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    Summary
    EudraCT Number:2020-002396-35
    Sponsor's Protocol Code Number:XPF-009-301
    National Competent Authority:Italy - Italian Medicines Agency
    Clinical Trial Type:EEA CTA
    Trial Status:Prematurely Ended
    Date on which this record was first entered in the EudraCT database:2021-09-08
    Trial results View 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 ConcernedItaly - Italian Medicines Agency
    A.2EudraCT number2020-002396-35
    A.3Full title of the trial
    A Phase 3 Study of Adjunctive XEN496 in Pediatric Subjects with KCNQ2
    Developmental and Epileptic Encephalopathy
    Studio di fase 3 di XEN496 come trattamento adiuvante in soggetti pediatrici affetti da encefalopatia epilettica e dello sviluppo correlata a KCNQ2
    A.3.1Title of the trial for lay people, in easily understood, i.e. non-technical, language
    Study in pediatric subjects with KCNQ2 Developmental and Epileptic Encephalopathy
    Studio in soggetti pediatrici affetti da encefalopatia epilettica e dello sviluppo correlata a KCNQ2
    A.3.2Name or abbreviated title of the trial where available
    EPIK
    EPIK
    A.4.1Sponsor's protocol code numberXPF-009-301
    A.5.2US NCT (ClinicalTrials.gov registry) numberNCT04639310
    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 SponsorXenon Pharmaceuticals Inc.
    B.1.3.4CountryCanada
    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 supportXenon Pharmaceuticals Inc.
    B.4.2CountryCanada
    B.5 Contact point designated by the sponsor for further information on the trial
    B.5.1Name of organisationXenon Pharmaceuticals Inc.
    B.5.2Functional name of contact pointMedical Affairs
    B.5.3 Address:
    B.5.3.1Street Address200-3650 Gilmore Way
    B.5.3.2Town/ cityBurnaby, BC
    B.5.3.3Post codeV5G 4W8
    B.5.3.4CountryCanada
    B.5.4Telephone number+16044843300
    B.5.5Fax number+16044841336
    B.5.6E-mailXenonCares@xenon-pharma.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/3/20/2332
    D.3 Description of the IMP
    D.3.1Product nameRetigabine
    D.3.2Product code [XEN496]
    D.3.4Pharmaceutical form Capsule
    D.3.4.1Specific paediatric formulation Yes
    D.3.7Routes of administration for this IMPOral use
    D.3.8 to D.3.10 IMP Identification Details (Active Substances)
    D.3.8INN - Proposed INNRETIGABINA
    D.3.9.1CAS number 150812-12-7
    D.3.9.2Current sponsor codeXEN496
    D.3.9.4EV Substance CodeSUB10291MIG
    D.3.10 Strength
    D.3.10.1Concentration unit mg milligram(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number32
    D.3.11 The IMP contains an:
    D.3.11.1Active substance of chemical origin Yes
    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) No
    D.3.11.3.1Somatic cell therapy medicinal product Information not present in EudraCT
    D.3.11.3.2Gene therapy medical product Information not present in EudraCT
    D.3.11.3.3Tissue Engineered Product Information not present in EudraCT
    D.3.11.3.4Combination ATIMP (i.e. one involving a medical device) Information not present in EudraCT
    D.3.11.3.5Committee on Advanced therapies (CAT) has issued a classification for this product Information not present in EudraCT
    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 No
    D.3.11.10Medicinal product containing genetically modified organisms No
    D.3.11.11Herbal medicinal product No
    D.3.11.12Homeopathic medicinal product No
    D.3.11.13Another type of medicinal product No
    D.IMP: 2
    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/3/20/2332
    D.3 Description of the IMP
    D.3.1Product nameRetigabine
    D.3.2Product code [XEN496]
    D.3.4Pharmaceutical form Capsule
    D.3.4.1Specific paediatric formulation Yes
    D.3.7Routes of administration for this IMPOral use
    D.3.8 to D.3.10 IMP Identification Details (Active Substances)
    D.3.8INN - Proposed INNRETIGABINA
    D.3.9.1CAS number 150812-12-7
    D.3.9.2Current sponsor codeXEN496
    D.3.9.4EV Substance CodeSUB10291MIG
    D.3.10 Strength
    D.3.10.1Concentration unit mg milligram(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number3
    D.3.11 The IMP contains an:
    D.3.11.1Active substance of chemical origin Yes
