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    Clinical Trial Results:
    A Phase III, Open-Label, Clinical Trial to Study the Safety and Immunogenicity of the Quadrivalent HPV (Types 6, 11, 16, 18) L1 VLP Particle (VLP) Vaccine in 9- to 15-Year- Old Japanese Boys

    Summary
    EudraCT number
    2015-004212-37
    Trial protocol
    Outside EU/EEA  
    Global end of trial date
    08 Aug 2018

    Results information
    Results version number
    v1(current)
    This version publication date
    16 Mar 2019
    First version publication date
    16 Mar 2019
    Other versions

    Trial information

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    Trial identification
    Sponsor protocol code
    V501-200
    Additional study identifiers
    ISRCTN number
    -
    US NCT number
    NCT02576054
    WHO universal trial number (UTN)
    -
    Sponsors
    Sponsor organisation name
    Merck Sharp & Dohme Corp.
    Sponsor organisation address
    2000 Galloping Hill Road, Kenilworth, NJ, United States, 07033
    Public contact
    Clinical Trials Disclosure, Merck Sharp & Dohme Corp., ClinicalTrialsDisclosure@merck.com
    Scientific contact
    Clinical Trials Disclosure, Merck Sharp & Dohme Corp., ClinicalTrialsDisclosure@merck.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
    08 Aug 2018
    Is this the analysis of the primary completion data?
    No
    Global end of trial reached?
    Yes
    Global end of trial date
    08 Aug 2018
    Was the trial ended prematurely?
    No
    General information about the trial
    Main objective of the trial
    The primary objective of the study is to demonstrate that administration of V501 induces high seroconversion rates for the vaccine HPV types (6, 11, 16 and 18) at 4 weeks post dose 3 in 9- to 15- year-old Japanese boys.
    Protection of trial subjects
    This study was conducted in conformance with Good Clinical Practice standards and applicable country and/or local statutes and regulations regarding ethical committee review, informed consent, and the protection of human subjects participating in biomedical research.
    Background therapy
    -
    Evidence for comparator
    -
    Actual start date of recruitment
    20 Nov 2015
    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
    Japan: 101
    Worldwide total number of subjects
    101
    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)
    36
    Adolescents (12-17 years)
    65
    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
    -

    Pre-assignment
    Screening details
    Healthy Japanese male participants between the ages of 9 and 15 years (inclusive) were enrolled in the study. Additional inclusion/exclusion criteria applied.

    Period 1
    Period 1 title
    Vaccination Period
    Is this the baseline period?
    Yes
    Allocation method
    Not applicable
    Blinding used
    Not blinded

    Arms
    Arm title
    V501
    Arm description
    V501 administered as a 0.5 mL intramuscular injection at Day 1, Month 2 and Month 6.
    Arm type
    Experimental

    Investigational medicinal product name
    Quadrivalent HPV (Type 6, 11, 16 and 18) L1 Virus-Like Particle (VLP) vaccine
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Suspension for injection
    Routes of administration
    Intramuscular use
    Dosage and administration details
    Administered as a 0.5 mL intramuscular injection at Day 1, Month 2 and Month 6.

    Number of subjects in period 1
    V501
    Started
    101
    Vaccination 1
    100
    Vaccination 2
    100
    Vaccination 3
    100
    Completed
    100
    Not completed
    1
         Consent withdrawn by subject
    1
    Period 2
    Period 2 title
    Follow-up Period
    Is this the baseline period?
    No
    Allocation method
    Not applicable
    Blinding used
    Not blinded

    Arms
    Arm title
    V501
    Arm description
    Participants that completed Period 1 of the study.
    Arm type
    No intervention

    Investigational medicinal product name
    No investigational medicinal product assigned in this arm
    Number of subjects in period 2
    V501
    Started
    100
    Completed
    100

    Baseline characteristics

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    Baseline characteristics reporting groups
    Reporting group title
    V501
    Reporting group description
    V501 administered as a 0.5 mL intramuscular injection at Day 1, Month 2 and Month 6.

