Try the modernized beta website. Learn more about the modernization effort.
Working… Menu

Multiple Dosing of Mesenchymal Stromal Cells in Patients With ARDS (COVID-19)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT04466098
Recruitment Status : Active, not recruiting
First Posted : July 10, 2020
Last Update Posted : February 28, 2022
Information provided by (Responsible Party):
Masonic Cancer Center, University of Minnesota

Brief Summary:
This is a multi-center, randomized, placebo controlled, interventional phase 2A trial to evaluate the safety profile and potential efficacy of multi-dosing of mesenchymal stromal cells (MSC) for patients with SARS-CoV-2 associated Acute Respiratory Distress Syndrome (ARDS). After informed consent, treatment assignment will be made by computer-generated randomization to administer either MSC or vehicle placebo control with a 2:1 allocation to the MSC: placebo arm.

Condition or disease Intervention/treatment Phase
Acute Respiratory Distress Syndrome ARDS (Moderate or Severe) COVID-19 Pneumonia Biological: Mesenchymal stromal cells Other: Placebo Phase 2

Detailed Description:

MSCs are adult, non-hematopoietic precursor cells derived from a variety of tissues (e.g., bone marrow, adipose tissue, and placenta) and have been used as therapy in multiple conditions, especially in immune-mediated inflammatory diseases, such as graft versus-host disease (GVHD) and systemic lupus erythematosus (SLE) with evidence of benefit.

In preclinical models, MSC are effective in ameliorating acute lung injury due to their ability to secrete paracrine factors that regulate lung endothelial and epithelial permeability, including growth factors, anti-inflammatory cytokines, and antimicrobial peptides. Based on the promising pre-clinical preliminary data and intriguing results in patients with COVID-19 associated pneumonia and ARDS as well as an established safety profile of MSC generally and in ARDS in particular, the researchers propose multiple dosing of MSCs as a study treatment to ameliorate the severity and duration of SARS-CoV-2 associated pneumonia and ARDS potentially improve survival.

Patients will receive study agent (MSC or placebo) within 48 hours of enrollment. Three doses will be administered unless a severe infusion adverse event occurs that is related to the MSC infusion. Doses will be repeated approximately every 48-72 hours with the aim of completing 3 doses within 7 days of the first dose. All patients will receive standard of care treatments for ARDS.

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 9 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Intervention Model Description: This is a randomized (2:1 ratio) placebo controlled trial.
Masking: Triple (Participant, Care Provider, Investigator)
Masking Description: Patients will be randomly assigned (2:1) to receive either 300 × 10^6 MSC or vehicle placebo control. Randomization will be stratified by risk (high versus standard risk based on the presence of preexisting co-morbidities), using permuted block sizes of 3. The allocation sequence will be accessed by each cell processing laboratory through ONCORE. Personnel in the cell processing laboratories are not masked to the treatment group, but patients, clinical staff, and investigators will be unaware of treatment assignment. To maintain masking of the investigators and clinicians, bags containing the study products and intravenous tubing had opaque coverings applied in the cell laboratories.
Primary Purpose: Treatment
Official Title: Multi-center, Randomized, Placebo Controlled, Interventional Phase 2A Clinical Trial Evaluating the Safety and Potential Efficacy of Multiple Dosing of Mesenchymal Stromal Cells in Patients With Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-Cov-2)
Actual Study Start Date : July 30, 2020
Actual Primary Completion Date : August 21, 2021
Estimated Study Completion Date : December 2022

Arm Intervention/treatment
Experimental: Mesenchymal Stromal Cells
Three fixed doses of MSC approximately 48 hours apart.
Biological: Mesenchymal stromal cells
Thawed product containing MSC(300x10^6) in DMSO resuspended 1:1 with Dextran 40 + 5% human serum albumin [total volume 60 mL]
Other Name: MSC

Placebo Comparator: Placebo
Three fixed doses of placebo control approximately 48 hours apart.
Other: Placebo
Dextran 40 + 5% human serum albumin [total volume 60 mL]

Primary Outcome Measures :
  1. Incidence of grade 3-5 infusional toxicities and predefined hemodynamic or respiratory adverse events related to the infusion of MSC [ Time Frame: Within 6 hours of the start of the infusion ]

Secondary Outcome Measures :
  1. Incidence of a reduction in one or more biomarkers of inflammation by day 7 [ Time Frame: Day 7 after first infusion ]
  2. Trend changes in PaO2:FiO2 ratio [ Time Frame: On the day of screening and on days 3, 7 and 14 after first infusion ]
  3. Trend changes in Mean Airway Pressure [ Time Frame: On the day of screening and on days 3, 7 and 14 after first infusion ]
  4. Trend changes in peak pressure [ Time Frame: On the day of screening and on days 3, 7 and 14 after first infusion ]
  5. Trend changes in plateau pressure [ Time Frame: On the day of screening (baseline) and on days 3, 7 and 14 after first infusion ]
  6. Trend changes in Positive end-expiratory airway pressure (PEEP) [ Time Frame: On the day of screening and on days 3, 7 and 14 after first infusion ]
  7. Incidence of mortality [ Time Frame: 28 days after first infusion ]
  8. Incidence of mortality [ Time Frame: 100 days after first infusion ]
  9. Number of ICU-free days [ Time Frame: 28 days after first infusion ]
  10. Number of days alive and ventilator free composite score 3 [ Time Frame: 28 days after first infusion ]
  11. Change in acute lung injury (ALI) score 2 [ Time Frame: Baseline and Day 28 after first infusion ]
    Acute Lung Injury Score is a composite 4 point scoring system validated by the NHLBI ARDS Network that considers PaO2/FiO2, the level of positive end-expiratory airway pressure, respiratory compliance, and the extent of pulmonary infiltrates on the chest radiograph

