Infusing healthy mitochondria to treat cerebral ischemia
Official title: Study Title: Autologous Mitochondrial Transplant for Cerebral Ischemia
Run by University of Washington · NCT04998357 · Data updated 2026-11-12
This study is testing whether infusing healthy mitochondria into the brain can help patients with reduced blood flow during a specific treatment for stroke.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 85 Years |
| Sex | All |
| Enrollment | 20 (estimated) |
| Sponsor | University of Washington Academic / other |
| Locations | 1 site (Seattle, Washington) |
| Status | Recruiting |
| Started | April 29, 2021 |
| Main results expected | April 29, 2026 |
| Study ends | October 29, 2026 |
| Registry record updated | May 21, 2025 |
| Trial ID | NCT04998357 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are patients eligible for endovascular thrombectomy to treat acute large vessel occlusion.
✕Probably not a fit
Patients with known mitochondrial diseases or those who are hemodynamically unstable may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This study aims to infuse healthy autologous mitochondria into the cerebral vessels of patients experiencing ischemia during standard endovascular reperfusion therapy. The approach is based on preclinical evidence suggesting that mitochondrial damage caused by ischemia can be reversed with such infusions. The trial will assess the safety and feasibility of this novel intervention in human subjects, specifically targeting those eligible for endovascular thrombectomy. The procedure will be conducted concurrently with clinically indicated treatments for acute large vessel occlusion.
Why it matters
Potential benefit: If successful, this approach could significantly improve recovery outcomes for patients suffering from ischemic strokes.
How similar studies have gone: Other studies have shown success with similar mitochondrial transplantation approaches in heart conditions, indicating potential for this novel application in the brain.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Eligible for endovascular thrombectomy to treat acute large vessel occlusion * Eligible for angioplasty (microcatheter-based balloon/mechanical and chemical angioplasty) to treat acute cerebral vasospasm after aneurysmal subarachnoid hemorrhage * Subjects for whom there is likely to be enough time to obtain meaningful consent from patient or legally-authorized representative Exclusion Criteria: * Unable to receive a brain MRI scan * Known mitochondrial disease * Hemodynamically unstable patients in whom standard of care endovascular reperfusion treatment cannot safely be performed or completed
Where it's running
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Harborview Medical Center
Seattle, Washington, United States Recruiting
Study contacts
- Principal investigator: Melanie S Walker, MD — University of Washington
- Study coordinator: Study Coordinator
- Email: sanslab@uw.edu
- Phone: 206-897-5802
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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.