An Open-label Study to Investigate ECUR-506 in Male Babies Less Than 9 Months of Age With Neonatal Onset OTC Deficiency

The study drug, ECUR-506, is an investigational gene editing therapy. Gene editing is an approach used to repair, replace, or introduce functional copies of genes that are not working properly. ECUR-506 contains a functional copy of the OTC gene, along with a gene to encode an editing enzyme that enables insertion of the OTC gene into the genome. The study drug is administered as a single IV infusion. Because genes cannot enter cells on their own, ECUR-506 uses a delivery system based on adeno-associated virus (AAV), a commonly used viral vector, to transport the genetic material into cells.