  12. Incidence of serious adverse events [ Time Frame: 28 days after first infusion ]
  13. Number of days alive off supplemental oxygen [ Time Frame: 100 days after first infusion ]

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Layout table for eligibility information
Ages Eligible for Study:   18 Years to 80 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Age 18-80 years
  • Meets 'Berlin Criteria' for diagnosis of moderate to severe ARDS for a minimum of 4 hours
  • Less than 48 hours on a ventilator after meeting criteria for diagnosis of ARDS
  • SARS-CoV-2 (proven by RT-PCR assay) with radiographic infiltrates
  • PaO2/FiO2 < 250
  • Positive end-expiratory airway pressure (PEEP) >5 cm H20
  • Elevated C-reactive protein (above laboratory upper limit of normal)
  • Meets organ function requirements, including left ventricular ejection fraction (LVEF) >35% ( as defined below)
  • Off other investigational agents directed against inflammatory cytokines 48 hours prior to enrollment; agents directed against the replication of SARS-CoV-2 [e.g., Remdesivir] are permitted
  • Voluntary informed consent in person or virtually by the patient or patient surrogate considering the face to face limitations during the COVID-19 pandemic and, given the nature of the study population, which frequently requires mechanical ventilation with sedation, surrogate consent will likely occur in a substantial proportion of the study population (this will remain a valid consent until the patient is fully alert, and aware, and can provide a second consent to continue participation in the study).
  • Adequate organ function is defined as:

    • Renal: Calculated estimated glomerular filtration rate >30 mL/min/1.73 m2 (on chemistry panel)
    • Hepatic: Bilirubin <3x upper limit of normal (ULN) and AST, ALT and alkaline phosphatase <5x ULN
    • Cardiac: Absence of uncontrolled arrhythmia and LVEF >35%

Exclusion Criteria:

  • Ventilator support of FiO2 >0·8 or PEEP >20 cm H2O and ongoing use of more than two vasopressors for 2 or more hours with any agent at doses shown below in the supine position.

    • Norepinephrine >12 μg/min or 0.2 μg/kg per min
    • Phenylephrine >150 μg/min or 3 μg/kg per min
    • Epinephrine >10 ug/min or 0.2 μg/kg per min
    • Vasopressin >0.04 units/min
  • Concurrent use of other investigational agents specifically for treatment of ARDS or inflammatory cytokines. (Note: Agents established to be efficacious and/or those used outside of formal trials are permitted as supportive data emerge)
  • Known ineligibility for use of a ventilator for a minimum of 7 days, as judged by the institution's Triage Team
  • Known allergy to MSC components: fetal calf serum, human albumin or DMSO
  • Active invasive malignant disease requiring chemotherapy/radiation
  • Other concurrent life-threatening disease (life expectancy <6 months) or eligible for hospice care
  • Known history of HIV infection on active treatment
  • Females who are pregnant or breastfeeding
  • Current mean arterial pressure (MAP) <60 mmHg while on 2 or more vasopressors at above doses for more than 2 hours
  • History of any significant cardiac (myocardial infarction within 12 months of screening visit or unstable angina), chronic ongoing hepatic, or renal disease (grade 3 or higher); diagnosis of congestive heart failure with hypoxemia primarily due to decompensated heart failure; diagnosis of severe chronic obstructive pulmonary disease (COPD) or interstitial lung disease requiring supplemental oxygen at home
  • Concurrent diagnosis of diffuse alveolar hemorrhage
  • Requiring continuous dialysis (unable to stop dialysis during study agent infusion)

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 identifier (NCT number): NCT04466098

Layout table for location information
United States, Minnesota
University of Minnesota
Minneapolis, Minnesota, United States, 55455
United States, Pennsylvania
University of Pittsburgh
Pittsburgh, Pennsylvania, United States, 15261
Sponsors and Collaborators
Masonic Cancer Center, University of Minnesota
Layout table for investigator information
Principal Investigator: David Ingbar, MD Masonic Cancer Center, University of Minnesota
Layout table for additonal information
Responsible Party: Masonic Cancer Center, University of Minnesota Identifier: NCT04466098    
Other Study ID Numbers: 2020LS075
MT2020-12 ( Other Identifier: University of Minnesota Masonic Cancer Center )
First Posted: July 10, 2020    Key Record Dates
Last Update Posted: February 28, 2022
Last Verified: February 2022

Layout table for additional information
Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by Masonic Cancer Center, University of Minnesota:
cytokine storm
Mesenchymal Stem Cells
Mesenchymal Stromal Cells
Additional relevant MeSH terms:
Layout table for MeSH terms
Respiratory Distress Syndrome
Respiratory Distress Syndrome, Newborn
Acute Lung Injury
Pathologic Processes
Respiratory Tract Infections
Pneumonia, Viral
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