E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Glycogen storage disease type II |
Glicogenosi di tipo II |
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E.1.1.1 | Medical condition in easily understood language |
Glycogen storage disease type II |
Glicogenosi di tipo II |
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E.1.1.2 | Therapeutic area | Diseases [C] - Congenital, Hereditary, and Neonatal Diseases and Abnormalities [C16] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10053185 |
E.1.2 | Term | Glycogen storage disease type II |
E.1.2 | System Organ Class | 10010331 - Congenital, familial and genetic disorders |
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E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To determine the effect of avalglucosidase alfa treatment on survival and invasive ventilator-free survival of IOPD participants less than or equal to 6 months of age after 52 weeks of treatment. |
Determinare l’effetto del trattamento con avalglucosidasi alfa sulla sopravvivenza e sulla sopravvivenza libera da ventilazione invasiva dei/delle partecipanti con IOPD di età inferiore o pari a 6 mesi dopo 52 settimane di trattamento. |
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E.2.2 | Secondary objectives of the trial |
- To determine the effect of avalglucosidase alfa treatment on survival and invasive ventilator-free survival at 12 and 18 months of age, as well the change in left ventricular mass Z-score (LVM Z-score); Alberta Infant Motor Scale (AIMS) score; body length, body weight, and head circumference Z scores; and urinary Hex4 at Week 52 - To determine safety, tolerability, and immunogenicity of avalglucosidase alfa - To determine the PK profile at Week 12 and Week 52 |
-Determinare l’effetto del trattamento con avalglucosidasi alfa sulla sopravvivenza e sulla sopravvivenza libera da ventilazione invasiva a 12 e 18 mesi, nonché la variazione del punteggio LVM-Z; punteggio AIMS; altezza, peso corporeo e Z-score della circonferenza cranica; Hex4 urinario alla Settimana 52 -Determinare sicurezza, tollerabilità e immunogenicità di avalglucosidasi alfa - Determinare il profilo PK alla Settimana 12 e alla Settimana 52 |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
-Participants must have confirmed diagnosis of infantile-onset Pompe disease defined as: the presence of 2 lysosomal acid a-glucosidase (GAA) pathogenic variants and a documented GAA deficiency from blood,skin, or muscle tissue; or the presence of 1 GAA pathogenic variant and a documented GAA deficiency from blood, skin and muscle tissue in 2 separate samples (from either 2 different tissues or from the same tissue but at 2 different sampling dates) - Participants must have established cross-reactive immunological material (CRIM) status available prior to enrollment. - Participants must have cardiomyopathy at the time of diagnosis: ie,LVMI equivalent to mean age specific LVMI +1 standard deviation for participants diagnosed by newborn screening or sibling screening; +2 standard deviation for participants diagnosed by clinical evaluation. - Parents or legally authorized representative(s) must be capable of giving signed informed consent |
-I/Le partecipanti devono presentare una diagnosi confermata di malattia di Pompe a esordio infantile definita come: presenza di 2 varianti patogene di GAA e un deficit documentato di GAA nel sangue, pelle o tessuto muscolare; o la presenza di 1 variante patogena di GAA e un deficit documentato di GAA in 2 campioni distinti di sangue, pelle e tessuto muscolare (da 2 diversi tessuti o dallo stesso tessuto ma a 2 diverse date di campionamento; - I/Le partecipanti devono presentare del materiale immunologico cross-reattivo (CRIM) accertato prima dell’arruolamento; - I/Le partecipanti devono presentare cardiomiopatia al momento della diagnosi: ovvero, LVMI equivalente all’LVMI specifico per età media come pubblicato da Vogel • +1 deviazione standard per i/le partecipanti diagnosticati/e mediante screening neonatale o screening di fratelli/sorelle; • +2 deviazione standard per i/le partecipanti diagnosticati mediante valutazione clinica. - Genitori o il/i rappresentante/i legale/i deve/devono essere in grado di fornire il consenso informato firmato |
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E.4 | Principal exclusion criteria |
Participants are excluded from the study if any of the following criteriaapply: - Participants with symptoms of respiratory insufficiency, including any ventilation use (invasive or noninvasive) at the time of enrollment. - Participants with major congenital abnormality. - Participants with clinically significant organic disease (with the exception of symptoms relating to Pompe disease). - Participant received enzyme-replacement therapy (ERT) with recombinant human acid a glucosidase (rhGAA) from any source. - Participant who has previously been treated in any clinical trial of avalglucosidase alfa. - Participant not suitable for participation, whatever the reason, as judged by the Investigator, including medical or clinical conditions, or participants potentially at risk of noncompliance to study procedures. |
