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    Clinical Trial Results:
    Extension Study of ENB-0040 (Human Recombinant Tissue-Nonspecific Alkaline Phosphatase Fusion Protein) in Severely Affected Infants and Young Children with Hypophosphatasia (HPP)

    Summary
    EudraCT number
    2009-009369-32
    Trial protocol
    GB  
    Global end of trial date
    07 Feb 2017

    Results information
    Results version number
    v1(current)
    This version publication date
    17 Sep 2017
    First version publication date
    17 Sep 2017
    Other versions

    Trial information

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    Trial identification
    Sponsor protocol code
    ENB-003-08
    Additional study identifiers
    ISRCTN number
    -
    US NCT number
    NCT01205152
    WHO universal trial number (UTN)
    -
    Sponsors
    Sponsor organisation name
    Alexion Pharma GmbH
    Sponsor organisation address
    Giesshübelstrasse 30, Zurich, Switzerland, 8045
    Public contact
    European Clinical Trial Information, ALEXION EUROPE SAS, +33 147100606, clinicaltrials.eu@alexion.com
    Scientific contact
    European Clinical Trial Information, ALEXION EUROPE SAS, +33 147100606, clinicaltrials.eu@alexion.com
    Paediatric regulatory details
    Is trial part of an agreed paediatric investigation plan (PIP)
    Yes
    EMA paediatric investigation plan number(s)
    EMEA-000987-PIP01-10
    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?
    Yes
    Results analysis stage
    Analysis stage
    Final
    Date of interim/final analysis
    07 Feb 2017
    Is this the analysis of the primary completion data?
    Yes
    Primary completion date
    14 Aug 2016
    Global end of trial reached?
    Yes
    Global end of trial date
    07 Feb 2017
    Was the trial ended prematurely?
    No
    General information about the trial
    Main objective of the trial
    - To determine the long-term tolerability of subcutaneous (SC) Asfotase alfa - To assess the long-term efficacy of Asfotase alfa in treating rickets in infants and young children with HPP
    Protection of trial subjects
    No specific measure
    Background therapy
    -
    Evidence for comparator
    No comparator was used
    Actual start date of recruitment
    01 Apr 2009
    Long term follow-up planned
    No
    Independent data monitoring committee (IDMC) involvement?
    Yes
    Population of trial subjects
    Number of subjects enrolled per country
    Country: Number of subjects enrolled
    United Kingdom: 3
    Country: Number of subjects enrolled
    United States: 6
    Country: Number of subjects enrolled
    United Arab Emirates: 1
    Worldwide total number of subjects
    10
    EEA total number of subjects
    3
    Number of subjects enrolled per age group
    In utero
    0
    Preterm newborn - gestational age < 37 wk
    0
    Newborns (0-27 days)
    1
    Infants and toddlers (28 days-23 months)
    6
    Children (2-11 years)
    3
    Adolescents (12-17 years)
    0
    Adults (18-64 years)
    0
    From 65 to 84 years
    0
    85 years and over
    0

    Subject disposition

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    Recruitment
    Recruitment details
    Criteria for inclusion in Study ENB-002-08 were male and female patients less than or equal to 36 months of age, with severe infantile-onset HPP (symptom onset before 6 months) who were medically stable (ventilator support was allowed). To enter extension Study ENB-003-08, parent/guardian had to consent and patient had to complete Study ENB-002-08.

