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Publication in the Journal of Extracellular Vesicles by Univ.-Doz. Dr. Mario Gimona and Univ.-Prof. Dr. Eva Rohde.

First-in-human intracochlear application of human stromal cell-derived extracellular vesicles

Extracellular vesicles (EVs) derived from the secretome of human mesenchymal stromal cells (MSC) contain numerous factors that are known to exert anti- inflammatory effects. MSC-EVs may serve as promising cell-based therapeutics for the inner ear to attenuate inflammation-based side effects from cochlear implantation which represents an unmet clinical need. In an individual treatment performed on a ‘named patient basis’, we intraoperatively applied allogeneic umbilical cord-derived MSC-EVs (UC-MSC-EVs) produced according to good manufacturing practice. A 55- year-old patient suffering from Menière’s disease was treated with intracochlear delivery of EVs- prior to the insertion of a cochlear implant. This first-in-human use of UC-MSC-EVs demonstrates the feasibility of this novel adjuvant therapeutic approach. The safety and efficacy of intracochlear EV-application to attenuate side effects of  cochlea implants have to be determined in controlled clinical trials. [get the paper]