Cited by 185Neurogenetic and Muscular Disorders ResearchLysosomal Storage Disorders ResearchVirus-based gene therapy research

AVXS-101 (Onasemnogene Abeparvovec) for SMA1: Comparative Study with a Prospective Natural History Cohort

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Al-Zaidy, Samiah A., Kolb, Stephen J., Lowes, Linda, Alfano, Lindsay N., Shell, Richard, Church, Kathleen R., Nagendran, Sukumar, Sproule, Douglas M. +9 more·2019·Journal of Neuromuscular Diseases

Abstract

Background Spinal muscular atrophy type 1 (SMA1) is the leading genetic cause of infant mortality for which therapies, including AVXS-101 (onasemnogene abeparvovec, Zolgensma®) gene replacement therapy, are emerging. Objective This study evaluated the effectiveness of AVXS-101 in infants with spinal muscular atrophy type 1 (SMA1) compared with a prospective natural history cohort and a cohort of healthy infants. Methods Twelve SMA1 infants received the proposed therapeutic dose of AVXS-101 (NCT02122952). Where possible, the following outcomes were compared with a natural history cohort of SMA1 infants (n = 16) and healthy infants (n = 27) enrolled in the NeuroNEXT (NN101) study (NCT01736553): event-free survival, CHOP-INTEND scores, motor milestone achievements, compound muscle action potential (CMAP), and adverse events. Results Baseline characteristics of SMA1 infants in the AVXS-101 and NN101 studies were similar in age and genetic profile. The proportion of AVXS-101-treated infants who survived by 24 months of follow-up was higher compared with the NN101 study (100% vs 38%, respectively). The average baseline CHOP-INTEND score for NN101 SMA1 infants was 20.3, worsening to 5.3 by age 24 months; the average baseline score in AVXS-101-treated infants was 28.2, improving to 56.5 by age 24 months. Infants receiving AVXS-101 achieved motor milestones, such as sitting unassisted and walking. Improvements in CMAP peak area were observed in AVXS-101-treated infants at 6 and 24 mon…

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Crossref · 10.3233/jnd-190403

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Authors
Al-Zaidy, S. A., Kolb, S. J., Lowes, L., Alfano, L. N., Shell, R., Church, K. R., Nagendran, S., Sproule, D. M., Feltner, D. E., Wells, C., Ogrinc, F., Menier, M., L’Italien, J., Arnold, W. D., Kissel, J. T., Kaspar, B. K., & Mendell, J. R.
Affiliations
  • Nationwide Children's Hospital (US)
  • The Ohio State University Wexner Medical Center (US)
  • AveXis, Inc., Bannockburn, IL, USA
Corresponding author
Mendell, Jerry R.
Venue
Journal of Neuromuscular Diseases
Published
2019-09-03
Volume
6
Issue
3
Pages
307-317
ISSN
  • 2214-3599 (ISSN-L)
  • 2214-3602
OpenAlex
W2966208621
Cited by
185
References
21
Citations by year
2026: 13 · 2025: 19 · 2024: 15 · 2023: 27 · 2022: 24 · 2021: 49 · 2020: 31 · 2019: 6
FWCI
15.11
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuromuscular Diseases (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
Funders
  • Muscular Dystrophy Association
  • Ohio State University
  • Nationwide Children's Hospital
  • Cure SMA
  • AveXis
  • National Institute of Neurological Disorders and Stroke (U01NS079163)
Topics
  • Health Sciences › Medicine › Genetics › Neurogenetic and Muscular Disorders Research
  • Health Sciences › Medicine › Physiology › Lysosomal Storage Disorders Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Virus-based gene therapy research
Keywords
spinal muscular atrophy type 1, onasemnogene abeparvovec, gene replacement therapy, event-free survival, motor milestones, compound muscle action potential, motor function, natural history cohort, infants
MeSH terms
Female, Humans, Infant, Male, Prospective Studies, Spinal Muscular Atrophies of Childhood, Genetic Therapy, Treatment Outcome, Kaplan-Meier Estimate

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