    Pre-assignment
    Screening details
    All screened patients met eligibility criteria and were enrolled in the study

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

    Arms
    Arm title
    Asfotase Alfa
    Arm description
    All enrolled patients continued on the same dose they were receiving at the end of study ENB-002-08 with adjustments permitted for weight, lack of efficacy, or safety-related concerns.
    Arm type
    Experimental

    Investigational medicinal product name
    Asfotase Alfa
    Investigational medicinal product code
    Other name
    ENB-0040
    Pharmaceutical forms
    Solution for solution for injection
    Routes of administration
    Subcutaneous use, Intravenous use
    Dosage and administration details
    thrice weekly SC (subcutaneous) injections of Asfotase Alfa

    Number of subjects in period 1
    Asfotase Alfa
    Started
    10
    Completed
    9
    Not completed
    1
         Adverse event, serious fatal
    1

    Baseline characteristics

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    Baseline characteristics reporting groups
    Reporting group title
    Overall Trial
    Reporting group description
    Of the 11 patients who were enrolled in Study ENB-002-08, 10 patients completed Study ENB-002-08 and were enrolled in extension study ENB-003-08.

    Reporting group values
    Overall Trial Total
    Number of subjects
    10 10
    Age categorical
    Units: Subjects
        In utero
    0 0
        Preterm newborn infants (gestational age < 37 wks)
    0 0
        Newborns (0-27 days)
    1 1
        Infants and toddlers (28 days-23 months)
    6 6
        Children (2-11 years)
    3 3
        Adolescents (12-17 years)
    0 0
        Adults (18-64 years)
    0 0
        From 65-84 years
    0 0
        85 years and over
    0 0
    Age continuous
    Units: weeks
        arithmetic mean (standard deviation)
    56.44 ( 61.888 ) -
    Gender categorical
    Units: Subjects
        Female
    6 6
        Male
    4 4
    Ethnicity
    Units: Subjects
        Hispanic or Latino
    1 1
        Not Hispanic or Latino
    9 9
    Race
    Units: Subjects
        White
    10 10

    End points

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    End points reporting groups
    Reporting group title
    Asfotase Alfa
    Reporting group description
    All enrolled patients continued on the same dose they were receiving at the end of study ENB-002-08 with adjustments permitted for weight, lack of efficacy, or safety-related concerns.

    Primary: Long-term Tolerability of Subcutaneous (SC) Asfotase Alfa

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    End point title
    Long-term Tolerability of Subcutaneous (SC) Asfotase Alfa [1]
    End point description
    Outcome measure is the number of patients with 1 or more treatment-emergent adverse event. The time period is from Baseline in the ENB-003-08 study to the end of the ENB-003-08 study.
    End point type
    Primary
    End point timeframe
    84 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: The system EudraCT does not allow entering for statistical analysis for single arm studies. Thus, the analysis was removed in order to resolve the IT 'error'
    End point values
    Asfotase Alfa
    Number of subjects analysed
    10
    Units: Patients
    10
    No statistical analyses for this end point

    Primary: Long-term Efficacy of Asfotase Alfa in Treating Rickets in Infants and Young Children With HPP

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    End point title
    Long-term Efficacy of Asfotase Alfa in Treating Rickets in Infants and Young Children With HPP [2]
    End point description
    Outcome measure is the evaluation of skeletal radiographs using a qualitative Radiographic Global Impression of Change (RGI-C) Scale, compared with Baseline in Study ENB-002-08 (NCT00744042). The time period is pre-dose (Baseline from ENB-002-08 study) to the last assessment for each patient in the ENB-003-08 study, which represents up to 90 months of exposure for the combined studies.
    End point type
    Primary
    End point timeframe
    90 months
    Notes
    [2] - 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: The system EudraCT does not allow entering for statistical analysis for single arm studies. Thus, the analysis was removed in order to resolve the IT 'error'
    End point values
    Asfotase Alfa
    Number of subjects analysed
    10
    Units: units on a scale
        median (full range (min-max))
    2 (2 to 3)
    No statistical analyses for this end point

    Secondary: Long-term Pharmacodynamics (PD) of SC Asfotase Alfa: Plasma Inorganic Pyrophosphate (PPi) Levels

