Treatment for Acute Respiratory Distress Syndrome using Extracellular Vesicles
Official title: Bone Marrow Mesenchymal Stem Cell Derived Extracellular Vesicles for Hospitalized Patients With Moderate-to-Severe ARDS: A Phase III Clinical Trial
Run by Direct Biologics, LLC · NCT05354141 · Data updated 2026-11-12
This study is testing a new treatment called ExoFlo to see if it can help hospitalized patients with moderate-to-severe Acute Respiratory Distress Syndrome breathe better and improve their overall health.
Quick facts
| Phase | Phase 3 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years to 75 Years |
| Sex | All |
| Enrollment | 970 (estimated) |
| Sponsor | Direct Biologics, LLC Industry-sponsored |
| Locations | 32 sites (Phoenix, Arizona and 31 other locations) |
| Status | Recruiting |
| Started | July 1, 2022 |
| Main results expected | November 30, 2027 |
| Study ends | December 31, 2027 |
| Registry record updated | February 23, 2026 |
| Trial ID | NCT05354141 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are hospitalized adults aged 18-75 with moderate-to-severe ARDS as defined by specific clinical criteria.
✕Probably not a fit
Patients with ARDS not meeting the inclusion criteria or those with respiratory failure due to cardiac issues or fluid overload may not benefit from this treatment.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This Phase III clinical trial evaluates the safety and efficacy of ExoFlo, an intravenous treatment derived from bone marrow mesenchymal stem cell extracellular vesicles, in hospitalized patients with moderate-to-severe Acute Respiratory Distress Syndrome (ARDS). The study is multicenter, randomized, and double-blinded, comparing ExoFlo to a placebo. Participants will be monitored for improvements in respiratory function and overall health outcomes. The trial aims to provide a new therapeutic option for patients suffering from this severe condition.
Why it matters
Potential benefit: If successful, this treatment could significantly improve recovery rates and respiratory function in patients with ARDS.
How similar studies have gone: Other studies have shown promise with similar approaches using extracellular vesicles, indicating potential for success in this novel application.
Who can join: the full rules
Show full inclusion / exclusion criteria
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.
Where it's running
-
Direct Biologics Investigational Site
Phoenix, Arizona, United States Recruiting -
Direct Biologics Investigational Site
Little Rock, Arkansas, United States Recruiting -
Direct Biologics Investigational Site
Davis, California, United States Recruiting -
Direct Biologics Investigational Site
Irvine, California, United States Recruiting -
Direct Biologics Investigational Site
Sacramento, California, United States Recruiting -
Direct Biologics Investigational Site
Washington D.C., District of Columbia, United States Recruiting
Show 26 more locations
-
Direct Biologics Investigational Site
Jacksonville, Florida, United States Recruiting -
Direct Biologics Investigational Site
Boise, Idaho, United States Recruiting -
Direct Biologics Investigational Site
Iowa City, Iowa, United States Recruiting -
Direct Biologics Investigational Site
Silver Spring, Maryland, United States Recruiting -
Direct Biologics Investigational Site
Boston, Massachusetts, United States Recruiting -
Direct Biologics Investigational Site
Burlington, Massachusetts, United States Recruiting -
Direct Biologics Investigational Site
Springfield, Massachusetts, United States Recruiting -
Direct Biologics Investigational Site
Detroit, Michigan, United States Recruiting -
Direct Biologics Investigational Site
Rochester, Minnesota, United States Recruiting -
Direct Biologics Investigational Site
Jackson, Mississippi, United States Recruiting -
Direct Biologics Investigational Site
Flushing, New York, United States Recruiting -
Direct Biologics Investigational Site
Queens, New York, United States Recruiting -
Direct Biologics Investigational Site
The Bronx, New York, United States Recruiting -
Direct Biologics Investigational Site
Durham, North Carolina, United States Recruiting -
Direct Biologics Investigational Site
Winston-Salem, North Carolina, United States Recruiting -
Direct Biologics Investigational Site
Cincinnati, Ohio, United States Recruiting -
Direct Biologics Investigational Site
Cleveland, Ohio, United States Recruiting -
Direct Biologics Investigational Site
Portland, Oregon, United States Recruiting -
Direct Biologics Investigational Site
Charleston, South Carolina, United States Recruiting -
Direct Biologics Investigational Site
Knoxville, Tennessee, United States Recruiting -
Direct Biologics Investigational Site
Nashville, Tennessee, United States Recruiting -
Direct Biologics Investigational Site
Dallas, Texas, United States Recruiting -
Direct Biologics Investigational Site
Fort Worth, Texas, United States Recruiting -
Direct Biologics Investigational Site
Houston, Texas, United States Recruiting -
Direct Biologics Investigational Site
Salt Lake City, Utah, United States Recruiting -
Direct Biologics Investigational Site
Murray, Utah, United States Not yet recruiting
Study contacts
- Study coordinator: Bill Arana
- Email: clinicalaffairs@directbiologics.com
- Phone: 1-800-791-1021
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Innovative therapies for Acute Respiratory Distress Syndrome
This study is testing new treatments for adults in the hospital with Acute Respiratory Distress Syndrome to see if they can improve breathing and overall recovery compared to a placebo.
-
Evaluating vilobelimab for treating Acute Respiratory Distress Syndrome
This study is testing if vilobelimab can help hospitalized adults with Acute Respiratory Distress Syndrome feel better and improve their chances of recovery compared to a placebo.
-
Evaluating a new treatment for Acute Respiratory Distress Syndrome
This study is testing a new treatment called paridiprubart to see if it can help hospitalized adults with Acute Respiratory Distress Syndrome breathe better and improve their chances of recovery.
-
Evaluating Bevacizumab for Acute Respiratory Distress Syndrome
This study is testing whether a medication called bevacizumab can help hospitalized adults with Acute Respiratory Distress Syndrome breathe better and improve their chances of recovery.
-
Multicenter group study of sepsis and ARDS in China
This study tests how sepsis and ARDS differ among adults across several Chinese hospitals and builds a biobank to understand why some patients do better or worse.
-
Blood viscosity in ARDS: a look at how thick the blood is
This study tests whether blood viscosity is higher in adults with ARDS and whether viscosity relates to their breathing and blood flow issues.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.