Extracellular Vesicle Infusion Treatment for COVID-19 Associated ARDS

COVID-19 Clinical Trial

— EXIT-COVID19  

Official title:

Bone Marrow Mesenchymal Stem Cell Derived Extracellular Vesicles Infusion Treatment for COVID-19 Associated Acute Respiratory Distress Syndrome (ARDS): A Phase II Clinical Trial

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04493242
• Other study ID #: DB-EF-PHASEII-001
• Status: Completed
• Phase: Phase 2
• Start date: September 24, 2020
• Est. completion date: May 22, 2021

Study information

• Verified date: February 2024
• Source: Direct Biologics, LLC
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

To evaluate the safety and efficacy of intravenous administration of bone marrow derived extracellular vesicles, ExoFlo, versus placebo as treatment for moderate-to-severe Acute Respiratory Distress Syndrome (ARDS) in patients with severe COVID-19.

Description:

This is a Phase II, double-blinded, placebo-controlled, randomized controlled trial that enrolled 102 subjects that were admitted with COVID-19 associated moderate-to-severe ARDS across 6 sites in the United States.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 102
• Est. completion date: May 22, 2021
• Est. primary completion date: May 1, 2021
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years to 85 Years

Eligibility

Inclusion Criteria:

1. Provision of signed and dated informed consent form (either by the individual or by the individual's healthcare proxy).

2. Stated willingness to comply with all study procedures and availability for the duration of the study

3. Male or female, aged 18-85.

4. COVID-19 positive as defined by positive Reverse Transcriptase Polymerase Chain Reaction (RT-PCR) SARS-CoV-2.

5. Moderate to severe ARDS as defined by modified Berlin definition, * which includes timing within 1 week of known clinical insult or new or worsening respiratory symptoms; bilateral opacities not fully explained by effusions, or lung collapse; respiratory failure not fully explained by cardiac failure or fluid overload; PaO2/FiO2 = 200 mm Hg.

*Modified Berlin definition used in this study is the full Berlin definition, albeit without the PEEP specification, which implies mechanical ventilation.

6. Hypoxia requiring noninvasive oxygen support such as Nasal Cannula (NC), Nonrebreather (NRB), Bilevel Positive Airway Pressure (BIPAP), Continuous Positive Airway Pressure (CPAP), high flow nasal cannula oxygen (HFNC O2) or mechanical ventilation (MV) despite initiating standard of care.

7. If the candidate is either a male or female of reproductive potential, he or she must agree to use of double barrier method of highly effective birth control contraception such as condoms with oral contraceptive pill or choose to remain abstinent if already practicing abstinence during the screening period. The required duration of usage of double barrier method OR maintenance of abstinence must include the time from the beginning of the screening period until 90 days following the last dose of the study treatment.

Exclusion Criteria:

1. Vulnerable populations such as pregnant patients, children, individuals with severe physical or mental disabilities who cannot provide meaningful consent.

2. Active malignancy requiring treatment within the last five years.

3. Major physical trauma in the last 5 days, including motor vehicle accidents, assaults, mechanical falls with sequelae of significant bleeding or craniofacial bruising, and surgeries.

4. Active tuberculosis or cystic fibrosis.

5. Severe chronic respiratory disease including chronic obstructive pulmonary disease or pulmonary fibrosis requiring home oxygen > 5L/min.

6. Use of extracorporeal membrane oxygenation (ECMO) during the current hospitalization.

7. Pre-existing pulmonary hypertension.

8. Severe pre-existing hepatic impairment (presence of cirrhosis, liver function tests (LFTs) = 6x baseline, INR = 2.0).

9. Pre-existing Chronic Kidney Disease (CKD) stage IIIb or End Stage Renal Disease (ESRD) prior to onset of COVID-19 (stage I, II, and IIIa are acceptable)

10. Irreversible coagulopathy (e.g., frequently occluded vascular access despite anticoagulation, precipitous platelet drops concurrent with end-organ damage suggesting consumptive process) or irreversible bleeding disorder (e.g., frequent bleeding from vascular access, endotracheal tubes, and foley).

11. Pneumonia clearly attributable to a non-COVID-19 related process, including aspiration pneumonia or pneumonia that is exclusively bacterial, or originating from a diagnosed alternative virus (e.g., influenza).

12. Patients who are not full code.

13. Endotracheal intubation duration = 24 hours.

14. Moribund-expected survival < 24 hours.

15. Severe metabolic disturbances on presentation (e.g., ketoacidosis, pH < 7.3)

Related Conditions & MeSH terms

• ARDS
• COVID-19

Intervention

Biological:
• ExoFlo
Intravenous administration of bone marrow mesenchymal stem cell derived extracellular vesicles

Other:
• Intravenous normal saline
Placebo

Locations

Country	Name	City	State
United States	Direct Biologics Investigational Site	Anaheim	California
United States	Direct Biologics Investigational Site	Houston	Texas
United States	Direct Biologics Investigational Site	Lubbock	Texas
United States	Direct Biologics Investigational Site	Mesquite	Texas
United States	Direct Biologics Investigational Site	Sayre	Pennsylvania
United States	Direct Biologics Investigational Site	Sheffield	Alabama

Sponsors (1)

Lead Sponsor	Collaborator
Direct Biologics, LLC

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Evaluation of 60-day Mortality Rate	To evaluate the 60-day mortality rate for IP 15mL as a treatment for COVID-19 associated moderate to severe ARDS compared to placebo. Reducing the mortality rate for hospitalized patients with COVID-19 associated ARDS is a measure of the treatment effect.	60 days
Secondary	Overall Survival Rates	Reducing the mortality rate for hospitalized patients with COVID-19 associated ARDS is a measure of the treatment effect.	Days 15, 30, 60
Secondary	Proportion of Discharged Patients	Discharge is an unbiased measure of overall clinical improvement.	Days 7, 30, 60
Secondary	Time to Discharge	Discharge is an unbiased measure of overall clinical improvement.	Number of days from the date of randomization until documented discharge from hospital, up to 60 days.
Secondary	Incidence of Treatment Emergent Serious Adverse Events	Safety comparison performed between IP 15 mL and placebo arms	61 days
Secondary	Ventilation Free Days	Number of days for which patients are not on mechanical ventilation.	Within 60 days of follow-up

External Links

•   Direct Biologics, LLC