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    End point title
    Long-term Pharmacodynamics (PD) of SC Asfotase Alfa: Plasma Inorganic Pyrophosphate (PPi) Levels
    End point description
    Outcome measure is the change from Baseline in plasma inorganic pyrophosphate (PPi) levels. The time period is pre-dose (Baseline from the ENB-002-08 study [NCT00744042]) to the last assessment for each patient in the ENB-003-08 study, which represents up to 90 months of exposure for the combined studies.
    End point type
    Secondary
    End point timeframe
    90 months
    End point values
    Asfotase Alfa
    Number of subjects analysed
    7 [3]
    Units: uM
    median (full range (min-max))
        PPi change from baseline (uM)
    -2.46 (-9.73 to 2.72)
    Notes
    [3] - Change from Baseline could not be calculated for 3 patients due to non-evaluable samples at Baseline
    No statistical analyses for this end point

    Secondary: To assess the long-term pharmacodynamics (PD) of SC asfotase alfa: Pyridoxal-5-phosphate (PLP) levels

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    End point title
    To assess the long-term pharmacodynamics (PD) of SC asfotase alfa: Pyridoxal-5-phosphate (PLP) levels
    End point description
    Outcome measure is the change from Baseline in pyridoxal-5-phosphate (PLP) levels. The time period is pre-dose (Baseline from the ENB-002-08 study [NCT00744042]) to the last assessment for each patient in the ENB-003-08 study, which represents up to 90 months of exposure for the combined studies.
    End point type
    Secondary
    End point timeframe
    Up to 90 months
    End point values
    Asfotase Alfa
    Number of subjects analysed
    8 [4]
    Units: ng/mL
    median (full range (min-max))
        PLP change from baseline (ng/mL)
    -266.2 (-844.3 to 184)
    Notes
    [4] - Change from Baseline could not be calculated for 2 patients due to non-evaluable samples at Baseline
    No statistical analyses for this end point

    Secondary: The effect of SC asfotase alfa on growth: Height/length Z-scores

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    End point title
    The effect of SC asfotase alfa on growth: Height/length Z-scores
    End point description
    Outcome measure is the change from Baseline in Z-scores for height/length. The time period is pre-dose (Baseline from the ENB-002-08 study [NCT00744042]) to the last assessment in the ENB-003-08 study, which represents up to 90 months of exposure in the combined studies.
    End point type
    Secondary
    End point timeframe
    Up to 90 months
    End point values
    Asfotase Alfa
    Number of subjects analysed
    10
    Units: n/a
    median (full range (min-max))
        Change from Baseline in Z-scores for height/length
    1.93 (-3.2 to 4.6)
    No statistical analyses for this end point

    Secondary: To assess the effect of SC asfotase alfa on growth: Weight Z-scores

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    End point title
    To assess the effect of SC asfotase alfa on growth: Weight Z-scores
    End point description
    Outcome measure is the change from Baseline in Z-scores for weight. The time period is pre-dose (Baseline from the ENB-002-08 study [NCT00744042]) to the last assessment in the ENB-003-08 study, which represents up to 90 months of exposure in the combined studies.
    End point type
    Secondary
    End point timeframe
    Up to 90 months
    End point values
    Asfotase Alfa
    Number of subjects analysed
    10
    Units: n/a
    median (full range (min-max))
        Weight Z-score change from baseline
    2.43 (-2.9 to 5.2)
    No statistical analyses for this end point

    Secondary: The effect of SC asfotase alfa on respiratory function

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    End point title
    The effect of SC asfotase alfa on respiratory function
    End point description
    Outcome measure is the shift in the proportion of patients requiring respiratory support at their last assessment in Study ENB-003-08 compared with Baseline. The time period is pre-dose (Baseline from the ENB-002-08 study [NCT00744042]) to the last assessment in the ENB-003-08 study, which represents up to 90 months of exposure in the combined studies.
    End point type
    Secondary
    End point timeframe
    Up to 90 months
    End point values
    Asfotase Alfa
    Number of subjects analysed
    10
    Units: Participants
        No respiratory support
    9
        Supplemental oxygen
    0
        Continuous positive airway pressure
    0
        Mechanical ventilation
    1
        Biphasic positive airway pressure
    0
        Other
    0
    No statistical analyses for this end point

