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Cellular Immuno-Therapy for COVID-19 Acute Respiratory Distress Syndrome (CIRCA-19)

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ClinicalTrials.gov Identifier: NCT04400032
Recruitment Status : Completed
First Posted : May 22, 2020
Last Update Posted : April 26, 2021
Sponsor:
Collaborators:
Stem Cell Network
Ontario Research Fund
Information provided by (Responsible Party):
Ottawa Hospital Research Institute

Brief Summary:

The clinical picture of the novel corona virus 2 (SARS-CoV-2) disease (COVID-19) is rapidly evolving. Although infections may be mild, up to 25% of all patients admitted to hospital require admission to the intensive care unit, and as many as 40% will progress to develop severe problems breathing due to the acute respiratory distress syndrome (ARDS). ARDS often requires mechanical ventilation, with a 50% risk of mortality. Researchers at the Ottawa Hospital Research Institute (OHRI) have been studying the potential therapeutic role of mesenchymal stromal/stem cells, or MSCs, for the treatment of ARDS for over a decade. This has led to the world's first clinical trial using MSC therapy for patients with severe infections (sepsis) which is often associated with ARDS (NCT02421484). This trial demonstrated tolerability, and potential signs of efficacy. In addition, the investigators have established expertise in producing clinical-grade MSCs and have received approval from Health Canada for the use of MSCs in three different clinical studies.

This protocol consists of 2 sequential trials using the same trial infrastructure, noted as the Phase 1 trial 'CIRCA-1901' and the Phase 2a trial 'CIRCA-1902'. CIRCA-1901 is an open-label, dose-escalating and safety trial using a 3+3+3 design to determine the safety, and maximum feasible tolerated dose of repeated delivery of Umbilical Cord Mesenchymal Stromal Cells (UC-MSC) intravenously. The investigators will enroll up to 9 patients; each receiving repeated unit doses of UC-MSCs delivered by IV infusion on each of 3 consecutive days (24±4 hours apart) according to the following dose-escalation schedule (3 patients per dose panel): (i) Panel 1: 25 million cells/unit dose (cumulative dose: 75 million MSCs), (ii) Panel 2: 50 million cells/unit dose (cumulative dose: 150 million MSCs), (iii) Panel 3: up to 90 million cells/unit dose (cumulative dose: up to 270 million MSCs). If no safety issues are identified, we will continue to the Phase 2a trial.

CIRCA-1902 is a single-arm, open-label extension of the CIRCA-1901 trial to assess early signs of efficacy (major morbidity and mortality). The Phase 2a trial (CIRCA-1902) will enroll 12 patients to assess early signals of benefit on mortality and major morbidity in a high risk, high mortality population.


Condition or disease Intervention/treatment Phase
Acute Respiratory Distress Syndrome Covid19 Biological: Mesenchymal Stromal Cells Phase 1 Phase 2

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 15 participants
Allocation: Non-Randomized
Intervention Model: Sequential Assignment
Intervention Model Description:

CIRCA-1901 is is a dose-escalating and safety trial using a 3+3+3 design to determine the safety, and maximum feasible tolerated dose (MFTD) of intravenously (IV) delivered umbilical cord derived MSCs (UC-MSCs). If no safety issues are identified, we will continue to the Phase 2a trial.

CIRCA-1902 is a single-arm, open-label extension of the CIRCA-1901 trial to assess early signs of efficacy (major morbidity and mortality). The Phase 2a trial (CIRCA-1902) will enroll 12 patients to assess early signals of benefit on mortality and major morbidity in a high risk, high mortality population.

Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Cellular Immuno-Therapy for COVID-19 ARDS (CIRCA-19)
Actual Study Start Date : May 15, 2020
Actual Primary Completion Date : April 22, 2021
Actual Study Completion Date : April 22, 2021


Arm Intervention/treatment
Experimental: Panel 1
25 million cells/unit dose (cumulative dose: 75 million MSCs)
Biological: Mesenchymal Stromal Cells
The Mesenchymal Stromal Cells will be administered intravenously

Experimental: Panel 2
50 million cells/unit dose (cumulative dose: 150 million MSCs)
Biological: Mesenchymal Stromal Cells
The Mesenchymal Stromal Cells will be administered intravenously

Experimental: Panel 3
up to 90 million cells/unit dose (cumulative dose: up to 270 million MSCs)
Biological: Mesenchymal Stromal Cells
The Mesenchymal Stromal Cells will be administered intravenously




Primary Outcome Measures :
  1. Number of Participants With Treatment-Related Adverse Events as Assessed by CTCAE v4.0 [ Time Frame: At time of infusion until one year post-infusion ]
    Number of Participants With Treatment-Related Adverse Events as Assessed by CTCAE v4.0 to determine the maximum feasible tolerated dose (MFTD) of UC-MSCs given to patients with COVID-19


Secondary Outcome Measures :
  1. Number of Participants alive by Day 28 [ Time Frame: Day 28 ]
    Number of Participants alive by Day 28

  2. Number of Participants with ventilator-free Days by Day 28 [ Time Frame: Day 28 ]
    Number of Participants with ventilator-free Days by Day 28



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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Age of ≥18 years
  • Laboratory-confirmed SARS-CoV-2 infection during the current admission
  • On invasive, non-invasive mechanical ventilation (NIV) (PEEP≥5 cmH20) or high-flow nasal canula (HFNC) oxygen therapy (minimum total flow rate of 40 lpm)
  • ARDS (onset <96h) as per the international consensus definition (P/F) ratio < 300 on fraction of inspired oxygen (FiO2)≥0.5, with PEEP ≥5cm H2O or on HFNC), not due to cardiac causes.

Exclusion Criteria:

An individual who meets any of the following criteria will be excluded from participation in this trial:

  • No consent/inability to obtain consent
  • Moribund patient not expected to survive 24 hours
  • Any other irreversible disease or condition for which 6-month mortality is estimated to be greater than 50%
  • Currently receiving extracorporeal life support
  • Pregnant or lactating
  • Patients with a prior or concurrent malignancy whose natural history or treatment does not have the potential to interfere with the safety or efficacy assessment of the investigational regimen are eligible for this trial
  • Moderate to severe chronic liver disease (Childs-Pugh Score > 12)
  • Severe chronic respiratory disease with a baseline PaCO2 > 50 mm Hg or the use of home oxygen
  • Lung transplant patient
  • Documented deep venous thrombosis or pulmonary embolism within the past 3 months
  • Inability/contra-indications to receiving local standard of care thromboprophylaxis
  • Chronic immunosuppression (any chronic immunotherapy including daily oral steroid use >6months)
  • Known HIV, Hep B/C positive, or active Tuberculosis
  • Multisystem shock (SOFA score of >2 in >2 systems)
  • Patient, surrogate, or physician not committed to full support including intubation (exception: a patient will not be excluded if he/she would receive all supportive care except for attempts at resuscitation from cardiac arrest)

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04400032


Locations
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Canada, Ontario
The Ottawa Hospital
Ottawa, Ontario, Canada, K1H 8L6
Sponsors and Collaborators
Ottawa Hospital Research Institute
Stem Cell Network
Ontario Research Fund
Investigators
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Principal Investigator: Duncan J Stewart, MD Ottawa Hospital Research Institute
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Responsible Party: Ottawa Hospital Research Institute
ClinicalTrials.gov Identifier: NCT04400032    
Other Study ID Numbers: 20200243-01H
First Posted: May 22, 2020    Key Record Dates
Last Update Posted: April 26, 2021
Last Verified: April 2021
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by Ottawa Hospital Research Institute:
ARDS
COVID-19
Mesenchymal Stromal Cells
Additional relevant MeSH terms:
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COVID-19
Respiratory Distress Syndrome
Respiratory Distress Syndrome, Newborn
Acute Lung Injury
Syndrome
Disease
Pathologic Processes
Respiratory Tract Infections
Infections
Pneumonia, Viral
Pneumonia
Virus Diseases
Coronavirus Infections
Coronaviridae Infections
Nidovirales Infections
RNA Virus Infections
Lung Diseases
Respiratory Tract Diseases
Respiration Disorders
Infant, Premature, Diseases
Infant, Newborn, Diseases
Lung Injury