ClinicalTrials.gg
Status unknownNCT01109498Updated Sep 30, 2011

Safety and Efficacy in LPL-Deficient Subjects of AMT-011, an Adeno-Associated Viral Vector Expressing Human Lipoprotein Lipase [S447X]

A Phase 2/3 interventional study of Alipogene Tiparvovec (AMT-011), Human LPL [S447X] and Mycophenolate mofetil in Familial Lipoprotein Lipase Deficiency, sponsored by Amsterdam Molecular Therapeutics. Status unknown at 1 site in Canada. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2011-09-30.

Sponsored by Amsterdam Molecular Therapeutics · Phase 2/3, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Apr 2010), so the status shown — last known as Active, not recruiting — may be out of date.
Phase
Phase 2/3
Study type
Interventional
Enrollment
14
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

LPLD is a rare autosomal recessive disorder, characterized by the presence of marked chylomicronemia and hence hypertriglyceridemia. Clinically the most severe manifestation of chylomicronemia, is acute pancreatitis, which can be lethal. There is no effective therapy available to modulate the course of the illness and prevent complications for these patients. The current clinical management consists of severe reduction of dietary fat that is hard if not almost impossible to comply with. LPLD subjects continue to experience pancreatitis attacks, and are admitted to intensive care units on several occasions.

Alipogene tiparvovec corrects or restores lipoprotein lipase (LPL) function long term, and hence reverses some symptoms, halts the disease progression and prevents further complications. Alipogene tiparvovec gene therapy ensures that a catabolically beneficial variant of the human LPL gene, LPL[S447X] is expressed and active in the relevant tissues in humans. Delivery of the gene is realized via intramuscular injection of an adeno-associated viral vector, pseudotyped with AAV1 capsids.

Read the detailed description

The CT-AMT-011-01 study is an open-label, dose-escalating study evaluating the safety and efficacy of a single intramuscular administration of AMT-011 (at multiple sites). The study will be performed in the Community Genomic medicineCenter (CGMC) Chicoutimi, Canada, under the supervision of their medical ethical committee and according to the local biosafety procedures. The study participants will be treated under the responsibility of a Principal Investigator specialised in the treatment of lipid disorders. A total number of 14 subjects will be administered. Participants will be screened 3 weeks prior to administration of AMT-011 and will be evaluated for 12 weeks post administration in this study. After the study, subjects will be followed up long term with particular emphasis on the safety and efficacy aspects of LPL gene therapy using AMT-011. Subjects will be evaluated at the clinical site at 19 weeks, 26 weeks, 39 weeks, 1 year, 1.5 years, 2 years, 3 years, 4 years and 5 years after administration of AMT-011. The TG values that are obtained at week 26 will be used for secondary efficacy analysis.

02

Conditions studied

  • Familial Lipoprotein Lipase Deficiency

Keywords

  • LPLD
  • Lipoprotein Lipase Deficiency
  • Chylomicronaemia
  • Genetherapy
  • AAV
  • Alipogene Tiparvovec
  • AMT-011
  • Lipoprotein Lipase
03

In context

Hyperlipoproteinemia Type I

25 studies on the registry are indexed under Hyperlipoproteinemia Type I; 3 are open to participants now.

This study's enrollment of 14 is below the median of 16 across 13 interventional studies indexed under Hyperlipoproteinemia Type I.

Browse Hyperlipoproteinemia Type I studies →

Lead sponsor

Amsterdam Molecular Therapeutics is the lead sponsor of 4 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Eligible Population Study participants must have participated in the preceding observation study (Prep-02: Appendix III) and be diagnosed with lipoprotein lipase deficiency, meeting the following criteria: (I) Their lipoprotein lipase activity levels in post-heparin plasma should be ≤20 % of normal; (II) Confirmed homozygocity or compound heterozygocity for mutations in the LPL gene; (III) Post-heparin plasma LPL mass should be >5% of normal; (IV) Median fasting plasma TG concentrations >10.00mmol/L, as determined on the basis of 5 consecutive time points in the preceding observation study with a history of pancreatitis.
  • General Health The participant must be in good general physical health with, in the opinion of the investigator, no other clinically significant and relevant abnormalities of medical history, and no abnormalities at the physical examination and routine laboratory evaluation performed prior to the trial.
  • Age Age ≥18 years old.
  • Sex Male or female. Females must be of non-child bearing potential or with a negative pregnancy test and not breast feeding. Female subjects must use appropriate contraception (if relevant) and their spouse must use barrier contraception for the duration of the study (12 weeks). Males must practice barrier birth control and their spouse should use appropriate contraception until three consecutive semen samples, taken at least 75 days after administration, are negative for AMT-011 vector DNA.
  • Compliance The participant is willing to fully comply with all study procedures and requirements of the trial such as restrictions to a low-fat diet (see section 8.1).
  • Consent The participant has the mental ability to give voluntary written informed consent to participate in the study.

