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    Clinical Trial Results:
    A Phase 4 study to evaluate the safety and immunogenicity of monovalent oral polio vaccine type 2 in healthy OPV-vaccinated adults

    Summary
    EudraCT number
    2015-003325-33
    Trial protocol
    BE  
    Global end of trial date
    30 May 2016

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

    Trial information

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    Trial identification
    Sponsor protocol code
    UAM1
    Additional study identifiers
    ISRCTN number
    -
    US NCT number
    -
    WHO universal trial number (UTN)
    -
    Sponsors
    Sponsor organisation name
    University of Antwerp
    Sponsor organisation address
    Universiteitsplein 1, Wilrijk, Belgium, 2610
    Public contact
    Ilse De Coster, MD, University of Antwerp , +32 (0)3265 26 52, ilse.decoster@uantwerpen.be
    Scientific contact
    Prof. Dr. PhD. Philippe Beutels, University of Antwerp , +32 (0)3265 26 58, philippe.beutels@uantwerpen.be
    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
    30 May 2016
    Is this the analysis of the primary completion data?
    Yes
    Primary completion date
    30 May 2016
    Global end of trial reached?
    Yes
    Global end of trial date
    30 May 2016
    Was the trial ended prematurely?
    No
    General information about the trial
    Main objective of the trial
    The primary objectives of the study are to assess the safety (serious adverse events [SAEs] and severe adverse events [AEs]) and immunogenicity (seroprotection rate) of SABIN mOPV2 in healthy OPV-vaccinated adults.
    Protection of trial subjects
    In this study only adults who have received at least 3 doses of OPV in the past will be enrolled. exclusion citeria ( amongst others): . Having Crohn’s disease or ulcerative colitis or having had major surgery of the gastrointestinal tract involving significant loss or resection of the bowel; . A known allergy, hypersensitivity, or intolerance to the study vaccine, or to any of its components, or to any antibiotics; . Any confirmed or suspected immunosuppressive or immunodeficiency condition (including human immunodeficiency virus [HIV] infection); . Will have household or professional contact with known immunosuppressed people or people without full polio vaccination (i.e. complete priming) within 28 days after vaccination; . Neonatal nurses or others having professional contact with children under 6 months old within 28 days after vaccination; . Chronic administration (i.e., longer than 14 days) of immunosuppressant drugs or other immune-modifying drugs within 6 months prior to the first vaccine dose or planned use during the study. For instance, for corticosteroids, this means prednisone, or equivalent, ≥ 0.5 mg/kg/day (inhaled and topical steroids are allowed, whereas intra-articular and epidural injection/administration of steroids are not allowed); . Presence of contraindications to administration of the study vaccine on Day 0: acute severe febrile illness deemed by the Investigator to be a contraindication for vaccination or persistent diarrhea or vomiting;
    Background therapy
    -
    Evidence for comparator
    -
    Actual start date of recruitment
    01 Oct 2015
    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
    Belgium: 100
    Worldwide total number of subjects
    100
    EEA total number of subjects
    100
    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)
    100
    From 65 to 84 years
    0
    85 years and over
    0

    Subject disposition

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    Recruitment
    Recruitment details
    This was a single center, open, randomized study, conducted at the Centre for the Evaluation of vaccination, Vaccine & Infectious Disease Institute, University of Antwerp, Belgium between 25 January 2016 and 30 May 2016.

