Recently disclosed clinical cohort data from high (1x1015 total vg) and low dose (5.7x1014 total vg) TSHA-102 from REVEAL adolescent/adult and pediatric Phase 1/2 trials Caregiver research regarding gain/regain of developmental milestones supporting alignment with FDA on primary endpoint in the pivotal Part B trial of TSHA-102 Previously disclosed preclinical data supporting broad biodistribution across brain and spinal cord regions following lumbar intrathecal delivery of AAV9 gene therapy vectors in non-h ...

Natural history data analysis established patients ≥ six years of age are in developmental plateau, with a ~0% likelihood of gaining/regaining developmental milestones across the core functional domains of Rett syndrome Written alignment from FDA supports single-arm, open label pivotal trial with primary endpoint of developmental milestone gain/regain in the developmental plateau population (≥ 6 years, intend N=15) with each patient serving as their own control 100% of patients in REVEAL Part A (N=10, 6-21 ...

High dose and low dose of TSHA-102 continue to be generally well tolerated with no treatment-related SAEs or DLTs in the pediatric, adolescent and adult patients treated (high dose, n=6; low dose, n=4) across both REVEAL trials as of April 10, 2025, data cutoff Program update on pivotal trial design, Rett syndrome natural history data analysis and clinical data from cohort two (high dose) and cohort one (low dose) of both REVEAL trials expected in Q2 2025 in conjunction with IRSF Rett Syndrome Scientific Me ...