Exclusion criteria

Exclusion Criteria:

  • Disease
  • Apolipoprotein CII deficiency.
  • Inflammatory muscle disease (e.g. myositis, myopathies or rhabdomolysis).
  • Any current or relevant previous history of serious, severe or unstable physical or psychiatric illness, any medical disorder that may make the participant unlikely to fully complete the study, or any condition that presents undue risk from the study medication or procedures (e.g. malignant neoplasia).
  • Active infectious disease of any nature, including clinically active viral infections.
  • Laboratory Parameters

The following blood screening tests will result in exclusion from participation:

  • Platelet count \< 100 x 109 /L.
  • Hemoglobin \< 7.0 mmol/L.
  • Liver function disturbances (bilirubin >2.50 x normal, transaminases >3 x ULN).
  • CPK > 3 x ULN.
  • Creatinine > 3 x ULN.
05

Study design

Phase
Phase 2 / Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Single group
Masking
None (open label)
Enrollment
14 participants (actual)

Study arms

  • Experimental
    Dose cohort 3 x 10^11gc/kg

    intra muscular, 3 x E11 gc per kg body weight, injected in a single series of intramuscular injections

    Genetic: Alipogene Tiparvovec (AMT-011), Human LPL [S447X]

  • Experimental
    Alipogene Tiparvovec, Human LPL [S447X]

    intra muscular, 3 x E11 gc per kg body weight, injected in a single series of intramuscular injections with immunosuppressants

    Drug: Mycophenolate mofetil · Genetic: Alipogene Tiparvovec (AMT-011), Human LPL [S447X] · Drug: cyclosporine

  • Experimental
    Alipogene Tiparvovec, Human LPL [S447X], 1xE12 gc/kg

    intra muscular, 1 x E12 gc per kg body weight, injected in a single series of intramuscular injections with immunosuppressants

    Genetic: Alipogene Tiparvovec (AMT-011), Human LPL [S447X]

Interventions

  • GeneticAlipogene Tiparvovec (AMT-011), Human LPL [S447X]

    intra muscular, 1 x E12 gc per kg body weight, injected in a single series of intramuscular injections

    Also known as: Glybera, AMT-011

  • oral, 2 g/day, day -3 till week 12

    Also known as: CellCept

  • GeneticAlipogene Tiparvovec (AMT-011), Human LPL [S447X]

    intra muscular, 3 x E11 gc per kg body weight, injected in a single series of intramuscular injections

    Also known as: Glybera, AMT 011

  • oral, 3 mg/kg/day, day -3 till week 12

    Also known as: Neoral

06

What researchers measure

Primary outcomes

  1. Reduction of fasting triglyceride (TG) concentrations

    To achieve a reduction in fasting plasma TG such that the difference in median plasma TG observed before administration and up to 12 weeks after administration represents approximately 40% reduction, on top of a low-fat diet.

    Time frame: 12 weeks

  2. safety profile of AMT-011

    Between 6 and 15 years after administration of AMT-011, patients will be annually contacted by phone to monitor delayed adverse events related to administration of AMT-011.

    Time frame: 15 years

Secondary outcomes

  1. Reduction of TG concentrations

    To achieve sustained efficacy, defined as approximately 40% reduction in fasting plasma TG up to 26 weeks after administration, on top of a low-fat diet.

    Time frame: 26 weeks

  2. Reduction of TG concentrations

    To achieve a reduction in fasting plasma TG to a level equal to or less than 10.00 mmol/L on top of a low-fat diet at 12 weeks after administration.

    Time frame: 12 weeks

  3. Reduction of TG concentrations

    To achieve sustained efficacy, defined as a reduction in fasting plasma TG at 26 weeks after administration to a level equal to or less than 10.00 mmol/L on top of a low-fat diet.

    Time frame: 26 weeks

  4. Biological activity and expression of the transgene product.

    To determine the biological activity and expression of the lipoprotein lipase (LPLS447X) transgene product.

    Time frame: 1 year

  5. Evaluation immune respons

    To evaluate potential immune responses against the lipoprotein lipase (LPLS447X) transgene product and the adeno-associated viral (AAV) vector.