    Pre-assignment
    Screening details
    One hundred and twelve volunteers werd screened and 100 participants were enrolled. Eligible participants were healthy adults aged 18-50 years who had received at least 3 vaccinations with oral polio vaccine (OPV) in the past. No contact with immunosuppressed people or people (incl. children <6 m) without full polio vaccination 28d after dosing

    Period 1
    Period 1 title
    overall trial (overall period)
    Is this the baseline period?
    Yes
    Allocation method
    Randomised - controlled
    Blinding used
    Not blinded

    Arms
    Are arms mutually exclusive
    Yes

    Arm title
    Group 1: One dose of mOPV2
    Arm description
    Participants received one dose of monovalent oral polio vaccine type 2 (mOPV2) on study day 0, administered orally as 2 drops (0.1 mL total; approximately 10# 50% cell culture infectious dose units (CCID50)).
    Arm type
    Experimental

    Investigational medicinal product name
    Polio Sabin™ Mono Two
    Investigational medicinal product code
    mOPV2
    Other name
    Pharmaceutical forms
    Oral drops
    Routes of administration
    Oral use
    Dosage and administration details
    participants in Group 1 received one dose of vaccine (0.1 ml) contained in two drops which are delivered from the polyethylene dropper supplied with the multidose container.

    Arm title
    Group 2: Two doses of mOPV2
    Arm description
    Participants received two doses of mOPV2 28 days apart (Day0 and Day 28), administered orally as 2 drops (0.1 mL total; approximately 10# CCID50)
    Arm type
    Experimental

    Investigational medicinal product name
    Polio Sabin™ Mono Two
    Investigational medicinal product code
    mOPV2
    Other name
    Pharmaceutical forms
    Oral drops
    Routes of administration
    Oral use
    Dosage and administration details
    Participants received two doses of mOPV2 28 days apart (Day0 and Day 28), administered orally as 2 drops (0.1 mL total) which are delivered from the polyethylene dropper supplied with the multidose container.

    Number of subjects in period 1
    Group 1: One dose of mOPV2 Group 2: Two doses of mOPV2
    Started
    50
    50
    Completed
    50
    50

    Baseline characteristics

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    Baseline characteristics reporting groups
    Reporting group title
    Group 1: One dose of mOPV2
    Reporting group description
    Participants received one dose of monovalent oral polio vaccine type 2 (mOPV2) on study day 0, administered orally as 2 drops (0.1 mL total; approximately 10# 50% cell culture infectious dose units (CCID50)).

    Reporting group title
    Group 2: Two doses of mOPV2
    Reporting group description
    Participants received two doses of mOPV2 28 days apart (Day0 and Day 28), administered orally as 2 drops (0.1 mL total; approximately 10# CCID50)

    Reporting group values
    Group 1: One dose of mOPV2 Group 2: Two doses of mOPV2 Total
    Number of subjects
    50 50 100
    Age categorical
    Units: Subjects
        In utero
    0
        Preterm newborn infants (gestational age < 37 wks)
    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)
    0
        From 65-84 years
    0
        85 years and over
    0
    Age continuous
    Units: years
        arithmetic mean (standard deviation)
    26 ( 8 ) 28 ( 9 ) -
    Gender categorical
    Units: Subjects
        Female
    31 25 56
        Male
    19 25 44
    Race
    Units: Subjects
        White
    48 49 97
        Asian
    2 0 2
        Black or African American
    0 1 1
        Other
    0 0 0
    Number of Prior OPV vaccinations
    Units: Subjects
        None
    0 0 0
        Three
    6 6 12
        Four
    44 44 88
        Five
    0 0 0
    Number of Prior IPV vaccinations
    Units: Subjects
        None
    46 47 93
        One
    4 3 7
        Four
    0 0 0
        Five
    0 0 0
        Six or more
    0 0 0

    End points

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    End points reporting groups
    Reporting group title
    Group 1: One dose of mOPV2
    Reporting group description
    Participants received one dose of monovalent oral polio vaccine type 2 (mOPV2) on study day 0, administered orally as 2 drops (0.1 mL total; approximately 10# 50% cell culture infectious dose units (CCID50)).