    Adverse events

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    Adverse events information
    Timeframe for reporting adverse events
    Adverse events were recorded from the time the parents/legal guardians signed the ICF through completion of the patient's participation in the study.
    Assessment type
    Systematic
    Dictionary used for adverse event reporting
    Dictionary name
    MedDRA
    Dictionary version
    13.0
    Reporting groups
    Reporting group title
    Asfotase Alfa
    Reporting group description
    -

    Serious adverse events
    Asfotase Alfa
    Total subjects affected by serious adverse events
         subjects affected / exposed
    9 / 10 (90.00%)
         number of deaths (all causes)
    1
         number of deaths resulting from adverse events
    0
    Vascular disorders
    Deep vein thrombosis
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Surgical and medical procedures
    Central venous catheter removal
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Tracheal fistula repair
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Tracheostomy tube removal
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    General disorders and administration site conditions
    Immediate post-injection reaction
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    medical device complication
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Respiratory, thoracic and mediastinal disorders
    Adenoidal disorder
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Apnoeic attack
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Asthma
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Respiratory failure
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Restrictive pulmonary disease
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Sleep apnoea syndrome
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Tonsillar disorder
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Investigations
    Blood urea increased
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    CSF pressure
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Investigation
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Injury, poisoning and procedural complications
    Femur fracture
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Stress fracture
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Congenital, familial and genetic disorders
    Congenital bowing of long bones
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Craniosynostosis
         subjects affected / exposed
    4 / 10 (40.00%)
         occurrences causally related to treatment / all
    1 / 5
         deaths causally related to treatment / all
    0 / 0
    Talipes
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Cardiac disorders
    Cyanosis
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Nervous system disorders
    Intracranial pressure increased
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Ear and labyrinth disorders
    Conductive deafness
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    Eye disorders
    Papilloedema
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Hepatobiliary disorders
    Chronic hepatitis
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    Skin and subcutaneous tissue disorders
    Urticaria
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Renal and urinary disorders
    Nephrolithiasis
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Urinary tract obstruction
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Musculoskeletal and connective tissue disorders
    Scoliosis
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Infections and infestations
    Bacterial tracheitis
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Croup infectious
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Pneumonia
         subjects affected / exposed
    3 / 10 (30.00%)
         occurrences causally related to treatment / all
    0 / 3
         deaths causally related to treatment / all
    0 / 0
    Respiratory syncytial virus bronchiolitis
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Septic shock
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 1
    Tracheitis
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Metabolism and nutrition disorders
    Feeding disorder of infancy or early childhood
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Weight gain poor
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Frequency threshold for reporting non-serious adverse events: 0%
    Non-serious adverse events
    Asfotase Alfa
    Total subjects affected by non serious adverse events
         subjects affected / exposed
    10 / 10 (100.00%)
    Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    Melanocytic naevus
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Skin papilloma
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    General disorders and administration site conditions
    Catheter site rash
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Injection site atrophy
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    2
    Injection site calcification
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    2
    Injection site discolouration
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Injection site erythema
         subjects affected / exposed
    4 / 10 (40.00%)
         occurrences all number
    18
    Injection site haematoma
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Injection site hypertrophy
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    8
    Injection site inflammation
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    2
    Injection site nodule
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Injection site reaction
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    3
    Injection site swelling
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    5
    Injection site warmth
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Pain
         subjects affected / exposed
    3 / 10 (30.00%)
         occurrences all number
    4
    Pyrexia
         subjects affected / exposed
    7 / 10 (70.00%)
         occurrences all number
    21
    Vaccination site inflammation
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Immune system disorders
    Drug hypersensitivity
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Immunisation reaction
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Seasonal allergy
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Reproductive system and breast disorders
    Breast enlargement
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Respiratory, thoracic and mediastinal disorders
    Adenoidal disorder
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Bronchial hyperreactivity
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Cough
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    6
    Epistaxis
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    4
    Increased upper airway secretion
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    2
    Nasal congestion
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Nasal polyps
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Oropharyngeal pain
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Rales
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Respiratory distress
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Rhinitis allergic
         subjects affected / exposed
    3 / 10 (30.00%)
         occurrences all number
    4
    Rhinorrhoea
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    4
    Sinus congestion
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Sleep apnoea syndrome
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Tonsillar hypertrophy
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    2
    Wheezing
         subjects affected / exposed
    3 / 10 (30.00%)
         occurrences all number
    5
    Psychiatric disorders
    Abnormal behaviour
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Agitation
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Anticipatory anxiety
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Anxiety
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Fear of needles
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Sleep disorder
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Investigations
    Alanine aminotransferase increased
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Blood alkaline phosphatase abnormal
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Oxygen saturation decreased
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    3
    Staphylococcus test positive
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Vitamin D decreased
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    2
    Vitamin D increased
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Hypophosphataemic rickets
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Injury, poisoning and procedural complications
    Adverse event following immunisation
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Arthropod sting
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Clavicle fracture
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    2
    Contusion
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Face injury
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Foreign body
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Hand fracture
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Head injury
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Joint sprain
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    2
    Limb injury
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Lower limb fracture
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    2
    Mouth injury
