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Safety and Immunogenicity of a Booster Dose of GSK Biological's Boostrix-Polio Vaccine

Evaluation of GSK Biological's dTpa-IPV Booster Vaccine in Children and Adolescents, 5 Years After Previous dTpa-IPV Boosting.

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00635128
Enrollment
415
Registered
2008-03-13
Start date
2008-02-01
Completion date
2008-07-08
Last updated
2018-06-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acellular Pertussis, Diphtheria, Poliomyelitis, Tetanus

Keywords

Diphtheria, vaccine, DTP, Poliomyelitis, Pertussis, Booster, Tetanus

Brief summary

Subjects aged 9 to 13 years who participated in the 711866/001 study 5 years ago will be evaluated for immune persistence and will receive a combined dTpa-IPV booster dose that will be evaluated in terms of immunogenicity, safety and reactogenicity.

Interventions

BIOLOGICALBoostrix-Polio

A single booster dose of dTpa-IPV vaccine will be administered to all subjects. IM administration in the deltoid muscle of the non-dominant arm.

Sponsors

GlaxoSmithKline
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
9 Years to 13 Years
Healthy volunteers
Yes

Inclusion criteria

* Subjects who the investigator believes that they or their parents/guardians can and will comply with the requirements of the protocol should be enrolled in the study. * A male or female subject who received a booster vaccination with dTpa-IPV or dTpa + IPV in study 711866/001. * Healthy subjects as established by medical history and clinical examination before entering into the study. * Females of childbearing potential at the time of study entry must have a negative pregnancy test prior to administration of the dose of vaccine and are required to be abstinent or to use adequate contraceptive precautions for one month prior to vaccination. Subjects are required to agree to continue such precautions for two months after vaccination. * Written informed consent obtained from both parents/ guardians of the subject; assent from the subject himself/herself should also be requested whenever possible.

Exclusion criteria

* Use of any investigational or non-registered product (drug or vaccine) other than the study vaccine(s) within 30 days preceding the booster dose of study vaccine, or planned use during the study period. * Chronic administration (defined as more than 14 days) of immunosuppressant or other immune-modifying drugs within six months prior to the booster dose. * Administration of a vaccine not foreseen by the study protocol within 30 days prior to vaccination, or planned administration during study period. * Concurrently participating in another clinical study, at any time during the study period, in which the subject has been or will be exposed to an investigational or a non-investigational product. * Previous booster vaccination against tetanus, diphtheria, pertussis, or poliomyelitis since the booster dose received in study 711866/001. * History of diphtheria, tetanus, pertussis, or poliomyelitis diseases. * Any confirmed or suspected immunosuppressive or immunodeficiency condition, based on medical history and physical examination. * History of allergic disease or reactions likely to be exacerbated by any component of the vaccine. * Administration of immunoglobulin and/or any blood products within the three months preceding the booster dose or planned administration during the study period. * Occurrence of transient thrombocytopenia or neurological complications following an earlier immunisation against diphtheria and/or tetanus. * Occurrence of any of the following adverse events (AEs) after a previous administration of a DTP vaccine: hypersensitivity reaction to any component of the vaccine, encephalopathy of unknown aetiology occurring within 7 days following previous vaccination with pertussis-containing vaccine, fever ≥ 40°C within 48 hours of vaccination not due to another identifiable cause, collapse or shock-like state within 48 hours of vaccination * Persistent, severe, inconsolable screaming or crying lasting \>3 hours occurring within 48 hours of receipt of a previous dose of DTP vaccine convulsions with or without fever, occurring within 3 days of vaccination. * Acute disease at the time of enrolment. * Pregnant or lactating female.

Design outcomes

Primary

MeasureTime frameDescription
Number of Subjects With Any Grade 3 Solicited Local SymptomsDuring the 4-day (Days 0-3) follow-up period after booster vaccinationAssessed solicited local symptoms were pain, redness and swelling. Grade 3 Pain: Pain that prevented normal activity. Grade 3 redness/swelling = redness/swelling spreading beyond 50 millimeters (mm) of injection site.

