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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

26 de outubro de 2026 atualizado por: 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.

Visão geral do estudo

Status

Rescindido

Condições

Tipo de estudo

Intervencional

Inscrição (Real)

278

Estágio

  • Fase 2
  • Fase 3

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Locais de estudo

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

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

18 anos e mais velhos (Adulto, Adulto mais velho)

Aceita Voluntários Saudáveis

Não

Gêneros Elegíveis para o Estudo

Tudo

Descrição

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.

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Finalidade Principal: Tratamento
  • Alocação: Randomizado
  • Modelo Intervencional: Atribuição sequencial
  • Mascaramento: Triplo

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Experimental: 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.

Experimental: 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.

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Mortality rate at Day 28 from IP administration. (Phase 2 and 3)
Prazo: 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

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Proportion of patients with clinical improvement at Day 28 (Phase 2 and 3)
Prazo: 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)
Prazo: 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)
Prazo: 60 days

The mortality rate at Day 60 from IP administration.

60 days

Outras medidas de resultado

Medida de resultado
Descrição da medida
Prazo
Number of treatment-emergent adverse events (TEAEs) and serious TEAEs.
Prazo: 28 and 60 days

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

28 and 60 days

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Patrocinador

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Real)

25 de novembro de 2020

Conclusão Primária (Real)

22 de julho de 2024

Conclusão do estudo (Real)

22 de julho de 2024

Datas de inscrição no estudo

Enviado pela primeira vez

21 de maio de 2020

Enviado pela primeira vez que atendeu aos critérios de CQ

21 de maio de 2020

Primeira postagem (Real)

26 de maio de 2020

Atualizações de registro de estudo

Última Atualização Postada (Real)

28 de outubro de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

26 de outubro de 2026

Última verificação

1 de setembro de 2026

Mais Informações

Termos relacionados a este estudo

Plano para dados de participantes individuais (IPD)

Planeja compartilhar dados de participantes individuais (IPD)?

INDECISO

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Sim

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Não

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