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    Clinical Trial Results:
    An exploratory, randomized, double blind, placebo controlled, parallel groups Phase II clinical trial to evaluate the efficacy and safety of E-52862 (400 mg) by oral route, in patients with post-herpetic neuralgia (PHN).

    Summary
    EudraCT number
    2012-000399-41
    Trial protocol
    ES  
    Global end of trial date
    27 Nov 2013

    Results information
    Results version number
    v1(current)
    This version publication date
    29 Jul 2016
    First version publication date
    29 Jul 2016
    Other versions

    Trial information

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    Trial identification
    Sponsor protocol code
    ESTEVE-SIGM-203
    Additional study identifiers
    ISRCTN number
    -
    US NCT number
    -
    WHO universal trial number (UTN)
    -
    Sponsors
    Sponsor organisation name
    Laboratorios Dr. Esteve. S.A. (ESTEVE)
    Sponsor organisation address
    Avda. Mare de Déu de Montserrat, 221, Barcelona, Spain, 08041
    Public contact
    Jesús Cebrecos. Study Medical Monitor, Laboratorios Dr. Esteve. S.A., +34 934466000, jcebrecos@esteve.es
    Scientific contact
    Jesús Cebrecos. Study Medical Monitor, Laboratorios Dr. Esteve. S.A. , +34 934466000, jcebrecos@esteve.es
    Paediatric regulatory details
    Is trial part of an agreed paediatric investigation plan (PIP)
    No
    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
    20 Oct 2014
    Is this the analysis of the primary completion data?
    Yes
    Primary completion date
    27 Nov 2013
    Global end of trial reached?
    Yes
    Global end of trial date
    27 Nov 2013
    Was the trial ended prematurely?
    Yes
    General information about the trial
    Main objective of the trial
    The primary objective of this study is to assess the analgesic efficacy of E-52862 in subjects with moderate to severe postherpetic neuralgia
    Protection of trial subjects
    The study has been conducted in compliance with the protocol, regulatory requirements, good clinical practice (GCP) and the ethical principles of the latest revision of the Declaration of Helsinki as adopted by the World Medical Association.
    Background therapy
    Subjects were treated with stable doses of gabapentin or pregabalin for at least one month prior to the screening visit, and continued taking the same doses for the duration of the study at the investigator’s criteria.
    Evidence for comparator
    -
    Actual start date of recruitment
    29 Nov 2012
    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
    Spain: 13
    Worldwide total number of subjects
    13
    EEA total number of subjects
    13
    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)
    0
    Adults (18-64 years)
    2
    From 65 to 84 years
    11
    85 years and over
    0

    Subject disposition

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    Recruitment
    Recruitment details
    The study was conducted in Spain, during 29-Nov-2012 ( FSFV) and 30-Oct-2013 (LSLV)

    Pre-assignment
    Screening details
    Male and female adults with a diagnosis of moderate to severe pain of PHN for more than 3 months since the resolution of rash but no more than 5 years, treated with stable doses of gabapentin or pregabalin for at least 1 month prior to the screening, who were able to continue taking the same doses for the duration of the study at the IPs criteria

    Period 1
    Period 1 title
    Overall Trial (overall period)
    Is this the baseline period?
    Yes
    Allocation method
    Randomised - controlled
    Blinding used
    Double blind
    Roles blinded
    Subject, Investigator, Monitor, Data analyst

    Arms
    Are arms mutually exclusive
    Yes

    Arm title
    E-52862
    Arm description
    -
    Arm type
    Experimental

    Investigational medicinal product name
    E-52862
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Capsule
    Routes of administration
    Oral use
    Dosage and administration details
    400 mg once a day

    Arm title
    Control
    Arm description
    -
    Arm type
    Placebo

    Investigational medicinal product name
    Placebo
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Capsule
    Routes of administration
    Oral use
    Dosage and administration details
    1 capsule of placebo once a day

    Number of subjects in period 1
    E-52862 Control
    Started
    4
    9
    Completed
    4
    9

    Baseline characteristics

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    Baseline characteristics reporting groups
    Reporting group title
    E-52862
    Reporting group description
    -

    Reporting group title
    Control
    Reporting group description
    -

    Reporting group values
    E-52862 Control Total
    Number of subjects
    4 9 13
    Age categorical
    Units: Subjects
        Adults (18-84 years)
    4 9 13
    Age continuous
    Units: years
        arithmetic mean (full range (min-max))
    72 (66 to 79) 75 (34 to 80) -
    Gender categorical
    Units: Subjects
        Female
    2 4 6
        Male
    2 5 7
    Duration of post-herpetic neuralgia
    Units: months
        arithmetic mean (full range (min-max))
    20.25 (14.64 to 27.21) 13.19 (2.61 to 57.96) -
    Subject analysis sets

    Subject analysis set title
    Safety analysis set
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    All randomised subjects who receive at least 1 dose of the study drug. Safety analysis will be performed on the safety set.

