Amyotrophic Lateral Sclerosis
Conditions
Keywords
Gene Therapy, AAV (adeno-associated virus), ALS, SOD1
Brief summary
This is the study of AMT-162 in Participants with SOD1-ALS and is designed to evaluate the safety, tolerability, and exploratory efficacy of intrathecally administered gene therapy AMT-162. AMT-162-001 is a Phase 1/2, multi-center, single ascending dose study.
Detailed description
AMT-162 is an investigational gene therapy that encodes an artificial microribonucleic acid (microRNA or miRNA) targeting the SOD1 gene. This clinical study will test the safety of AMT-162 and explore the hypothesis that it will silence expression of mutant cytosolic SOD1 and thereby ameliorate the course of ALS caused by this mutant gene.
Interventions
DRUGAMT-162
AMT-162, the investigational product (IP), is a nonreplicating, rep/cap-deleted, self-complementary Recombinant adeno-associated virus (rAAV) vector based on adeno-associated virus (AAV) serotype rh10 and contains complementary deoxyribonucleic acid (cDNA) encoding an artificial miRNA targeting the SOD1 gene.
Sponsors
UniQure Biopharma B.V.
Study design
Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Confirmed clinical and genetic diagnosis of SOD1-mediated ALS (SOD1-ALS) experiencing signs and/or symptoms of lower motor neuron dysfunction (weakness, atrophy, cramps, fasciculations), with or without upper motor neuron symptoms (weakness, bring reflexes, spasticity). * ALSFRS-R score ≥ 25 at Screening. * Slow vital capacity (SVC) ≥50% of predicted normal value. * Capable of providing informed consent and complying with trial procedures, including: medically able to undergo lumbar puncture and has a responsible caregiver able to attend all clinic visit with the Participant.
Exclusion criteria
* SOD1 pathogenic or likely pathogenic variants in amino acid regions 43-47. * Pathogenic repeat expansion in the C9orf72 gene * Any of the following prior or concomitant treatments: * Any prior SOD1 suppression therapy with viral microRNA mediators * Prior SOD suppression therapy with antisense oligonucleotide (ASO) mediators such as tofersen (QALSODY™). Exception: Patients who previously received tofersen may be enrolled if the last dose of tofersen was received at least 20 weeks prior to the first Screening assessment and if there were no previous tofersen-related SAEs or ongoing tofersen-related adverse events that would increase the risk of receiving AMT-162, per Investigator judgment. * Other ALS medications riluzole (RILUTEK®, TIGLUTIK®), edaravone (RADICAVA®), and sodium phenylbutyrate and taururosdiol combination (RELYVRIO) or bioequivalents are allowed if dose is stable for 30 days prior to immunosuppression. * Any prior administration of an AAV gene therapy. * Participants must be willing to forego new ALS treatments through at least 6 months after infusion of AMT-162. After 6 months, Investigators and participants may decide to add new ALS medications or change existing ALS medications.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| To evaluate the safety and tolerability of ascending doses of intrathecally administered AMT-162 in Participants with SOD1-ALS | up to 5 years | Occurrence of TEAEs upon administration of ascending doses of AMT-162 |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Characterization of Immune Response to AMT-162 and Shedding of intrathecally administered AMT-162. | up to 5 years | Any positive results in shedding samples will be summarized at each timepoint. Immunogenicity parameters will be summarized for each visit. |
| Characterization of the Effect of intrathecally administered AMT-162 | up to 5 years | Change from Baseline in Slow Vital Capacity (SVC) percent of predict value, Hand-held dynamometry (HHD) scores, and Neurofilament light chain (NfL) protein levels in serum. Immunogenicity parameters will be summarized for each visit. |
Countries
Sweden, United States
Outcome results
None listed