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临床试验/2024-515919-22-00
2024-515919-22-00招募中3 期

A Phase 3 Randomized, Open-Label Study to Evaluate the Efficacy and Safety of Tobevibart+Elebsiran Combination Therapy in Participants with Chronic HDV Infection (ECLIPSE 1)

Vir Biotechnology Inc.13 个研究点 分布在 3 个国家目标入组 11 人开始时间: 2025年5月12日最近更新:

试验速览

阶段
3 期
状态
招募中
发起方
入组人数
11
试验地点
13
主要终点
HDV RNA < LLOQ (lower limit of quantification), TND (target not detected) and ALT (alanine aminotransferase) normalization (ALT ≤ ULN) at Week 48 for Arm 1 vs at Week 12 for Arm 2.

研究概览

简要总结

To evaluate the efficacy of tobevibart + elebsiran compared with delayed treatment in participants with chronic HDV infection To evaluate the safety of tobevibart + elebsiran in participants with chronic HDV infection

入排标准

年龄范围
18 years 至 65+ years(65+ Years, 18-64 Years)
接受健康志愿者

入选标准

  • Adult men and women aged ≥ 18 years (or age of legal consent, whichever is older) to ≤ 70 years at the time of signing informed consent
  • Positive HDV antibody or positive HDV RNA PCR result for at least 6 months prior to screening and HDV RNA ≥ 500 IU/mL at screening
  • Noncirrhotic or compensated cirrhotic liver disease at screening
  • Serum alanine aminotransferase (ALT) > ULN and < 5 x ULN
  • Body mass index (BMI) ≥ 18 kg/m2 to ≤ 40 kg/m2
  • On NRTI (nucleos(t)ide reverse transcriptase inhibitor) therapy against HBV for at least 12 weeks prior to Day 1 or have HBV DNA < 10 IU/ml at screening, and currently on one of the following NRTI therapies starting at day 1: tenofovir alafenamide, tenofovir disoproxil fumarate, or entecavir
  • Note: Other protocol defined Inclusion criteria may apply

排除标准

  • Current or prior history of any of the following: a. Clinically significant laboratory abnormalities, co-morbid medical condition (other than HBV/HDV coinfection) or planned medical procedure that may interfere with the participant’s treatment, assessment, or compliance with the protocol. b. Difficulty with blood collection and/or poor venous access for the purposes of phlebotomy. c. Current or previous (within 24 months of screening) clinically identified hepatic decompensation d. Bone marrow, peripheral blood stem-cell or solid organ transplantation e. Psychiatric hospitalization, suicide attempt, and/or a period of disability as a result of their psychiatric illness within the last 5 years. f. Malignancy diagnosed or treated within 5 years (recent localized treatment of squamous or non-invasive basal cell skin cancers is permitted; ductal carcinoma in situ and cervical carcinoma in situ is allowed if appropriately treated prior to screening); participants under evaluation for malignancy are not eligible. g. Significant drug allergy (such as anaphylaxis or hepatotoxicity)
  • One or more additional known primary or secondary causes of liver disease, other than hepatitis B or hepatitis D (i.e., alcoholism, autoimmune hepatitis, malignancy with hepatic involvement, hemochromatosis, Wilson’s disease, other congenital or metabolic condition affecting the liver, congestive heart failure, etc).
  • History of clinically significant immune complex disease as determined by the Investigator.
  • History of anaphylaxis, allergic reactions, hypersensitivity, or intolerance to study drug, study drug component (ex. Oligonucleotide and/or GalNAc) its metabolites or excipients
  • Participants with active HCV (participants with HCV antibodies can be enrolled if screening HCV RNA PCR test is negative).
  • Participants with uncontrolled HIV-1 infection (defined as HIV-1 RNA PCR value above the lower limit of assay detection with CD4+ T-cell counts < 500/mm3 within the last 12 months) or any HIV-2 infection
  • Note: Other protocol defined Exclusion criteria may apply

结局指标

主要结局

HDV RNA < LLOQ (lower limit of quantification), TND (target not detected) and ALT (alanine aminotransferase) normalization (ALT ≤ ULN) at Week 48 for Arm 1 vs at Week 12 for Arm 2.

HDV RNA < LLOQ (lower limit of quantification), TND (target not detected) and ALT (alanine aminotransferase) normalization (ALT ≤ ULN) at Week 48 for Arm 1 vs at Week 12 for Arm 2.

Primary safety Incidence of TEAEs and SAEs through Week 12.

Primary safety Incidence of TEAEs and SAEs through Week 12.

次要结局

  • • HDV RNA < LLOQ, TND at Week 48 for Arm 1 vs at Week 12 for Arm 2 (key secondary endpoint). • HDV RNA < LLOQ at Week 48 for Arm 1 vs at Week 12 for Arm 2. • Change from baseline in HDV RNA at Week 48 for Arm 1 vs at Week 12 for Arm 2
  • • ALT ≤ ULN at Week 48 for Arm 1 vs at Week 12 for Arm 2 • ALT < 1.25 × ULN at Week 48 for Arm 1 vs at Week 12 for Arm 2 • Change from baseline in ALT at Week 48 for Arm 1 vs at Week 12 for Arm 2
  • • HDV RNA < LLOQ, TND and ALT < 1.25 × ULN at Week 48 for Arm 1 vs at Week 12 for Arm 2
  • • HDV RNA < LLOQ, TND and ALT ≤ ULN at 48, 96, 144, 192 and 240 weeks of tobevibart + elebsiran treatment • HDV RNA < LLOQ and ALT ≤ ULN at 48, 96, 144, 192 and 240 weeks of tobevibart + elebsiran treatment • HDV RNA < LLOQ, TND and ALT < 1.25 × ULN at 48, 96, 144, 192 and 240 weeks of tobevibart + elebsiran treatment
  • • HDV RNA < LLOQ, TND at 48, 96, 144, 192 and 240 weeks of tobevibart + elebsiran treatment • HDV RNA < LLOQ at 48, 96, 144, 192 and 240 weeks of tobevibart + elebsiran treatment • Change from baseline in HDV RNA at 48, 96, 144, 192 and 240 weeks of tobevibart + elebsiran treatment
  • • ALT ≤ ULN at 48, 96, 144, 192 and 240 weeks of tobevibart + elebsiran treatment • ALT < 1.25 × ULN at 48, 96, 144, 192 and 240 weeks of tobevibart + elebsiran treatment • Change from baseline in ALT at 48, 96, 144, 192 and 240 weeks of tobevibart + elebsiran treatment
  • Change from baseline in liver stiffness as measured by liver elastography at 48, 96,144, 192 and 240 weeks of tobevibart + elebsiran treatment
  • • Incidence of decompensated cirrhosis (clinical event or CPT score ≥ 7) by 48, 96, 144, 192and 240 weeks of tobevibart + elebsiran treatment • Incidence of HCC and progression to liver failure requiring transplantation or resulting in death by 48, 96. 144, 192 and 240 weeks of tobevibart + elebsiran treatment.
  • Secondary safety: Incidence of TEAEs and SAEs through 48, 96, 144, 192and 240 weeks of treatment

研究者

发起方
Vir Biotechnology Inc.
申办方类型
Pharmaceutical company
责任方
Principal Investigator
主要研究者

Michael Chattergoon

Scientific

Vir Biotechnology Inc.

研究点 (13)

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