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This open-label Phase 1/2 study by Lantu Biopharma evaluates the safety and efficacy of vesemnogene lantuparvovec (AAV-hSMN1) in patients with spinal muscular atrophy (SMA). Eligible participants have an SMA diagnosis confirmed by gene mutation analysis showing bi-allelic survival motor neuron (SMN1) mutations, either deletions or point mutations, and the patient or parent/legal guardian must be able to complete informed consent and comply with study procedures. The trial is active but no longer recruiting.
The summary above is a plain-language rendering of the official record. The original English title is shown for reference.
Criteria are reproduced from the ClinicalTrials.gov record in the original English. Only the trial team can determine eligibility.
Inclusion Criteria: * Diagnosis of SMA based on gene mutation analysis with bi-allelic survival motor neuron (SMN1) mutations (deletion or point mutations). * Patients or Parent(s)/legal guardian(s) willing and able to complete the informed consent process and comply with study procedures and visit schedule. Exclusion Criteria: * Anti-AAV9 antibody titers \>1:20 as determined by Enzyme-linked Immunosorbent Assay (ELISA) binding immunoassay. * Active viral infection (includes HIV or serology positive for hepatitis B or C). * Use of invasive ventilatory support (tracheotomy with positive pressure) or pulse oximetry \<95% saturation. * Concomitant illness and any drug that in the opinion of the investigator creates unnecessary risks for gene transfer. * Clinically significant abnormal laboratory values. * Participation in a recent SMA treatment clinical trial that in the opinion of the PI creates unnecessary risks for gene transfer. * Patient with signs of aspiration based on a swallowing test and unwilling to use an alternative method to oral feeding. * For children ≥ 24 months of age, contraindications for spinal tap procedure or administration of intrathecal therapy or presence of an implanted shunt for the drainage of CSF or an implanted central venous (CNS) catheter. * For children ≥ 24 months of age, severe contractures as determined by Physical Therapist(s) at screening that interfere with either the ability to attain/demonstrate functional measures or interferes with ability to receive dosing. * For children ≥ 24 months of age, severe scoliosis (defined as ≥ 50° curvature of spine) evident on X-ray examination. * For children ≥ 24 months of age, previous, planned or expected scoliosis repair surgery/procedure within 1 year of dose administration.