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临床试验/NCT06550128
NCT06550128已完成2 期

Randomized, Multi-center Phase II Study to Evaluate the Efficacy and Safety of AHB-137 in HBeAg-negative CHB Subjects Under Stable Nucleos(t)Ide Analogue (NA) Treatment

Ausper Biopharma Co., Ltd.11 个研究点 分布在 1 个国家目标入组 86 人开始时间: 2024年7月10日最近更新:
适应症
干预措施
相关药物

试验速览

阶段
2 期
状态
已完成
发起方
入组人数
86
试验地点
11
主要终点
Proportion of participants achieving HBsAg < limit of detection (LOD) 0.05 International Unit/mL (IU/mL) and HBV DNA < lower limit of quantitation (LLOQ) with or without anti-HBs seroconversion at the end of treatment.

研究概览

简要总结

AB-10-8003 is a randomized, multi-center phase II study to evaluate the efficacy and safety of AHB-137 in subjects with HBeAg-negative CHB under stable NA treatment.

详细描述

The study is to evaluate the efficacy and safety of AHB-137 in HBeAg-negative CHB subjects. The total duration of the study, including screening phase, treatment phase and follow-up phase.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Treatment
盲法
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)

入排标准

年龄范围
18 Years 至 —(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Participants voluntarily participate in the study, and sign the Informed Consent Form (ICF) prior to screening, able to complete the study and discontinue their NA therapy according to the protocol;
  • At least 18 years old at the time of signing of the informed consent;
  • Body Mass Index (BMI) between 18 to 32 kg/m^2(inclusive) ;
  • Participants who are Hepatitis B envelop antigen (HBeAg) negative during screening;
  • Participants whose serum HBsAg positive for at least 6 months prior to screening;
  • Participants who have stable on NA therapy at least 6 months prior to screening;
  • Participants with HBsAg concentration >100 IU/mL and≤3000 IU/mL, HBV DNA<100 IU/mL;
  • Participants with alanine aminotransferase (ALT)≤ 2x upper limit of normal (ULN);
  • For women of childbearing potential, she should be non-pregnant or non-lactating during screening, and participants (and partners) are willing to take effective contraceptive measures from the screening until the last visit or at least 6 months after the last dosing.

排除标准

  • Clinical significant abnormalities except Chronic HBV infection, such as acute coronary syndrome within 6 months before screening, evidence of major surgery, major or unstable heart disease, bleeding tendency or significant coagulation disorder within 3 months before screening;
  • Any clinically significant liver diseases, including but not limited to hepatitis caused by other pathogenic infections, hemochromatosis, Wilson disease, primary biliary cirrhosis, autoimmune liver diseases, alcoholic liver disease, severe non-alcoholic fatty liver disease, Drug-induced liver injury, etc.;
  • Participants with severe infection requiring intravenous anti-infection treatment 1 month before randomization;
  • Active hepatitis C, Human immunodeficiency virus (HIV) positive, syphilis positive;
  • Liver stiffness measurement (LSM) > 9.0 kPa when screening;
  • Diagnosed or suspected hepatocellular carcinoma;
  • The laboratory examination results are obviously abnormal;
  • History of vasculitis or signs and symptoms of potential vasculitis;
  • History of extrahepatic disease that may be related to HBV immune status;
  • Administration of immunosuppressants within 3 months prior to screening, except for short-term use (≤2 weeks) or topical/inhaled steroids. Administration of immunomodulators (thymosin) and cytotoxic drugs within 6 months prior to the first study intervention or have a history of vaccination within 1 month prior to screening or planned administration during the study.
  • Administration of any Interferon within 6 months prior to screening;
  • History of malignant tumor within the past 5 years;
  • Any suspicion of drug component allergy, or allergic constitution (various drug and food allergy, and judged by the investigator to be clinically significant) in participants;
  • Participants who have significant trauma or major surgery within 3 months before screening, or plan to perform surgery during the study;
  • Blood donation or blood loss more than 400 mL within 12 weeks before screening; Blood transfusion; Blood donation or blood loss not less than 200 mL within 1 month before screening;
  • Concurrently participating in another clinical study, or received an investigational product within the following time period prior to the first dosing day in the current study: 5 half-lives or twice the duration of the biological effect of the study treatment or 90 days;
  • Any oligonucleotide or siRNA treatments within 12 months prior to first dosing;
  • Any other circumstances or conditions for which the investigator considers that the participants are inappropriate to participate in the study.