Secondary

MeasureTime frameDescription
Number of Subjects With Any Solicited Local SymptomsDuring the 4-day (Days 0-3) follow-up period after booster vaccinationAssessed solicited local symptoms were pain, redness and swelling. Any = occurrence of the symptom regardless of intensity grade.
Number of Subjects With Any Solicited General SymptomsDuring the 4-day (Days 0-3) follow-up period after booster vaccinationAssessed solicited general symptoms were fatigue, gastrointestinal, headache and temperature \[defined as axillary temperature equal to or above 37.5 degrees Celsius (°C)\]. Any = occurrence of the symptom regardless of intensity grade and relationship to vaccination.
Number of Subjects With Anti-diphtheria (Anti-D) and Anti-tetanus (Anti-T) ToxoidsPrior to (Month 0) and one month after (Month 1) booster vaccinationAnti-D and anti-T antibody concnetration greater than or equal to (≥) 0.1 international units per milliliter (IU/mL) and ≥ 1 IU/mL have been assessed by enzyme-linked immunosorbent assay (ELISA). Pre-vaccination sera with ELISA concentrations \< 0.1 IU/mL were tested for neutralising antibodies using a Vero-cell neutralisation assay with a 0.016 IU/mL cut-off.
Anti-D and Anti-T Antibody ConcentrationsPrior to (Month 0) and one month after (Month 1) booster vaccinationAntibody concentrations were presented as geometric mean concentrations (GMCs), expressed in international units per milliliter (IU/mL).
Number of Seropositive Subjects for Anti-pertussis Toxoid (Anti-PT), Anti-filamentous Haemagglutinin (Anti-FHA) and Anti-pertactin (Anti-PRN)Prior to (Month 0) and one month after (Month 1) booster vaccinationA seropositive subject was defined as a subject with anti-PT, anti-FHA and anti-PRN antibody concentrations ≥ 5 ELISA unit per milliliter (EL.U/ml).
Anti-Polio 1, 2 and 3 Antibody TitersPrior to (Month 0) and one month after (Month 1) booster vaccinationAntibody titers were presented as geometric mean titers (GMTs).
Number of Seroprotected Subjects Against Polio Type 1, 2 and 3 AntigensPrior to (Month 0) and one month after (Month 1) booster vaccinationA seroprotected subject was defined as a subject with anti-Polio type 1, 2 and 3 antibody titers ≥ the value of 8.
Number of Subjects With Booster Response to Anti-PT, Anti-FHA and Anti-PRNOne month after booster vaccination (At Month 1)Booster vaccine response was defined as appearance of antibodies in subjects who were seronegative at the pre-vaccination time point (i.e. with concentrations \< 5 EL.U/mL) or at least 2-fold increase of pre-vaccination antibody concentrations in subjects who were seropositive at the pre-vaccination time point (i.e. with concentrations \< 5 EL.U/mL).
Number of Subjects With Unsolicited Adverse Events (AEs)During the 31-day (Days 0-30) follow-up period after booster vaccinationAEs results are presented for all subjects. An unsolicited AE covers any untoward medical occurrence in a clinical investigation subject temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product and reported in addition to those solicited during the clinical study and any solicited symptom with onset outside the specified period of follow-up for solicited symptoms. Any was defined as the occurrence of any unsolicited AE regardless of intensity grade or relation to vaccination.
Number of Subjects With Serious Adverse Events (SAEs)During the entire booster period (Month 0 to Month 1)Assessed SAEs include medical occurrences that result in death, are life-threatening, require hospitalization or prolongation of hospitalization or result in disability/incapacity.
Anti-PT, Anti-FHA and Anti-PRN Antibody ConcentrationsPrior to (Month 0) and one month after (Month 1) booster vaccinationAntibodies concentrations were presented as geometric mean concentrations (GMCs), expressed in EL.U/mL.

Countries

Germany

Participant flow

Pre-assignment details

During the screening the following steps occurred: check for inclusion/exclusion criteria, contraindications/precautions, medical history of the subjects and signing informed consent forms.

