StrokePhase 1NCT05158101
Safety of Cultured Allogeneic Adult Umbilical Cord or Placental Derived Mesenchymal Stem Cell Exosome Intranasal Instillations for Stroke
A Phase 1 study testing cultured allogeneic adult umbilical cord or placental derived mesenchymal stem cell exosomes in people with Stroke, run by The Foundation for Orthopaedics and Regenerative Medicine at 2 sites in 2 countries.
Trial summary
This trial will study the safety and efficacy of intranasal instillation of cultured allogeneic adult umbilical cord or placental derived mesenchymal stem cell exosomes for the treatment of Stroke Read more about this study
- Who is it for?
- Any age
- Conditions the study is for
- Stroke
- What is being tested?
- cultured allogeneic adult umbilical cord or placental derived mesenchymal stem cell exosomes
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 15 participants
- Where
- 2 sitesin 2 countries
- Study dates
- 1 Feb 2022to Feb 2028
- Phase
- Phase 1
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages Any age
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- Diagnosis of Stroke
- Understanding and willingness to sign a written informed consent document
Who cannot join
- Active infection
- Active cancer
- Chronic multisystem organ failure
- Pregnancy
- Clinically significant Abnormalities on pre-treatment laboratory evaluation
- Medical condition that would (based on the opinion of the investigator) compromise patient's safety.
Show all 10Show fewer
- Continued drug abuse
- Pre-menopausal women not using contraception
- Previous organ transplant
- Hypersensitivity to sulfur
Trial locations and contacts
2 sites in 2 countries. Contact the study team or a site near you to ask about taking part.
2 sites in 2 countries
United States1 site, 1 recruiting
- Recruiting
Prodromos Stem Cell Institute
Naples, Florida, 34102
Chadwick Prodromos, MD, 847-699-6810 ext. 202, care@thepsci.com
Greece1 site, 1 recruiting
- Recruiting
Prodromos Stem Cell Institute
Athens
Chadwick Prodromos, MD, 847-699-6810 ext. 202, care@thepsci.com
About this study
Official title: Safety of Cultured Allogeneic Adult Umbilical Cord or Placental Derived Mesenchymal Stem Cell Exosome Intranasal Instillations for the Treatment of Stroke
This trial will study the safety and efficacy of intranasal instillation of cultured allogeneic adult umbilical cord or placental derived mesenchymal stem cell exosomes for the treatment of Stroke
Read the detailed description
This patient funded trial aims to study the safety and efficacy of intranasal instillation of cultured allogeneic adult umbilical cord or placental derived mesenchymal stem cell (MSC) exosomes for the treatment of Stroke. Patients will receive intranasal instillations between both nasal cavities of MSC exosomes. The total dose will be 4 CC of AlloEx, approximately 800 billion exosomes, for each day. Patients will receive instillations on back-to-back days totaling 2 doses. Patients will be evaluated within one month pre treatment and at 1, 6, 12, 24, 36, and 48 months post treatment for safety and efficacy.
- Conditions
- Stroke
- Being tested
- cultured allogeneic adult umbilical cord or placental derived mesenchymal stem cell exosomes
- Keywords
- Stroke, stem cell treatment
- Medical subject headings
- Stroke
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
cultured allogeneic adult umbilical cord or placental derived mesenchymal stem cell exosomesBiological
cultured allogeneic adult umbilical cord or placental derived mesenchymal stem cell exosomes
| Study group | Role | What they receive |
|---|---|---|
| Treatment Group | Experimental | Intranasal instillations between both nasal cavaties Receives: Biological: cultured allogeneic adult umbilical cord or placental derived mesenchymal stem cell exosomes |
What is being measured
The primary outcome is the main question the study is designed to answer.
Safety (adverse events)
Clinical monitoring of possible adverse events or complications
Measured: Four year follow-up
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted15 Dec 2021
- Study start1 Feb 2022
- Primary completionFeb 2028 (estimated)
- Study completionFeb 2028 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for StrokeStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 1
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 15 participants (estimated)
Sponsor and investigators
- Lead sponsor
- The Foundation for Orthopaedics and Regenerative Medicine
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Chadwick Prodromos, MD, Principal investigator, The Foundation for Orthopaedics and Regenerative Medicine
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05158101
- Sponsor's protocol ID
- ATG-2-MSC-011
- Status last verified
- Oct 2026
- First submitted
- 2 Dec 2021
- Last updated
- 20 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 20 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Safety of Cultured Allogeneic Adult Umbilical Cord or Placental Derived Mesenchymal Stem Cell Exosome Intranasal Instillations for the Treatment of Stroke
- ClinicalTrials.gov ID
- NCT05158101
- Acronym / sponsor ID
- ATG-2-MSC-011
- Conditions
- Stroke
- Keywords
- Stroke, stem cell treatment
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 15 participants (estimated)
- Lead sponsor
- The Foundation for Orthopaedics and Regenerative MedicineUniversity, hospital or other
- Study start
- 1 Feb 2022 (actual)
- Primary completion
- Feb 2028 (estimated)
- Study completion
- Feb 2028 (estimated)
- First posted
- 15 Dec 2021 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This trial will study the safety and efficacy of intranasal instillation of cultured allogeneic adult umbilical cord or placental derived mesenchymal stem cell exosomes for the treatment of Stroke
Detailed description
This patient funded trial aims to study the safety and efficacy of intranasal instillation of cultured allogeneic adult umbilical cord or placental derived mesenchymal stem cell (MSC) exosomes for the treatment of Stroke. Patients will receive intranasal instillations between both nasal cavities of MSC exosomes. The total dose will be 4 CC of AlloEx, approximately 800 billion exosomes, for each day. Patients will receive instillations on back-to-back days totaling 2 doses. Patients will be evaluated within one month pre treatment and at 1, 6, 12, 24, 36, and 48 months post treatment for safety and efficacy.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Treatment Group | Experimental | Biological: cultured allogeneic adult umbilical cord or placental derived mesenchymal stem cell exosomesIntranasal instillations between both nasal cavaties |
Who may qualify
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (2 listed)
- Diagnosis of Stroke
- Understanding and willingness to sign a written informed consent document
Key exclusion criteria (10 listed)
- Active infection
- Active cancer
- Chronic multisystem organ failure
- Pregnancy
- Clinically significant Abnormalities on pre-treatment laboratory evaluation
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| cultured allogeneic adult umbilical cord or placental derived mesenchymal stem cell exosomescultured allogeneic adult umbilical cord or placental derived mesenchymal stem cell exosomes | Biological | Treatment Group |
Primary outcome
Safety (adverse events)
Time frame: Four year follow-up
Clinical monitoring of possible adverse events or complications
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 20 Oct 2026.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Chadwick Prodromos, MD principal investigator
The Foundation for Orthopaedics and Regenerative Medicine
2 sites in 2 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing cultured allogeneic adult umbilical cord or placental derived mesenchymal stem cell exosomes in people with Stroke, run by The Foundation for Orthopaedics and Regenerative Medicine at 2 sites in 2 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 20 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 2 sites in United States, Greece. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Safety (adverse events) (time frame: Four year follow-up). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Oct 2026.