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    Summary
    EudraCT Number:2019-002936-97
    Sponsor's Protocol Code Number:LTFU-ABO-101
    National Competent Authority:France - ANSM
    Clinical Trial Type:EEA CTA
    Trial Status:Ongoing
    Date on which this record was first entered in the EudraCT database:2021-02-09
    Trial results
    Index
    A. PROTOCOL INFORMATION
    B. SPONSOR INFORMATION
    C. APPLICANT IDENTIFICATION
    D. IMP IDENTIFICATION
    D.8 INFORMATION ON PLACEBO
    E. GENERAL INFORMATION ON THE TRIAL
    F. POPULATION OF TRIAL SUBJECTS
    G. INVESTIGATOR NETWORKS TO BE INVOLVED IN THE TRIAL
    N. REVIEW BY THE COMPETENT AUTHORITY OR ETHICS COMMITTEE IN THE COUNTRY CONCERNED
    P. END OF TRIAL
    Expand All   Collapse All
    A. Protocol Information
    A.1Member State ConcernedFrance - ANSM
    A.2EudraCT number2019-002936-97
    A.3Full title of the trial
    A Long-term Follow-up Study of Patients with MPS IIIB from Gene Therapy Clinical Trials Involving the Administration of ABO-101 (rAAV9.CMV.hNAGLU)
    Étude de suivi à long terme des patients atteints de MPS IIIB ayant participé aux essais cliniques de thérapie génique impliquant l’administration d’ABO-101 (rAAV9.CMV.hNAGLU)
    A.3.1Title of the trial for lay people, in easily understood, i.e. non-technical, language
    A Long-term Follow-up Study of Patients with MPS IIIB from Gene Therapy Clinical Trials Involving the Administration of ABO-101 (rAAV9.CMV.hNAGLU)
    Étude de suivi à long terme des patients atteints de MPS IIIB ayant participé aux essais cliniques de thérapie génique impliquant l’administration d’ABO-101 (rAAV9.CMV.hNAGLU)
    A.4.1Sponsor's protocol code numberLTFU-ABO-101
    A.5.2US NCT (ClinicalTrials.gov registry) numberNCT04655911
    A.5.4Other Identifiers
    Name:IND NumberNumber:16671
    A.7Trial is part of a Paediatric Investigation Plan No
    A.8EMA Decision number of Paediatric Investigation Plan
    B. Sponsor Information
    B.Sponsor: 1
    B.1.1Name of SponsorAbeona Therapeutics Europe SL.
    B.1.3.4CountrySpain
    B.3.1 and B.3.2Status of the sponsorCommercial
    B.4 Source(s) of Monetary or Material Support for the clinical trial:
    B.4.1Name of organisation providing supportAbeona Therapeutics Inc
    B.4.2CountryUnited States
    B.5 Contact point designated by the sponsor for further information on the trial
    B.5.1Name of organisationAbeona Therapeutics Inc
    B.5.2Functional name of contact pointHead of European Medical Affairs
    B.5.3 Address:
    B.5.3.1Street AddressAvenida de Manoteras 30, A207-208
    B.5.3.2Town/ cityMadrid
    B.5.3.3Post code28050
    B.5.3.4CountrySpain
    B.5.4Telephone number+34689166070
    B.5.5Fax number+34911726254
    B.5.6E-mailsanfilippo@abeonatherapeutics.com
    D. IMP Identification
    D.IMP: 1
    D.1.2 and D.1.3IMP RoleTest
    D.2 Status of the IMP to be used in the clinical trial
    D.2.1IMP to be used in the trial has a marketing authorisation No
    D.2.5The IMP has been designated in this indication as an orphan drug in the Community Yes
    D.2.5.1Orphan drug designation numberEU/3/16/1825
    D.3 Description of the IMP
    D.3.1Product namerAAV9.CMV.hNAGLU
    D.3.2Product code ABO-101
    D.3.4Pharmaceutical form Suspension for injection
    D.3.4.1Specific paediatric formulation No
    D.3.7Routes of administration for this IMPIntravenous use
    D.3.8 to D.3.10 IMP Identification Details (Active Substances)
    D.3.8INN - Proposed INNrAAV9.CMV.hNAGLU
    D.3.9.2Current sponsor codeABO-101
    D.3.9.3Other descriptive nameAdeno-associated viral vector serotype 9 containing the human N-acetyl-alpha-glucosaminidase gene
    D.3.9.4EV Substance CodeSUB195018
    D.3.10 Strength
    D.3.10.1Concentration unit vector genomes (vg)/mL
    D.3.10.2Concentration typenot less then
    D.3.10.3Concentration number150000000000
    D.3.11 The IMP contains an:
    D.3.11.1Active substance of chemical origin No
    D.3.11.2Active substance of biological/ biotechnological origin (other than Advanced Therapy IMP (ATIMP) No
    The IMP is a:
    D.3.11.3Advanced Therapy IMP (ATIMP) Yes
    D.3.11.3.1Somatic cell therapy medicinal product No
    D.3.11.3.2Gene therapy medical product Yes
    D.3.11.3.3Tissue Engineered Product No
    D.3.11.3.4Combination ATIMP (i.e. one involving a medical device) No
    D.3.11.3.5Committee on Advanced therapies (CAT) has issued a classification for this product No
    D.3.11.4Combination product that includes a device, but does not involve an Advanced Therapy No
    D.3.11.5Radiopharmaceutical medicinal product No
    D.3.11.6Immunological medicinal product (such as vaccine, allergen, immune serum) No
    D.3.11.7Plasma derived medicinal product No
    D.3.11.8Extractive medicinal product No
    D.3.11.9Recombinant medicinal product Yes
    D.3.11.10Medicinal product containing genetically modified organisms Yes
    D.3.11.11Herbal medicinal product No
    D.3.11.12Homeopathic medicinal product No
    D.3.11.13Another type of medicinal product No
    D.8 Information on Placebo
    E. General Information on the Trial
    E.1 Medical condition or disease under investigation
    E.1.1Medical condition(s) being investigated
    MPS IIIB is a devastating lysosomal storage disease, caused by a N-α-acetylglucosaminidase (NAGLU) gene defect. Infants with MPS IIIB appear normal at birth, but the disease is relentlessly progressive, with deterioration of social and adaptive abilities, neurocognitive decline, and premature death. Death typically occurs by end of the second or beginning of the third decade. Quite importantly, there is no treatment currently available for the disease.