Participants by arm

ArmCount
Boostrix-Polio Group
Healthy male or female subjects aged 9 to 13 years, who were given a single booster dose of Boostrix-Polio vaccine in the dTpa-IPV-001 (711866/001) study, additionally received a single booster dose of the Boostrix-Polio vaccine, administered intramuscularly in the deltoid region of the non-dominant arm.
351
Boostrix + IPV Mérieux Group
Healthy male or female subjects aged 9 to 13 years, who were given a single booster dose of Boostrix and IPV Mérieux® vaccines in the dTpa-IPV-001 (711866/001) study, additionally received a single booster dose of the Boostrix-Polio vaccine, administered intramuscularly in the deltoid region of the non-dominant arm.
64
Total415

Baseline characteristics

CharacteristicBoostrix-Polio GroupBoostrix + IPV Mérieux GroupTotal
Age, Continuous11.4 Years
STANDARD_DEVIATION 0.97
11.3 Years
STANDARD_DEVIATION 0.72
11.38 Years
STANDARD_DEVIATION 0.94
Race/Ethnicity, Customized
Not specified
0 Participants1 Participants1 Participants
Race/Ethnicity, Customized
White-Arabic/North African heritage
4 Participants0 Participants4 Participants
Race/Ethnicity, Customized
White-Caucasian/European heritage
347 Participants63 Participants410 Participants
Sex: Female, Male
Female
169 Participants32 Participants201 Participants
Sex: Female, Male
Male
182 Participants32 Participants214 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 3510 / 64
other
Total, other adverse events
281 / 35151 / 64
serious
Total, serious adverse events
0 / 3510 / 64

Outcome results

Primary

Number of Subjects With Any Grade 3 Solicited Local Symptoms

Assessed solicited local symptoms were pain, redness and swelling. Grade 3 Pain: Pain that prevented normal activity. Grade 3 redness/swelling = redness/swelling spreading beyond 50 millimeters (mm) of injection site.

Time frame: During the 4-day (Days 0-3) follow-up period after booster vaccination

Population: The analysis was performed on the Total Vaccinated Cohort, which included all vaccinated subjects for whom data were available.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Boostrix-Polio GroupNumber of Subjects With Any Grade 3 Solicited Local SymptomsGrade 3 Pain14 Participants
Boostrix-Polio GroupNumber of Subjects With Any Grade 3 Solicited Local SymptomsGrade 3 Redness (mm)14 Participants
Boostrix-Polio GroupNumber of Subjects With Any Grade 3 Solicited Local SymptomsGrade 3 Swelling (mm)10 Participants
Boostrix + IPV Mérieux GroupNumber of Subjects With Any Grade 3 Solicited Local SymptomsGrade 3 Pain3 Participants
Boostrix + IPV Mérieux GroupNumber of Subjects With Any Grade 3 Solicited Local SymptomsGrade 3 Redness (mm)5 Participants
Boostrix + IPV Mérieux GroupNumber of Subjects With Any Grade 3 Solicited Local SymptomsGrade 3 Swelling (mm)5 Participants
Secondary

Anti-D and Anti-T Antibody Concentrations

Antibody concentrations were presented as geometric mean concentrations (GMCs), expressed in international units per milliliter (IU/mL).

Time frame: Prior to (Month 0) and one month after (Month 1) booster vaccination

Population: The analysis was performed on the According-to-Protocol (ATP) cohort for immunogenicity, which included all evaluable subjects vaccinated with a booster dose of Boostrix™-Polio vaccine in this current study (110947), for whom immunogenicity data and assay results for antibodies against at least one study vaccine antigen component were available.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Boostrix-Polio GroupAnti-D and Anti-T Antibody ConcentrationsAnti-D, M00.51 IU/mL
Boostrix-Polio GroupAnti-D and Anti-T Antibody ConcentrationsAnti-D, M14.784 IU/mL
Boostrix-Polio GroupAnti-D and Anti-T Antibody ConcentrationsAnti-T, M01.197 IU/mL
Boostrix-Polio GroupAnti-D and Anti-T Antibody ConcentrationsAnti-T, M111.81 IU/mL
Boostrix + IPV Mérieux GroupAnti-D and Anti-T Antibody ConcentrationsAnti-T, M19.518 IU/mL
Boostrix + IPV Mérieux GroupAnti-D and Anti-T Antibody ConcentrationsAnti-D, M00.446 IU/mL
Boostrix + IPV Mérieux GroupAnti-D and Anti-T Antibody ConcentrationsAnti-T, M01.067 IU/mL
Boostrix + IPV Mérieux GroupAnti-D and Anti-T Antibody ConcentrationsAnti-D, M14.153 IU/mL
Secondary

Anti-Polio 1, 2 and 3 Antibody Titers

Antibody titers were presented as geometric mean titers (GMTs).

