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    Clinical Trial Results:
    An exploratory study to evaluate the efficacy and safety of bilastine in reducing pruritus in patients with chronic spontaneous urticaria and other skin diseases.

    Summary
    EudraCT number
    2016-001505-17
    Trial protocol
    ES   HU  
    Global end of trial date
    30 Mar 2017

    Results information
    Results version number
    v1(current)
    This version publication date
    26 Jun 2022
    First version publication date
    26 Jun 2022
    Other versions

    Trial information

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    Trial identification
    Sponsor protocol code
    BILA-3716/PRU
    Additional study identifiers
    ISRCTN number
    -
    US NCT number
    -
    WHO universal trial number (UTN)
    -
    Sponsors
    Sponsor organisation name
    FAES FARMA S.A.
    Sponsor organisation address
    Avda Autonomía, 10, Leioa, Spain, 48940
    Public contact
    Cristina Campo, FAES FARMA S.A., +34 94 481 83 00, ccampo@faes.es
    Scientific contact
    Cristina Campo, FAES FARMA S.A., +34 94 481 83 00, ccampo@faes.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
    12 Dec 2017
    Is this the analysis of the primary completion data?
    Yes
    Primary completion date
    30 Mar 2017
    Global end of trial reached?
    Yes
    Global end of trial date
    30 Mar 2017
    Was the trial ended prematurely?
    No
    General information about the trial
    Main objective of the trial
    The study objective will be to evaluate the efficacy of bilastine in the relief of pruritus in patients with chronic spontaneous urticaria or pruritus associated with other skin diseases.
    Protection of trial subjects
    Close medical monitoring and immediate access to medical care in case of any adverse event during and after the trial, until 4 weeks after the last medication intake.
    Background therapy
    -
    Evidence for comparator
    -
    Actual start date of recruitment
    22 Aug 2016
    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
    Poland: 88
    Country: Number of subjects enrolled
    Spain: 2
    Country: Number of subjects enrolled
    Hungary: 25
    Worldwide total number of subjects
    115
    EEA total number of subjects
    115
    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)
    108
    From 65 to 84 years
    7
    85 years and over
    0

    Subject disposition

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    Recruitment
    Recruitment details
    Recruitment was performed from August 2016 to March 2017 in 10 Clinical sites in Spain (2), Poland (3) and Hungary (5): 123 patients were screened and 115 patients were enrolled with diagnosis of chronic spontaneous urticaria (34), eczema/dermatitis (30), prurigo (25) and cutaneous pruritus (26).

    Pre-assignment
    Screening details
    Male and female patients between 18 and 74 years diagnosed of CSU, eczema/dermatitis, prurito or cutaneous pruritus. CSU diagnosed at least 6 weeks prior to consent, with at least 4 points (UAS Itch score sum, the last 3 days of run-in period) and 16 points (UAS7, the last 7 days before enrollment)

    Period 1
    Period 1 title
    Overall Trial (overall period)
    Is this the baseline period?
    Yes
    Allocation method
    Not applicable
    Blinding used
    Not blinded

    Arms
    Are arms mutually exclusive
    Yes

    Arm title
    Chronic spontaneous urticaria
    Arm description
    Patients with pruritus due to chronic spontaneous urticaria
    Arm type
    Experimental

    Investigational medicinal product name
    Bilastine
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Tablet
    Routes of administration
    Oral use
    Dosage and administration details
    20 mg once daily

    Arm title
    Eczema/Dermatitis
    Arm description
    Patients with pruritus due to dermatitis/eczema
    Arm type
    Experimental

    Investigational medicinal product name
    Bilastine
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Tablet
    Routes of administration
    Oral use
    Dosage and administration details
    20 mg once daily

    Arm title
    Prurigo
    Arm description
    Patients with pruritus due to prurigo
    Arm type
    Experimental

    Investigational medicinal product name
    Bilastine
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Tablet
    Routes of administration
    Oral use
    Dosage and administration details
    20 mg once daily

    Arm title
    Cutaneous pruritus
    Arm description
    Patients with pruritus due to cutaneous pruritus
    Arm type
    Experimental

    Investigational medicinal product name
    Bilastine
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Tablet
    Routes of administration
    Oral use
    Dosage and administration details
    20 mg once daily

