Orchard Therapeutics plc is a biopharmaceutical firm dedicated to developing gene-based treatments for severe and often fatal rare conditions, operating across the United Kingdom, European Union, and the United States. Their innovative gene therapy strategy involves modifying a patient's own hematopoietic stem cells, converting them into a therapeutic cellular drug that can address the illness with just one dose. The company markets Strimvelis, a gammaretroviral therapy approved for treating adenosine deaminase-severe combined immunodeficiency (ADA-SCID). Orchard's clinical pipeline features several investigational therapies, including OTL-101 for ADA-SCID, OTL-200 targeting metachromatic leukodystrophy, OTL-103 for Wiskott-Aldrich syndrome, OTL-102 for X-linked chronic granulomatous disease, and OTL-300 for transfusion-dependent beta-thalassemia. Early-stage research programs encompass OTL-203 for mucopolysaccharidosis type I, OTL-201 for MPS-IIIA, and OTL-202 for MPS IIIB. Furthermore, a strategic partnership with Pharming Group N.V. covers the research, development, production, and commercialization of OTL-105, an experimental ex vivo autologous hematopoietic stem cell gene therapy designed for hereditary angioedema. Established in 2015 as Orchard Rx Limited, Orchard Therapeutics plc is headquartered in London, UK.