Time frame: Prior to (Month 0) and one month after (Month 1) booster vaccination

Population: The analysis was performed on the According-to-Protocol (ATP) cohort for immunogenicity, which included all evaluable subjects vaccinated with a booster dose of Boostrix™-Polio vaccine in this current study (110947), for whom immunogenicity data and assay results for antibodies against at least one study vaccine antigen component were available.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Boostrix-Polio GroupAnti-Polio 1, 2 and 3 Antibody TitersAnti-polio 1, M0138.7 Titers
Boostrix-Polio GroupAnti-Polio 1, 2 and 3 Antibody TitersAnti-polio 1, M11359.6 Titers
Boostrix-Polio GroupAnti-Polio 1, 2 and 3 Antibody TitersAnti-polio 2, M0166.3 Titers
Boostrix-Polio GroupAnti-Polio 1, 2 and 3 Antibody TitersAnti-polio 2, M11629.4 Titers
Boostrix-Polio GroupAnti-Polio 1, 2 and 3 Antibody TitersAnti-polio 3, M0117.2 Titers
Boostrix-Polio GroupAnti-Polio 1, 2 and 3 Antibody TitersAnti-polio 3, M11882.4 Titers
Boostrix + IPV Mérieux GroupAnti-Polio 1, 2 and 3 Antibody TitersAnti-polio 3, M0118.4 Titers
Boostrix + IPV Mérieux GroupAnti-Polio 1, 2 and 3 Antibody TitersAnti-polio 1, M0128.9 Titers
Boostrix + IPV Mérieux GroupAnti-Polio 1, 2 and 3 Antibody TitersAnti-polio 2, M11309.5 Titers
Boostrix + IPV Mérieux GroupAnti-Polio 1, 2 and 3 Antibody TitersAnti-polio 1, M11088.9 Titers
Boostrix + IPV Mérieux GroupAnti-Polio 1, 2 and 3 Antibody TitersAnti-polio 3, M11712.5 Titers
Boostrix + IPV Mérieux GroupAnti-Polio 1, 2 and 3 Antibody TitersAnti-polio 2, M0179.2 Titers
Secondary

Anti-PT, Anti-FHA and Anti-PRN Antibody Concentrations

Antibodies concentrations were presented as geometric mean concentrations (GMCs), expressed in EL.U/mL.

Time frame: Prior to (Month 0) and one month after (Month 1) booster vaccination

Population: The analysis was performed on the According-to-Protocol (ATP) cohort for immunogenicity, which included all evaluable subjects vaccinated with a booster dose of Boostrix™-Polio vaccine in this current study (110947), for whom immunogenicity data and assay results for antibodies against at least one study vaccine antigen component were available.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Boostrix-Polio GroupAnti-PT, Anti-FHA and Anti-PRN Antibody ConcentrationsAnti-PT, M05.2 EL.U/mL
Boostrix-Polio GroupAnti-PT, Anti-FHA and Anti-PRN Antibody ConcentrationsAnti-PT, M141.6 EL.U/mL
Boostrix-Polio GroupAnti-PT, Anti-FHA and Anti-PRN Antibody ConcentrationsAnti-FHA, M069.8 EL.U/mL
Boostrix-Polio GroupAnti-PT, Anti-FHA and Anti-PRN Antibody ConcentrationsAnti-FHA, M1662.7 EL.U/mL
Boostrix-Polio GroupAnti-PT, Anti-FHA and Anti-PRN Antibody ConcentrationsAnti-PRN, M046.8 EL.U/mL
Boostrix-Polio GroupAnti-PT, Anti-FHA and Anti-PRN Antibody ConcentrationsAnti-PRN, M1570.8 EL.U/mL
Boostrix + IPV Mérieux GroupAnti-PT, Anti-FHA and Anti-PRN Antibody ConcentrationsAnti-PRN, M041.1 EL.U/mL
Boostrix + IPV Mérieux GroupAnti-PT, Anti-FHA and Anti-PRN Antibody ConcentrationsAnti-PT, M04.5 EL.U/mL
Boostrix + IPV Mérieux GroupAnti-PT, Anti-FHA and Anti-PRN Antibody ConcentrationsAnti-FHA, M1733.9 EL.U/mL
Boostrix + IPV Mérieux GroupAnti-PT, Anti-FHA and Anti-PRN Antibody ConcentrationsAnti-PT, M132 EL.U/mL
Boostrix + IPV Mérieux GroupAnti-PT, Anti-FHA and Anti-PRN Antibody ConcentrationsAnti-PRN, M1460.4 EL.U/mL
Boostrix + IPV Mérieux GroupAnti-PT, Anti-FHA and Anti-PRN Antibody ConcentrationsAnti-FHA, M070.1 EL.U/mL
Secondary