    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) No
    D.3.11.3.1Somatic cell therapy medicinal product Information not present in EudraCT
    D.3.11.3.2Gene therapy medical product Information not present in EudraCT
    D.3.11.3.3Tissue Engineered Product Information not present in EudraCT
    D.3.11.3.4Combination ATIMP (i.e. one involving a medical device) Information not present in EudraCT
    D.3.11.3.5Committee on Advanced therapies (CAT) has issued a classification for this product Information not present in EudraCT
    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 No
    D.3.11.10Medicinal product containing genetically modified organisms No
    D.3.11.11Herbal medicinal product No
    D.3.11.12Homeopathic medicinal product No
    D.3.11.13Another type of medicinal product No
    D.IMP: 3
    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/3/20/2332
    D.3 Description of the IMP
    D.3.1Product nameRetigabine
    D.3.2Product code [XEN496]
    D.3.4Pharmaceutical form Capsule
    D.3.4.1Specific paediatric formulation Yes
    D.3.7Routes of administration for this IMPOral use
    D.3.8 to D.3.10 IMP Identification Details (Active Substances)
    D.3.8INN - Proposed INNRETIGABINA
    D.3.9.1CAS number 150812-12-7
    D.3.9.2Current sponsor codeXEN496
    D.3.9.4EV Substance CodeSUB10291MIG
    D.3.10 Strength
    D.3.10.1Concentration unit mg milligram(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number12
    D.3.11 The IMP contains an:
    D.3.11.1Active substance of chemical origin Yes
    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) No
    D.3.11.3.1Somatic cell therapy medicinal product Information not present in EudraCT
    D.3.11.3.2Gene therapy medical product Information not present in EudraCT
    D.3.11.3.3Tissue Engineered Product Information not present in EudraCT
    D.3.11.3.4Combination ATIMP (i.e. one involving a medical device) Information not present in EudraCT
    D.3.11.3.5Committee on Advanced therapies (CAT) has issued a classification for this product Information not present in EudraCT
    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 No
    D.3.11.10Medicinal product containing genetically modified organisms No
    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
    D.8 Placebo: 1
    D.8.1Is a Placebo used in this Trial?Yes
    D.8.3Pharmaceutical form of the placeboCapsule
    D.8.4Route of administration of the placeboOral use
    E. General Information on the Trial
    E.1 Medical condition or disease under investigation
    E.1.1Medical condition(s) being investigated
    KCNQ2 Developmental and Epileptic Encephalopathy
    encefalopatia epilettica e dello sviluppo correlata a KCNQ2
    E.1.1.1Medical condition in easily understood language
    KCNQ2 Developmental and Epileptic Encephalopathy
    encefalopatia epilettica e dello sviluppo correlata a KCNQ2
    E.1.1.2Therapeutic area Diseases [C] - Nervous System Diseases [C10]
    MedDRA Classification
    E.1.2 Medical condition or disease under investigation
    E.1.2Version 20.0
    E.1.2Level PT
    E.1.2Classification code 10077380
    E.1.2Term Epileptic encephalopathy
    E.1.2System Organ Class 10029205 - Nervous system disorders
    E.1.3Condition being studied is a rare disease Yes
    E.2 Objective of the trial
    E.2.1Main objective of the trial
    To evaluate the efficacy of XEN496 as adjunctive therapy in reducing seizure frequency compared to placebo in pediatric subjects with KCNQ2-DEE
    Valutare l’efficacia di XEN496 come terapia adiuvante nel ridurre la frequenza delle crisi convulsive dal basale, rispetto al placebo, in soggetti pediatrici affetti da KCNQ2-DEE.
    E.2.2Secondary objectives of the trial
    • To evaluate the proportion of pediatric subjects with KCNQ2-DEE who
    achieve a >=50% reduction from baseline in seizure frequency when
    taking XEN496, compared with placebo.
    • To evaluate Caregiver Global Impression of Change (CaGI-C) and
    Caregiver Global Impression of Change (CaGI-S) scores in pediatric subjects with
    KCNQ2-DEE taking XEN496, compared with placebo.
    • Valutare la proporzione di soggetti affetti da KCNQ2-DEE che raggiunge una riduzione >=50% dal basale nella frequenza delle crisi convulsive durante l’assunzione di XEN496, rispetto al placebo.