    Reporting group title
    Group 2: Two doses of mOPV2
    Reporting group description
    Participants received two doses of mOPV2 28 days apart (Day0 and Day 28), administered orally as 2 drops (0.1 mL total; approximately 10# CCID50)

    Subject analysis set title
    Group 1+2: mOPV2
    Subject analysis set type
    Sub-group analysis
    Subject analysis set description
    Participants received one dose of mOPV2 on study Day 0

    Subject analysis set title
    Group 1+2: mOPV2 Post-dose 1
    Subject analysis set type
    Sub-group analysis
    Subject analysis set description
    participants received vaccination with mOPV2 on study Day 0

    Subject analysis set title
    Group 2: mOPV2 Post-dose 2
    Subject analysis set type
    Sub-group analysis
    Subject analysis set description
    participants received a second vaccination with mOPV2 on Day 28

    Subject analysis set title
    Group 2: Two doses of mOPV2
    Subject analysis set type
    Sub-group analysis
    Subject analysis set description
    Participants received two doses of mOPV2 28 days apart (Day 0 and Day 28)

    Primary: Number of participants with Serious Adverse Events and Severe Adverse Events

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    End point title
    Number of participants with Serious Adverse Events and Severe Adverse Events [1]
    End point description
    An SAE is any untoward medical occurrence that at any dose met any of the following conditions: • Resulted in death; • Was life-threatening; • Required inpatient hospitalization or prolongation of existing inpatient hospitalization; • Resulted in persistent or significant disability/incapacity; • Was a congenital anomaly/birth defect; • Was medically important. A solicited AE is a pre-selected sign or symptom that occurred within 7 days after each dose, whereas unsolicited AEs were collected throughout the study. Solicited AEs included headache, fatigue, myalgia, arthralgia, paresthesia, anesthesia, paralysis, nausea, vomiting, diarrhea, abdominal pain, and fever. A severe AE is an AE that prevented normal everyday activities and which was not classified as an SAE. A related AE is an AE the investigator considered probably or possibly caused by the study vaccine, meaning that there was a reasonable temporal association or the AE was not attributable to other conditions.
    End point type
    Primary
    End point timeframe
    Up to 42 days after each vaccination
    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: In this study all analyses are descriptive, therefore no statistical analyses have been specified.
    End point values
    Group 1: One dose of mOPV2 Group 2: Two doses of mOPV2
    Number of subjects analysed
    50
    50
    Units: participants
        Serious or Severe adverse event
    9
    13
        Serious adverse event
    0
    0
        Serious solicited adverse events
    0
    0
        Serious unsolicited adverse events
    0
    0
        Serious adverse events related to study vaccine
    0
    0
        Severe adverse advents
    9
    13
        Severe solicited adverse events
    2
    3
        Severe unsolicited adverse events
    7
    10
        Severe adverse events related to study vaccine
    4
    3
    No statistical analyses for this end point

    Primary: Seroprotection Rate after a single dose of mOPV2

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    End point title
    Seroprotection Rate after a single dose of mOPV2 [2]
    End point description
    Measure Description: Seroprotection rate was defined as the percentage of participants with anti-type 2-specific poliovirus neutralizing antibody titers ≥ 1:8. Neutralizing antibodies against poliovirus type 2 were determined using the World Health Organization (WHO) standard microneutralization assay (WHO EPI GEN 93.9). The lower limit of quantitation (LLOQ) was 5.7 and the upper limit of quantitation (ULOQ) was 1448. Analysis Population Description: Participants in the per-protocol population. The per-protocol population excluded participants with missed doses or major protocol deviations considered to have a potential impact on immunogenicity from the time of the deviation and at all time points thereafter. This endpoint was analyzed after one dose of mOPV hence Groups 1 and 2 are combined for analysis, as specified in the study protocol.
    End point type
    Primary
    End point timeframe
    Baseline (Day 0 prior to vaccination) and Day 28
    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: In this study all analyses are descriptive, therefore no statistical analyses have been specified
    End point values
    Group 1+2: mOPV2
    Number of subjects analysed
    100
    Units: percentage of participants
    number (confidence interval 95%)
        Day 0 (pre-vaccination)
    97 (92 to 99)
        Day 28
    98 (93 to 100)
    No statistical analyses for this end point

