Abstract
Background: In this pilot safety study, we hypothesized that a human bone marrow stem cell-derived extracellular vesicle (hBM-MSC EV) investigational product (IP) would be safe and exhibit potential efficacy in amyotrophic lateral sclerosis (ALS) patients.Methods: Ten ALS patients received two 10-ml intravenousinfusions of theIP given 1month apart and evaluated over 3months.Results: There were no serious adverse events or adverse events related to the IP and 30% of subjects' ALS functional rating scale-revised (ALSFRS-R) scores did not decline.Conclusion: HBM-MSC EVs appear safe in ALS patients. This early investigation suggests a controlled study of EVs for the treatment of ALS is warranted.
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