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Periorbital haematoma
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Procedural complication
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Procedural pain
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Procedural site reaction
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    2
    Rib fracture
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Scapula fracture
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Skin laceration
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Tibia fracture
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Tracheal haemorrhage
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Upper limb fracture
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    2
    Urine calcium/creatinine ratio increased
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    3
    Congenital, familial and genetic disorders
    Craniosynostosis
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    5
    Nervous system disorders
    Headache
         subjects affected / exposed
    5 / 10 (50.00%)
         occurrences all number
    14
    Speech disorder developmental
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Blood and lymphatic system disorders
    Anaemia
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Leukopenia
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Microcytosis
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Neutropenia
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Ear and labyrinth disorders
    Deafness
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Eustachian tube dysfunction
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Middle ear disorder
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Otorrhoea
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Tympanic membrane perforation
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Vertigo
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Eye disorders
    Astigmatism
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Conjunctival deposit
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    2
    Conjunctival hyperaemia
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Conjunctivitis
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    3
    Eye pain
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    2
    Lacrimation increased
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Myopia
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Optic disc drusen
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Optic nerve disorder
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Papilloedema
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Visual impairment
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    4
    Gastrointestinal disorders
    Abdominal discomfort
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Abdominal pain
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    9
    Constipation
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    4
    Dental caries
         subjects affected / exposed
    4 / 10 (40.00%)
         occurrences all number
    5
    Diarrhoea
         subjects affected / exposed
    3 / 10 (30.00%)
         occurrences all number
    5
    Dysphagia
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Gastritis
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Gingival swelling
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    2
    Gingivitis
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Ileus
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Impaired gastric emptying
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Mouth ulceration
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Nausea
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Stomatitis
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Teething
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Tooth loss
         subjects affected / exposed
    4 / 10 (40.00%)
         occurrences all number
    8
    Toothache
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Vomiting
         subjects affected / exposed
    5 / 10 (50.00%)
         occurrences all number
    14
    Hepatobiliary disorders
    Cholelithiasis
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Skin and subcutaneous tissue disorders
    Acne
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Alopecia
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Dermatitis allergic
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Dry skin
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Excessive granulation tissue
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Lipohypertrophy
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Rash
         subjects affected / exposed
    4 / 10 (40.00%)
         occurrences all number
    5
    Rash papular
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    3
    Skin discolouration
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    2
    Skin irritation
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Urticaria
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Urticaria contact
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Renal and urinary disorders
    Dysuria
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    2
    Haematuria
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Hydronephrosis
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    3
    Nephrocalcinosis
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Renal cyst
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    2
    Renal pain
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    2
    Nephrolithiasis
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Endocrine disorders
    Precocious puberty
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Musculoskeletal and connective tissue disorders
    Arthralgia
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    2
    Back pain
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    2
    Foot deformity
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Mobility decreased
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Osteopenia
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Pain in extremity
         subjects affected / exposed
    4 / 10 (40.00%)
         occurrences all number
    19
    Scoliosis
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Infections and infestations
    Abscess jaw
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    2
    Acute sinusitis
         subjects affected / exposed
    3 / 10 (30.00%)
         occurrences all number
    4
    Bronchitis
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Cellulitis
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    conjunctivitis infective
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Croup infectious
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    3
    Cystitis
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Gastroenteritis
         subjects affected / exposed
    3 / 10 (30.00%)
         occurrences all number
    9
    Gastroenteritis viral
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    2
    H1N1 influenza
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Hordeolum
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Influenza
         subjects affected / exposed
    3 / 10 (30.00%)
         occurrences all number
    7
    Injection site cellulitis
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    3
    Laryngitis
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Lice infestation
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Lower respiratory tract infection
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Molluscum contagiosum
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    2
    Nasopharyngitis
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Otitis externa
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Otitis media
         subjects affected / exposed
    6 / 10 (60.00%)
         occurrences all number
    23
    Otitis media acute
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Otitis media chronic
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Pharyngitis
         subjects affected / exposed
    3 / 10 (30.00%)
         occurrences all number
    8
    Pneumonia
         subjects affected / exposed
    5 / 10 (50.00%)
         occurrences all number
    7
    Pneumonia bacterial
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    pneumonia primary atypical
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Rhinitis
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    5
    Sinusitis
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    8
    Skin infection
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Tonsillitis
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    6
    Tooth abscess
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Tracheitis
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    5
    Upper respiratory tract infection
         subjects affected / exposed
    8 / 10 (80.00%)
         occurrences all number
    77
    Varicella
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    2
    Viral infection
         subjects affected / exposed
    3 / 10 (30.00%)
         occurrences all number
    3
    Viral pharyngitis
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Viral upper respiratory tract infection
         subjects affected / exposed
    2 / 10 (20.00%)
         occurrences all number
    5
    Metabolism and nutrition disorders
    Abnormal weight gain
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Fluid overload
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1
    Weight gain poor
         subjects affected / exposed
    1 / 10 (10.00%)
         occurrences all number
    1