    Reporting group values
    V501 Total
    Number of subjects
    101 101
    Age Categorical
    Units: Subjects
        9 to 12 years of age
    53 53
        13 to 16 years of age
    48 48
    Age Continuous
    Units: years
        arithmetic mean (standard deviation)
    12.2 ( 2.0 ) -
    Gender Categorical
    Units: Subjects
        Male
    101 101
    Race
    Units: Subjects
        Asian
    101 101
    Ethnicity
    Units: Subjects
        Not Hispanic Or Latino
    101 101

    End points

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    End points reporting groups
    Reporting group title
    V501
    Reporting group description
    V501 administered as a 0.5 mL intramuscular injection at Day 1, Month 2 and Month 6.
    Reporting group title
    V501
    Reporting group description
    Participants that completed Period 1 of the study.

    Subject analysis set title
    V501-Efficacy
    Subject analysis set type
    Per protocol
    Subject analysis set description
    All participants that received all 3 vaccinations within acceptable day ranges, were seronegative to the relevant HPV type at day 1, did not have protocol violations that could interfere with evaluation of the immune response, and provided Month 7 serology result within 21 to 49 days post dose 3.

    Subject analysis set title
    V501-Safety
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    All participants who received at least 1 study vaccination and had follow-up safety data.

    Subject analysis set title
    Participants Aged 9 to 15 years (PN 200)-Efficacy
    Subject analysis set type
    Per protocol
    Subject analysis set description
    All participants aged 9 to 15 years of age that received all 3 vaccinations within acceptable day ranges, were seronegative to the relevant HPV type at day 1, did not have protocol violations that could interfere with evaluation of the immune response, and provided Month 7 serology result within 21 to 49 days post dose 3.

    Primary: Percentage of Participants with Seroconversion for HPV Types 6, 11, 16, and 18

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    End point title
    Percentage of Participants with Seroconversion for HPV Types 6, 11, 16, and 18 [1]
    End point description
    Antibodies to HPV Types 6, 11, 16, and 18 were measured using a competitive Luminex immunoassay 4 weeks after 3rd vaccination (Month 7). Antibody titers were expressed as milli Merck units/mL (mMU/mL). Seroconversion was defined as an anti-HPV 6 titer ≥20 milliMerck units per milliliter (mMU/mL, an anti-HPV 11 titer ≥16 mMU/mL, an anti-HPV 16 titer of ≥20 mMU/mL and an anti-HPV 18 titer of ≥24 mMU/mL.
    End point type
    Primary
    End point timeframe
    Four weeks postdose 3 (Month 7)
    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 was planned for this endpoint.
    End point values
    V501-Efficacy
    Number of subjects analysed
    99
    Units: Percentage of Participants
    arithmetic mean (confidence interval 95%)
        Anti-HPV 6 (n=98)
    94.9 (88.5 to 98.3)
        Anti-HPV 11 (n=98)
    99.0 (94.4 to 100.0)
        Anti-HPV 16 (n=99)
    99.0 (94.4 to 100.0)
        Anti-HPV 18 (n=98)
    99.0 (94.4 to 100.0)
    No statistical analyses for this end point

    Primary: Percentage of Participants with Elevated Oral Temperature (≥37.5° C)

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    End point title
    Percentage of Participants with Elevated Oral Temperature (≥37.5° C) [2]
    End point description
    The parent/guardian of the participant was to record the participant’s oral temperature in the evening after each study vaccination and daily for 4 days after each study vaccination. Elevated temperature was defined as ≥99.5°F (≥37.5ºC). The percentage of participants that had an elevated temperature was summarized.
    End point type
    Primary
    End point timeframe
    Up to Day 5 after any vaccination
    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: No statistical analysis was planned for this endpoint.
    End point values
    V501-Safety
    Number of subjects analysed
    100
    Units: Percentage of participants
    number (not applicable)
        ≥ 37.5 °C (99.5 °F) and < 38.0 °C (100.4 °F)
    3.0
        ≥ 38.0 °C (100.4 °F) and < 38.5 °C (101.3 °F)
    1.0
        ≥ 38.5 °C (101.3 °F)
    2.0
    No statistical analyses for this end point