    • Valutare i punteggi delle scale Caregiver Global Impression of Change (CaGI-C) e Caregiver Global Impression of Severity (CaGI-S) in soggetti pediatrici affetti da KCNQ2-DEE che assumono XEN496, rispetto al placebo.
    E.2.3Trial contains a sub-study No
    E.3Principal inclusion criteria
    1. Parent(s) or guardian(s) fully comprehends the nature and risks of
    the study and is able and willing to give informed consent in writing,
    prior to the subject entering the study, in accordance with local legal
    requirements.
    2. Male or female subjects aged from 1 month (44 weeks postmenstrual
    age) to less than 6 years, with a body weight of =3.0 kg, at screening
    (Visit 1).
    3. Documented evidence of a genetic test result from an appropriately
    accredited laboratory, consistent with a diagnosis of KCNQ2-DEE
    (pathogenic, likely pathogenic, variant of unknown significance, or
    inconclusive but unlikely to support an alternate diagnosis).
    4. Seizure onset within 2 weeks after birth and EEG and documented
    clinical history consistent with KCNQ2-DEE.
    5. Magnetic resonance imaging has been performed and is without
    evidence of structural abnormalities, including but not limited to,
    hypoxia, hypoxia-ischemia, ischemia (arterial or venous), stroke,
    sinovenous thrombosis, intracranial hemorrhage, or focal or global brain
    malformation.
    6. A sufficient number of focal tonic or other countable motor seizures in
    the month (28 days) prior to screening, documented by caregiver report
    or investigator medical notes.
    7. Subjects can be taking 1 and no more than the maximum required
    number concomitant ASMs. All doses must be stable for the required
    duration prior to screening and expected to be maintained throughout
    the duration of the study (until the end of the treatment period).
    8. VNS is allowed and will not be counted as a concomitant ASM. The
    VNS device must be implanted for at least 6 months before before
    screening, and the device settings must be stable for the required
    duration prior to screening and throughout the duration of the study.
    Use of the VNS device magnet is allowed.
    9. Ketogenic diet is allowed and will not be counted as a concomitant
    ASM. The subject must be on a stable dietary regimen that produces
    ketosis for the required period of time prior to screening, and expected
    to be maintained throughout the study.
    10. In the opinion of the investigator, the caregiver is able and willing to
    maintain an accurate and complete daily diary to monitor seizures,
    diaper count (when required) and administration of study drug and
    concomitant medications.
    1. Genitore(i) o tutore(i) comprende appieno la natura e i rischi dello studio ed è in grado e disposto a fornire il consenso informato per iscritto, prima che il soggetto entri nello studio, in conformità con i requisiti della legislazione locale requisiti.
    2.soggetti di sesso femminile o maschile di età compresa tra 1 mese (44 settimane dalla data dell’ultima mestruazione della madre) a meno di 6 anni, con un peso corporeo di =3,0 kg, allo screening (Visita 1);
    3.documentata evidenza di risultato di un test genetico da un laboratorio debitamente accreditato, coerente con diagnosi di KCNQ2-DEE (patogena, simil-patogena, variante di significatività non nota o inconclusiva ma inverosimile da supportare e una diagnosi alternativa);
    4.insorgenza delle crisi convulsive 2 settimane dopo la nascita ed EEG e anamnesi clinica documentata coerenti con KCNQ2-DEE;
    5.esecuzione di una risonanza magnetica che non mostri evidenze di anomalie strutturali, inclusi a titolo esemplificativo, ipossia, ipossia-ischemia, ischemia (arteriosa o venosa), ictus, trombosi del seno venoso, emorragia intracranica o malformazione cerebrale generalizzata o focale;
    6.numero sufficiente di crisi convulsive focali toniche o altre crisi convulsive motorie numerabili nel mese (28 giorni) precedente lo screening, documentate dal rapporto del caregiver o dalle annotazioni mediche dello sperimentatore;
    7.I soggetti possono assumere 1 e non più del massimo richiesto numero di ASM concomitanti. Tutte le dosi devono essere stabili per la necessaria durata prima dello screening e dovranno essere mantenute per tutta la durata dello studio (fino alla fine del periodo di trattamento).
