iECURE Reports Positive Results in OTC-HOPE Trial for Neonatal-Onset OTC Deficiency
iECURE, a clinical-stage genome editing company, has announced promising results from the ongoing OTC-HOPE clinical trial, which is testing the ECUR-506 therapy in infants with neonatal-onset ornithine transcarbamylase (OTC) deficiency. The trial's preliminary analysis of the low-dose cohort showed a durable clinical response in the first treated infant, with no hyperammonemic events (HAEs) reported 18 months post-treatment. The study also observed statistically significant reductions in the annualized rates of HAEs and hyperammonemic crises (HACs) among participants. These findings were presented at the Society for Inherited Metabolic Disorders (SIMD) 2026 Annual Meeting. OTC deficiency is a rare genetic disorder that leads to toxic ammonia accumulation in the bloodstream, causing severe neurological complications. Current treatments involve strict dietary restrictions and ammonia scavenger medications, which do not fully prevent metabolic crises.