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Study of BPZE1 Intranasal Pertussis Vaccine (Administered Via VaxINator(TM)), Prime + Boost, in Healthy Adults

Phase 2b Study of BPZE1 Intranasal Pertussis Vaccine in Adults to Assess Immunological Response and Safety Profile of 1-Dose (Prime) and 2-Doses (Prime+Boost) Schedule, Compared to a Boostrix™ Prime Dose With or Without a BPZE1 Boost Dose

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03942406
Enrollment
300
Registered
2019-05-08
Start date
2019-06-15
Completion date
2020-06-24
Last updated
2023-06-27

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

Conditions

Pertussis, Whooping Cough

Keywords

pertussis, Bordetella infection, Gram-negative bacterial infection, Respiratory tract infection, Whooping cough, Infection, Respiratory tract disease, Vaccine, Immunological factors, Physiological effects of drugs

Brief summary

This study evaluates the safety and immunogenicity of the BPZE1 live attenuated pertussis vaccine, intended to prevent nasopharyngeal colonization and pertussis disease, and compares a single (prime) BPZE1 dose or BPZE1 2-dose (prime + boost) to a single (prime) Boostrix or Boostrix prime + BPZE1 boost.

Detailed description

This study evaluates the safety and immunogenicity of the BPZE1 live attenuated pertussis vaccine, intended to prevent nasopharyngeal colonization and pertussis disease, and compares a single (prime) BPZE1 dose or BPZE1 2-dose (prime + boost) to a single (prime) Boostrix or Boostrix prime + BPZE1 boost. This is a multi-center, randomized, placebo-controlled, and observer blinded trial in healthy adults with a 6 month safety follow-up after the last vaccination.

Interventions

COMBINATION_PRODUCTBPZE1 pertussis vaccine and VaxINator(TM) Atomization Device

Live attenuated pertussis vaccine administered via the VaxINator(TM) atomization device

Sponsors

PPD Development, LP
CollaboratorINDUSTRY
ILiAD Biotechnologies
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 50 Years
Healthy volunteers
Yes

Inclusion criteria

1. Is a male or nonpregnant female 18 to 50 years of age, inclusive, on Day 1 (primary vaccination). 2. Is capable of understanding the written informed consent, provides signed and witnessed written informed consent, and agrees to comply with protocol requirements. 3. Female subjects must be nonpregnant and nonlactating and meet 1 of the following criteria: 1. Postmenopausal (defined as 12 consecutive months with no menses without an alternative medical cause or documented plasma follicle-stimulating hormone level in the postmenopausal range); 2. Surgically sterile (ie, hysterectomy, bilateral tubal ligation, or bilateral oophorectomy). NOTE: These procedures and laboratory test results must be confirmed by physical examination, or by subject recall of specific date and hospital/facility of procedure, or by medical documentation of said procedure. 3. Is of childbearing potential (defined as any female who has experienced menarche and who is NOT permanently sterile or postmenopausal), agrees to be heterosexually inactive from at least 21 days prior to enrollment and through 3 months after the boosting vaccination or agrees to consistently use any of the following methods of contraception from at least 21 days prior to enrollment and through 3 months after the boosting vaccination: i. Condoms (male or female) with spermicide ii. Diaphragm with spermicide iii. Cervical cap with spermicide iv. Intrauterine device v. Oral or patch contraceptives vi. Norplant®, Depo-Provera®, or other FDA approved contraceptive method that is designed to protect against pregnancy. NOTE: Periodic abstinence (eg, calendar, ovulation, symptothermal, post ovulation methods) and withdrawal are not acceptable methods of contraception. 4. Has a stable health status as assessed by the investigator, as established by physical examination, vital sign measurements, and medical history. 5. Has access to a consistent and reliable means of telephone contact, which may be in the home, workplace, or by personal mobile electronic device. 6. Is able to understand and comply with planned study procedures. 7. Lives a reasonable distance from the clinical site to be able to travel to and from the clinical site for follow-up visits and agrees to go to the clinical site for evaluation (or provide medical record access if evaluated elsewhere) in the event of an AE. 8. Agrees to stay in contact with the clinical site for the duration of the study, has no current plans to move from the study area, and provides updated contact information as necessary.