Number of Seropositive Subjects for Anti-pertussis Toxoid (Anti-PT), Anti-filamentous Haemagglutinin (Anti-FHA) and Anti-pertactin (Anti-PRN)

A seropositive subject was defined as a subject with anti-PT, anti-FHA and anti-PRN antibody concentrations ≥ 5 ELISA unit per milliliter (EL.U/ml).

Time frame: Prior to (Month 0) and one month after (Month 1) booster vaccination

Population: The analysis was performed on the According-to-Protocol (ATP) cohort for immunogenicity, which included all evaluable subjects vaccinated with a booster dose of Boostrix™-Polio vaccine in this current study (110947), for whom immunogenicity data and assay results for antibodies against at least one study vaccine antigen component were available.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Boostrix-Polio GroupNumber of Seropositive Subjects for Anti-pertussis Toxoid (Anti-PT), Anti-filamentous Haemagglutinin (Anti-FHA) and Anti-pertactin (Anti-PRN)Anti-PT, M0134 Participants
Boostrix-Polio GroupNumber of Seropositive Subjects for Anti-pertussis Toxoid (Anti-PT), Anti-filamentous Haemagglutinin (Anti-FHA) and Anti-pertactin (Anti-PRN)Anti-PT, M1334 Participants
Boostrix-Polio GroupNumber of Seropositive Subjects for Anti-pertussis Toxoid (Anti-PT), Anti-filamentous Haemagglutinin (Anti-FHA) and Anti-pertactin (Anti-PRN)Anti-FHA, M0332 Participants
Boostrix-Polio GroupNumber of Seropositive Subjects for Anti-pertussis Toxoid (Anti-PT), Anti-filamentous Haemagglutinin (Anti-FHA) and Anti-pertactin (Anti-PRN)Anti-FHA, M1336 Participants
Boostrix-Polio GroupNumber of Seropositive Subjects for Anti-pertussis Toxoid (Anti-PT), Anti-filamentous Haemagglutinin (Anti-FHA) and Anti-pertactin (Anti-PRN)Anti-PRN, M0325 Participants
Boostrix-Polio GroupNumber of Seropositive Subjects for Anti-pertussis Toxoid (Anti-PT), Anti-filamentous Haemagglutinin (Anti-FHA) and Anti-pertactin (Anti-PRN)Anti-PRN, M1336 Participants
Boostrix + IPV Mérieux GroupNumber of Seropositive Subjects for Anti-pertussis Toxoid (Anti-PT), Anti-filamentous Haemagglutinin (Anti-FHA) and Anti-pertactin (Anti-PRN)Anti-PRN, M057 Participants
Boostrix + IPV Mérieux GroupNumber of Seropositive Subjects for Anti-pertussis Toxoid (Anti-PT), Anti-filamentous Haemagglutinin (Anti-FHA) and Anti-pertactin (Anti-PRN)Anti-PT, M021 Participants
Boostrix + IPV Mérieux GroupNumber of Seropositive Subjects for Anti-pertussis Toxoid (Anti-PT), Anti-filamentous Haemagglutinin (Anti-FHA) and Anti-pertactin (Anti-PRN)Anti-FHA, M161 Participants
Boostrix + IPV Mérieux GroupNumber of Seropositive Subjects for Anti-pertussis Toxoid (Anti-PT), Anti-filamentous Haemagglutinin (Anti-FHA) and Anti-pertactin (Anti-PRN)Anti-PT, M159 Participants
Boostrix + IPV Mérieux GroupNumber of Seropositive Subjects for Anti-pertussis Toxoid (Anti-PT), Anti-filamentous Haemagglutinin (Anti-FHA) and Anti-pertactin (Anti-PRN)Anti-PRN, M162 Participants
Boostrix + IPV Mérieux GroupNumber of Seropositive Subjects for Anti-pertussis Toxoid (Anti-PT), Anti-filamentous Haemagglutinin (Anti-FHA) and Anti-pertactin (Anti-PRN)Anti-FHA, M060 Participants
Secondary

Number of Seroprotected Subjects Against Polio Type 1, 2 and 3 Antigens

A seroprotected subject was defined as a subject with anti-Polio type 1, 2 and 3 antibody titers ≥ the value of 8.

