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    Clinical Trial Results:
    An Open-label Extension Study to Evaluate the Safety and Tolerability of Perampanel (E2007) Administered as an Adjunctive Therapy in Epilepsy Subjects

    Summary
    EudraCT number
    2016-004945-10
    Trial protocol
    Outside EU/EEA  
    Global end of trial date
    21 Sep 2016

    Results information
    Results version number
    v1(current)
    This version publication date
    21 Feb 2018
    First version publication date
    21 Feb 2018
    Other versions

    Trial information

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    Trial identification
    Sponsor protocol code
    E2007-J000-341
    Additional study identifiers
    ISRCTN number
    -
    US NCT number
    NCT02427607
    WHO universal trial number (UTN)
    -
    Sponsors
    Sponsor organisation name
    Eisai Co., Ltd.
    Sponsor organisation address
    4-6-10 Koishikawa, Bunkyo-Ku, Tokyo, Japan,
    Public contact
    Customer Joy Department. EJ, Eisai Co., ltd, 81-3 3817-5245, esi_medinfo@eisai.com
    Scientific contact
    Customer Joy Department. EJ, Eisai Co., ltd, 81-3 3817-5245, esi_medinfo@eisai.com
    Paediatric regulatory details
    Is trial part of an agreed paediatric investigation plan (PIP)
    Yes
    EMA paediatric investigation plan number(s)
    EMEA-000467-PIP01-08
    Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial?
    No
    Does article 46 of REGULATION (EC) No 1901/2006 apply to this trial?
    No
    Results analysis stage
    Analysis stage
    Final
    Date of interim/final analysis
    09 Nov 2016
    Is this the analysis of the primary completion data?
    Yes
    Primary completion date
    21 Sep 2016
    Global end of trial reached?
    Yes
    Global end of trial date
    21 Sep 2016
    Was the trial ended prematurely?
    No
    General information about the trial
    Main objective of the trial
    To evaluate the safety and tolerability of perampanel given as an adjunctive therapy in participants with epilepsy. This study will be continued until perampanel is commercially available.
    Protection of trial subjects
    This study was conducted in accordance with standard operating procedures (SOPs) of the sponsor (or designee), which are designed to ensure adherence to Good Clinical Practice (GCP) guidelines as required by the following: - Principles of the World Medical Association Declaration of Helsinki (World Medical Association, 2008) - International Council on Harmonisation (ICH) E6 Guideline for GCP (CPMP/ICH/135/95) of the European Agency for the Evaluation of Medicinal Products, Committee for Proprietary Medicinal Products, International Council for Harmonisation of Technical Requirements for Registration of Pharmaceuticals for Human Use - Title 21 of the United States (US) Code of Federal Regulations (US 21 CFR) regarding clinical studies, including Part 50 and Part 56 concerning informed subject consent and Institutional Review Board (IRB) regulations and applicable sections of US 21 CFR Part 312 - European GCP Directive 2005/28/EC and Clinical Trial Directive 2001/20/EC for studies conducted within any European Union (EU) country. All suspected unexpected serious adverse reactions were reported, as required, to the Competent Authorities of all involved EU member states. - Article 14, Paragraph 3, and Article 80-2 of the Pharmaceutical Affairs Law (Law No. 145, 1960) for studies conducted in Japan, in addition to Japan’s GCP Subject Information and Informed Consent.
    Background therapy
    -
    Evidence for comparator
    -
    Actual start date of recruitment
    12 May 2015
    Long term follow-up planned
    No
    Independent data monitoring committee (IDMC) involvement?
    No
    Population of trial subjects
    Number of subjects enrolled per country
    Country: Number of subjects enrolled
    Japan: 7
    Worldwide total number of subjects
    7
    EEA total number of subjects
    0
    Number of subjects enrolled per age group
    In utero
    0
    Preterm newborn - gestational age < 37 wk
    0
    Newborns (0-27 days)
    0
    Infants and toddlers (28 days-23 months)
    0
    Children (2-11 years)
    0
    Adolescents (12-17 years)
    1
    Adults (18-64 years)
    5
    From 65 to 84 years
    1
    85 years and over
    0

    Subject disposition

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    Recruitment
    Recruitment details
    -

    Pre-assignment
    Screening details
    This study was conducted at 8 centers in Japan during the period of 12 May 2015 to 21 Sep 2016. E2007-J000-341 is an open-label extension of E2007-G000-332.

