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A Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Safety and Efficacy of EB05 + SOC vs. Placebo + SOC in Adult Hospitalized Patients With COVID-19

2026年10月26日 更新者:Edesa Biotech Inc.

COVID-19 patients who develop severe disease often develop acute respiratory distress syndrome (ARDS) as a result of a dysregulated immune response. This in turn stimulates a pro-inflammatory cascade ("cytokine storm") as well as emergency myelopoiesis.

This proinflammatory cascade is activated when viral-mediated cell damage occurs in the lungs, resulting in the release of damage-signaling alarmin molecules such as S100A8/A9 (Calprotectin), HMGB1, Resistin, and oxidized phospholipids. These damage-associated molecular patterns (DAMPs) are recognized by the pattern recognition receptor Toll-Like Receptor 4 (TLR4) found on macrophages, dendritic cells and other innate immune cells and result in additional release of pro-inflammatory molecules. Several recent studies have shown that S100A8/A9 serum levels in hospitalized COVID-19 patients positively correlate with both neutrophil count and disease severity. Taken together the DAMP-TLR4 interaction forms a central axis in the innate immune system and is a key driver of the pathological inflammation observed in COVID-19. We hypothesis that targeting the initial step in the signalling pathways of these DAMPs in innate immunity offers the best hope for controlling the exaggerated host response to SARS-CoV-2 infection.

EB05 has demonstrated safety in two clinical studies (>120 patients) and was able to block LPS-induced (TLR4 agonist) IL-6 release in humans. Given, this extensive body of evidence we believe EB05 could ameliorate ARDS due to COVID-19, significantly reducing ventilation rates and mortality.

研究概览

地位

终止

条件

干预/治疗

研究类型

介入性

注册 (实际的)

278

阶段

  • 阶段2
  • 第三阶段

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。

学习地点

    • Alberta
      • Edmonton、Alberta、加拿大、T6G 2B7
        • University of Alberta Hospital
    • British Columbia
      • Vancouver、British Columbia、加拿大、V5Z 1M9
        • Vancouver General Hospital
      • Vancouver、British Columbia、加拿大、V5K 1Z9
        • Vancouver Coastal Health
    • Ontario
      • Brampton、Ontario、加拿大、L6R 3J7
        • William Osler Health System
      • Markham、Ontario、加拿大、L3P 7P3
        • Markham Stouffville Hospital
      • Newmarket、Ontario、加拿大、L3Y 2P9
        • Southlake Regional Health Centre
      • Oshawa、Ontario、加拿大、L1G 2B9
        • Lakeridge Health
      • Ottawa、Ontario、加拿大、K1Y 4E9
        • Ottawa Hospital Research Institute
      • Toronto、Ontario、加拿大、M5G 2C4
        • Toronto General Hospital
    • Quebec
      • Greenfield Park、Quebec、加拿大、J4V 2H2
        • CISS Monteregie-Centre
      • Montreal、Quebec、加拿大、H4A 3J1
        • McGill University Health Centre
      • Montreal、Quebec、加拿大、H1T 2M4
        • Hôpital Maisonneuve Rosemont
      • Rimouski、Quebec、加拿大、G5L 5T1
        • Hôpital Régional de Rimouski
    • California
      • Fresno、California、美国、93701
        • UCSF Fresno
      • Fullerton、California、美国、92835
        • St. Jude Medical Center/ Providence
    • Florida
      • Coral Gables、Florida、美国、33146
        • University of Miami Hospital
    • Massachusetts
      • Springfield、Massachusetts、美国、01199
        • Baystate Medical Center
    • Michigan
      • Detroit、Michigan、美国、48202
        • Wayne State University
    • Oregon
      • Portland、Oregon、美国、97213
        • Providence Portland Medical Center
    • West Virginia
      • Morgantown、West Virginia、美国、26506-6224
        • West Virginia University Medicine Heart & Vascular Institute

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

18年 及以上 (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:

  1. Men and women ≥18 years of age at the time of consent.

  2. Laboratory-confirmed diagnosis of COVID-19.

  3. Hospitalized for COVID-19 related respiratory disease.

  4. Patient belongs to one of the following two categories in the nine-point COVID-19 severity scale:

    1. Hospitalized, requiring intubation and mechanical ventilation - Level 6 of the nine-point COVID-19 severity scale.
    2. Hospitalized and intubated with additional organ support - pressors, RRT, ECMO - Level 7 of the nine-point COVID-19 severity scale.
  5. For women of childbearing potential involved in any sexual intercourse that could lead to pregnancy: Negative pregnancy test and willingness to use contraceptive (consistent with local regulations) during the study period.

  6. Signed informed consent obtained by any patient capable of giving consent, or, when the patient is not capable of giving consent, from his or her legal/authorized representatives.

Exclusion Criteria:

  1. The subject is a female who is breastfeeding or pregnant.

  2. Known hypersensitivity to EB05 or its excipients.

  3. In the opinion of the investigator, death is imminent and inevitable or patient will be discharged within the next 48 - 72 hours, irrespective of the provision of treatment.