    Primary: Percentage of Participants with an Injection-site Adverse Event

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    End point title
    Percentage of Participants with an Injection-site Adverse Event [3]
    End point description
    An adverse event (AE) is defined as any untoward medical occurrence in a participant which does not necessarily have a causal relationship with study drug. An AE can therefore be any unfavourable and unintended sign, symptom, or disease temporally associated with the use of study drug or a protocol-specified procedure, whether or not considered related to the study drug or protocol-specified procedure. Any worsening of a preexisting condition that is temporally associated with the study drug or protocol-specified procedure is also an AE. The parent/guardian of the participant was to record the presence of any vaccination report card (VRC)-prompted injection-site AEs that occurred in the 5 days after any vaccination. The percentage of participants with an injection-site AE prompted on the VRC (erythema, pain, and swelling) was summarized.
    End point type
    Primary
    End point timeframe
    Up to Day 5 after any vaccination
    Notes
    [3] - 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 was planned for this endpoint.
    End point values
    V501-Safety
    Number of subjects analysed
    100
    Units: Percentage of Participants
        number (not applicable)
    64.0
    No statistical analyses for this end point

    Primary: Percentage of Participants with a Systemic Adverse Event

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    End point title
    Percentage of Participants with a Systemic Adverse Event [4]
    End point description
    An adverse event (AE) is defined as any untoward medical occurrence in a participant which does not necessarily have a causal relationship with study drug. An AE can therefore be any unfavourable and unintended sign, symptom, or disease temporally associated with the use of study drug or a protocol-specified procedure, whether or not considered related to the study drug or protocol-specified procedure. Any worsening of a preexisting condition that is temporally associated with the study drug or protocol-specified procedure is also an AE. The parent/guardian of the participant was to record the presence of any VRC-prompted systemic AEs that occurred in the 5 days after any vaccination The percentage of participants with a systemic AE was summarized.
    End point type
    Primary
    End point timeframe
    Up to Day 15 after any vaccination
    Notes
    [4] - 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 was planned for this endpoint.
    End point values
    V501-Safety
    Number of subjects analysed
    100
    Units: Percentage of Participants
        number (not applicable)
    21.0
    No statistical analyses for this end point

    Primary: Percentage of Participants with a Serious Adverse Event

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    End point title
    Percentage of Participants with a Serious Adverse Event [5]
    End point description
    An AE is defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the sponsor's product, whether or not considered related to the use of the product. A serious adverse event (SAE) is an AE that results in death, is life threatening, results in a persistent or significant disability or incapacity, results in or prolongs an existing hospitalization, is a congenital anomaly or birth defect, is a cancer, is an overdose, or is another important medical event. The percentage of participants that experienced 1 or more SAEs were summarized.
    End point type
    Primary
    End point timeframe
    Up to Day 15 after any vaccination
    Notes
    [5] - 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 was planned for this endpoint.
    End point values
    V501-Safety
    Number of subjects analysed
    100
    Units: Percentage of Participants
        number (not applicable)
    0.0
    No statistical analyses for this end point

    Primary: Percentage of Participants with a Vaccine-related Serious Adverse Event

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    End point title
    Percentage of Participants with a Vaccine-related Serious Adverse Event [6]
    End point description
    An AE is defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the sponsor's product, whether or not considered related to the use of the product. A serious adverse event (SAE) is an AE that results in death, is life threatening, results in a persistent or significant disability or incapacity, results in or prolongs an existing hospitalization, is a congenital anomaly or birth defect, is a cancer, is an overdose, or is another important medical event. The percentage of participants that experienced 1 or more SAEs that were considered at least possibly related to the study vaccine were summarized.
    End point type
    Primary
    End point timeframe
    Up to 30 months
    Notes
    [6] - 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 was planned for this endpoint.
    End point values
    V501-Safety
    Number of subjects analysed
    100
    Units: Percentage of Participants
        number (not applicable)
    0.0
    No statistical analyses for this end point

