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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.

調査の概要

状態

終了しました

条件

介入・治療

研究の種類

介入

入学 (実際)

278

段階

  • フェーズ2
  • フェーズ 3

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究場所

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

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

18年歳以上 (大人、高齢者)

健康ボランティアの受け入れ

いいえ

受講資格のある性別

全て

説明

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.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

  • 主な目的:処理
  • 割り当て:ランダム化
  • 介入モデル:順次割り当て
  • マスキング:トリプル

武器と介入

参加者グループ / アーム
介入・治療
実験的: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.

実験的: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.

この研究は何を測定していますか?

主要な結果の測定

結果測定
メジャーの説明
時間枠
Mortality rate at Day 28 from IP administration. (Phase 2 and 3)
時間枠: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

二次結果の測定

結果測定
メジャーの説明
時間枠
Proportion of patients with clinical improvement at Day 28 (Phase 2 and 3)
時間枠: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)
時間枠: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)
時間枠:60 days

The mortality rate at Day 60 from IP administration.

60 days

その他の成果指標

結果測定
メジャーの説明
時間枠
Number of treatment-emergent adverse events (TEAEs) and serious TEAEs.
時間枠:28 and 60 days

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

28 and 60 days

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

協力者

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (実際)

2020年11月25日

一次修了 (実際)

2024年7月22日

研究の完了 (実際)

2024年7月22日

試験登録日

最初に提出

2020年5月21日

QC基準を満たした最初の提出物

2020年5月21日

最初の投稿 (実際)

2020年5月26日

学習記録の更新

投稿された最後の更新 (実際)

2026年10月28日

QC基準を満たした最後の更新が送信されました

2026年10月26日

最終確認日

2026年9月1日

詳しくは

本研究に関する用語

その他の研究ID番号

  • EB05-04-2020

個々の参加者データ (IPD) の計画

個々の参加者データ (IPD) を共有する予定はありますか?

未定

医薬品およびデバイス情報、研究文書

米国FDA規制医薬品の研究

はい

米国FDA規制機器製品の研究

いいえ

この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。