    More information

    Close Top of page

    Substantial protocol amendments (globally)

    Were there any global substantial amendments to the protocol? Yes
    Date
    Amendment
    12 Mar 2009
    The reference to compassionate use has been removed
    15 Jun 2009
    o Increase of the study center and patient enrolled number o Ventilator use assessment was changed to Respiratory support o Addition of assessment: PTH, urinary calcium and renal ultrasound
    01 Feb 2010
    o Study duration increase to 2 years o Addition of several new assessment (i.e dental assessment, funduscopic examination and vital sign assessment) o Safety section of the protocol was revised to clarify some points
    15 Feb 2011
    study duration was increased and included changes to the main inclusion and exclusion criteria
    18 Apr 2011
    End of Study was re-defined based on competent authorities feedback
    21 Feb 2012
    the main changes were to align the assessment schedule and extend the study period to 60 months
    05 Dec 2013
    the main changes were to align the assessment schedule and extend the study period to 84 months or until regulatory approval and commercial availability of asfotase alfa
    10 Feb 2014
    o The maximum study duration for the United Kingdom has been specifically called out as being 84 months o Contact information for reporting serious adverse events has been added.
    11 Jun 2014
    the main changes were to align the assessment schedule
    09 Feb 2015
    the main changes was to clarify the fact that medical and surgical history collection for the study includes additional historical information relevant to HPP

    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
    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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