Cited by 404Lipid metabolism and disordersVirus-based gene therapy researchLysosomal Storage Disorders Research

Efficacy and long-term safety of alipogene tiparvovec (AAV1-LPLS447X) gene therapy for lipoprotein lipase deficiency: an open-label trial

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Gaudet, D, Méthot, J, Déry, S, Brisson, D, Essiembre, C, Tremblay, G, Tremblay, K, de Wal, J +4 more·2013·Gene Therapy

Abstract

We describe the 2-year follow-up of an open-label trial (CT-AMT-011-01) of AAV1-LPL(S447X) gene therapy for lipoprotein lipase (LPL) deficiency (LPLD), an orphan disease associated with chylomicronemia, severe hypertriglyceridemia, metabolic complications and potentially life-threatening pancreatitis. The LPL(S447X) gene variant, in an adeno-associated viral vector of serotype 1 (alipogene tiparvovec), was administered to 14 adult LPLD patients with a prior history of pancreatitis. Primary objectives were to assess the long-term safety of alipogene tiparvovec and achieve a ≥40% reduction in fasting median plasma triglyceride (TG) at 3-12 weeks compared with baseline. Cohorts 1 (n=2) and 2 (n=4) received 3 × 10(11) gc kg(-1), and cohort 3 (n=8) received 1 × 10(12) gc kg(-1). Cohorts 2 and 3 also received immunosuppressants from the time of alipogene tiparvovec administration and continued for 12 weeks. Alipogene tiparvovec was well tolerated, without emerging safety concerns for 2 years. Half of the patients demonstrated a ≥40% reduction in fasting TG between 3 and 12 weeks. TG subsequently returned to baseline, although sustained LPL(S447X) expression and long-term changes in TG-rich lipoprotein characteristics were noted independently of the effect on fasting plasma TG.

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Crossref · 10.1038/gt.2012.43

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  • A triple regimen of ciclosporin, mycophenolate and corticosteroids was used in patients receiving high vector doses, and initially transient T cell activation was still seen in 64% of patients.

    “A triple regimen of ciclosporin, mycophenolate and corticosteroids was used in patients receiving high vector doses (Gaudet et al., 2012), an established immunosuppression regimen used to prevent solid organ transplant rejection (Nelson et al., 2022). Initially, transient T cell activation was still seen in 64 % of patients.”

    From Gene Therapy-Associated Uveitis (GTAU): Understanding and mitigating the adverse immune response in retinal gene therapy (2025) · cites this paper as Gaudet et al., 2012

    Study Design (page not provided) reports ciclosporin and mycophenolate for cohorts 2 and 3, including the high-dose cohort, but does not include corticosteroids in the regimen; it also says a lower-dose cohort received immunosuppression. Results—Host immune response (page not provided) reports a moderate, non-persistent T-cell response in 9 of 14 subjects (64%). (LLM, conf=0.91)

    Experimental — accuracy not yet measured
  • Glybera, an AAV1-based gene therapy for lipoprotein lipase deficiency, was approved in Europe in 2012.

    “The fi rst approved AAV gene therapy drug was Glybera for treating lipoprotein lipase de fi ciency using AAV1 vector (7), which was approved in Europe in 2012.”

    From A versatile toolkit for overcoming AAV immunity (2022) · cites this paper as [7]

  • In all Glybera patients, anti-AAV antibodies were not affected by immunosuppressants, and T cell response was observed in most patients.

    “In all patients, anti-AAV antibodies were not affected by immunosuppressants, and T cell response was observed in most patients (7).”

    From A versatile toolkit for overcoming AAV immunity (2022) · cites this paper as [7]

  • After alipogene tiparvovec, TG drifted back to baseline levels within 6 months, although a few exceptional cases experienced sustained benefits.

    “Unfortunately, TG drifted back to baseline levels within 6 months, although a few exceptional cases experienced sustained benefits.84–87”

    From Clinical review on triglycerides (2020) · cites this paper as [84]

  • Spinal anaesthesia was needed for intramuscular injections of the adeno-associated virus subtype 1 vector carrying hyperfunctional LPL p.S447X; TG normalized within 12 weeks.

    “Spinal anaesthesia was needed for intramuscular injections of the adeno-associated virus subtype 1 vector carrying hyperfunctional LPL p.S447X; TG normalized within 12 weeks.84–86”

    From Clinical review on triglycerides (2020) · cites this paper as [84]

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  1. [34]Gaudet D Methot J Gagné C Déry S Tremblay K De Wal J Modifications in Triglyceride-Rich Lipoprotein Metabolism Induced by Alipogene Tiparvovec (AAV1-LPLS447X Gene Therapy) Correlate With Clinical Benefit in Patients with Lipoprotein Lipase Deficiency (LPLD) Circulation suppl Proceedings of the American Heart Association November 2010 Abstract 21355

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Authors
Gaudet, D., Méthot, J., Déry, S., Brisson, D., Essiembre, C., Tremblay, G., Tremblay, K., de Wal, J., Twisk, J., van den Bulk, N., Sier-Ferreira, V, & van Deventer, S.
Affiliations
Hôpital de Chicoutimi (CA)
Corresponding author
Gaudet, D
Venue
Gene Therapy
Published
2012-06-21
Volume
20
Issue
4
Pages
361-369
ISSN
  • 0969-7128 (ISSN-L)
  • 1476-5462
OpenAlex
W2067074806
Cited by
404
References
40
Citations by year
2026: 12 · 2025: 17 · 2024: 17 · 2023: 25 · 2022: 23 · 2021: 22 · 2020: 32 · 2019: 33 · 2018: 31 · 2017: 38 · 2016: 33 · 2015: 50 · 2014: 40 · 2013: 25 · 2012: 4
FWCI
24.49
Type
journal article
Language
en
Open access
Locations
  • Gene Therapy (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Heart and Stroke Foundation of Canada
  • Canada Research Chairs
  • Health Canada
  • Canadian Institutes of Health Research (82941_1)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Lipid metabolism and disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Virus-based gene therapy research
  • Health Sciences › Medicine › Physiology › Lysosomal Storage Disorders Research
Keywords
lipoprotein lipase deficiency, long-term safety, hypertriglyceridemia, triglyceride-rich lipoproteins, immunosuppression, pancreatitis, chylomicronemia
MeSH terms
Dependovirus, Adult, Drug Tolerance, Fasting, Female, Humans, Immunosuppressive Agents, Lipoprotein Lipase, Hyperlipoproteinemia Type I, Male, Middle Aged, Pancreatitis, Prospective Studies, Triglycerides, Genetic Therapy, Treatment Outcome

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