    Time frame: 5 years

  6. To assess the shedding of the viral vector

    To assess shedding of AMT-011

    Time frame: 1 year

07

Study locations

1 site
  • Ecogene-21 Clinical Trial Center/ Centre de santé et de services sociaux de Chicoutimi
    Chicoutimi, Quebec, Canada
08

References and documents

Publications

  • Rip J, Nierman MC, Sierts JA, Petersen W, Van den Oever K, Van Raalte D, Ross CJ, Hayden MR, Bakker AC, Dijkhuizen P, Hermens WT, Twisk J, Stroes E, Kastelein JJ, Kuivenhoven JA, Meulenberg JM. Gene therapy for lipoprotein lipase deficiency: working toward clinical application. Hum Gene Ther. 2005 Nov;16(11):1276-86. doi: 10.1089/hum.2005.16.1276. PubMed 16259561 ↗
  • Ross CJ, Twisk J, Meulenberg JM, Liu G, van den Oever K, Moraal E, Hermens WT, Rip J, Kastelein JJ, Kuivenhoven JA, Hayden MR. Long-term correction of murine lipoprotein lipase deficiency with AAV1-mediated gene transfer of the naturally occurring LPL(S447X) beneficial mutation. Hum Gene Ther. 2004 Sep;15(9):906-19. doi: 10.1089/hum.2004.15.906. PubMed 15353045 ↗
  • Ross CJ, Liu G, Kuivenhoven JA, Twisk J, Rip J, van Dop W, Excoffon KJ, Lewis SM, Kastelein JJ, Hayden MR. Complete rescue of lipoprotein lipase-deficient mice by somatic gene transfer of the naturally occurring LPLS447X beneficial mutation. Arterioscler Thromb Vasc Biol. 2005 Oct;25(10):2143-50. doi: 10.1161/01.ATV.0000176971.27302.b0. Epub 2005 Jul 7. PubMed 16002740 ↗
  • Ross CJ, Twisk J, Bakker AC, Miao F, Verbart D, Rip J, Godbey T, Dijkhuizen P, Hermens WT, Kastelein JJ, Kuivenhoven JA, Meulenberg JM, Hayden MR. Correction of feline lipoprotein lipase deficiency with adeno-associated virus serotype 1-mediated gene transfer of the lipoprotein lipase S447X beneficial mutation. Hum Gene Ther. 2006 May;17(5):487-99. doi: 10.1089/hum.2006.17.487. PubMed 16716106 ↗
  • Stroes ES, Nierman MC, Meulenberg JJ, Franssen R, Twisk J, Henny CP, Maas MM, Zwinderman AH, Ross C, Aronica E, High KA, Levi MM, Hayden MR, Kastelein JJ, Kuivenhoven JA. Intramuscular administration of AAV1-lipoprotein lipase S447X lowers triglycerides in lipoprotein lipase-deficient patients. Arterioscler Thromb Vasc Biol. 2008 Dec;28(12):2303-4. doi: 10.1161/ATVBAHA.108.175620. Epub 2008 Sep 18. No abstract available. PubMed 18802015 ↗
  • Burnett JR, Hooper AJ. Alipogene tiparvovec, an adeno-associated virus encoding the Ser(447)X variant of the human lipoprotein lipase gene for the treatment of patients with lipoprotein lipase deficiency. Curr Opin Mol Ther. 2009 Dec;11(6):681-91. PubMed 20072945 ↗
  • Gaudet D, Methot J, Dery S, Brisson D, Essiembre C, Tremblay G, Tremblay K, de Wal J, Twisk J, van den Bulk N, Sier-Ferreira V, van Deventer S. Efficacy and long-term safety of alipogene tiparvovec (AAV1-LPLS447X) gene therapy for lipoprotein lipase deficiency: an open-label trial. Gene Ther. 2013 Apr;20(4):361-9. doi: 10.1038/gt.2012.43. Epub 2012 Jun 21. PubMed 22717743 ↗
09

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Aug 2007, a primary completion of Jun 2013 and a completion of Jun 2013. It does not say whether these dates are actual or estimated.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 22, 2010
First posted
Apr 23, 2010
Start
Aug 2007
Primary completionEst.
Jun 2013
CompletionEst.
Jun 2013
Last update
Sep 30, 2011
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 30, 2011, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01109498
Lead sponsor
Amsterdam Molecular Therapeutics
Collaborators
International Antiviral Therapy Evaluation Center
Responsible party
Sponsor
First posted
Apr 23, 2010
Start date
Aug 2007
Primary completion
Jun 2013 (estimated)
Completion
Jun 2013 (estimated)
Last update
Sep 30, 2011

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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Studies of the drugs tested here: Mycophenolic Acid · Cyclosporine

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