Time frame: Prior to (Month 0) and one month after (Month 1) booster vaccination

Population: The analysis was performed on the According-to-Protocol (ATP) cohort for immunogenicity, which included all evaluable subjects vaccinated with a booster dose of Boostrix™-Polio vaccine in this current study (110947), for whom immunogenicity data and assay results for antibodies against at least one study vaccine antigen component were available.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Boostrix-Polio GroupNumber of Seroprotected Subjects Against Polio Type 1, 2 and 3 AntigensAnti-polio 1, M0329 Participants
Boostrix-Polio GroupNumber of Seroprotected Subjects Against Polio Type 1, 2 and 3 AntigensAnti-polio 1, M1335 Participants
Boostrix-Polio GroupNumber of Seroprotected Subjects Against Polio Type 1, 2 and 3 AntigensAnti-polio 2, M0333 Participants
Boostrix-Polio GroupNumber of Seroprotected Subjects Against Polio Type 1, 2 and 3 AntigensAnti-polio 2, M1335 Participants
Boostrix-Polio GroupNumber of Seroprotected Subjects Against Polio Type 1, 2 and 3 AntigensAnti-polio 3, M0324 Participants
Boostrix-Polio GroupNumber of Seroprotected Subjects Against Polio Type 1, 2 and 3 AntigensAnti-polio 3, M1333 Participants
Boostrix + IPV Mérieux GroupNumber of Seroprotected Subjects Against Polio Type 1, 2 and 3 AntigensAnti-polio 3, M060 Participants
Boostrix + IPV Mérieux GroupNumber of Seroprotected Subjects Against Polio Type 1, 2 and 3 AntigensAnti-polio 1, M060 Participants
Boostrix + IPV Mérieux GroupNumber of Seroprotected Subjects Against Polio Type 1, 2 and 3 AntigensAnti-polio 2, M162 Participants
Boostrix + IPV Mérieux GroupNumber of Seroprotected Subjects Against Polio Type 1, 2 and 3 AntigensAnti-polio 1, M162 Participants
Boostrix + IPV Mérieux GroupNumber of Seroprotected Subjects Against Polio Type 1, 2 and 3 AntigensAnti-polio 3, M162 Participants
Boostrix + IPV Mérieux GroupNumber of Seroprotected Subjects Against Polio Type 1, 2 and 3 AntigensAnti-polio 2, M062 Participants
Secondary

Number of Subjects With Anti-diphtheria (Anti-D) and Anti-tetanus (Anti-T) Toxoids

Anti-D and anti-T antibody concnetration greater than or equal to (≥) 0.1 international units per milliliter (IU/mL) and ≥ 1 IU/mL have been assessed by enzyme-linked immunosorbent assay (ELISA). Pre-vaccination sera with ELISA concentrations \< 0.1 IU/mL were tested for neutralising antibodies using a Vero-cell neutralisation assay with a 0.016 IU/mL cut-off.