Exclusion criteria

1. History of being vaccinated in the past 5 years against pertussis. 2. Any significant past reaction to any component of Boostrix (at the discretion of the investigator). 3. Subject reported diagnosis of pertussis in the past 10 years (must be laboratory confirmed or physician diagnosed from medical records). 4. Vital signs by FDA toxicity scoring \>1 (may be repeated once during the screening period to allow for inclusion and the most recent measurement taken at baseline). 5. Chronic illness being treated actively and with evidence of recent intervention for worsening or fluctuating symptoms (at the discretion of the investigator). 6. The subject has a history of active cancer (malignancy) in the last 10 years (exception is subjects with adequately treated non melanomatous skin carcinoma, who may participate in the study). 7. Current use of any smoking products and unwillingness to refrain from the use of any smoking products from screening through 28 days after the boosting vaccination. 8. Use of narcotic drugs, evidenced by urine toxicology screen or a history of drug/alcohol abuse within the past 2 years. 9. Has donated blood or suffered from blood loss of more than 450 mL (1 unit of blood) within 60 days prior to screening or donated plasma within 14 days prior to screening. 10. Receipt of immunoglobulin, blood-derived products, systemic corticosteroids, or other immunosuppressant drugs within 90 days prior to Day 1. 11. Asthma, obstructive nasal canal, recurrent or acute sinusitis or other chronic respiratory problems inclusive of the diagnosis of any significant pulmonary disease. 12. History of nasal surgery or Bell's palsy. 13. Use of repeated nasal sprays, Neti pot, routine nasal washing within the past 1 month (more than 2 times per week). Subjects must agree to refrain from use of any of these modalities through Day 113. 14. A temporary exclusion to vaccinate if acute respiratory tract infection or rhinorrhea or temperature \>100.4°F (no symptoms for 3 days prior to vaccination day). Subjects may be vaccinated if they stay within the vaccination window (screening \[30 days\] or at the time of the booster \[10 days\]). NOTE: If a subject exceeds the screening window, they must be reconsented and screening must be reinitiated. 15. Use of corticosteroids in the respiratory tract (eg, nasal steroids, inhaled steroids) within 30 days prior to Day 1. 16. Receipt of a licensed vaccine within the last 30 days prior to Day 1 or planned vaccination during the active study conduct through Day 113. In the case of seasonal influenza, vaccination should not be withheld and is not contraindicated for subject participation. However, vaccination should be planned outside of a 30 day pre- and 30 day post vaccination window whenever possible. 17. Known hypersensitivity to any component of the study vaccines. 18. Participation in any other clinical trial for the testing of an unlicensed product during the previous 6 months or planned during the study conduct. 19. Inability to adhere to the protocol, including plans to move from the area. 20. Personal history or family (first degree) history of congenital or hereditary immunodeficiency. 