Cited by 320Virus-based gene therapy researchNeurogenetic and Muscular Disorders ResearchRNA Interference and Gene Delivery

Death after High-Dose rAAV9 Gene Therapy in a Patient with Duchenne’s Muscular Dystrophy

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Lek, Angela, Wong, Brenda, Keeler, Allison, Blackwood, Meghan, Ma, Kaiyue, Huang, Shushu, Sylvia, Katelyn, Batista, A. Rita +17 more·2023·New England Journal of Medicine

Abstract

We treated a 27-year-old patient with Duchenne’s muscular dystrophy (DMD) with recombinant adeno-associated virus (rAAV) serotype 9 containing dSaCas9 (i.e., “dead” Staphylococcus aureus Cas9, in which the Cas9 nuclease activity has been inactivated) fused to VP64; this transgene was designed to up-regulate cortical dystrophin as a custom CRISPR–transactivator therapy. The dose of rAAV used was 1×1014 vector genomes per kilogram of body weight. Mild cardiac dysfunction and pericardial effusion developed, followed by acute respiratory distress syndrome (ARDS) and cardiac arrest 6 days after transgene treatment; the patient died 2 days later. A postmortem examination showed severe diffuse alveolar damage. Expression of transgene in the liver was minimal, and there was no evidence of AAV serotype 9 antibodies or effector T-cell reactivity in the organs. These findings indicate that an innate immune reaction caused ARDS in a patient with advanced DMD treated with high-dose rAAV gene therapy. (Funded by Cure Rare Disease.)

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  • Although AAV is substantially less inflammatory than many other viral vectors, treatments may require high vector doses up to 10^14 vg/kg, particularly for systemic administration.

    “Although AAV is substantially less inflammatory compared with many other viral vectors, treatments may require administration of high vector doses of up to 10 14 vg/ kg, in particular for applications that depend on systemic vector administration.”

    From Innate immune sensing of adeno-associated virus vectors (2024) · cites this paper as [9]

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Authors
Lek, A., Wong, B., Keeler, A., Blackwood, M., Ma, K., Huang, S., Sylvia, K., Batista, A. R., Artinian, R., Kokoski, D., Parajuli, S., Putra, J., Carreon, C. K., Lidov, H., Woodman, K., Pajusalu, S., Spinazzola, J. M., Gallagher, T., LaRovere, J., Balderson, D., Black, L., Sutton, K., Horgan, R., Lek, M., & Flotte, T.
Affiliations
  • Yale University (US)
  • University of Massachusetts Chan Medical School (US)
  • Boston Children's Hospital (US)
  • Tartu University Hospital (EE)
  • Wake Technical Community College (US)
  • Charles River Laboratories (United States) (US)
  • Cure Rare Disease, Woodbridge, CT, USA.
Venue
New England Journal of Medicine
Published
2023-09-28
Volume
389
Issue
13
Pages
1203-1210
ISSN
  • 0028-4793 (ISSN-L)
  • 1533-4406
OpenAlex
W4387077861
Cited by
319
References
26
Citations by year
2026: 80 · 2025: 125 · 2024: 97 · 2023: 17
FWCI
52.96
Type
journal article
Language
en
Open access
Locations
  • New England Journal of Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Heart, Lung, and Blood Institute (P01HL158506)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Virus-based gene therapy research
  • Health Sciences › Medicine › Genetics › Neurogenetic and Muscular Disorders Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
Keywords
Duchenne muscular dystrophy, gene therapy toxicity, acute respiratory distress syndrome, cardiac arrest, diffuse alveolar damage, innate immune response, autopsy
MeSH terms
Adult, Antibodies, Humans, Immunity, Innate, Respiratory Distress Syndrome, Genetic Therapy, Dystrophin, Fatal Outcome, Transgenes, Muscular Dystrophy, Duchenne

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