    E.1.1.1Medical condition in easily understood language
    Mucopolysaccharidosis type IIIB is a genetic disease in children, caused by the toxicity of an accumulation of substances in the body that generate a progressive deterioration.
    E.1.1.2Therapeutic area Diseases [C] - Congenital, Hereditary, and Neonatal Diseases and Abnormalities [C16]
    MedDRA Classification
    E.1.2 Medical condition or disease under investigation
    E.1.2Version 20.1
    E.1.2Level PT
    E.1.2Classification code 10056890
    E.1.2Term Mucopolysaccharidosis III
    E.1.2System Organ Class 10010331 - Congenital, familial and genetic disorders
    E.1.3Condition being studied is a rare disease Yes
    E.2 Objective of the trial
    E.2.1Main objective of the trial
    The primary objective of the study is to evaluate the long-term safety/tolerability of ABO-101 in patients with MPS IIIB.
    E.2.2Secondary objectives of the trial
    The secondary objective is to evaluate the neurocognitive evolution of patients with MPS IIIB treated with ABO-101.
    E.2.3Trial contains a sub-study No
    E.3Principal inclusion criteria
    • Participants that have completed a prior clinical trial involving the administration of ABO-101.
    • Parent(s)/legal guardian(s) of participant willing and able to complete the informed consent process and comply with study procedures and visit schedule.
    E.4Principal exclusion criteria
    • Planned or current participation in another clinical trial that may confound the safety or efficacy evaluation of ABO-101 during this study.
    • Any other situation that precludes the participant from undergoing procedures required in this study.
    E.5 End points
    E.5.1Primary end point(s)
    Long-term product safety as defined by the incidence, type, and severity of Adverse Events (AEs) and Serious Adverse Events (SAEs).
    E.5.1.1Timepoint(s) of evaluation of this end point
    Safety will be evaluated along the entire trial for 3 years.
    E.5.2Secondary end point(s)
    • Neurocognitive evolution based on Age Equivalent assessments included in the prior clinical trial including:
    - Change from baseline (in prior trial) in the Age Equivalent and Developmental Quotient (DQ) after treatment compared to Natural History Study data calculated by the Mullen Scales of Early Learning or the Kaufman Assessment Battery for Children; Second Edition, based on chronological and developmental age [Time frame: Month 30, 36, 42, 48, 60]
    - Change from baseline (in prior trial) in the Cognitive Age Equivalent and Developmental Quotient after treatment compared to Natural History Study, calculated using the Bayley Scales of Infant and Toddler Development – Third edition or the Kaufman Assessment Battery for Children. Second Edition, based on developmental age [Time Frame: Month 30, 36, 42, 48, 60]
    - Change from baseline(in prior trial) in the Adaptive Age Equivalent score after treatment compared to Natural History Study data, as assessed by parent report using the Vineland Adaptive Behavior Scale II Survey form [Time frame: Month 30, 36, 42, 48, 60]
    • Quality of life based on Pediatric Quality of Life Inventory (PedsQL™ and PedsQL Grastrointestinal Symptom scales-this last one, only applicable for participants who completed these evaluations in the prior clinical trial), Parenting Stress Index, 4th Edition (PSI-4).
    • Evolution on Parental Global Impression Score, Clinical Global Impression Improvement Score and Parent Symptom Score Questionnaire.
    • Long-term immunological responses defined as antibody formation (humoral) and T-cell responses (cellular) against the AAV9 capsid and against the α-N-acetylglucosaminidase (NAGLU) transgene product.
    • Long-term viral load, in applicable cases.
    E.5.2.1Timepoint(s) of evaluation of this end point
    Annually (± 2 months) for three years.
