Orchard Therapeutics Announces First Patient Randomized in Registrational Trial of OTL-203 for MPS-I Hurler Syndrome
TOKYO, LONDON and BOSTON, Feb. 05, 2024 (GLOBE NEWSWIRE) -- Orchard Therapeutics, recently acquired by Kyowa Kirin with the goal of accelerating the delivery of new gene therapies to patients around the globe, today announced the first patient has been randomized at the M Health Fairview Masonic Children’s Hospital in a registrational trial evaluating the efficacy and safety of OTL-203, an investigational hematopoietic stem cell (HSC) gene therapy, in patients with the Hurler subtype of mucopolysaccharidosis type I (MPS-IH). The trial, referred to as HURCULES, compares treatment with OTL-203 to standard of care with allogeneic hematopoietic stem cell transplant (HSCT), and is expected to enroll 40 MPS-IH patients at sites across the U.S. and Europe.
- Approximately 60 percent of children born with MPS-I have the most severe subtype, MPS-IH, also called Hurler syndrome, and rarely live past the age of 10 when untreated.
- Current treatment options for MPS-IH include allogeneic hematopoietic stem cell transplant (HSCT) and enzyme replacement therapy (ERT), both of which have significant limitations.
- One patient experienced an acute hypersensitivity reaction that was considered probably related to HSC gene therapy.
- The viral vector integration profile was comparable with other Orchard Therapeutics lentiviral-based HSC gene therapy studies, and all participants had a stable and highly polyclonal repertoire.