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临床试验/NCT03932513
NCT03932513终止2 期

A Phase 2, Open-label Study Evaluating the Intra-hepatic Effect of Inarigivir 400 mg Per Day and 400 mg Three Times Per Week on Immune Response and Viral Markers in Virally Suppressed Patients With Chronic Hepatitis B Infection

F-star Therapeutics, Inc.1 个研究点 分布在 1 个国家目标入组 8 人开始时间: 2019年4月11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
终止
入组人数
8
试验地点
1
主要终点
Change in intra-hepatic immune response

研究概览

简要总结

A single center, open-label, study to evaluate the intra-hepatic effect of inarigivir dose per day and three times per week on immune response and viral markers in virally suppressed patients with chronic hepatitis B infection

详细描述

This is a single center, open-label, study to evaluate the intra-hepatic effect of inarigivir dose per day and three times per week on immune response and viral markers in virally suppressed patients with chronic hepatitis B infection

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
None

入排标准

年龄范围
21 Years 至 70 Years(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Male or female, aged ≥ 21 to ≤ 70 years
  • Chronic hepatitis B infection defined as HBsAg positive and on NUC therapy for at least one year.
  • Have at least one prior documented result of HBV DNA ≤ 20 IU/mL LLOQ from a local laboratory, 6 or more months prior to Screening
  • HBV DNA ≤ 20 IU/mL at Screening tested by the Central Laboratory
  • Have been on a commercially available HBV oral antiviral (OAV) treatment(s) (tenofovir alafenamide, tenofovir disoproxil fumarate, entecavir, adefovir, lamivudine, telbivudine, either as single agents or in combination) with no change in regimen for 3 months prior to screening.
  • Ultrasound, computed tomography (CT) scan, or magnetic resonance imaging (MRI) within 3 months of randomization date with no evidence of hepatocellular carcinoma
  • Must be willing and able to comply with all study requirements including two liver biopsies
  • Negative urine or serum pregnancy test (for women of childbearing potential documented within the 24-hour period prior to the first dose of test drug. If the urine pregnancy test is positive, a follow-up serum test is required for confirmation. Additionally, all fertile males with partners of childbearing age and females must be using reliable contraception during the study and for 3 months after treatment completion. All fertile males must also refrain from sperm donation while on Active drug and for 3 months after completion of Active drug.
  • Must have the ability to understand and sign a written informed consent form; consent must be obtained prior to initiation of study procedures

排除标准

  • Any liver biopsy evidence of metavir F3 or F4 disease on any prior biopsy
  • Any history of decompensation of liver disease including history of ascites, encephalopathy, or varices
  • Evidence of advanced fibrosis at screening as defined by Fibroscan at the Screening Visit of ≥ 8 kilopascals
  • Laboratory parameters not within defined thresholds: ALT or AST ≥ 40 IU, white blood cells < 4500 cells/μL (SI unit < 4.5 × 109/L), hemoglobin (HgB) < 12 g/dL (SI unit < 120 g/L) for females, < 13 g/dL (SI unit < 130 g/L) for males, platelets < 150,000 per μL (SI unit < 150 × 109/L), albumin < 3.5 g/dL (SI unit < 35 g/L), international normalized ratio (INR) > 1.5, total bilirubin > 1.2 mg/dL (SI unit > 20.52 μmol/L), or alpha-fetoprotein (AFP) > 50 ng/mL (SI unit > 180.25 nmol/L). Patients with an elevated indirect bilirubin and known Gilbert's disease can be included if direct bilirubin is within normal limits. Patients with an AFP > 50 ng/mL but ˂ 500 ng/mL can be included if computed tomography (CT) scan or magnetic resonance imaging (MRI) performed within 3 months shows no evidence of hepatocellular carcinoma.
  • Creatinine > 1.2 mg/dL (SI unit > 106.08 μmol/L), creatinine clearance < 50 mL/min (SI unit < 0.83 L/s/m2)
  • Co-infection with hepatitis C virus, human immunodeficiency virus, or hepatitis D virus
  • Evidence or history of hepatocellular carcinoma
  • Malignancy within 5 years prior to Screening, with the exception of specific cancers that are cured by surgical resection (basal cell skin cancer, etc.). Patients under evaluation for possible malignancy are not eligible.
  • Significant cardiovascular, pulmonary, or neurological disease
  • Received solid organ or bone marrow transplant
  • Received within 3 months of Screening or expected to receive prolonged therapy with immunomodulators (e.g., corticosteroids) or biologics (e.g., monoclonal antibody, Interferon)
  • Patients currently taking medication(s) that are transported through organic anion transporting polypeptide 1 including, but not limited to, atazanavir, rifampin, cyclosporine, eltrombopag, gemfibrozil, lopinavir/ritonavir, and saquinavir
  • Use of any herbal medications or supplements during the study period
  • Use of another investigational agent within 3 months of Screening
  • Current alcohol or substance abuse judged by the Investigator to potentially interfere with compliance
  • Females who are pregnant or may wish to become pregnant during the study
  • If the Investigator believes the prospective patient will not be able to comply with the requirements of the protocol and complete the study
  • Any medical condition, in the opinion of the Investigator, that could interfere with evaluation of the study objectives or safety of the patients

研究组 & 干预措施

Treatment A: inarigivir soproxil

Experimental

Inarigivir 400 mg once per day for 6 weeks (2800mg/week).

干预措施: inarigivir soproxil (Drug)

Treatment B: inarigivir soproxil

Experimental

Inarigivir 400 mg three times per week for 6 weeks (1200mg/week).

干预措施: inarigivir soproxil (Drug)

结局指标

主要结局

Change in intra-hepatic immune response

时间窗: 6 Weeks

Relative change from Baseline to Week 6 of intra-hepatic immune response (quantitative measurement of 500-600 genes using Nanostring technology) in hepatocytes and liver immune cells derived from the central immunology core biopsy

Change in intra-hepatic anti-viral response

时间窗: 6 Weeks

Relative change from Baseline to Week 6 of intra-hepatic anti-viral response (HBV DNA, HBV RNA, HBV core levels, cccDNA and HBsAg levels) using PCR assays in hepatocytes and liver immune cells derived from the intra-hepatic virology biopsy.

次要结局

  • Characterization of hepatic immune cells(6 weeks)
  • Proportion of patients with an adverse event (AE), or a clinically significant clinical laboratory abnormality(6 weeks)
  • Correlation of change of intra-hepatic immune markers, serum cytokines and PBMC activation(6 weeks)
  • Correlation of change of intra-hepatic antiviral response and serum anti-viral response(6 weeks)
  • Comparison of change of intra-hepatic biomarkers of immune activation(6 weeks)
  • Characterization of exhaustion markers(6 weeks)
  • Comparison of change of peripheral biomarkers of immune activation(6 weeks)
  • Comparison of change of anti-viral response(6 weeks)

研究者

申办方类型
Industry
责任方
Sponsor

研究点 (1)

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