In presenza di uno dei seguenti criteri i partecipanti saranno esclusi dallo studio: Condizioni mediche - Partecipanti con sintomi di insufficienza respiratoria incluso qualsiasi utilizzo di ventilazione (invasiva o non invasiva) al momento dell’arruolamento. - Partecipanti con importanti anomalie congenite - Partecipanti con malattia organica clinicamente significativa (a eccezione dei sintomi relativi alla malattia di Pompe) - Partecipanti che abbiano ricevuto Terapia Enzimatica Sostitutiva con a-glucosidasi acida umana ricombinante( rhGAA) da qualsiasi fonte - Partecipanti precedentemente trattati in qualsiasi sperimentazione clinica su avalglucosidasi alfa - Partecipanti non idonei alla partecipazione, a giudizio dello sperimentatore, a prescindere dal motivo, comprese condizioni mediche o cliniche, o partecipanti potenzialmente a rischio di non aderenza alle procedure dello studio. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Proportion of participants who are alive and free of invasive ventilation at Week 52 |
Percentuale di partecipanti in vita e liberi/e da ventilazione invasiva alla Settimana 52 |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
1/ Proportion of participants who are alive and free of invasive ventilation at 12 and 18 months of age 2/ Proportion of participants who are alive at Week 52 3/ Proportion of participants who are alive at 12 and 18 months of age 4/ Proportion of participants who are free of ventilator use and free of supplemental oxygen use at Week 52 5/ Change from baseline to Week 52 in LVM-Z score 6/ Change from baseline to Week 52 in AIMS score 7/ Change from baseline to Week 52 in body length Z-scores 8/ Change from baseline to Week 52 in body weight Z-scores 9/ Change from baseline to Week 52 in head circumference Z-scores 10/ Change from baseline to Week 52 in body lenght percentiles 11/ Change from baseline to Week 52 in body weight percentiles 12/ Change from baseline to Week 52 in head circumference percentiles 13/ Change from baseline to Week 52 in urinary Hex4 14/ Assessment of treatment-emergent adverse events (TEAE) including infusion-associated reactions (IAR) 15/ Physical examination 16/ Clinical laboratory evaluations 17/ Vital signs measurements 18/ 12-lead electrocardiogram (ECG) 19/ Immunogenicity assessments 20/ Plasma concentration of avalglucosidase alfa |
1/ Percentuale di partecipanti in vita e liberi/e da ventilazione invasiva a 12 e 18 mesi di età 2/ Percentuale di partecipanti in vita alla Settimana 52 3/ Percentuale di partecipanti in vita a 12 e 18 mesi di età 4/ Percentuale di partecipanti liberi/a da utilizzo di ventilatore e liberi/e da utilizzo di ossigeno supplementare alla Settimana 52 5/ Variazione rispetto al basale del punteggio LVM-Z alla Settimana 52 6/ Variazione rispetto al basale del punteggio AIMS alla Settimana 52 7/Variazione rispetto al basale alla Settimana 52 nei Z-score di crescita corporea 8/Variazione rispetto al basale alla Settimana 52 nei Z-score di crescita corporea 9/Variazione rispetto al basale alla Settimana 52 nei Z-score di circonferenza cranica 10/Variazione rispetto al basale alla Settimana 52 nei percentili di lunghezza corporea 11/ariazione rispetto al basale alla Settimana 52 nei percentili di peso corporeo 12/ Variazione rispetto al basale alla Settimana 52 nei percentili di circonferenza cranica 13/ Variazione rispetto al basale alla Settimana 52 dell’Hex4 urinario 14/ Valutazione di TEAE, comprese le IAR 15/ Esame fisico 16/ Valutazioni cliniche di laboratorio 17/ Misurazione dei parametri vitali 18/ ECG a 12 derivazioni 19/ Valutazioni di immunogenicità 20/ Concentrazione plasmatica di avalglucosidase alfa |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
From 1/ to 13/ : Week 52 14/: week 52, week 212 From 15/ to 19/: Week 52, Week 208 20/ : at Day 1, Week 12, and Week 52 |
Da 1/ a 13/: settimana 52 14/: settimana 52 e settimana 212 Da 15/a 19/: settimana 52 e settimana 208 20/: al giorno 1, alla settimana 12 e alla settimana 52 |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 1 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 2 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 9 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | Information not present in EudraCT |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
China |
Taiwan |
United States |
Belgium |
France |
Germany |
Italy |
Netherlands |
United Kingdom |
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E.8.7 | Trial 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
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 6 |
E.8.9.1 | In the Member State concerned months | 1 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 6 |
E.8.9.2 | In all countries concerned by the trial months | 1 |
E.8.9.2 | In all countries concerned by the trial days | 0 |