    Period 1
    Period 1 title
    Overall Study (overall period)
    Is this the baseline period?
    Yes
    Allocation method
    Randomised - controlled
    Blinding used
    Not blinded

    Arms
    Arm title
    Perampanel
    Arm description
    Participants started the study with the dose that they were receiving at the end of their participation in the previously participated Study E2007-G000-332 (Study 332) [NCT02307578]. Doses of perampanel were allowed to be adjusted based on clinical judgment. A minimum perampanel dose of 2 milligram (mg) per day was required to continue in the study. The maximum daily dose of perampanel permitted was 12 mg per day.
    Arm type
    Experimental

    Investigational medicinal product name
    Perampanel
    Investigational medicinal product code
    E2007
    Other name
    Pharmaceutical forms
    Tablet
    Routes of administration
    Oral use
    Dosage and administration details
    A minimum perampanel dose of 2 mg per day was administered orally with the maximum daily dose of perampanel permitted was 12 mg per day. Doses of perampanel were allowed to be adjusted based on clinical judgment.

    Number of subjects in period 1
    Perampanel
    Started
    7
    Completed
    6
    Not completed
    1
         Consent withdrawn by subject
    1

    Baseline characteristics

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    Baseline characteristics reporting groups
    Reporting group title
    Overall Study
    Reporting group description
    -

    Reporting group values
    Overall Study Total
    Number of subjects
    7 7
    Age categorical
    Units: Subjects
        In utero
    0
        Preterm newborn infants (gestational age < 37 wks)
    0
        Newborns (0-27 days)
    0
        Infants and toddlers (28 days-23 months)
    0
        Children (2-11 years)
    0
        Adolescents (12-17 years)
    0
        Adults (18-64 years)
    0
        From 65-84 years
    0
        85 years and over
    0
    Age continuous
    Safety analysis set included all participants who signed informed consent and received at least one dose of study drug, and had at least one post-dose safety assessment in Study 341.
    Units: years
        arithmetic mean (standard deviation)
    35.3 ( 19.20 ) -
    Gender categorical
    Units: Subjects
        Female
    3 3
        Male
    4 4

    End points

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    End points reporting groups
    Reporting group title
    Perampanel
    Reporting group description
    Participants started the study with the dose that they were receiving at the end of their participation in the previously participated Study E2007-G000-332 (Study 332) [NCT02307578]. Doses of perampanel were allowed to be adjusted based on clinical judgment. A minimum perampanel dose of 2 milligram (mg) per day was required to continue in the study. The maximum daily dose of perampanel permitted was 12 mg per day.

    Primary: Number of Participants with Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs) as a Measure of Safety and Tolerability of Perampanel

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    End point title
    Number of Participants with Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs) as a Measure of Safety and Tolerability of Perampanel [1]
    End point description
    Safety was assessed by monitoring adverse events (AEs), withdrawal from treatment, clinical laboratory tests (chemistry), vital signs, and weight. TEAEs were defined as AEs that emerged from the first dose of study drug to the last visit of Study 341 or on or after 30 days since the last dose of study drug in Study 341, whichever comes later, having been absent at pretreatment (Baseline of Study 332). A markedly abnormal clinical chemistry laboratory value was defined as a laboratory result that worsened in severity to meet modified National Cancer Institute (NCI) toxicity criteria of Grade 2 or higher on treatment. Treatment-related TEAEs were defined as AEs that were considered by the investigator to be possibly or probably related to study treatment. SAEs were defined as any untoward medical occurrence that at any dose; resulted in death, disability/incapacity, birth defect, required inpatient hospitalization or prolongation of existing hospitalization, or was life-threatening.
    End point type
    Primary
    End point timeframe
    From first dose of study drug until perampanel was commercially available, up to approximately 1 year 5 months
    Notes
    [1] - No statistical analyses have been specified for this primary end point. It is expected there is at least one statistical analysis for each primary end point.
    Justification: Statistic analysis not performed
    End point values
    Perampanel
    Number of subjects analysed
    7
    Units: Participants
    number (not applicable)
        Non-Serious TEAEs
    6
        Treatment-related TEAEs
    0
        Severe TEAEs
    0
        TEAEs leading to study drug dose adjustment
    0
        Serious TEAE
    0
    No statistical analyses for this end point