    Secondary: Number of participants With Solicited Adverse Events Within 7 Days of Vaccination with mOPV2

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    End point title
    Number of participants With Solicited Adverse Events Within 7 Days of Vaccination with mOPV2
    End point description
    Participants completed 7-day diary cards soliciting systemic adverse events and daily oral temperature. Solicited events comprised selected signs and symptoms including headache, fatigue, myalgia, arthralgia, paresthesia, anesthesia, paralysis, nausea, vomiting, diarrhea and abdominal pain, or fever defined as a temperature ≥37.0°C. AEs were graded as mild (easily tolerated with minimal discomfort or temp. 37.5°C to 38.0°C), moderate (sufficiently discomforting to interfere with normal everyday activities, or temp. 38.1°C to 39.0°C), or severe (preventing normal everyday activities, or temperatures > 39.0°C). AEs were assessed by the investigator for causality. Probably related suggests that a reasonable temporal sequence of the AE with vaccine administration exists and, in the Investigator’s clinical judgment, it is likely that a causal relationship exists between the vaccine administration and the AE. Analysis Population Description Participants in the total vaccinated population
    End point type
    Secondary
    End point timeframe
    Up to 7 days after each dose (Day 0-7 post-dose 1 and Day 28-35 post-dose 2)
    End point values
    Group 1+2: mOPV2 Post-dose 1 Group 2: mOPV2 Post-dose 2
    Number of subjects analysed
    100
    50
    Units: participants
        Any solicited adverse event
    62
    18
        Mild
    47
    10
        Moderate
    11
    7
        Severe
    4
    1
        Probably related to vaccination
    12
    2
    No statistical analyses for this end point

    Secondary: Number of Participants with Unsolicited adverse events

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    End point title
    Number of Participants with Unsolicited adverse events
    End point description
    Measure Description: Unsolicited events comprised other signs and symptoms that participants reported through the end of the study. Each unsolicited AE was rated on a 3-point scale of increasing intensity: • Grade 1: Mild; an AE that was easily tolerated by the subject, causing minimal discomfort and not interfering with everyday activities. • Grade 2: Moderate; an AE that was sufficiently discomforting to interfere with normal everyday activities. • Grade 3: Severe; an AE that prevented normal everyday activities. Each adverse event was assessed by the investigator for causality as unrelated, unlikely, possibly, or probably related to the vaccination. Analysis Population Description: Total vaccinated population
    End point type
    Secondary
    End point timeframe
    Up to 42 days after each vaccination
    End point values
    Group 1: One dose of mOPV2 Group 2: Two doses of mOPV2
    Number of subjects analysed
    50
    50
    Units: participants
        Any unsolicited adverse event
    34
    38
        Mild
    11
    16
        Moderate
    16
    12
        Severe
    7
    10
        Probably related to vaccination
    3
    2
    No statistical analyses for this end point

    Secondary: Number of participants with Clinically Relevant Laboratory Abnormalities Up to 28 days after Each Vaccination

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    End point title
    Number of participants with Clinically Relevant Laboratory Abnormalities Up to 28 days after Each Vaccination
    End point description
    Measure Description: Laboratory assessments were collected at one-week intervals from Day 0 , 7 and 28 for Groups 1 and 2 and at Days 35 and 56 for participants in Group 2 who received a 2nd dose. The Investigator reviewed laboratory values outside the normal range and assessed their clinical relevance. Any clinically relevant abnormal lab values that occurred at any visit up to 28 days after the first vaccination (in combined Groups 1 and 2) and up to 28 days (Day 56) after the second dose (Group 2) are reported. Analysis Population Description Participants in the total vaccinated population
    End point type
    Secondary
    End point timeframe
    Day 0, Day 7, and Day 28 for Groups 1and 2 and at Day 35 and Day 56 for participants in Group 2
    End point values
    Group 1+2: mOPV2 Post-dose 1 Group 2: Two doses of mOPV2
    Number of subjects analysed
    100
    50
    Units: participants
    21
    18
    No statistical analyses for this end point