    Secondary: Geometric Mean Titers for Serum Anti-HPV Types 6, 11, 16, and 18 at Month 7

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    End point title
    Geometric Mean Titers for Serum Anti-HPV Types 6, 11, 16, and 18 at Month 7
    End point description
    Antibodies to HPV Types 6, 11, 16, and 18 were measured using a competitive Luminex immunoassay. Antibody titers were expressed as milli Merck units/mL (mMU/mL). GMTs obtained for each anti-HPV from this study were compared to each of the ant-HPV GMTs obtained in study V501-122 (NCT NCT01862874) in which Japanese males 16 to 26 years received V501 in the same 3 dose regimen, to test a hypothesis that would demonstrate non-inferiority. Due to limitations in EudraCT data entry system, these comparisons cannot be included in the record. The comparisons can be viewed at https://clinicaltrials.gov/ (NCT02576054).
    End point type
    Secondary
    End point timeframe
    Four weeks postdose 3 (Month 7)
    End point values
    Participants Aged 9 to 15 years (PN 200)-Efficacy
    Number of subjects analysed
    99
    Units: mMU/mL
    arithmetic mean (confidence interval 95%)
        Anti-HPV 6 (n=98)
    482.9 (351.1 to 664.1)
        Anti-HPV 11 (n=98)
    1052.8 (851.3 to 1302.0)
        Anti-HPV 16 (n=99)
    3878.3 (2908.5 to 5171.6)
        Anti-HPV 18 (n=98)
    1114.5 (871.6 to 1425.1)
    No statistical analyses for this end point

    Secondary: Geometric Mean Titers for Serum Anti-HPV Types 6, 11, 16, and 18: Persistence at Month 18

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    End point title
    Geometric Mean Titers for Serum Anti-HPV Types 6, 11, 16, and 18: Persistence at Month 18
    End point description
    Antibodies to HPV Types 6, 11, 16, and 18 were measured using a competitive Luminex immunoassay. Antibody titers were expressed as milli Merck units/mL (mMU/mL).
    End point type
    Secondary
    End point timeframe
    12 months postdose 3 (Mouth 18)
    End point values
    V501-Efficacy
    Number of subjects analysed
    99
    Units: mMU/mL
    arithmetic mean (confidence interval 95%)
        Anti-HPV 6 (n=97)
    222.0 (181.8 to 271.3)
        Anti-HPV 11 (n=97)
    259.9 (210.7 to 320.7)
        Anti-HPV 16 (n=98)
    1154.1 (937.3 to 1421.0)
        Anti-HPV 18 (n=97)
    212.1 (165.6 to 271.7)
    No statistical analyses for this end point

    Secondary: Geometric Mean Titers for Serum Anti-HPV Types 6, 11, 16, and 18: Persistence at Month 30

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    End point title
    Geometric Mean Titers for Serum Anti-HPV Types 6, 11, 16, and 18: Persistence at Month 30
    End point description
    Antibodies to HPV Types 6, 11, 16, and 18 were measured using a competitive Luminex immunoassay. Antibody titers were expressed as milli Merck units/mL (mMU/mL).
    End point type
    Secondary
    End point timeframe
    24 months postdose 3 (Month 30)
    End point values
    V501-Efficacy
    Number of subjects analysed
    99
    Units: mMU/mL
    arithmetic mean (confidence interval 95%)
        Anti-HPV 6 (n=98)
    177.5 (145.0 to 217.2)
        Anti-HPV 11 (n=98)
    181.5 (146.3 to 225.2)
        Anti-HPV 16 (n=99)
    831.3 (680.7 to 1015.1)
        Anti-HPV 18 (n=98)
    144.2 (112.2 to 185.2)
    No statistical analyses for this end point

    Secondary: Percentage of Participants with Seroconversion for HPV Types 6, 11, 16, and 18: Persistence at Month 18