    Number of subjects in period 1
    Chronic spontaneous urticaria Eczema/Dermatitis Prurigo Cutaneous pruritus
    Started
    34
    30
    25
    26
    Completed
    31
    29
    24
    26
    Not completed
    3
    1
    1
    0
         Consent withdrawn by subject
    1
    1
    -
    -
         Protocol deviation
    2
    -
    1
    -

    Baseline characteristics

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    Baseline characteristics reporting groups
    Reporting group title
    Overall Trial
    Reporting group description
    Pruritus patients

    Reporting group values
    Overall Trial Total
    Number of subjects
    115 115
    Age categorical
    Adults and elderly people
    Units: Subjects
        Adults (18-64 years)
    108 108
        From 65-84 years
    7 7
    Gender categorical
    Units: Subjects
        Female
    86 86
        Male
    29 29
    Subject analysis sets

    Subject analysis set title
    Safety Analysis set
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    of the 115 included patients, 34 (29.57%) patients had a diagnosis of CSU, and 81 (70.43%) had a diagnosis of eczema/dermatitis, prurigo or cutaneous pruritus group. In the eczema/dermatitis group, which consisted of 30 patients, the following characteristics were described: • 19 patients were diagnosed of atopic dermatitis • 4 patients were diagnosed of chronic eczema • 7 patients were diagnosed of contact dermatitis In the prurigo group, which consisted of 25 patients, the following characteristics were described: • 24 patients were diagnosed of chronic prurigo • 1 patient was diagnosed of subacute prurigo. Finally, in the cutaneous pruritus group, which consisted of 26 patients, the following characteristics were described: • 24 patients were diagnosed of systemic cutaneous pruritus • 2 patients were diagnosed of local cutaneous pruritus

    Subject analysis set title
    Full Analysis set
    Subject analysis set type
    Full analysis
    Subject analysis set description
    the full analysis set (FAS) population consisted of 111 patients (96.5% of the included sample). All efficacy variables were based on the FAS population. The FAS was defined as all patients who had taken at least one dose of study treatment and who had available a postbaseline evaluation of the primary efficacy endpoint at baseline (D0) and at week 8 (Visit 5).

    Subject analysis sets values
    Safety Analysis set Full Analysis set
    Number of subjects
    115
    111
    Age categorical
    Adults and elderly people
    Units: Subjects
        Adults (18-64 years)
    108
        From 65-84 years
    7
    Age continuous
    Units: years
        arithmetic mean (full range (min-max))
    Gender categorical
    Units: Subjects
        Female
    86
        Male
    29

    End points

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    End points reporting groups
    Reporting group title
    Chronic spontaneous urticaria
    Reporting group description
    Patients with pruritus due to chronic spontaneous urticaria

    Reporting group title
    Eczema/Dermatitis
    Reporting group description
    Patients with pruritus due to dermatitis/eczema

    Reporting group title
    Prurigo
    Reporting group description
    Patients with pruritus due to prurigo

    Reporting group title
    Cutaneous pruritus
    Reporting group description
    Patients with pruritus due to cutaneous pruritus

    Subject analysis set title
    Safety Analysis set
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    of the 115 included patients, 34 (29.57%) patients had a diagnosis of CSU, and 81 (70.43%) had a diagnosis of eczema/dermatitis, prurigo or cutaneous pruritus group. In the eczema/dermatitis group, which consisted of 30 patients, the following characteristics were described: • 19 patients were diagnosed of atopic dermatitis • 4 patients were diagnosed of chronic eczema • 7 patients were diagnosed of contact dermatitis In the prurigo group, which consisted of 25 patients, the following characteristics were described: • 24 patients were diagnosed of chronic prurigo • 1 patient was diagnosed of subacute prurigo. Finally, in the cutaneous pruritus group, which consisted of 26 patients, the following characteristics were described: • 24 patients were diagnosed of systemic cutaneous pruritus • 2 patients were diagnosed of local cutaneous pruritus

    Subject analysis set title
    Full Analysis set
    Subject analysis set type
    Full analysis
    Subject analysis set description
    the full analysis set (FAS) population consisted of 111 patients (96.5% of the included sample). All efficacy variables were based on the FAS population. The FAS was defined as all patients who had taken at least one dose of study treatment and who had available a postbaseline evaluation of the primary efficacy endpoint at baseline (D0) and at week 8 (Visit 5).