    Subject analysis set title
    Full analysis set
    Subject analysis set type
    Full analysis
    Subject analysis set description
    The Full Analysis Set (FAS) was defined as all randomized patients who took study medication and provided at least one valid baseline and one on-treatment observation for efficacy variables.

    Subject analysis sets values
    Safety analysis set Full analysis set
    Number of subjects
    13
    13
    Age categorical
    Units: Subjects
        Adults (18-84 years)
    13
    13
    Age continuous
    Units: years
        arithmetic mean (full range (min-max))
    73 (34 to 80)
    73 (34 to 80)
    Gender categorical
    Units: Subjects
        Female
    6
    6
        Male
    7
    7
    Duration of post-herpetic neuralgia
    Units: months
        arithmetic mean (full range (min-max))
    14.64 (2.61 to 57.96)
    14.64 (2.61 to 57.96)

    End points

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    End points reporting groups
    Reporting group title
    E-52862
    Reporting group description
    -

    Reporting group title
    Control
    Reporting group description
    -

    Subject analysis set title
    Safety analysis set
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    All randomised subjects who receive at least 1 dose of the study drug. Safety analysis will be performed on the safety set.

    Subject analysis set title
    Full analysis set
    Subject analysis set type
    Full analysis
    Subject analysis set description
    The Full Analysis Set (FAS) was defined as all randomized patients who took study medication and provided at least one valid baseline and one on-treatment observation for efficacy variables.

    Primary: NPRS – Average pain – change from baseline to day 28

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    End point title
    NPRS – Average pain – change from baseline to day 28 [1]
    End point description
    End point type
    Primary
    End point timeframe
    Time specific change from baseline to day 28 in mean pain intensity in the previous 7 days interval measured by a Numerical Pain Rating Scale (NPRS), included in a patient diary (average 24 hour pain)
    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: Considering the final number of patients randomized, the content of the Statistical Analysis Plan (SAP) was updated taking into account this important issue and no statistical comparisons were performed. Strictly Confidential Information and Data. Property of ESTEVE.
    End point values
    E-52862 Control
    Number of subjects analysed
    4
    9
    Units: numeric (pain rating scale)
        arithmetic mean (standard deviation)
    -1.53 ( 1.73 )
    -0.85 ( 1.79 )
    No statistical analyses for this end point

    Secondary: NPRS – Worst pain – change from baseline to day 28

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    End point title
    NPRS – Worst pain – change from baseline to day 28
    End point description
    End point type
    Secondary
    End point timeframe
    Time specific change from baseline to day 28 in mean pain intensity in the previous 7 days interval measured by a Numerical Pain Rating Scale (NPRS), included in a patient diary (worst 24 hour pain)
    End point values
    E-52862 Control
    Number of subjects analysed
    4
    9
    Units: Numerical (Pain rating scale)
        arithmetic mean (standard deviation)
    -1.04 ( 1.95 )
    -0.85 ( 1.88 )
    No statistical analyses for this end point

    Secondary: NPRS – Average pain – change from baseline to day 7, 14 and 21

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    End point title
    NPRS – Average pain – change from baseline to day 7, 14 and 21
    End point description
    End point type
    Secondary
    End point timeframe
    Time specific change from baseline to day 7, 14, and 21, in mean pain intensity in the previous 7 days interval measured by a Numerical Pain Rating Scale (NPRS), included in a patient diary (average 24 hour pain)
    End point values
    E-52862 Control
    Number of subjects analysed
    4
    9
    Units: Numerical (Pain rating scale)
    arithmetic mean (standard deviation)
        Day 7 visit
    -1.55 ( 1.56 )
    -0.48 ( 0.98 )
        Day 14 visit
    -1.01 ( 0.97 )
    -0.48 ( 1.26 )
        Day 21 visit
    -0.85 ( 0.84 )
    -0.85 ( 1.81 )
    No statistical analyses for this end point

    Secondary: NPRS – Worst pain – change from baseline to day 7, 14 and 21

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    End point title
    NPRS – Worst pain – change from baseline to day 7, 14 and 21
    End point description
    End point type
    Secondary
    End point timeframe
    Time specific change from baseline to day 7, 14, and 21, in mean pain intensity in the previous 7 days interval measured by a Numerical Pain Rating Scale (NPRS), included in a patient diary (worst 24 hour pain)
    End point values
    E-52862 Control
    Number of subjects analysed
    4
    9
    Units: Numerical (Pain rating scale)
    arithmetic mean (standard deviation)
        Day 7 visit
    -0.83 ( 0.29 )
    -0.39 ( 1.15 )
        Day 14 visit
    -0.68 ( 1.06 )
    -0.66 ( 1.23 )
        Day 21 visit
    -0.37 ( 1.12 )
    -0.92 ( 1.75 )
    No statistical analyses for this end point

