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    Clinical Trial Results:
    Long-term Allopurinol Safety Study Evaluating Outcomes in Gout Patients (LASSO)

    Summary
    EudraCT number
    2011-002453-65
    Trial protocol
    DE   BE  
    Global end of trial date
    01 Jan 2013

    Results information
    Results version number
    v1(current)
    This version publication date
    05 Feb 2017
    First version publication date
    05 Feb 2017
    Other versions

    Trial information

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    Trial identification
    Sponsor protocol code
    ALLO-401
    Additional study identifiers
    ISRCTN number
    -
    US NCT number
    NCT01391325
    WHO universal trial number (UTN)
    -
    Sponsors
    Sponsor organisation name
    Ardea Biosciences, Inc.
    Sponsor organisation address
    9390 Towne Centre Dr., San Diego, United States,
    Public contact
    Nihar Bhakta, Ardea Biosciences, Inc., +1 8586526671, nbhakta@ardeabio.com
    Scientific contact
    Nihar Bhakta, Ardea Biosciences, Inc., +1 8586526671, nbhakta@ardeabio.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?
    No
    Results analysis stage
    Analysis stage
    Final
    Date of interim/final analysis
    01 Mar 2013
    Is this the analysis of the primary completion data?
    Yes
    Primary completion date
    01 Jan 2013
    Global end of trial reached?
    Yes
    Global end of trial date
    01 Jan 2013
    Was the trial ended prematurely?
    No
    General information about the trial
    Main objective of the trial
    To evaluate the safety of allopurinol at medically appropriate doses.
    Protection of trial subjects
    This study was conducted in accordance with the protocol, International Conference on Harmonisation (ICH) E6 Good Clinical Practice (GCP), the Declaration of Helsinki (2008), and all other applicable regulatory requirements.
    Background therapy
    -
    Evidence for comparator
    -
    Actual start date of recruitment
    29 Jun 2011
    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 States: 1205
    Country: Number of subjects enrolled
    Canada: 75
    Country: Number of subjects enrolled
    Belgium: 11
    Country: Number of subjects enrolled
    Germany: 14
    Country: Number of subjects enrolled
    New Zealand: 84
    Country: Number of subjects enrolled
    Australia: 104
    Country: Number of subjects enrolled
    South Africa: 242
    Worldwide total number of subjects
    1735
    EEA total number of subjects
    25
    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)
    1486
    From 65 to 84 years
    249
    85 years and over
    0

    Subject disposition

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    Recruitment
    Recruitment details
    -

    Pre-assignment
    Screening details
    1,735 subjects enrolled in the study; however, only 1,732 were treated. Therefore, 1,732 subjects started the treatment period.

    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
    Allopurinol
    Arm description
    Allopurinol: Commercially available allopurinol 100 mg and 300 mg oral tablets will be prescribed by the Investigator according to the approved product label.
    Arm type
    Treatment

    Investigational medicinal product name
    Allopurinol
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Tablet
    Routes of administration
    Oral use
    Dosage and administration details
    100 mg, 300 mg

    Number of subjects in period 1 [1]
    Allopurinol
    Started
    1732
    Completed
    1238
    Not completed
    494
         Adverse event, serious fatal
    2
         Consent withdrawn by subject
    79
         Physician decision
    67
         Adverse event, non-fatal
    69
         Treatment Failure
    35
         Baseline sUA < 6.5 mg/dL
    116
         Sponsor Decision
    7
         Lost to follow-up
    94
         Gout Flare
    3
         Protocol deviation
    22
    Notes
    [1] - The number of subjects reported to be in the baseline period are not the same as the worldwide number enrolled in the trial. It is expected that these numbers will be the same.
    Justification: 1,735 subjects enrolled in the study; however, only 1,732 were treated. Therefore, 1,732 subjects started the treatment period.

    Baseline characteristics

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    Baseline characteristics reporting groups
    Reporting group title
    Allopurinol
    Reporting group description
    Allopurinol: Commercially available allopurinol 100 mg and 300 mg oral tablets will be prescribed by the Investigator according to the approved product label.

    Reporting group values
    Allopurinol Total
    Number of subjects
    1732 1732
    Age Categorical
    Units: participants
        <=18 years
    0 0
        Between 18 and 65 years
    1483 1483
        >=65 years
    249 249
    Age Continuous |
    Units: years
        arithmetic mean (standard deviation)
    51.4 ( 11.93 ) -
    Gender, Male/Female
    Units: participants
        Female
    118 118
        Male
    1614 1614
    Region of Enrollment
    Units: Subjects
        United States
    1203 1203
        Canada
    74 74
        Belgium
    11 11
        Australia
    104 104
        South Africa
    242 242
        Germany
    14 14
        New Zealand
    84 84

    End points

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    End points reporting groups
    Reporting group title
    Allopurinol
    Reporting group description
    Allopurinol: Commercially available allopurinol 100 mg and 300 mg oral tablets will be prescribed by the Investigator according to the approved product label.