    Adverse events

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    Adverse events information
    Timeframe for reporting adverse events
    From first dose of study drug until perampanel was commercially available, up to approximately 1 year 5 months
    Adverse event reporting additional description
    Treatment-emergent adverse events (TEAEs) and serious adverse events were reported. The safety analysis set included all participants who signed informed consent and received at least one dose of study drug, and had at least one post-dose safety assessment in Study 341.
    Assessment type
    Systematic
    Dictionary used for adverse event reporting
    Dictionary name
    MedDRA
    Dictionary version
    19.0
    Reporting groups
    Reporting group title
    Perampanel
    Reporting group description
    Participants started the study with the dose that they were receiving at the end of their participation in the previously participated Study E2007-G000-332 (Study 332) [NCT02307578]. Doses of perampanel were allowed to be adjusted based on clinical judgment. A minimum perampanel dose of 2 milligram (mg) per day was required to continue in the study. The maximum daily dose of perampanel permitted was 12 mg per day.

    Serious adverse events
    Perampanel
    Total subjects affected by serious adverse events
         subjects affected / exposed
    0 / 7 (0.00%)
         number of deaths (all causes)
    0
         number of deaths resulting from adverse events
    0
    Frequency threshold for reporting non-serious adverse events: 0%
    Non-serious adverse events
    Perampanel
    Total subjects affected by non serious adverse events
         subjects affected / exposed
    6 / 7 (85.71%)
    Injury, poisoning and procedural complications
    Fall
         subjects affected / exposed
    1 / 7 (14.29%)
         occurrences all number
    1
    Head injury
         subjects affected / exposed
    1 / 7 (14.29%)
         occurrences all number
    1
    Humerus fracture
         subjects affected / exposed
    1 / 7 (14.29%)
         occurrences all number
    1
    Infections and infestations
    Nasopharyngitis
         subjects affected / exposed
    3 / 7 (42.86%)
         occurrences all number
    4
    Influenza
         subjects affected / exposed
    1 / 7 (14.29%)
         occurrences all number
    1
    Metabolism and nutrition disorders
    Diabetes mellitus
         subjects affected / exposed
    1 / 7 (14.29%)
         occurrences all number
    1
    Hypercholesterolaemia
         subjects affected / exposed
    1 / 7 (14.29%)
         occurrences all number
    1
    Hyperuricaemia
         subjects affected / exposed
    1 / 7 (14.29%)
         occurrences all number
    1

    More information

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    Substantial protocol amendments (globally)

    Were there any global substantial amendments to the protocol? No

    Interruptions (globally)

    Were there any global interruptions to the trial? No

    Limitations and caveats

    Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data.
    None reported
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    The status and protocol content of GB trials is no longer updated since 1 January 2021. For the UK, as of 31 January 2021, EU Law applies only to the territory of Northern Ireland (NI) to the extent foreseen in the Protocol on Ireland/NI. Legal notice
    As of 31 January 2023, all EU/EEA initial clinical trial applications must be submitted through CTIS . Updated EudraCT trials information and information on PIP/Art 46 trials conducted exclusively in third countries continues to be submitted through EudraCT and published on this website.

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