Amicus initiates gene therapy study for CLN3 Batten disease
Amicus announced the initiation of a Phase 1/2 clinical study to evaluate the safety and efficacy of a single intrathecal administration of adeno-associated virus serotype 9 AAV9-CLN3 gene therapy in children with CLN3 Batten disease. Batten disease is the common name for a broad class of rare, fatal, inherited disorders of the nervous system also known as neuronal ceroid lipofuscinoses, or NCLs. The initial patient completed a one-month observation period following dosing with no serious adverse events reported to date. This first in human study of an investigational gene therapy in CLN3 Batten disease, a life-threatening genetic neurologic disorder that typically begins in early childhood and results in premature death, is currently being conducted at Nationwide Children's Hospital. CLN3 is the most prevalent of the Batten's disorders affecting an estimated 5,000+ patients. The Phase 1/2 study is enrolling children aged 3 to 10 years with a confirmed diagnosis of CLN3 Batten disease in two sequential intrathecal dose groups: a one-time low-dose of AAV9-CLN3 and a one-time high-dose of AAV9-CLN3 after evaluation of Group 1 participants. Both groups will participate in the current study for a period of three years. Amicus plans to present clinical data from this study, including interim data, at future scientific congresses and other relevant venues. The primary outcome measures are safety and efficacy as determined using the physical disability subscale of the Unified Batten Disease Rating Scale in CLN3 Batten disease.