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    Clinical Trial Results:
    A Post Authorization Safety Surveillance Study of Xyntha in Usual Care Settings

    Summary
    EudraCT number
    2008-002456-24
    Trial protocol
    Outside EU/EEA  
    Global end of trial date
    22 Aug 2011

    Results information
    Results version number
    v1(current)
    This version publication date
    30 May 2016
    First version publication date
    30 Jul 2015
    Other versions

    Trial information

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    Trial identification
    Sponsor protocol code
    3082B2-4418
    Additional study identifiers
    ISRCTN number
    -
    US NCT number
    NCT00765726
    WHO universal trial number (UTN)
    -
    Other trial identifiers
    alias: B1831003
    Sponsors
    Sponsor organisation name
    Pfizer Inc.
    Sponsor organisation address
    235 E 42nd Street, New York, United States, NY 10017
    Public contact
    Pfizer ClinicalTrials.gov Call Center, Pfizer, Inc. , 001 8007181021, ClinicalTrials.gov_Inquiries@pfizer.com
    Scientific contact
    Pfizer ClinicalTrials.gov Call Center, Pfizer, Inc. , 001 8007181021, ClinicalTrials.gov_Inquiries@pfizer.com
    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?
    Yes
    Results analysis stage
    Analysis stage
    Final
    Date of interim/final analysis
    15 Dec 2011
    Is this the analysis of the primary completion data?
    No
    Global end of trial reached?
    Yes
    Global end of trial date
    22 Aug 2011
    Was the trial ended prematurely?
    Yes
    General information about the trial
    Main objective of the trial
    To evaluate factor VIII (FVIII) inhibitor development, defined as an inhibitor titer of greater than or equal to (>=)0.6 Bethesda units (BU) using the Nijmegen modification of the Bethesda assay and confirmed by the central laboratory, in subjects treated with Xyntha in usual use.
    Protection of trial subjects
    The study was in compliance with the ethical principles derived from the Declaration of Helsinki and in compliance with all International Conference on Harmonization (ICH) Good Clinical Practice (GCP) Guidelines. All the local regulatory requirements pertinent to safety of trial subjects were followed.
    Background therapy
    -
    Evidence for comparator
    -
    Actual start date of recruitment
    12 Feb 2009
    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
    United States: 7
    Country: Number of subjects enrolled
    New Zealand: 5
    Worldwide total number of subjects
    12
    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)
    3
    Adults (18-64 years)
    9
    From 65 to 84 years
    0
    85 years and over
    0

    Subject disposition

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    Recruitment
    Recruitment details
    -

    Pre-assignment
    Screening details
    Total number of subjects screened were 14, out of which 12 were enrolled in the study. The study was conducted in New Zealand and United States which started on 12 Feb 2009 and study was terminated by sponsor because the sponsor had ongoing studies collecting similar safety data.

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

    Arms
    Arm title
    Xyntha
    Arm description
    Xyntha [moroctocog alfa albumin free cell culture (AF-CC)] administered intravenously (IV) at a dose and frequency prescribed by the treating physician as per local standard of care for up to 2 years.
    Arm type
    Experimental

    Investigational medicinal product name
    Xyntha
    Investigational medicinal product code
    Other name
    Moroctocog alfa albumin free cell culture (AF-CC)
    Pharmaceutical forms
    Injection
    Routes of administration
    Intravenous use
    Dosage and administration details
    Subjects received Xyntha administered IV at a dose and frequency prescribed by the treating physician as per local standard of care for up to 2 years.

    Number of subjects in period 1
    Xyntha
    Started
    12
    Completed
    3
    Not completed
    9
         Consent withdrawn by subject
    1
         Discontinuation of study by sponsor
    8

    Baseline characteristics

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    Baseline characteristics reporting groups
    Reporting group title
    Xyntha
    Reporting group description
    Xyntha [moroctocog alfa albumin free cell culture (AF-CC)] administered intravenously (IV) at a dose and frequency prescribed by the treating physician as per local standard of care for up to 2 years.

    Reporting group values
    Xyntha Total
    Number of subjects
    12 12
    Age categorical
    Units: Subjects
    Age continuous
    Units: years
        arithmetic mean (standard deviation)
    30 ( 13.6 ) -
    Gender categorical
    Units: Subjects
        Female
    0 0
        Male
    12 12

    End points

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    End points reporting groups
    Reporting group title
    Xyntha
    Reporting group description
    Xyntha [moroctocog alfa albumin free cell culture (AF-CC)] administered intravenously (IV) at a dose and frequency prescribed by the treating physician as per local standard of care for up to 2 years.