    Primary: Safety of allopurinol

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    End point title
    Safety of allopurinol [1]
    End point description
    Proportion of subjects who experienced at least one Treatment Emergent Adverse Event (TEAE) during the study.
    End point type
    Primary
    End point timeframe
    Every month for 6 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: No statistical analysis provided for Safety of Allopurinol. .
    End point values
    Allopurinol
    Number of subjects analysed
    1732
    Units: percentage of subjects
        number (not applicable)
    55.1
    No statistical analyses for this end point

    Secondary: Proportion of subjects with Serum urate (sUA) less than 6.0 mg/dL

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    End point title
    Proportion of subjects with Serum urate (sUA) less than 6.0 mg/dL
    End point description
    Proportion of subjects with serum urate (sUA) less than 6.0 mg/dL at Month 6 using Last Observation Carried Forward (LOCF) for subjects with missing values at Month 6.
    End point type
    Secondary
    End point timeframe
    Month 6
    End point values
    Allopurinol
    Number of subjects analysed
    1732
    Units: percentage of subjects
        number (confidence interval 95%)
    43.4 (41 to 46)
    No statistical analyses for this end point

    Secondary: Incidence of gout flares

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    End point title
    Incidence of gout flares
    End point description
    Proportion of subjects who experienced at least one gout flare requiring treatment during the study.
    End point type
    Secondary
    End point timeframe
    Every month for 6 months.
    End point values
    Allopurinol
    Number of subjects analysed
    1732
    Units: percentage of subjects
        number (confidence interval 95%)
    33.4 (31 to 36)
    No statistical analyses for this end point

    Secondary: Mean change from baseline to Month 6 in SF-36 PCS+MCS

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    End point title
    Mean change from baseline to Month 6 in SF-36 PCS+MCS
    End point description
    The SF-36 is a short-form health survey with 36 questions that yields an 8-scale profile of functional health and well-being scores as well as psychometrically-based physical (PCS) and mental health (MCS) summary. Each scale is directly transformed into a 0-100 scale. The lower the score the more disability. The higher the score the less disability. The component scores (PCS and MCS) are norm-based to a standard population with a mean of 50 and a standard deviation of 10.
    End point type
    Secondary
    End point timeframe
    Month 6
    End point values
    Allopurinol
    Number of subjects analysed
    1732
    Units: units on a scale
    arithmetic mean (standard deviation)
        SF-36 Physical Component Summary
    3.88 ( 8.458 )
        SF-36 Mental Health Component Summary
    0.71 ( 9.076 )
    No statistical analyses for this end point

    Adverse events

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    Adverse events information
    Timeframe for reporting adverse events
    6 months
    Assessment type
    Non-systematic
    Dictionary used for adverse event reporting
    Dictionary name
    MeDRA 14.0
    Dictionary version
    14.0
    Reporting groups
    Reporting group title
    Allopurinol
    Reporting group description
    Treatment. Allopurinol: Commercially available allopurinol 100 mg and 300 mg oral tablets will be prescribed by the Investigator according to the approved product label.