    Primary: Efficacy of bilastine in the relief of pruritus

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    End point title
    Efficacy of bilastine in the relief of pruritus
    End point description
    Efficacy of bilastine in the relief of pruritus in patients with CSU or pruritus associated with other skin diseases. The primary endpoint was the mean change in weekly pruritus severity score (mean “week 8” score – mean baseline score) and was analysed with a paired Student’s t-test with 2-sided alpha=0.05, including its corresponding 95% confidence interval (CI). A non-parametric approach as the Wilcoxon test for paired data was used in case the assumptions for a parametric approach were not met
    End point type
    Primary
    End point timeframe
    from baseline to week 8
    End point values
    Chronic spontaneous urticaria Eczema/Dermatitis Prurigo Cutaneous pruritus
    Number of subjects analysed
    31
    29
    25
    26
    Units: number
        arithmetic mean (standard deviation)
    -2.11 ( 0.44 )
    -1.36 ( 0.79 )
    -1.30 ( 0.92 )
    -1.66 ( 0.63 )
    Statistical analysis title
    SASĀ® Version 9.2 or later.
    Statistical analysis description
    All descriptive variables were tabulated. Quantitative variables were described showing their number of available and missing observations, mean, median, standard deviation (SD), the range (minimum and maximum) and the first and third quartiles. Frequency and percentage described qualitative variables. Missing values were tabulated with their frequency but were not included in the calculation of percentages
    Comparison groups
    Chronic spontaneous urticaria v Eczema/Dermatitis v Prurigo v Cutaneous pruritus
    Number of subjects included in analysis
    111
    Analysis specification
    Pre-specified
    Analysis type
    other
    P-value
    < 0.05
    Method
    Wilcoxon (Mann-Whitney)
    Confidence interval

    Secondary: Efficacy in terms of other symptoms and signs of the disease groups

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    End point title
    Efficacy in terms of other symptoms and signs of the disease groups
    End point description
    Symptom relief was defined as the negative difference between the baseline symptom score and the corresponding symptom score. VAS for pruritus
    End point type
    Secondary
    End point timeframe
    From Baseline to week 8
    End point values
    Chronic spontaneous urticaria Eczema/Dermatitis Prurigo Cutaneous pruritus
    Number of subjects analysed
    31
    29
    25
    26
    Units: number
        arithmetic mean (standard deviation)
    -60.61 ( 16.59 )
    -30.64 ( 18.28 )
    -43.72 ( 27.41 )
    -43.45 ( 16.70 )
    No statistical analyses for this end point

    Secondary: Safety and tolerability

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    End point title
    Safety and tolerability
    End point description
    Safety and tolerability of bilastine in terms of adverse events, including ECG and laboratory tests. The safety variables included the following: • Incidence of adverse events (AEs), serious adverse events (SAEs), and related adverse events (rAEs). • Change of various clinical laboratory test results, ECG and vital signs
    End point type
    Secondary
    End point timeframe
    From informed consent signature to safety follow up visit 4 weeks after final visit (week 8).
    End point values
    Chronic spontaneous urticaria Eczema/Dermatitis Prurigo Cutaneous pruritus Safety Analysis set
    Number of subjects analysed
    34
    30
    25
    26
    115
    Units: number
    16
    39
    22
    15
    92
    No statistical analyses for this end point

    Adverse events

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    Adverse events information
    Timeframe for reporting adverse events
    From informed consent signature to safety follow up visit 4 weeks after final visit (week 8).
    Assessment type
    Systematic
    Dictionary used for adverse event reporting
    Dictionary name
    MedDRA
    Dictionary version
    19.0
    Reporting groups
    Reporting group title
    Chronic Spontaneous Urticaria
    Reporting group description
    -

    Reporting group title
    Eczema/dermatitis
    Reporting group description
    -

    Reporting group title
    Prurigo
    Reporting group description
    -

    Reporting group title
    Cutaneous pruritus
    Reporting group description
    -