    Secondary: Consumption of pain rescue medication

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    End point title
    Consumption of pain rescue medication
    End point description
    Number of patients that required pain rescue medication during the 28 days treatment period.
    End point type
    Secondary
    End point timeframe
    28 days treatment period
    End point values
    E-52862 Control
    Number of subjects analysed
    4
    9
    Units: Patients
        Rescue Medication
    2
    5
        No Rescue Medication
    2
    4
    No statistical analyses for this end point

    Adverse events

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    Adverse events information
    Timeframe for reporting adverse events
    From the first IMP intake up to two weeks after the last IMP administration
    Adverse event reporting additional description
    Treatment Emergent Adverse Event are displayed. The AEs that occurred after the first IMP intake are going to be considered as treatment emergent AEs (TEAEs) either serious or not.
    Assessment type
    Systematic
    Dictionary used for adverse event reporting
    Dictionary name
    MedDRA
    Dictionary version
    16.1
    Reporting groups
    Reporting group title
    E-52862
    Reporting group description
    -

    Reporting group title
    Placebo
    Reporting group description
    -

    Serious adverse events
    E-52862 Placebo
    Total subjects affected by serious adverse events
         subjects affected / exposed
    0 / 4 (0.00%)
    0 / 9 (0.00%)
         number of deaths (all causes)
    0
    0
         number of deaths resulting from adverse events
    0
    0
    Frequency threshold for reporting non-serious adverse events: 0%
    Non-serious adverse events
    E-52862 Placebo
    Total subjects affected by non serious adverse events
         subjects affected / exposed
    4 / 4 (100.00%)
    7 / 9 (77.78%)
    Investigations
    ACTIVATED PARTIAL THROMBOPLASTIN TIME PROLONGED
         subjects affected / exposed
    0 / 4 (0.00%)
    1 / 9 (11.11%)
         occurrences all number
    0
    1
    INTERNATIONAL NORMALISED RATIO INCREASED
         subjects affected / exposed
    0 / 4 (0.00%)
    1 / 9 (11.11%)
         occurrences all number
    0
    1
    Vascular disorders
    HYPERTENSION
         subjects affected / exposed
    1 / 4 (25.00%)
    1 / 9 (11.11%)
         occurrences all number
    1
    1
    Cardiac disorders
    ATRIAL FIBRILLATION
         subjects affected / exposed
    0 / 4 (0.00%)
    1 / 9 (11.11%)
         occurrences all number
    0
    1
    Nervous system disorders
    DIZZINESS
         subjects affected / exposed
    2 / 4 (50.00%)
    2 / 9 (22.22%)
         occurrences all number
    4
    2
    HEADACHE
         subjects affected / exposed
    0 / 4 (0.00%)
    2 / 9 (22.22%)
         occurrences all number
    0
    2
    Blood and lymphatic system disorders
    NEUTROPENIA
         subjects affected / exposed
    0 / 4 (0.00%)
    1 / 9 (11.11%)
         occurrences all number
    0
    1
    General disorders and administration site conditions
    FATIGUE
         subjects affected / exposed
    1 / 4 (25.00%)
    1 / 9 (11.11%)
         occurrences all number
    1
    2
    NON-CARDIAC CHEST PAIN
         subjects affected / exposed
    0 / 4 (0.00%)
    1 / 9 (11.11%)
         occurrences all number
    0
    2
    Gastrointestinal disorders
    CONSTIPATION
         subjects affected / exposed
    1 / 4 (25.00%)
    0 / 9 (0.00%)
         occurrences all number
    1
    0
    DYSPEPSIA
         subjects affected / exposed
    1 / 4 (25.00%)
    0 / 9 (0.00%)
         occurrences all number
    2
    0
    Musculoskeletal and connective tissue disorders
    ARTHRALGIA
         subjects affected / exposed
    0 / 4 (0.00%)
    1 / 9 (11.11%)
         occurrences all number
    0
    2
    PAIN IN EXTREMITY
         subjects affected / exposed
    0 / 4 (0.00%)
    1 / 9 (11.11%)
         occurrences all number
    0
    1
    Infections and infestations
    NASOPHARYNGITIS
         subjects affected / exposed
    1 / 4 (25.00%)
    0 / 9 (0.00%)
         occurrences all number
    1
    0

    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.
    Provided study patients could not be recruited at a reasonable rate, the sponsor prematurely terminated the study after a period of 12 months recruitment, with 13 patients randomized. Strictly Confidential Information and Data. Property of ESTEVE
    For support, Contact us.
    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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