Time frame: Prior to (Month 0) and one month after (Month 1) booster vaccination

Population: The analysis was performed on the According-to-Protocol (ATP) cohort for immunogenicity, which included all evaluable subjects vaccinated with a booster dose of Boostrix™-Polio vaccine in this current study (110947), for whom immunogenicity data and assay results for antibodies against at least one study vaccine antigen component were available.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Boostrix-Polio GroupNumber of Subjects With Anti-diphtheria (Anti-D) and Anti-tetanus (Anti-T) ToxoidsAnti-D ≥ 0.1 IU/mL, M0298 Participants
Boostrix-Polio GroupNumber of Subjects With Anti-diphtheria (Anti-D) and Anti-tetanus (Anti-T) ToxoidsAnti-D ≥ 0.1 IU/mL, M1336 Participants
Boostrix-Polio GroupNumber of Subjects With Anti-diphtheria (Anti-D) and Anti-tetanus (Anti-T) ToxoidsAnti-D ≥ 1 IU/mL, M091 Participants
Boostrix-Polio GroupNumber of Subjects With Anti-diphtheria (Anti-D) and Anti-tetanus (Anti-T) ToxoidsAnti-D ≥ 1 IU/mL, M1308 Participants
Boostrix-Polio GroupNumber of Subjects With Anti-diphtheria (Anti-D) and Anti-tetanus (Anti-T) ToxoidsAnti-T ≥ 0.1 IU/mL, M0330 Participants
Boostrix-Polio GroupNumber of Subjects With Anti-diphtheria (Anti-D) and Anti-tetanus (Anti-T) ToxoidsAnti-T ≥ 0.1 IU/mL, M1336 Participants
Boostrix-Polio GroupNumber of Subjects With Anti-diphtheria (Anti-D) and Anti-tetanus (Anti-T) ToxoidsAnti-T ≥ 1 IU/mL, M0181 Participants
Boostrix-Polio GroupNumber of Subjects With Anti-diphtheria (Anti-D) and Anti-tetanus (Anti-T) ToxoidsAnti-T ≥ 1 IU/mL, M1335 Participants
Boostrix + IPV Mérieux GroupNumber of Subjects With Anti-diphtheria (Anti-D) and Anti-tetanus (Anti-T) ToxoidsAnti-T ≥ 1 IU/mL, M161 Participants
Boostrix + IPV Mérieux GroupNumber of Subjects With Anti-diphtheria (Anti-D) and Anti-tetanus (Anti-T) ToxoidsAnti-D ≥ 0.1 IU/mL, M053 Participants
Boostrix + IPV Mérieux GroupNumber of Subjects With Anti-diphtheria (Anti-D) and Anti-tetanus (Anti-T) ToxoidsAnti-T ≥ 0.1 IU/mL, M061 Participants
Boostrix + IPV Mérieux GroupNumber of Subjects With Anti-diphtheria (Anti-D) and Anti-tetanus (Anti-T) ToxoidsAnti-D ≥ 0.1 IU/mL, M162 Participants
Boostrix + IPV Mérieux GroupNumber of Subjects With Anti-diphtheria (Anti-D) and Anti-tetanus (Anti-T) ToxoidsAnti-T ≥ 1 IU/mL, M035 Participants
Boostrix + IPV Mérieux GroupNumber of Subjects With Anti-diphtheria (Anti-D) and Anti-tetanus (Anti-T) ToxoidsAnti-D ≥ 1 IU/mL, M013 Participants
Boostrix + IPV Mérieux GroupNumber of Subjects With Anti-diphtheria (Anti-D) and Anti-tetanus (Anti-T) ToxoidsAnti-T ≥ 0.1 IU/mL, M162 Participants
Boostrix + IPV Mérieux GroupNumber of Subjects With Anti-diphtheria (Anti-D) and Anti-tetanus (Anti-T) ToxoidsAnti-D ≥ 1 IU/mL, M155 Participants
Secondary

Number of Subjects With Any Solicited General Symptoms

Assessed solicited general symptoms were fatigue, gastrointestinal, headache and temperature \[defined as axillary temperature equal to or above 37.5 degrees Celsius (°C)\]. Any = occurrence of the symptom regardless of intensity grade and relationship to vaccination.

Time frame: During the 4-day (Days 0-3) follow-up period after booster vaccination

Population: The analysis was performed on the Total Vaccinated Cohort, which included all vaccinated subjects for whom data were available and who had the symptoms sheet filled in.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Boostrix-Polio GroupNumber of Subjects With Any Solicited General SymptomsAny Gastrointestinal41 Participants
Boostrix-Polio GroupNumber of Subjects With Any Solicited General SymptomsAny Fatigue87 Participants
Boostrix-Polio GroupNumber of Subjects With Any Solicited General SymptomsAny Temperature14 Participants
Boostrix-Polio GroupNumber of Subjects With Any Solicited General SymptomsAny Headache76 Participants
Boostrix + IPV Mérieux GroupNumber of Subjects With Any Solicited General SymptomsAny Temperature0 Participants
Boostrix + IPV Mérieux GroupNumber of Subjects With Any Solicited General SymptomsAny Gastrointestinal4 Participants
Boostrix + IPV Mérieux GroupNumber of Subjects With Any Solicited General SymptomsAny Fatigue14 Participants
Boostrix + IPV Mérieux GroupNumber of Subjects With Any Solicited General SymptomsAny Headache12 Participants
Secondary

Number of Subjects With Any Solicited Local Symptoms

Assessed solicited local symptoms were pain, redness and swelling. Any = occurrence of the symptom regardless of intensity grade.