    8.la stimolazione del nervo vago (VNS) è concessa e non sarà ritenuta un ASM concomitante. Il dispositivo VNS deve essere impiantato da almeno 6 mesi prima dello screening e le impostazioni del dispositivo devono essere stabili per la durata necessaria prima dello screening e per tutta la durata dello studio. È concesso l’utilizzo del magnete del dispositivo VNS;
    9.la dieta chetogenica è concessa e non sarà ritenuta un ASM concomitante. Il soggetto deve seguire uno schema alimentare stabile che produca chetosi per il periodo di tempo richiesto prima dello screening e dovrà mantenerlo per tutta la durata dello studio.
    10.Secondo lo sperimentatore, il caregiver è in grado e disposto a mantenere un diario giornaliero accurato e completo per monitorare le crisi, conta dei pannolini (quando richiesto) e somministrazione del farmaco in studio e farmaci concomitanti.
    E.4Principal exclusion criteria
    1. Presence of a pathogenic or likely pathogenic variant in an additional
    gene associated with other epilepsy syndromes.
    2. Presence of a known gain-of-function variant in the KCNQ2 gene, or
    clinical characteristics consistent with previously reported pathogenic
    gain-of-function variants in the KCNQ2 gene, such as subjects with
    infantile spasms without a history of neonatal-onset seizures.
    3. Seizures secondary to infection, neoplasia, demyelinating disease,
    degenerative neurological disease, or CNS disease deemed progressive,
    metabolic illness, or progressive degenerative disease.
    4. Confirmed diagnosis of infantile spasms within the past month prior to
    screening.
    5. History or presence of any significant medical or surgical condition or
    uncontrolled medical illness at screening including, but not limited to,
    cardiovascular, gastrointestinal, hematologic, hepatic, ocular,
    pulmonary, renal, or urogenital systems, or other conditions that would
    not justify the subject's participation in the study, as determined by the
    investigator's risk benefit assessment.
    6. QT interval corrected for heart rate by Fridericia's formula (QTcF) of
    >440 msec. In addition, subjects with a history of arrhythmia, prolonged
    QT, heart disease or subjects taking medications known to increase the
    QT interval.
    7. History of hyperbilirubinemia, which lasts longer than 1 week will
    require exclusion of hepatic disease before entering the study.
    8. History of bilirubin-induced neurological dysfunction.
    9. Current disturbance of micturition or known urinary obstructions or
    history of bladder or urinary dysfunction including abnormal post-void
    residual bladder ultrasound, vesicoureteral reflux, urinary retention, or
    required urinary catheterization in the preceding 6 months.
    10. Subjects who are known to have a terminal illness.
    11. Any clinically significant laboratory abnormalities or clinically
    significant abnormalities on pre-study physical examination, vital signs,
    or ECG that in the judgment of the investigator indicates a medical
    problem that would preclude study participation.
    12. Subjects who are planned to begin to follow a ketogenic or other
    specialized dietary therapy during the study.
    13. Caregiver history of chronic noncompliance with their child's
    prescribed drug regimens that has not been corrected.
    14. Exposure to any other investigational drug or device within 5 halflives or 30 days prior to screening (Visit 1), whichever is longer or plans to participate in another drug or device trial at any time during the study.
    15. Concurrent enrollment in any other type of medical research judged
    by the investigator not to be scientifically or medically compatible with this study.
    16. Subjects using felbamate who have presented with clinically
    significant abnormalities and/or hepatic dysfunction during felbamate
    treatment, and subjects who have taken felbamate for less than 6 months prior to screening