    Secondary: Anti-Poliovirus Type-2 Neutralizing Antibody Titers After A Single Dose of mOPV2

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    End point title
    Anti-Poliovirus Type-2 Neutralizing Antibody Titers After A Single Dose of mOPV2
    End point description
    Measure Description: Neutralizing antibodies against poliovirus type 2 were determined using the World Health Organization (WHO) standard microneutralization assay (WHO EPI GEN 93.9). Data were calculated on log2-transformed type 2 neutralizing titers and back transformed for the presentation below. Analysis Population Description Per-protocol population. The per-protocol population excluded participants with missed doses or major protocol deviations considered to have a potential impact on immunogenicity from the time of the deviation and at all time points thereafter. This endpoint was analyzed after one dose of mOPV hence Groups 1 and 2 are combined for analysis, as specified in the study protocol.
    End point type
    Secondary
    End point timeframe
    Day 0 and Day 28
    End point values
    Group 1+2: mOPV2
    Number of subjects analysed
    100
    Units: titer
    median (inter-quartile range (Q1-Q3))
        Day 0 (pre-vaccination)
    228 (144 to 362)
        Day 28
    815 (324 to 1152)
    No statistical analyses for this end point

    Secondary: Seroprotection Rate 28 Days After Two Doses of mOPV2

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    End point title
    Seroprotection Rate 28 Days After Two Doses of mOPV2
    End point description
    Measure Description: Seroprotection rate was defined as the percentage of participants with anti-type 2-specific poliovirus neutralizing antibodies titers ≥ 1:8. Analysis Population Description Participants in the per-protocol population who received 2 doses of mOPV2 (Group 2).
    End point type
    Secondary
    End point timeframe
    Day 56
    End point values
    Group 2: Two doses of mOPV2
    Number of subjects analysed
    50
    Units: percentage of participants
        number (confidence interval 95%)
    98 (89 to 100)
    No statistical analyses for this end point

    Secondary: Seroconversion Rate After a Single Dose of mOPV2

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    End point title
    Seroconversion Rate After a Single Dose of mOPV2
    End point description
    Measure Description: Seroconversion is defined as a change from seronegative to seropositive (poliovirus type-2-specific neutralizing antibody titers ≥ 1:8), or for participants seropositive at Baseline, an antibody titer increase of ≥ 4-fold over Baseline titer. Analysis Population Description Participants in the seroconversion subset of the per-protocol population. The seroconversion subset included participants with Baseline titer sufficiently low to enable observation of a four-fold increase without breaching the ULOQ. Since this endpoint was analyzed after 1 dose of mOPV, Groups 1 and 2 are combined for analysis.
    End point type
    Secondary
    End point timeframe
    Day 28
    End point values
    Group 1+2: mOPV2
    Number of subjects analysed
    62
    Units: percentage of participants
        number (confidence interval 95%)
    29 (18 to 42)
    No statistical analyses for this end point

    Secondary: Seroconversion Rate After Two Doses of mOPV2

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    End point title
    Seroconversion Rate After Two Doses of mOPV2
    End point description
    Measure description: Seroconversion is defined as a change from seronegative to seropositive (poliovirus type-2-specific neutralizing antibody titers ≥ 1:8), or for participants seropositive at Baseline, an antibody titer increase of ≥ 4-fold over Baseline titer. Analysis Population Description: Participants in the seroconversion subset of the per-protocol population previously vaccinated with OPV and who received 2 doses of mOPV2 (Group 2). The seroconversion subset included participants with Baseline titer sufficiently low to enable observation of a four-fold increase without breaching the ULOQ.
    End point type
    Secondary
    End point timeframe
    Day 56
    End point values
    Group 2: Two doses of mOPV2
    Number of subjects analysed
    29
    Units: percentage of participants
        number (confidence interval 95%)
    38 (21 to 58)
    No statistical analyses for this end point

