
Changes in fasting blood lipid profiles from baseline to week 48, 96, and 144 of TAF in mFAS and PP populations.
week 48, 96, and 144
Changes in blood glucose
大体时间:week 48, 96, and 144
Changes in fasting blood glucose from baseline to week 48, 96, and 144 of TAF in mFAS and PP populations.
week 48, 96, and 144

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

调查人员

  • 首席研究员:Ming-Lung Yu, Professor、Hepatobiliary Division, Kaohsiung Medical University Hospital

出版物和有用的链接

负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。

一般刊物

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2020年9月1日

初级完成 (预期的)

2021年1月31日

研究完成 (预期的)

2025年4月1日

研究注册日期

首次提交

2020年11月12日

首先提交符合 QC 标准的

2020年12月21日

首次发布 (实际的)

2020年12月24日

研究记录更新

最后更新发布 (实际的)

2020年12月24日

上次提交的符合 QC 标准的更新

2020年12月21日

最后验证

2020年11月1日

更多信息

与本研究相关的术语

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)?

不

药物和器械信息、研究文件

研究美国 FDA 监管的药品

是的

研究美国 FDA 监管的设备产品

不

在美国制造并从美国出口的产品

是的

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