    17. Subjects who are currently taking adrenocorticotropic hormone.
    18. Subjects who did not tolerate ezogabine when taken previously.
    1.presenza di una variante patogena o simil-patogena in un ulteriore gene associata ad altre sindromi epilettiche;
    2.presenza di una nota variante con acquisizione di funzione nel gene KCNQ2 o caratteristiche cliniche coerenti con varianti con acquisizione di funzione patogene precedentemente segnalate nel gene KCNQ2, come soggetti con spasmi infantili senza anamnesi di crisi convulsive con insorgenza neonatale;
    3.crisi convulsive secondarie a infezione, neoplasia, malattia demielinizzante, malattia neurodegenerativa o malattia del sistema nervoso centrale ritenuta progressiva, malattia metabolica o malattia degenerativa progressiva;
    4.diagnosi confermata di spasmi infantili entro l’ultimo mese prima dello screening;
    5.anamnesi o presenza di qualsiasi condizione medica o chirurgica significativa o patologia clinica non controllata allo screening, incluse a titolo esemplificativo, malattia cardiovascolare, gastrointestinale, ematologica, epatica, oculare, polmonare, renale o dei sistemi urogenitali o altre condizioni che non giustificherebbero la partecipazione del soggetto allo studio, come stabilito dalla valutazione del rischio-beneficio dello sperimentatore;
    6.intervallo QT corretto per frequenza cardiaca dalla formula di Fridericia (QTcF) di >440 msec. Inoltre, soggetti con anamnesi di aritmia, QT prolungato, cardiopatia o soggetti che assumono farmaci noti per aumentare l’intervallo QT;
    7.un’anamnesi di iperbilirubinemia che dura più di 1 settimana richiederà l’esclusione di un’epatopatia prima dell’ingresso nello studio;
    8.anamnesi di disfunzione neurologica indotta da bilirubina;
    9.attuale disturbo della minzione o note ostruzioni urinarie o anamnesi di disfunzione urinaria o della vescica, inclusi ecografia della vescica con residuo post-minzionale anormale, reflusso vescico-ureterale, ritenzione urinaria o necessità di cateterizzazione urinaria nei 6 mesi precedenti;
    10. Soggetti noti per avere una malattia terminale.
    11. Qualsiasi anomalia di laboratorio clinicamente significativa o anomalie clinicamente significative all'esame obiettivo pre-studio, segni vitali, o ECG che a giudizio dello sperimentatore indicano un problema medico che precluderebbe la partecipazione allo studio.
    12.soggetti che dovrebbero iniziare a seguire una dieta chetogenica o altre terapie alimentari specializzate durante lo studio;
    13. Storia dei caregivers di non aderenza cronica con i regimi di farmaci prescritti ai loro bambini che non sono stati corretti.
    14. Esposizione a qualsiasi altro farmaco o dispositivo sperimentale entro 5 emivite o 30 giorni prima dello screening (Visita 1), a seconda di quale sia più lungo o pianificato
    partecipare a un altro studio su un farmaco o un dispositivo in qualsiasi momento durante lo studio.
    15. Iscrizione concomitante a qualsiasi altro tipo di ricerca medica giudicata dallo sperimentatore non essere scientificamente o medicamente compatibile con questo studio.
    16.soggetti che usano felbamato che hanno manifestato anomalie clinicamente significative e/o disfunzione epatica durante il trattamento con felbamato e soggetti che hanno assunto felbamato per meno di 6 mesi prima dello screening;
    17.soggetti che stanno assumendo l’ormone adrenocorticotropo.
    18.Soggetti che non hanno tollerato l'ezogabina quando assunta in precedenza.
    E.5 End points
    E.5.1Primary end point(s)
    Percent change from baseline in monthly (28 day) countable motor
    seizure frequency during the blinded treatment period, as recorded by
    caregivers in a daily seizure diary.
    variazione percentuale dal basale nella frequenza mensile (28 giorni) delle crisi convulsive motorie numerabili durante il periodo di trattamento in cieco, secondo quanto registrato dai caregiver in un diario giornaliero delle crisi convulsive.
    E.5.1.1Timepoint(s) of evaluation of this end point
    The baseline average frequency (per 28 days) will use seizures counted
    during the baseline period, consist of all evaluable data up to 6 weeks
    prior to the date of 1st study drug date. The double-blind treatment
    period will start from the 1st study drug date through Visit 22 (end of
    treatment study visit), or double-blind treatment termination date,
    whichever is earlier. Also, seizure data collected after the change in
    background antiseizure medication (ASM) will be excluded as well.
    La frequenza media di base (per 28 giorni) utilizzerà le crisi conteggiate durante il periodo di riferimento, SI tratta di tutti i dati valutabili fino a 6 settimane
    prima della data del primo giorno del farmaco in studio. Il periodo di trattamento in doppio cieco inizierà dalla 1° data di farmaco in studio fino alla Visita 22 (visita di fine dello studio), o alla data di termine del trattamento in doppio cieco, qualunque giunga prima.
    Inoltre, saranno esclusi anche i dati sulle crisi raccolti dopo il cambio di terapia anticonvulsiva di base (ASM).
    E.5.2Secondary end point(s)
    • Proportion of subjects with >=50% reduction in monthly (28 day)
    seizure frequency from baseline.
    • Caregiver Global Impression of Changescores (CaGI-C) for the
    subject's overall condition and for seizures.
