SL Science Holding Limited ("SL Science" or the "Company") (NASDAQ:SLBT), a Taiwan-headquartered biomedical company specializing in developing innovative cellular and gene therapies, today announced that the Company has submitted an Orphan Drug Designation (ODD) request to the U.S. Food and Drug Administration (FDA) for its Gamma Delta T (GDT) cell therapy product, Vdelta2+ Gamma Delta T Cells, for the treatment of glioblastoma multiforme (GBM). The FDA's Office of Orphan Products Development (OOPD) has formally acknowledged receipt of the request and is proceeding with review on additional files about the product