研究组 & 干预措施

Placebo

Placebo Comparator

干预措施: AHB-137 and Placebo (Drug)

AHB-137 (24 weeks)

Experimental

干预措施: AHB-137 (24 weeks) (Drug)

AHB-137 (16 weeks)

Experimental

干预措施: AHB-137 (16 weeks) (Drug)

结局指标

主要结局

Proportion of participants achieving HBsAg < limit of detection (LOD) 0.05 International Unit/mL (IU/mL) and HBV DNA < lower limit of quantitation (LLOQ) with or without anti-HBs seroconversion at the end of treatment.

时间窗: Up to 24 weeks

次要结局

  • Safety: number of participants with adverse events (TEAEs), serious adverse events (SAE) and clinically significant examination results, including laboratory examination, electrocardiogram (ECG) examination, physical examination and vital signs(Up to 72 weeks)
  • Immunogenicity: number and percentage of participants with detectable anti-drug antibodies (ADA)(Up to 72 weeks)
  • Changes of cytokine levels compared with baseline(Up to 72 weeks)
  • The pharmacokinetic profile of AHB-137: Maximum concentration (Cmax) of AHB-137 in plasma(Up to 72 weeks)
  • The pharmacokinetic profile of AHB-137: Area under the concentration-time curve (AUC) of AHB-137(Up to 72 weeks)
  • Plasma concentrations of AHB-137(Up to 72 weeks)
  • Proportion of participants maintaining sustained response.(Up to 72 weeks)
  • Changes of the score of hepatitis B quality of life instrument (HBQOL) compared with baseline(Up to 72 weeks)
  • Percentage of participants with different levels of HBsAg reduction compared with baseline(Up to 72 weeks)
  • Serum levels of HBV DNA, HBsAg, highly sensitive HBsAg, HBcrAg, HBV RNA, HBsAb, HBeAb and HBsAg-HBsAb.(Up to 72 weeks)
  • The time from the discontinuation of NA treatment to virological relapse(Up to 72 weeks)
  • The time from the discontinuation of NA treatment to clinical relapse(Up to 72 weeks)
  • Sequencing of the Viral DNA and/or viral RNA analysis for detection of drug resistance of AHB-137(Up to 24 weeks)
  • Plasma concentrations of AHB-137(Up to 72 weeks)
  • Proportion of participants maintaining sustained response.(Up to 72 weeks)
  • Proportion of participants achieving HBsAg lower than LOD and HBV DNA lower than LLOQ , regardless of whether HBsAg seroconversion is observed(At 8 weeks)
  • Proportion of participants meeting NA treatment discontinuation criteria.(Up to 48 weeks)
  • Changes of the score of hepatitis B quality of life instrument (HBQOL) compared with baseline(Up to 72 weeks)
  • Percentage of participants with different levels of HBsAg reduction compared with baseline(Up to 72 weeks)
  • Serum levels of HBV DNA, HBsAg, highly sensitive HBsAg, HBcrAg, HBV RNA, HBsAb, HBeAb and HBsAg-HBsAb.(Up to 72 weeks)
  • The time from the discontinuation of NA treatment to virological relapse(Up to 72 weeks)
  • The time from the discontinuation of NA treatment to clinical relapse(Up to 72 weeks)
  • Sequencing of the Viral DNA and/or viral RNA analysis for detection of drug resistance of AHB-137(Up to 24 weeks)
  • Safety: number of participants with adverse events (TEAEs), serious adverse events (SAE) and clinically significant examination results, including laboratory examination, electrocardiogram (ECG) examination, physical examination and vital signs(Up to 72 weeks)
  • Immunogenicity: number and percentage of participants with detectable anti-drug antibodies (ADA)(Up to 72 weeks)
  • Changes of cytokine levels compared with baseline(Up to 72 weeks)
  • The pharmacokinetic profile of AHB-137: Maximum concentration (Cmax) of AHB-137 in plasma(Up to 72 weeks)
  • The pharmacokinetic profile of AHB-137: Area under the concentration-time curve (AUC) of AHB-137(Up to 72 weeks)

研究者

发起方
Ausper Biopharma Co., Ltd.
申办方类型
Industry
责任方
Sponsor

研究点 (11)

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