    Serious adverse events
    Chronic Spontaneous Urticaria Eczema/dermatitis Prurigo Cutaneous pruritus
    Total subjects affected by serious adverse events
         subjects affected / exposed
    0 / 34 (0.00%)
    0 / 39 (0.00%)
    0 / 25 (0.00%)
    0 / 26 (0.00%)
         number of deaths (all causes)
    0
    0
    0
    0
         number of deaths resulting from adverse events
    0
    0
    0
    Frequency threshold for reporting non-serious adverse events: 5%
    Non-serious adverse events
    Chronic Spontaneous Urticaria Eczema/dermatitis Prurigo Cutaneous pruritus
    Total subjects affected by non serious adverse events
         subjects affected / exposed
    10 / 34 (29.41%)
    10 / 39 (25.64%)
    12 / 25 (48.00%)
    7 / 26 (26.92%)
    Investigations
    Investigations
         subjects affected / exposed
    0 / 34 (0.00%)
    1 / 39 (2.56%)
    1 / 25 (4.00%)
    0 / 26 (0.00%)
         occurrences all number
    0
    1
    1
    0
    Nervous system disorders
    Headache
         subjects affected / exposed [1]
    1 / 31 (3.23%)
    5 / 29 (17.24%)
    3 / 25 (12.00%)
    1 / 26 (3.85%)
         occurrences all number
    2
    13
    4
    3
    General disorders and administration site conditions
    General disorder and administration site condition
         subjects affected / exposed
    1 / 34 (2.94%)
    0 / 39 (0.00%)
    1 / 25 (4.00%)
    0 / 26 (0.00%)
         occurrences all number
    1
    0
    1
    0
    Gastrointestinal disorders
    Abdominal pain upper
         subjects affected / exposed
    1 / 34 (2.94%)
    0 / 39 (0.00%)
    0 / 25 (0.00%)
    1 / 26 (3.85%)
         occurrences all number
    1
    0
    0
    1
    Toothache
         subjects affected / exposed
    0 / 34 (0.00%)
    2 / 39 (5.13%)
    0 / 25 (0.00%)
    0 / 26 (0.00%)
         occurrences all number
    0
    2
    0
    0
    Respiratory, thoracic and mediastinal disorders
    Pharyngitis
         subjects affected / exposed
    3 / 34 (8.82%)
    1 / 39 (2.56%)
    2 / 25 (8.00%)
    1 / 26 (3.85%)
         occurrences all number
    4
    11
    2
    1
    Skin and subcutaneous tissue disorders
    Prurigo
         subjects affected / exposed
    0 / 34 (0.00%)
    2 / 39 (5.13%)
    1 / 25 (4.00%)
    0 / 26 (0.00%)
         occurrences all number
    0
    2
    1
    0
    Pruritus
         subjects affected / exposed
    0 / 34 (0.00%)
    2 / 39 (5.13%)
    2 / 25 (8.00%)
    0 / 26 (0.00%)
         occurrences all number
    0
    2
    2
    0
    Urticaria
         subjects affected / exposed
    2 / 34 (5.88%)
    0 / 39 (0.00%)
    0 / 25 (0.00%)
    0 / 26 (0.00%)
         occurrences all number
    2
    0
    0
    0
    Musculoskeletal and connective tissue disorders
    Musculoskeletal and connective tissue disorders
         subjects affected / exposed
    1 / 34 (2.94%)
    0 / 39 (0.00%)
    3 / 25 (12.00%)
    3 / 26 (11.54%)
         occurrences all number
    1
    0
    1
    2
    Infections and infestations
    Nasopharyngitis
         subjects affected / exposed
    1 / 34 (2.94%)
    0 / 39 (0.00%)
    4 / 25 (16.00%)
    3 / 26 (11.54%)
         occurrences all number
    1
    0
    4
    3
    Sinusitis
         subjects affected / exposed
    0 / 34 (0.00%)
    0 / 39 (0.00%)
    0 / 25 (0.00%)
    2 / 26 (7.69%)
         occurrences all number
    0
    0
    0
    2
    Notes
    [1] - The number of subjects exposed to this adverse event is less than the total number of subjects exposed for the reporting group. These numbers are expected to be equal.
    Justification: The number of exposed patients for our undertanding refers to the total number of patient per reporting group.

    More information

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    Substantial protocol amendments (globally)

    Were there any global substantial amendments to the protocol? Yes
    Date
    Amendment
    30 Mar 2017
    After the closure of the database and the delivery of the first results, it was decided the convenience of perform an ad-hoc analysis for the efficacy variables in which change from baseline were reported in order to split the results of those patients who achieve a 30% improvement at Week 2 (responder patients) from those who updosed 2 x 20 mg tablets of bilastine from Week 2 to Week 8 (non-responder patients).

    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

    Online references

    http://www.ncbi.nlm.nih.gov/pubmed/30835579
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