    Serious adverse events
    Allopurinol
    Total subjects affected by serious adverse events
         subjects affected / exposed
    52 / 1732 (3.00%)
         number of deaths (all causes)
    2
         number of deaths resulting from adverse events
    0
    Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    Acute lymphocytic leukaemia
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Bladder cancer
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Malignant melanoma
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Prostate cancer
         subjects affected / exposed
    2 / 1732 (0.12%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Renal cell carcinoma
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Vascular disorders
    Deep vein thrombosis
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Thrombosis
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    General disorders and administration site conditions
    Death
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Non-cardiac chest pain
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Sudden death
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Respiratory, thoracic and mediastinal disorders
    Asthma
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Epistaxis
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Pleural effusion
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Pulmonary embolism
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Psychiatric disorders
    Bipolar I disorder
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Breathing-related sleep disorder
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Panic disorder with agoraphobia
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Investigations
    Blood glucose increased
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Blood pressure increased
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Pancreatic enzymes increased
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Injury, poisoning and procedural complications
    Foot fracture
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Ligament rupture
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Tendon rupture
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Cardiac disorders
    Acute coronary syndrome
         subjects affected / exposed
    2 / 1732 (0.12%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Acute myocardial infarction
         subjects affected / exposed
    3 / 1732 (0.17%)
         occurrences causally related to treatment / all
    0 / 3
         deaths causally related to treatment / all
    0 / 0
    Atrial fibrillation
         subjects affected / exposed
    2 / 1732 (0.12%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Atrial flutter
         subjects affected / exposed
    2 / 1732 (0.12%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Cardiac failure acute
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Cardiac failure congestive
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Coronary artery occlusion
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Myocardial infarction
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Pericarditis
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Pericarditis constrictive
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Supraventricular tachycardia
         subjects affected / exposed
    2 / 1732 (0.12%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Nervous system disorders
    Convulsion
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Haemorrhagic stroke
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Ischaemic stroke
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Blood and lymphatic system disorders
    Anaemia
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Gastrointestinal disorders
    Colonic obstruction
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Gastric haemorrhage
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Intestinal obstruction
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Pancreatitis
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Small intestinal obstruction
         subjects affected / exposed
    2 / 1732 (0.12%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Hepatobiliary disorders
    Biliary colic
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Cholelithiasis
         subjects affected / exposed
    1 / 1732 (0.06%)
         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 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Renal failure
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Renal failure acute
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Urinary incontinence
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Musculoskeletal and connective tissue disorders
    Gouty arthritis
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Osteoarthritis
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Infections and infestations
    Abscess
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Abscess intestinal
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Abscess limb
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Cellulitis
         subjects affected / exposed
    2 / 1732 (0.12%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Cholecystitis infective
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Diverticulitis
         subjects affected / exposed
    2 / 1732 (0.12%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Gastroenteritis
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Meningitis viral
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Osteomyelitis
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Perirectal abscess
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Pneumonia
         subjects affected / exposed
    3 / 1732 (0.17%)
         occurrences causally related to treatment / all
    0 / 3
         deaths causally related to treatment / all
    0 / 0
    Sepsis
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Staphylococcal bacteraemia
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Staphylococcal infection
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Urinary tract infection
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Metabolism and nutrition disorders
    Gout
         subjects affected / exposed
    2 / 1732 (0.12%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Lactic acidosis
         subjects affected / exposed
    1 / 1732 (0.06%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Frequency threshold for reporting non-serious adverse events: 1%
    Non-serious adverse events
    Allopurinol
    Total subjects affected by non serious adverse events
         subjects affected / exposed
    654 / 1732 (37.76%)
    Investigations
    Blood creatine phosphokinase increased
         subjects affected / exposed
    48 / 1732 (2.77%)
         occurrences all number
    70
    Alanine aminotransferase increased
         subjects affected / exposed
    38 / 1732 (2.19%)
         occurrences all number
    45
    Aspartate aminotransferase increased
         subjects affected / exposed
    23 / 1732 (1.33%)
         occurrences all number
    30
    Liver function test abnormal
         subjects affected / exposed
    19 / 1732 (1.10%)
         occurrences all number
    23
    Injury, poisoning and procedural complications
    Muscle strain
         subjects affected / exposed
    25 / 1732 (1.44%)
         occurrences all number
    34
    Vascular disorders
    Hypertension
         subjects affected / exposed
    43 / 1732 (2.48%)
         occurrences all number
    45
    Nervous system disorders
    Headache
         subjects affected / exposed
    41 / 1732 (2.37%)
         occurrences all number
    58
    Gastrointestinal disorders
    Diarrhoea
         subjects affected / exposed
    77 / 1732 (4.45%)
         occurrences all number
    90
    Nausea
         subjects affected / exposed
    24 / 1732 (1.39%)
         occurrences all number
    28
    Respiratory, thoracic and mediastinal disorders
    Nasal congestion
         subjects affected / exposed
    22 / 1732 (1.27%)
         occurrences all number
    25
    Skin and subcutaneous tissue disorders
    Rash
         subjects affected / exposed
    26 / 1732 (1.50%)
         occurrences all number
    57
    Musculoskeletal and connective tissue disorders
    Athralgia
         subjects affected / exposed
    55 / 1732 (3.18%)
         occurrences all number
    70
    Back pain
         subjects affected / exposed
    45 / 1732 (2.60%)
         occurrences all number
    55
    Pain in extremity
         subjects affected / exposed
    44 / 1732 (2.54%)
         occurrences all number
    51
    Musculoskeletal pain
         subjects affected / exposed
    20 / 1732 (1.15%)
         occurrences all number
    21
    Infections and infestations
    Upper Respiratory Tract Infection
         subjects affected / exposed
    100 / 1732 (5.77%)
         occurrences all number
    127
    Nasalphrayngitis
         subjects affected / exposed
    53 / 1732 (3.06%)
         occurrences all number
    64
    Bronchitis
         subjects affected / exposed
    29 / 1732 (1.67%)
         occurrences all number
    34
    Influenza
         subjects affected / exposed
    26 / 1732 (1.50%)
         occurrences all number
    38
    Urinary tract infection
         subjects affected / exposed
    19 / 1732 (1.10%)
         occurrences all number
    26

    More information

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    Substantial protocol amendments (globally)

    Were there any global substantial amendments to the protocol? Yes
    Date
    Amendment
    06 Jun 2011
    The primary purpose of this amendment was to provide consistency with the proposed Phase 3 and to address the Institutional Review Board questions regarding genetic testing.
    21 Jun 2011
    The purposes of this amendment was to increase the global scale of this study to encompass a greater diversity of patients in multiple countries and regions; To clarify minimum dose of allopurinol allowed; To examine additional patient reported outcomes to further our understanding of patient knowledge and experience of gout before, during and after treatment.
    25 Jul 2011
    This amendment was implemented at a limited (but large) number of investigational sites in the United States and Canada in order generate preliminary data intended to potentially guide future hypothesis-testing in subsequent gout studies.

    Interruptions (globally)

    Were there any global interruptions to the trial? No

    Limitations and caveats

    Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data.
    None reported
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    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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