Extracellular Vesicle Treatment for Acute Respiratory Distress Syndrome (ARDS) (EXTINGUISH ARDS)

Overview

About this study

The purpose of this study is to evaluate the safety and effectiveness of intravenous (IV) administration of bone marrow mesenchymal stem cell derived extracellular vesicles (EVs), ExoFlo, versus placebo for the treatment of hospitalized patients with moderate-to-severe Acute Respiratory Distress Syndrome (ARDS).

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria:

1. Men and women aged 18-75 years of age.

2. Presence of the following criteria for moderate to severe ARDS as defined by the
Berlin Criteria within 24 hours of the first infustion:

1. Onset within 7 days of known clinical insult or requiring increasing respiratory
rate, increasing oxygen flows, or increased work of breathing; and

2. Bilateral lung opacities not fully explained by pleural effusions, atelectasis,
or nodules; and

3. PaO2/FiO2 (P/F ratio) ≤ 200 mm Hg; and

4. Invasive or noninvasive ventilation with a minimum PEEP 5 cm H2O or minimum of
continuous positive airway pressure (CPAP) 5 cm H2O, or High Flow Nasal Oxygen at
≥ 30 L/min; and

5. Respiratory failure not fully explained by cardiac failure or fluid overload.

Exclusion Criteria:

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

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

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

4. Active malignancy requiring treatment within the last two years, with the exception of
non-melanoma skin cancers.

5. Major physical trauma in the last 2 days, including motor vehicle accidents, assaults,
mechanical falls with sequelae of significant bleeding or craniofacial bruising, and
surgeries, such that not one or more injury may be undiagnosed at time of screening.

6. Duration of mechanical ventilation exceeds 3 days or 72 hours from diagnosis of ARDS.

7. ALT or AST > 8 x Upper Limit of Normal (ULN).

8. Documented history of cirrhosis.

9. DNR order, as in electing not to receive chest compressions, cardiac defibrillation,
cardiac drugs, or intubation.

10. Moribund-expected survival < 24 hours.

11. Severe metabolic disturbances at randomization (e.g., ketoacidosis, pH < 7.2).

12. Patient currently connected to Extracorporeal Membrane Oxygenation at initiation of
screening.

13. If the candidate, either a male or female of reproductive potential, is unwilling to
two methods 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 method OR
maintenance of abstinence must include the time from the beginning of the screening
period until Day 61, day of withdrawal or early termination.

14. Use of investigational COVID-19 agents or any other investigational agents within 30
days prior to the first dose.

Note: Other protocol defined Inclusion/Exclusion Criteria may apply.

Eligibility last updated 10/20/23. Questions regarding updates should be directed to the study team contact.

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status Contact

Rochester, Minn.

Mayo Clinic principal investigator

Amos Lal, M.B.B.S.

Open for enrollment

Contact information:

Brandon Clapp

(507) 284-2122

Clapp.Brandon@mayo.edu

Jacksonville, Fla.

Mayo Clinic principal investigator

Sanjay Chaudhary, M.B.B.S.

Open for enrollment

Contact information:

Clinical Studies Unit

(904) 953-2255

Scottsdale/Phoenix, Ariz.

Mayo Clinic principal investigator

Rodrigo Cartin-Ceba, M.D.

Open for enrollment

Contact information:

Kayla Haeger R.N.

(480) 342-2906

Haeger.Kayla@mayo.edu

More information

Publications

Publications are currently not available