    • Change from baseline in Caregiver Global Impression of Severity
    (CaGI-S) for the subject's overall condition and for seizures.
    • proporzione di soggetti con >=50% di riduzione nella frequenza mensile (28 giorni) delle crisi convulsive dal basale.
    • punteggi CaGI-C per la condizione complessiva del soggetto e per le crisi convulsive;
    • variazione dal basale nel punteggio CaGI-S per la condizione complessiva del soggetto e per le crisi convulsive.
    E.5.2.1Timepoint(s) of evaluation of this end point
    • The key secondary efficacy endpoint is the proportion of subjects with
    =50% reduction in seizure frequency from baseline, derived based on
    the primary endpoint of percent change from baseline in monthly seizure
    frequency. The analysis will also be performed based on data in
    maintenance period only.
    • The CaGI-C will be summarized at each of the post-baseline visit.
    • The CaGI-S for overall condition and seizure severity will be
    summarized by treatment group at baseline and each of the postbaseline visit, by assessing the number and percent of patients who changed from baseline to each of the post-baseline categories.
    L'endpoint secondario chiave di efficacia è la proporzione di soggetti con riduzione del 50% della frequenza delle crisi rispetto al basale, derivata in base a
    l'endpoint primario della variazione percentuale rispetto ala frequenzal basale nelle crisi mensili.
    L'analisi sarà eseguita anche sulla base dei dati nel solo periodo di mantenimento.
    • Il CaGI-C sarà riassunto ad ogni visita post-baseline.
    • Il CaGI-S per le condizioni generali e la gravità delle convulsioni sarà riassunto per gruppo di trattamento al basale e ciascuna delle visite post-basale, valutando il numero e la percentuale di pazienti che sono passati dal basale a ciascuna delle categorie post-basale.
    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 Yes
    E.6.4Safety Yes
    E.6.5Efficacy Yes
    E.6.6Pharmacokinetic Yes
    E.6.7Pharmacodynamic Yes
    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
    tollerabilità
    E.7Trial type and phase
    E.7.1Human pharmacology (Phase I) No
    E.7.1.1First administration to humans No
    E.7.1.2Bioequivalence study No
    E.7.1.3Other No
    E.7.1.3.1Other trial type description
    E.7.2Therapeutic exploratory (Phase II) No
    E.7.3Therapeutic confirmatory (Phase III) Yes
    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
    in aperto
    open
    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.8.2.4Number of treatment arms in the trial2
    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.8.4.1Number of sites anticipated in Member State concerned4
    E.8.5The trial involves multiple Member States Yes
    E.8.5.1Number of sites anticipated in the EEA15
    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 Information not present in EudraCT
    E.8.6.3If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned
    Australia
    Canada
    China
    United States
    Belgium
    France
    Germany
    Italy
    Poland
    Spain
    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 study is defined as completion of the last visit for the last subject in this study.
    La fine dello studio è definita come il completamento dell'ultima visita perl'ultimo soggetto di questo studio.
    E.8.9 Initial estimate of the duration of the trial
    E.8.9.1In the Member State concerned years1
    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 years1
    E.8.9.2In all countries concerned by the trial months9
    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.1.1.1In 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) Yes
    F.1.1.4.1Number of subjects for this age range: 20
    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) No
    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 No
    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
    parent(s)/guardian(s) agreement for their child to participate in the study is required
    è richiesto l'accordo del genitore(i)/tutore(i) per la partecipazione del proprio figlio al lo studio
    F.3.3.7Others No
    F.4 Planned number of subjects to be included
    F.4.1In the member state8
    F.4.2 For a multinational trial
    F.4.2.1In the EEA 20
    F.4.2.2In the whole clinical trial 40
    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)
    Subjects may be considered for an open-label long-term extension (under a separate study protocol) if they meet the protocol-specified requirements.
    I soggetti possono essere presi in considerazione per un'estensione a lungo termine in aperto (con un protocollo di studio separato) se soddisfano i requisiti specifici del protocollo
    .
    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 Decision2021-11-29
    N.Ethics Committee Opinion of the trial applicationFavourable
    N.Ethics Committee Opinion: Reason(s) for unfavourable opinion
    N.Date of Ethics Committee Opinion2022-01-24
    P. End of Trial
    P.End of Trial StatusPrematurely Ended
    P.Date of the global end of the trial2023-05-23
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