21. Past or present infection with human immunodeficiency virus, hepatitis B, or hepatitis C by screening test. 22. Any autoimmune or immunodeficiency disease/condition (inherited or iatrogenic). 23. Any neurological disease or history of significant neurological disorder (eg, meningitis, seizures, multiple sclerosis, vasculitis, migraines, Guillain-Barré syndrome \[genetic/congenital or acquired\]). 24. Any medical condition that, in the opinion of the investigator, might interfere with the evaluation of the study objectives or might affect the safety of the individual, (eg, major depression or history of suicidal attempt). 25. Toxicity grading \>1 for screening laboratory test results for kidney, hepatic, and hematologic values (may be repeated once during the screening period to allow for inclusion and the most recent measurement taken at baseline). See Table 13 2 for specifically designated parameters. 26. Body mass index \<17 kg/m2 or \>40 kg/m2. 27. Frequent contact with children less than 1 year of age (parent, childcare worker, nurse, etc.) or residence in the same household as persons with known immunodeficiency including persons on immunosuppressant therapy. 28. Study team member or first-degree relative of study team member.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Nasal Mucosal Seroconversion (Immunoglobulin A [IgA])Days 29 and 113Number of participants who achieve mucosal seroconversion (IgA) against at least 1 anti-pertussis antibody for whole cell extract (WCE), pertussis toxin (PT), filamentous hemagglutinin (FHA), or pertactin (PRN) on Day 29 or Day 113. Mucosal seroconversion was defined as a 2-fold increase over the baseline value or a 4-fold increase over the minimal detection limit of the assay (whenever the baseline value was below the detection limits of the assay).
Safety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Through 7 Days Following Day 1 VaccinationNumber of participants with Solicited AEs (nasal/respiratory reactogenicity events) by Grade - Any Day Grade 1 through 3 and Grade 3. Grading of reactogenicity is defined per protocol as Grade 1 (mild), Grade 2 (moderate), and Grade 3 (severe) AEs.
Safety - Number of Participants With Local Solicited AEsThrough 7 Days Following Day 1 VaccinationNumber of participants with Solicited AEs (local reactogenicity events) by Grade - Any Day Grade 1 through 4 and Grade 3 and 4. Grading of reactogenicity is defined per protocol as Grade 1 (mild), Grade 2 (moderate), Grade 3 (severe), and Grade 4 (potentially life-threatening) AEs.
Safety - Number of Participants With Systemic Solicited AEsThrough 7 Days Following Day 1 VaccinationNumber of participants with Solicited AEs (systemic reactogenicity events) by Grade - Any Day Grade 1 through 3 and Grade 3. Grading of reactogenicity is defined per protocol as Grade 1 (mild), Grade 2 (moderate), and Grade 3 (severe) AEs.
Safety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Days 8 and 92Number of participants in the safety lead-in cohort with Grade 2 through 4 laboratory abnormalities: Serum Chemistry - Bilirubin, Creatinine, ALT, AST; WBC, Hemoglobin, Prothrombin time, Partial Thromboplastin Time. Grading of laboratory results is defined per protocol as Grade 1 (mild), Grade 2 (moderate), Grade 3 (severe) and Grade 4 (potentially life-threatening) laboratory abnormalities (DHHS 2007).