    Primary: Percentage of Subjects With Factor VIII (FVIII) Inhibitor Development

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    End point title
    Percentage of Subjects With Factor VIII (FVIII) Inhibitor Development [1]
    End point description
    FVIII inhibitor development was defined as an inhibitor titer of more than or equal to 0.6 Bethesda Units (BU) using the Nijmegen modification of the Bethesda assay and confirmed by the central laboratory. Safety analysis population included all enrolled subjects who had taken at least 1 dose of the study medication.
    End point type
    Primary
    End point timeframe
    Month 24 or early withdrawal
    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: Only descriptive data was planned to be reported for this endpoint.
    End point values
    Xyntha
    Number of subjects analysed
    12
    Units: subjects
        number (confidence interval 95%)
    0 (0 to 0.27)
    No statistical analyses for this end point

    Adverse events

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    Adverse events information
    Timeframe for reporting adverse events
    Baseline up to 30 days after last dose of study drug.
    Adverse event reporting additional description
    The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 subject and as nonserious in another, or 1 subject may have experienced both serious, nonserious event during study. EU BR specific AE tables were generated separately as per EU format using latest coding.
    Assessment type
    Non-systematic
    Dictionary used for adverse event reporting
    Dictionary name
    MedDRA
    Dictionary version
    17.1
    Reporting groups
    Reporting group title
    Xyntha
    Reporting group description
    Xyntha [moroctocog alfa albumin free cell culture (AF-CC)] administered intravenously (IV) at a dose and frequency prescribed by the treating physician as per local standard of care for up to 2 years.

    Serious adverse events
    Xyntha
    Total subjects affected by serious adverse events
         subjects affected / exposed
    2 / 12 (16.67%)
         number of deaths (all causes)
    0
         number of deaths resulting from adverse events
    0
    General disorders and administration site conditions
    Drug effect incomplete
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences causally related to treatment / all
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    Gastrointestinal disorders
    Tooth impacted
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Frequency threshold for reporting non-serious adverse events: 5%
    Non-serious adverse events
    Xyntha
    Total subjects affected by non serious adverse events
         subjects affected / exposed
    9 / 12 (75.00%)
    Vascular disorders
    Phlebitis
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1
    Varicose vein
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    2
    General disorders and administration site conditions
    Non-cardiac chest pain
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1
    Pyrexia
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1
    Reproductive system and breast disorders
    Gynaecomastia
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    2
    Painful erection
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1
    Injury, poisoning and procedural complications
    Corneal abrasion
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1
    Head injury
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1
    Incision site hypoaesthesia
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1
    Procedural pain
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1
    Stress fracture
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1
    Tooth fracture
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1
    Congenital, familial and genetic disorders
    Fanconi syndrome
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    2
    Cardiac disorders
    Palpitations
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    2
    Nervous system disorders
    Paraesthesia
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1
    Ear and labyrinth disorders
    Ear pain
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    2
    Gastrointestinal disorders
    Constipation
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1
    Dental caries
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1
    Diarrhoea
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1
    Nausea
         subjects affected / exposed
    3 / 12 (25.00%)
         occurrences all number
    3
    Tongue discolouration
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    2
    Toothache
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1
    Vomiting
         subjects affected / exposed
    2 / 12 (16.67%)
         occurrences all number
    2
    Hepatobiliary disorders
    Biliary dilatation
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    2
    Skin and subcutaneous tissue disorders
    Blister
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1
    Dermatitis contact
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1
    Renal and urinary disorders
    Haematuria
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1
    Urinary retention
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1
    Musculoskeletal and connective tissue disorders
    Arthralgia
         subjects affected / exposed
    3 / 12 (25.00%)
         occurrences all number
    6
    Arthropathy
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    3
    Haemarthrosis
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1
    Joint swelling
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1
    Osteomalacia
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    3
    Osteoporosis
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    2
    Pain in jaw
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    2
    Infections and infestations
    Ear infection
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    2
    Herpes zoster
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1
    Influenza
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1
    Sinusitis
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1
    Upper respiratory tract infection
         subjects affected / exposed
    1 / 12 (8.33%)
         occurrences all number
    1

    More information

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    Substantial protocol amendments (globally)

    Were there any global substantial amendments to the protocol? Yes
    Date
    Amendment
    29 Jul 2008
    1.Immunogenicity section had revisions related to care of subject that developed inhibitor and the type of assay that the inhibitor testing would be done on. 2.Information addition: Investigator to review the infusion log for evaluation of AEs, SAEs and events of special circumstances. 3.Addition of instruction to safety section that the ‘Investigator must continue to follow subjects after final study visit with ongoing inhibitors until inhibitor resolved or stabilized, which ever occurred first.’ 4. Addition of Visit 7 – Follow up call, 30 days after Study Completion, to ask about how the subject is feeling and concomitant medications. 5. Concomitant medications were revised: -Addition of ‘Immune tolerance induction therapy with other Factor VIII products is not acceptable’. -Addition of cyclosporins and anti-TNF agents as immunomodulatory therapy that was not permitted.

    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.
    The study was discontinued because the sponsor had ongoing studies collecting similar safety data.
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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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