    Adverse events

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    Adverse events information
    Timeframe for reporting adverse events
    Up to 42 days after each vaccination (42 days in Group 1 and 70 days for Group 2).
    Adverse event reporting additional description
    unsolicited adverse events
    Assessment type
    Systematic
    Dictionary used for adverse event reporting
    Dictionary name
    MedDRA
    Dictionary version
    22.0
    Reporting groups
    Reporting group title
    Group 1: One dose of mOPV2
    Reporting group description
    Participants received one dose of monovalent oral polio vaccine type 2 (mOPV2) on study day 0, administered orally as 2 drops (0.1 mL total; approximately 10# 50% cell culture infectious dose units (CCID50)).

    Reporting group title
    Group 2: Two doses of mOPV2
    Reporting group description
    Participants received two doses of mOPV2 28 days apart (Day0 and Day 28), administered orally as 2 drops (0.1 mL total; approximately 10# CCID50)

    Serious adverse events
    Group 1: One dose of mOPV2 Group 2: Two doses of mOPV2
    Total subjects affected by serious adverse events
         subjects affected / exposed
    0 / 50 (0.00%)
    0 / 50 (0.00%)
         number of deaths (all causes)
    0
    0
         number of deaths resulting from adverse events
    0
    0
    Frequency threshold for reporting non-serious adverse events: 0%
    Non-serious adverse events
    Group 1: One dose of mOPV2 Group 2: Two doses of mOPV2
    Total subjects affected by non serious adverse events
         subjects affected / exposed
    42 / 50 (84.00%)
    44 / 50 (88.00%)
    Vascular disorders
    Haematoma
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    1
    General disorders and administration site conditions
    Chest pain
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    2
    Fatigue
         subjects affected / exposed
    2 / 50 (4.00%)
    2 / 50 (4.00%)
         occurrences all number
    2
    2
    Hangover
         subjects affected / exposed
    1 / 50 (2.00%)
    0 / 50 (0.00%)
         occurrences all number
    1
    0
    Pyrexia
         subjects affected / exposed
    3 / 50 (6.00%)
    0 / 50 (0.00%)
         occurrences all number
    3
    0
    Facial pain
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    1
    Reproductive system and breast disorders
    Dysmenorrhoea
         subjects affected / exposed
    1 / 50 (2.00%)
    2 / 50 (4.00%)
         occurrences all number
    2
    2
    Respiratory, thoracic and mediastinal disorders
    Oropharyngeal pain
         subjects affected / exposed
    4 / 50 (8.00%)
    5 / 50 (10.00%)
         occurrences all number
    5
    5
    Cough
         subjects affected / exposed
    0 / 50 (0.00%)
    3 / 50 (6.00%)
         occurrences all number
    0
    3
    Dyspnoea
         subjects affected / exposed
    1 / 50 (2.00%)
    0 / 50 (0.00%)
         occurrences all number
    1
    0
    Increased upper airway secretion
         subjects affected / exposed
    1 / 50 (2.00%)
    0 / 50 (0.00%)
         occurrences all number
    1
    0
    Psychiatric disorders
    Emotional distress
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    1
    Insomnia
         subjects affected / exposed
    1 / 50 (2.00%)
    0 / 50 (0.00%)
         occurrences all number
    1
    0
    Panic attack
         subjects affected / exposed
    1 / 50 (2.00%)
    0 / 50 (0.00%)
         occurrences all number
    1
    0
    Investigations
    Alanine aminotransferase increased
         subjects affected / exposed
    1 / 50 (2.00%)
    1 / 50 (2.00%)
         occurrences all number
    1
    1
    Aspartate aminotransferase increased
         subjects affected / exposed
    0 / 50 (0.00%)
    2 / 50 (4.00%)
         occurrences all number
    0
    2
    C-reactive protein increased
         subjects affected / exposed
    2 / 50 (4.00%)
    2 / 50 (4.00%)
         occurrences all number
    2
    2
    Injury, poisoning and procedural complications
    Skin abrasion
         subjects affected / exposed
    1 / 50 (2.00%)
    1 / 50 (2.00%)
         occurrences all number
    1
    1
    Jaw fracture
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    1
    Tooth fracture
         subjects affected / exposed
    1 / 50 (2.00%)
    0 / 50 (0.00%)
         occurrences all number
    2
    0
    Cardiac disorders
    Palpitations
         subjects affected / exposed
    1 / 50 (2.00%)
    0 / 50 (0.00%)
         occurrences all number
    1
    0
    Nervous system disorders
    Headache
         subjects affected / exposed
    8 / 50 (16.00%)
    12 / 50 (24.00%)
         occurrences all number
    9
    25
    Dizziness
         subjects affected / exposed
    1 / 50 (2.00%)
    0 / 50 (0.00%)
         occurrences all number