    E.6 and E.7 Scope of the trial
    E.6Scope of the trial
    E.6.1Diagnosis No
    E.6.2Prophylaxis No
    E.6.3Therapy No
    E.6.4Safety Yes
    E.6.5Efficacy Yes
    E.6.6Pharmacokinetic No
    E.6.7Pharmacodynamic No
    E.6.8Bioequivalence No
    E.6.9Dose response No
    E.6.10Pharmacogenetic No
    E.6.11Pharmacogenomic No
    E.6.12Pharmacoeconomic No
    E.6.13Others Yes
    E.6.13.1Other scope of the trial description
    Tolerability
    E.7Trial type and phase
    E.7.1Human pharmacology (Phase I) Yes
    E.7.1.1First administration to humans No
    E.7.1.2Bioequivalence study No
    E.7.1.3Other Yes
    E.7.1.3.1Other trial type description
    Long Term Follow Up
    E.7.2Therapeutic exploratory (Phase II) Yes
    E.7.3Therapeutic confirmatory (Phase III) No
    E.7.4Therapeutic use (Phase IV) No
    E.8 Design of the trial
    E.8.1Controlled No
    E.8.1.1Randomised No
    E.8.1.2Open No
    E.8.1.3Single blind No
    E.8.1.4Double blind No
    E.8.1.5Parallel group No
    E.8.1.6Cross over No
    E.8.1.7Other Yes
    E.8.1.7.1Other trial design description
    Long Term Follow Up
    E.8.2 Comparator of controlled trial
    E.8.2.1Other medicinal product(s) No
    E.8.2.2Placebo No
    E.8.2.3Other No
    E.8.3 The trial involves single site in the Member State concerned Yes
    E.8.4 The trial involves multiple sites in the Member State concerned No
    E.8.5The trial involves multiple Member States Yes
    E.8.5.1Number of sites anticipated in the EEA2
    E.8.6 Trial involving sites outside the EEA
    E.8.6.1Trial being conducted both within and outside the EEA Yes
    E.8.6.2Trial being conducted completely outside of the EEA No
    E.8.6.3If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned
    France
    Germany
    United States
    E.8.7Trial has a data monitoring committee Yes
    E.8.8 Definition of the end of the trial and justification where it is not the last visit of the last subject undergoing the trial
    The end of the clinical trial is defined as the Last Participant Last Visit.
    E.8.9 Initial estimate of the duration of the trial
    E.8.9.1In the Member State concerned years3
    E.8.9.1In the Member State concerned months0
    E.8.9.1In the Member State concerned days0
    E.8.9.2In all countries concerned by the trial years3
    E.8.9.2In all countries concerned by the trial months0
    E.8.9.2In all countries concerned by the trial days0
    F. Population of Trial Subjects
    F.1 Age Range
    F.1.1Trial has subjects under 18 Yes
    F.1.1Number of subjects for this age range: 24
    F.1.1.1In Utero No
    F.1.1.2Preterm newborn infants (up to gestational age < 37 weeks) No
    F.1.1.3Newborns (0-27 days) No
    F.1.1.4Infants and toddlers (28 days-23 months) No
    F.1.1.5Children (2-11years) Yes
    F.1.1.5.1Number of subjects for this age range: 20
    F.1.1.6Adolescents (12-17 years) Yes
    F.1.1.6.1Number of subjects for this age range: 4
    F.1.2Adults (18-64 years) No
    F.1.3Elderly (>=65 years) No
    F.2 Gender
    F.2.1Female Yes
    F.2.2Male Yes
    F.3 Group of trial subjects
    F.3.1Healthy volunteers No
    F.3.2Patients Yes
    F.3.3Specific vulnerable populations Yes
    F.3.3.1Women of childbearing potential not using contraception No
    F.3.3.2Women of child-bearing potential using contraception Yes
    F.3.3.3Pregnant women No
    F.3.3.4Nursing women No
    F.3.3.5Emergency situation No
    F.3.3.6Subjects incapable of giving consent personally Yes
    F.3.3.6.1Details of subjects incapable of giving consent
    These children have severe cognitive problems making them very difficult to understand an explanation about the study and also to sign the informed consent. Based on a expert opinion, unique ICF for parents or legal representatives is proposed.
    F.3.3.7Others No
    F.4 Planned number of subjects to be included
    F.4.1In the member state4
    F.4.2 For a multinational trial
    F.4.2.1In the EEA 16
    F.4.2.2In the whole clinical trial 24
    F.5 Plans for treatment or care after the subject has ended the participation in the trial (if it is different from the expected normal treatment of that condition)
    This is the 3 years follow up study after the participation in previous study where IMP was administered to subject. No additional studies are planned.
    G. Investigator Networks to be involved in the Trial
    N. Review by the Competent Authority or Ethics Committee in the country concerned
    N.Competent Authority Decision Authorised
    N.Date of Competent Authority Decision2021-07-06
    N.Ethics Committee Opinion of the trial applicationFavourable
    N.Ethics Committee Opinion: Reason(s) for unfavourable opinion
    N.Date of Ethics Committee Opinion2021-04-01
    P. End of Trial
    P.End of Trial StatusOngoing
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