- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03300453
Intracerebral Gene Therapy in Children With Sanfilippo Type B Syndrome
Protocol AMT110-CD-001: A Phase I/II, Open-label, Study of Intracerebral Administration of Adeno-associated Viral Vector Containing the Human Alpha-N-acetylglucosaminidase cDNA in Children With Sanfilippo Type B Syndrome
Study Overview
Detailed Description
This is an open-label, phase I/II study of intra-cerebral administration of adenovirus-associated viral vector containing the human NAGLU cDNA to children suffering from Sanfilippo type B syndrome.
Four patients, 18 months up to the 5th birthday, have been included.
The inclusion period will be 8 to 12 months. The duration of follow-up for each patient is 1 year post-surgery. The duration of the first extension phase is 18 months. The duration of the second extension phase is 36 months. Therefore, the maximum time of the follow-up will be 66 months
Study Type
Enrollment (Actual)
Phase
- Phase 2
- Phase 1
Contacts and Locations
Study Locations
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Le Kremlin-Bicetre Cedex
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Paris, Le Kremlin-Bicetre Cedex, France, 94275
- Hopitaux Universitaires Paris-Sud
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion criteria:
- Age: 18 months up to 60 months (5th birthday);
- Onset of clinical manifestations related to mucopolysaccharidosis type IIIB (MPSIIIB);
- NAGLU activity in peripheral blood cell and/or cultured fibroblast extracts of less than 10% of controls;
- Patient affiliated to, or covered by a French social security regimen, or European patients with European Health Insurance Card;
- Family understanding the procedure and the informed consent;
- Signed informed consent by both parents or legal representative;
- Vital laboratory parameters within normal range.
Exclusion Criteria:
- Presence of brain atrophy on baseline MRI judged on a cortico-dural distance of more than 0.6 cm;
- Any condition that would contraindicate general anesthesia;
- Any other permanent medical condition not related to MPSIIIB that could contraindicate the study participation;
- No independent walking (ability to walk without help);
- Any medication aiming at modifying the natural course of MPSIIIB given during the 6 months before vector injection (sleep and mood regulators are accepted);
- Any condition that would contraindicate treatment with Modigraf®, Cellcept® and prednisolone (Solupred® and Solumedrol®).
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Experimental: rAAV2/5-hNAGLU
Each patient will receive 960 µL of vector suspension.
The vector suspension will be deposited simultaneously at 16 sites, each deposit containing 2.4x 1011 vg (4x1012 vg in total).
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one-time brain intraparenchymal gene therapy dose
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of Participants With Treatment-Related (Serious) Adverse Events as assessed by continuous evaluation of change from baseline
Time Frame: Baseline until end of study (Month 66)
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Multiple measurements will be aggregated to derive the number of participants with Abnormal Laboratory Values and/or Adverse Events that are related to Treatment.
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Baseline until end of study (Month 66)
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of Participants with presence of brain atrophy, white matter lesions and other lesions as assessed by cerebral MRI
Time Frame: Baseline until end of study (Month 66)
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MRIs at Baseline, Month 3, Month 12, Month 30, Month 48 and last visit Month 66. Cerebral MRI will be collected for safety assessment to retrospectively evaluate for efficacy at Baseline, D0, Month 3, Month12, Month 30 and last visit Month 66. |
Baseline until end of study (Month 66)
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Kumaran Deiva, MD, Hopitaux Universitaires Paris-Sud
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- AMT110-CD-001
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Sanfilippo Syndrome B
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University of MinnesotaNational Institute of Diabetes and Digestive and Kidney Diseases (NIDDK); National... and other collaboratorsCompletedHurler Syndrome | Sanfilippo Syndrome Type A | Sanfilippo Syndrome Type BUnited States
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ShireCompletedSanfilippo Syndrome Type BUnited States, United Kingdom, Germany
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Samsung Medical CenterNot yet recruitingSanfilippo Syndrome A
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ShireCompletedSanfilippo Syndrome Type AUnited States
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Phoenix NestAparito Ltd.; Vaincres Les Maladies Lysosomales; Association Sanfilippo SudNot yet recruitingSanfilippo Syndrome Type CUnited States, France
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Phoenix NestNational Institute of Neurological Disorders and Stroke (NINDS)Enrolling by invitationSanfilippo Syndrome Type DUnited States
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ShireTerminatedSanfilippo SyndromeNetherlands, United Kingdom
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Alexion PharmaceuticalsCompletedMPS IIIB (Sanfilippo Syndrome)Spain, Netherlands, United Kingdom, United States, Brazil
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Swedish Orphan BiovitrumCompletedSanfilippo Syndrome Type A (MPS IIIA)United States, Turkey
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Swedish Orphan BiovitrumCompletedSanfilippo Syndrome Type A (MPS IIIA)United States, Germany, Turkey
Clinical Trials on rAAV2/5-hNAGLU
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Digna Biotech S.L.University of Navarra; Porphyria Centre Sweden; UniQure N.V.; Nationales Centrum...CompletedAcute Intermittent PorphyriaSpain
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Bin LiUnknownAcute LHON | Onset Within Three Months | Onset Between 3 to 6 Months | Onset Between 6 to 12 Months | Onset Between 12 to 24 Months | Onset Between 24 to 60 Months | Onset Over 60 MonthsChina
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Huazhong University of Science and TechnologyShiyan Taihe HospitalActive, not recruitingLeber Hereditary Optic NeuropathyChina
-
STZ eyetrialUniversity Hospital TuebingenCompleted
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Hadassah Medical OrganizationCompletedLeber Congenital AmaurosisIsrael
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University of PennsylvaniaNational Eye Institute (NEI)Active, not recruitingRetinal Diseases | Amaurosis of LeberUnited States
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University of AlbertaCanadian Institutes of Health Research (CIHR); Imperial College London; University... and other collaboratorsCompleted
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Nantes University HospitalCompletedLeber Congenital AmaurosisFrance
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Bin LiHuazhong University of Science and TechnologyCompletedLeber Hereditary Optic NeuropathyChina
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Applied Genetic Technologies CorpOregon Health and Science University; University of Massachusetts, WorcesterCompletedLeber Congenital AmaurosisUnited States