    1
    0
    Tremor
         subjects affected / exposed
    1 / 50 (2.00%)
    0 / 50 (0.00%)
         occurrences all number
    1
    0
    Ear and labyrinth disorders
    Ear pain
         subjects affected / exposed
    1 / 50 (2.00%)
    1 / 50 (2.00%)
         occurrences all number
    1
    1
    Eye disorders
    Blepharitis
         subjects affected / exposed
    1 / 50 (2.00%)
    0 / 50 (0.00%)
         occurrences all number
    1
    0
    Conjunctival irritation
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    1
    Gastrointestinal disorders
    Abdominal Pain
         subjects affected / exposed
    2 / 50 (4.00%)
    1 / 50 (2.00%)
         occurrences all number
    2
    5
    Abdominal pain upper
         subjects affected / exposed
    1 / 50 (2.00%)
    0 / 50 (0.00%)
         occurrences all number
    1
    0
    Aphthous ulcer
         subjects affected / exposed
    1 / 50 (2.00%)
    0 / 50 (0.00%)
         occurrences all number
    1
    0
    Constipation
         subjects affected / exposed
    1 / 50 (2.00%)
    3 / 50 (6.00%)
         occurrences all number
    1
    4
    Dental caries
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    1
    Diarrhoea
         subjects affected / exposed
    4 / 50 (8.00%)
    4 / 50 (8.00%)
         occurrences all number
    8
    4
    Gastrointestinal sounds abnormal
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    2
    Nausea
         subjects affected / exposed
    3 / 50 (6.00%)
    1 / 50 (2.00%)
         occurrences all number
    3
    1
    Toothache
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    1
    Gastrointestinal hypermotility
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    1
    Oral pain
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    1
    paresthesia oral
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    1
    Salivary gland pain
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    1
    Skin and subcutaneous tissue disorders
    Acne
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    1
    Ecchymosis
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    1
    Skin irritation
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    2
    Skin lesion
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    2
    Musculoskeletal and connective tissue disorders
    Back pain
         subjects affected / exposed
    1 / 50 (2.00%)
    3 / 50 (6.00%)
         occurrences all number
    1
    3
    Myalgia
         subjects affected / exposed
    2 / 50 (4.00%)
    1 / 50 (2.00%)
         occurrences all number
    2
    1
    Arthralgia
         subjects affected / exposed
    0 / 50 (0.00%)
    2 / 50 (4.00%)
         occurrences all number
    0
    2
    Neck pain
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    1
    Muscle spasms
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    1
    Pain in extremity
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    1
    Infections and infestations
    Ear infection
         subjects affected / exposed
    1 / 50 (2.00%)
    0 / 50 (0.00%)
         occurrences all number
    1
    0
    Gastroenteritis
         subjects affected / exposed
    2 / 50 (4.00%)
    3 / 50 (6.00%)
         occurrences all number
    2
    3
    Influenza
         subjects affected / exposed
    1 / 50 (2.00%)
    2 / 50 (4.00%)
         occurrences all number
    1
    2
    Nasopharyngitis
         subjects affected / exposed
    8 / 50 (16.00%)
    13 / 50 (26.00%)
         occurrences all number
    9
    17
    Oral herpes
         subjects affected / exposed
    0 / 50 (0.00%)
    2 / 50 (4.00%)
         occurrences all number
    0
    2
    Pharyngitis
         subjects affected / exposed
    2 / 50 (4.00%)
    0 / 50 (0.00%)
         occurrences all number
    2
    0
    Rhinitis
         subjects affected / exposed
    0 / 50 (0.00%)
    3 / 50 (6.00%)
         occurrences all number
    0
    3
    Upper respiratory tract infection
         subjects affected / exposed
    1 / 50 (2.00%)
    0 / 50 (0.00%)
         occurrences all number
    1
    0
    Laryngitis
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    1
    Tonsillitis
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    1
    Tooth abscess
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    1
    Viral diarrhoea
         subjects affected / exposed
    1 / 50 (2.00%)
    0 / 50 (0.00%)
         occurrences all number
    1
    0
    Chlamydial infection
         subjects affected / exposed
    1 / 50 (2.00%)
    0 / 50 (0.00%)
         occurrences all number
    1
    0
    Folliculitis
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    1
    Thermal burn
         subjects affected / exposed
    0 / 50 (0.00%)
    1 / 50 (2.00%)
         occurrences all number
    0
    1