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    End point title
    Percentage of Participants with Seroconversion for HPV Types 6, 11, 16, and 18: Persistence at Month 18
    End point description
    Serum antibodies to HPV types were measured with a Competitive Luminex Immunoassay. The serostatus cutoffs (milli Merck U/mL) for HPV types were as follows: HPV Type 6: ≥20; HPV Type 11: ≥16; HPV Type 16: ≥20; HPV Type 18: ≥24
    End point type
    Secondary
    End point timeframe
    12 months postdose 3 (Month 18)
    End point values
    V501-Efficacy
    Number of subjects analysed
    99
    Units: Percentage of Participants
    number (confidence interval 95%)
        Anti-HPV 6 (n=97)
    97.9 (92.7 to 99.7)
        Anti-HPV 11 (n=97)
    100.0 (96.3 to 100.0)
        Anti-HPV 16 (n=98)
    99.0 (94.4 to 100.0)
        Anti HPV 18 (n=97)
    94.8 (88.4 to 98.3)
    No statistical analyses for this end point

    Secondary: Percentage of Participants with Seroconversion for HPV Types 6, 11, 16, and 18: Persistence at Month 30

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    End point title
    Percentage of Participants with Seroconversion for HPV Types 6, 11, 16, and 18: Persistence at Month 30
    End point description
    Serum antibodies to HPV types were measured with a Competitive Luminex Immunoassay. The serostatus cutoffs (milli Merck U/mL) for HPV types were as follows: HPV Type 6: ≥20; HPV Type 11: ≥16; HPV Type 16: ≥20; HPV Type 18: ≥24
    End point type
    Secondary
    End point timeframe
    24 months postdose 3 (Month 30)
    End point values
    V501-Efficacy
    Number of subjects analysed
    99
    Units: Percentage of Participants
    number (confidence interval 95%)
        Anti-HPV 6 (n=98)
    98.0 (92.8 to 99.8)
        Anti-HPV 11 (n=98)
    98.0 (92.8 to 99.8)
        Anti-HPV 16 (n=99)
    99.0 (94.5 to 100.0)
        Anti-HPV 18 (n=98)
    93.9 (87.1 to 97.7)
    No statistical analyses for this end point

    Adverse events

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    Adverse events information
    Timeframe for reporting adverse events
    Up to 30 months
    Adverse event reporting additional description
    Safety population included all participants that received at least 1 vaccination.
    Assessment type
    Systematic
    Dictionary used for adverse event reporting
    Dictionary name
    MedDRA
    Dictionary version
    21.0
    Reporting groups
    Reporting group title
    V501
    Reporting group description
    -

    Serious adverse events
    V501
    Total subjects affected by serious adverse events
         subjects affected / exposed
    0 / 100 (0.00%)
         number of deaths (all causes)
    0
         number of deaths resulting from adverse events
    0
    Frequency threshold for reporting non-serious adverse events: 5%
    Non-serious adverse events
    V501
    Total subjects affected by non serious adverse events
         subjects affected / exposed
    67 / 100 (67.00%)
    General disorders and administration site conditions
    Injection site erythema
         subjects affected / exposed
    31 / 100 (31.00%)
         occurrences all number
    57
    Injection site pain
         subjects affected / exposed
    57 / 100 (57.00%)
         occurrences all number
    130
    Injection site pruritus
         subjects affected / exposed
    6 / 100 (6.00%)
         occurrences all number
    10
    Injection site swelling
         subjects affected / exposed
    34 / 100 (34.00%)
         occurrences all number
    63
    Pyrexia
         subjects affected / exposed
    6 / 100 (6.00%)
         occurrences all number
    8
    Infections and infestations
    Nasopharyngitis
         subjects affected / exposed
    9 / 100 (9.00%)
         occurrences all number
    11

    More information

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    Substantial protocol amendments (globally)

    Were there any global substantial amendments to the protocol? No

    Interruptions (globally)

    Were there any global interruptions to the trial? No

    Limitations and caveats

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