Status:

COMPLETED

Intracerebral Gene Therapy for Children With Early Onset Forms of Metachromatic Leukodystrophy

Lead Sponsor:

Institut National de la Santé Et de la Recherche Médicale, France

Collaborating Sponsors:

European Leukodystrophy Association

Assistance Publique - Hôpitaux de Paris

Conditions:

Metachromatic Leukodystrophy

Eligibility:

All Genders

6-5 years

Phase:

PHASE1

PHASE2

Brief Summary

The objective of this open-label, single arm, monocentric, phase I/II clinical study is to assess safety and efficacy of ARSA gene transfer in the brain of children affected with early onset forms of ...

Eligibility Criteria

Inclusion

  • Boys or girls with an early onset form of MLD.
  • Age between 6 months and 5 years, inclusive
  • Diagnostic of MLD based on the measurement of ARSA activity in leukocytes and the accumulation of sulfatides in urine, along with normal activity of at least one other sulfatase
  • Informed consent signed up and willingness for monitoring 2 years after treatment.
  • Normal values for standard laboratory tests

Exclusion

  • Absence of ARSA protein by immunocytochemistry and/or ELISA
  • Gestational age \<32 weeks of amenorrhoea and age \< 1 year
  • Brain atrophy with a subdural space \> 10 mm in the frontal region
  • Performance IQ\<50 at WPPSI-III or cognitive function \< 3rd percentile at the Bayley's test of infant development
  • If age \> 16 months at inclusion, inability to walk few steps alone OR inability to walk few steps with support on one side along with inability to stand up alone
  • Impossibility for anesthesia
  • Malignancy, cardiac malformation, liver dysfunction, or renal dysfunction
  • Neurological disorder, except benign, not related to MLD.
  • Any other clinically significant untreated co-morbid medical condition as determined by the clinical investigator, including cardiac, pulmonary or kidney disease.
  • MRI impossibility
  • Evoked potential impossibility
  • Participation to another therapeutic clinical trial for MLD.
  • Unaffiliated to any French or any other National Health Insurance.

Key Trial Info

Start Date :

June 1 2014

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

December 20 2022

Estimated Enrollment :

5 Patients enrolled

Trial Details

Trial ID

NCT01801709

Start Date

June 1 2014

End Date

December 20 2022

Last Update

November 18 2025

Active Locations (1)

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Page 1 of 1 (1 locations)

1

Bicêtre Hospital - Paris Sud

Le Kremlin-Bicêtre, France