Time frame: During the 4-day (Days 0-3) follow-up period after booster vaccination

Population: The analysis was performed on the Total Vaccinated Cohort, which included all vaccinated subjects for whom data were available.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Boostrix-Polio GroupNumber of Subjects With Any Solicited Local SymptomsAny Pain257 Participants
Boostrix-Polio GroupNumber of Subjects With Any Solicited Local SymptomsAny Redness169 Participants
Boostrix-Polio GroupNumber of Subjects With Any Solicited Local SymptomsAny Swelling141 Participants
Boostrix + IPV Mérieux GroupNumber of Subjects With Any Solicited Local SymptomsAny Pain45 Participants
Boostrix + IPV Mérieux GroupNumber of Subjects With Any Solicited Local SymptomsAny Redness26 Participants
Boostrix + IPV Mérieux GroupNumber of Subjects With Any Solicited Local SymptomsAny Swelling22 Participants
Secondary

Number of Subjects With Booster Response to Anti-PT, Anti-FHA and Anti-PRN

Booster vaccine response was defined as appearance of antibodies in subjects who were seronegative at the pre-vaccination time point (i.e. with concentrations \< 5 EL.U/mL) or at least 2-fold increase of pre-vaccination antibody concentrations in subjects who were seropositive at the pre-vaccination time point (i.e. with concentrations \< 5 EL.U/mL).

Time frame: One month after booster vaccination (At Month 1)

Population: The analysis was performed on the According-to-Protocol (ATP) cohort for immunogenicity, which included all evaluable subjects vaccinated with a booster dose of Boostrix™-Polio vaccine in this current study (110947), for whom immunogenicity data and assay results for antibodies against at least one study vaccine antigen component were available.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Boostrix-Polio GroupNumber of Subjects With Booster Response to Anti-PT, Anti-FHA and Anti-PRNAnti-PT308 Participants
Boostrix-Polio GroupNumber of Subjects With Booster Response to Anti-PT, Anti-FHA and Anti-PRNAnti-FHA311 Participants
Boostrix-Polio GroupNumber of Subjects With Booster Response to Anti-PT, Anti-FHA and Anti-PRNAnti-PRN319 Participants
Boostrix + IPV Mérieux GroupNumber of Subjects With Booster Response to Anti-PT, Anti-FHA and Anti-PRNAnti-PT56 Participants
Boostrix + IPV Mérieux GroupNumber of Subjects With Booster Response to Anti-PT, Anti-FHA and Anti-PRNAnti-FHA56 Participants
Boostrix + IPV Mérieux GroupNumber of Subjects With Booster Response to Anti-PT, Anti-FHA and Anti-PRNAnti-PRN61 Participants
Secondary

Number of Subjects With Serious Adverse Events (SAEs)

Assessed SAEs include medical occurrences that result in death, are life-threatening, require hospitalization or prolongation of hospitalization or result in disability/incapacity.

Time frame: During the entire booster period (Month 0 to Month 1)

Population: The analysis was performed on the Total Vaccinated Cohort, which included all vaccinated subjects for whom data were available.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Boostrix-Polio GroupNumber of Subjects With Serious Adverse Events (SAEs)0 Participants
Boostrix + IPV Mérieux GroupNumber of Subjects With Serious Adverse Events (SAEs)0 Participants
Secondary

Number of Subjects With Unsolicited Adverse Events (AEs)

AEs results are presented for all subjects. An unsolicited AE covers any untoward medical occurrence in a clinical investigation subject temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product and reported in addition to those solicited during the clinical study and any solicited symptom with onset outside the specified period of follow-up for solicited symptoms. Any was defined as the occurrence of any unsolicited AE regardless of intensity grade or relation to vaccination.

Time frame: During the 31-day (Days 0-30) follow-up period after booster vaccination

Population: The analysis was performed on the Total Vaccinated Cohort, which included all vaccinated subjects for whom data were available.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Boostrix-Polio GroupNumber of Subjects With Unsolicited Adverse Events (AEs)47 Participants
Boostrix + IPV Mérieux GroupNumber of Subjects With Unsolicited Adverse Events (AEs)17 Participants

Source: ClinicalTrials.gov · Data processed: Mar 31, 2026