The U.K. Medicines and Healthcare Products Regulatory Agency (MHRA) and the Gene Therapy Advisory Committee (GTAC) have approved a clinical trial application (CTA) submitted by University College London (UCL) to initiate a phase I/II trial of BGT-OTCD, Bloomsbury Genetic Therapies Ltd.’s liver-targeted AAV-LK03 gene therapy, in pediatric patients with ornithine transcarbamylase deficiency (OTCD).