  4. Experiencing cardiac arrest while hospitalized with COVID-19.

  5. Active participation in other immunomodulator or immunosuppressant drug clinical trials.

    a. Participation in COVID-19 antiviral, anticoagulant and convalescent plasma trials may be permitted; however, the decision to enroll a patient who is participating in other clinical trials will be dealt with on a case-by-case basis.

  6. Treatment with immunomodulator or immunosuppressant drugs, including but not limited to TNF inhibitors and anti-IL-1 agents within 5 half-lives or 30 days (whichever is longer) before randomization. Except for the following, which are permitted:

    1. Treatment with immunomodulator, or immunosuppressant drugs, such as corticosteroids, as part of SOC for COVID-19
    2. Transplant patients
  7. Known other clinical conditions that contraindicate EB05 and cannot be treated or solved according to the judgment of the clinician.

  8. Patient has been intubated or mechanically ventilated for more than 72 hours prior to administration of the investigational product.

  9. Patient has been intubated and then extubated during the current hospitalization prior to administration of the investigational product.

  10. Patient has experienced meaningful clinical improvement in the severity of disease prior to administration of the investigational product.

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:随机化
  • 介入模型:顺序分配
  • 屏蔽:三倍

武器和干预

参与者组/臂
干预/治疗
实验性的:Stage 1

Stage 1 (Phase II Study) For 80% power (β = 0.20), at a significance level of 5% (α =0.05) and a 1:1 randomization ratio, a total of 316 (EB05: 158, SOC: 158) evaluable patients will be required. Allowing for 20% attrition a total of 396 patients will be recruited.

Standard of care plus single IV infusion of 15mg/kg of EB05.

Standard of care plus a single IV infusion of placebo.

实验性的:Stage 2

Stage 2 (Phase III Study) For a 1:1 ratio of patients treated with EB05 vs. Placebo, a cumulative one-sided alpha of 2.5% and 90% power, to detect an Odds Ratio of 2.00, a total of 586 evaluable patients will be required for Stage 2 (Phase III study). 293 of these will be treated with EB05 + SOC and 293 treated with Placebo + SOC. Allowing for 10% attrition, a total of 644 patients will be enrolled in this Stage.

Standard of care plus single IV infusion of 15mg/kg of EB05.

Standard of care plus a single IV infusion of placebo.

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
Mortality rate at Day 28 from IP administration. (Phase 2 and 3)
大体时间:28 days

For the current study, the primary efficacy outcome measure will be the mortality rate from IP administration. Mortality is the most clinically relevant therapeutic endpoint for this population that is on IMV. The primary endpoint will be assessed at 28-days after treatment initiation.

28 days

次要结果测量

结果测量
措施说明
大体时间
Proportion of patients with clinical improvement at Day 28 (Phase 2 and 3)
大体时间:28 days

The proportion of patients with clinical improvement, defined as a decrease of two points or more on the World Health Organization (WHO) 9 - point ordinal scale at Day 28 from IP administration.

The severity of COVID-19 disease is classified according to the WHO 9-point ordinal scale. The minimum value of 0 is associated with an "uninfected" stage wherein no clinical or virological evidence of infection is present. The maximum value of 8 is associated with death. A higher score reflects a worse outcome.

28 days
Proportion of patients with clinical improvement at Day 60 (Phase 2)
大体时间:60 days

The proportion of patients with clinical improvement, defined as a decrease of two points or more on the World Health Organization (WHO) 9 - point ordinal scale at Day 60 from IP administration.

The severity of COVID-19 disease is classified according to the WHO 9-point ordinal scale. The minimum value of 0 is associated with an "uninfected" stage wherein no clinical or virological evidence of infection is present. The maximum value of 8 is associated with death. A higher score reflects a worse outcome.

60 days
Mortality rate at Day 60 from IP adminstration (Phase 2 and 3)
大体时间:60 days

The mortality rate at Day 60 from IP administration.

60 days

其他结果措施

结果测量
措施说明
大体时间
Number of treatment-emergent adverse events (TEAEs) and serious TEAEs.
大体时间:28 and 60 days

Safety Endpoint: Number of treatment-emergent adverse events (TEAEs) and serious TEAEs.

28 and 60 days

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。

赞助

合作者

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11月25日

初级完成 (实际的)

2024年7月22日

研究完成 (实际的)

2024年7月22日

研究注册日期

首次提交

2020年5月21日

首先提交符合 QC 标准的

2020年5月21日

首次发布 (实际的)

2020年5月26日

研究记录更新

最后更新发布 (实际的)

2026年10月28日

上次提交的符合 QC 标准的更新

2026年10月26日

最后验证

2026年9月1日

更多信息

与本研究相关的术语

关键字

其他研究编号

  • EB05-04-2020

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)?

未定

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

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