    More information

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    Substantial protocol amendments (globally)

    Were there any global substantial amendments to the protocol? Yes
    Date
    Amendment
    30 Oct 2015
    •Sponsor representative has been changed: name and address has been replaced on Signature page, Synopsis and Study administrative structure •Coordinating investigator and clinical lab has been added to the Study administrative structure. •Important medical events (IMEs) although not fulfilling the regulatory definition of a serious adverse event (SAE), will be considered serious and be processed like SAEs. Accordingly the determinations of safety objectives and endpoints have been adapted in synopsis and section 2 and 3. •Secondary endpoints of immunogenicity: Median titers and seroconversion rate of type-specific polio antibodies at day 28 will be described for both groups combined. •Exploratory objectives and endpoints: ‘in a subset of stool samples’ has been added to the descriptive analysis of viral shedding and assessment of the genetic sequence heterogeneity and potential for neurovirulence. Synopsis and section 2 •Statistical methods: ‘Cumulative rates of seroconversion and seroprotection will be tabulated’ has been deleted in synopsis and section 10.2 •Information about the Data Safety Monitoring board has been added in Synopsis, section 4.1 and 11.10. •Time and events schedule : Remote daily contact during 14 days after each vaccination has been changed to 10 days after each vaccination . Phone call has been deleted and whatsapp and email has been added. Group 2: an additional stool sampling has been added at days V4 -1 or 2 days and V7 – 1 or 2 days to ensure stool sampling close before next vaccine dose. Group 1: stool sample day 28replaced by stool sample on V4 -1 or 2 day and for Group 2: time points for stool sampling have been reformulated to make it more clear. Section 6.5: adapted to use of randomization envelopes Grading of fever, possible outcomes 'recovering' and 'not recovered', description of solicited AEs and hCG testing on Day 0 and Day 28 have been added definition of intention to treat population added
    01 Jan 2016
    • Synopsis + page 36: Inclusion criterium 2 has been changed because in Belgium it is difficult to objectify 4 OPV doses for this age category (18-50y) and to be in accordance with the similar studies for children and infants in Lithuania and Latin-America. • Study Administrative Structure: As the project manager has been changed, the name of the new project manager has been added on page 28.

    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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