Secondary

MeasureTime frameDescription
Mucosal Immunogenicity - Summary of GMFRs of Mucosal Absolute S-IgA/Total S-IgA Against Whole Cell Extract by Vaccine Group and Time PointDays 29 and 78Mucosal Immunogenicity: Summary of GMFRs of Mucosal Absolute S-IgA/Total S-IgA Against Whole Cell Extract by Vaccine Group and Time Point - GMFRs on Day 29 and Day 78 over baseline (Day 1)
Colonization - Summary of Colonization for B. Pertussis Bacterial Culture From Nasal Sample by TimepointDays 92, 96, 113Number of participants with positive B. pertussis by bacterial culture of nasal sample on any of Days 92, 96, and 113 (colonization)
Systemic Immunogenicity - Summary of Systemic IgG Seroconversion Endpoints9 monthsNumber of participants who achieve seroconversion (serum IgG) against 1 or more pertussis antigens (pertussis toxin \[PT\], filamentous hemagglutinin \[FHA\], pertactin \[PRN\], or whole cell extract \[WCE\]) on Days 29, 85, 113, 169, and/or 254. Systemic seroconversion was defined as a 2-fold increase over the baseline value or a 4-fold increase over the minimal detection limit of the assay (whenever the baseline value fell below the detection limits of the assay).
Safety - Number of Participants With Serious AEsDays 1 to 84Number of participants with Serious AEs collected on Day 1 through Day 84 by MedDRA classification.
Safety - Number of Participants With Unsolicited AEsDays 1 through 29Number of participants with Unsolicited AEs collected Day 1 to Day 29 by Medical Dictionary for Regulatory Activities (MedDRA) classification. Threshold is greater than or equal to 5% of participants.
Systemic Immunogenicity - Summary of Systemic IgA Seroconversion Endpoints9 MonthsNumber of participants who achieve seroconversion (serum IgA) against 1 or more pertussis antigens (PT, FHA, PRN) on Days 29, 85, 113, 169, and/or 254. Systemic seroconversion was defined as a 2-fold increase over the baseline value or a 4-fold increase over the minimal detection limit of the assay (whenever the baseline value fell below the detection limits of the assay).
Systemic Immunogenicity - Summary of Geometric Mean Fold Rises (GMFRs) of Systemic IgG Against Whole Cell Extract by Vaccine Group and Time PointDays 29 and 85Systemic Immunogenicity: Summary of GMFRs of Systemic IgG Against Whole Cell Extract by Vaccine Group and Time Point - GMFRs on Day 29 and Day 85 over baseline (Day 1)
Systemic Immunogenicity - Summary of GMFRs of Systemic IgG Against Whole Cell Extract by Vaccine Group and Time PointDays 113, 169 and 254Systemic Immunogenicity: Summary of GMFRs of Systemic IgG Against Whole Cell Extract by Vaccine Group and Time Point - GMFRs on Days 113, 169, and 254 over baseline (Day 1)
Mucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion Endpoints9 monthsNumber of participants who achieve seroconversion against any pertussis specific antigen (PT, PRN, FHA, or WCE) in nasal secretions (S-IgA). Mucosal seroconversion was defined as a 2-fold increase over the baseline value or a 4-fold increase over the minimal detection limit of the assay (whenever the baseline value was below the detection limits of the assay).

Countries

United States

Participant flow

Recruitment details

Period 1 (Day 1): Prime; Period 2 (Day 85): Boost 300 participants: * 20 received BPZE1 10\^7 CFU as a Safety Lead-in cohort (Prime/Boost: BPZE1/BPZE1 \[n=8\]; BPZE1/Placebo \[n=8\]; Boostrix/BPZE1 \[n=4\]). Safety Lead-in cohort used for one secondary endpoint (abnormal laboratory) and Safety. * 280 in 10\^9 ITT Analysis Set (Prime/Boost: BPZE 10\^9/BPZE1 10\^9 \[n=92\]; BPZE1 10\^9/Placebo \[n=92\]; Boostrix/BPZE1 10\^9 \[n=46\], and Boostrix/Placebo \[n=50\]).

Participants by arm

ArmCount
BPZE1 Intranasal Prime, BPZE1 Boost
Individual will receive an intranasal dose of BPZE1 via the VaxINator atomization device and a dose of IM placebo on Day. Individuals will receive a boost dose of intranasal BPZE1 via the VaxINator™ atomization device on Day 85. (10\^9 ITT Analysis Set)
92
BPZE1 Intranasal Prime, Placebo Boost
Individual will receive an intranasal dose of BPZE1 via the VaxINator atomization device and a dose of IM placebo on Day 1. Individuals will receive a boost dose of intranasal placebo via the VaxINator™ atomization device on Day 85. (10\^9 ITT Analysis Set)
92
Boostrix IM Prime, BPZE1 Boost
Individual will receive an intranasal dose of placebo via the VaxINator atomization device and a dose of IM Boostrix (aP vaccine comparator) on Day 1. Individuals will receive a boost dose of intranasal BPZE1 via the VaxINator™ atomization device on Day 85. (10\^9 ITT Analysis Set)
46
Boostrix IM Prime, Placebo Boost
Individual will receive an intranasal dose of placebo via the VaxINator atomization device and a dose of IM Boostrix (aP vaccine comparator) on Day 1. Individuals will receive a boost dose of intranasal placebo via the VaxINator™ atomization device on Day 85. (10\^9 ITT Analysis Set)
50
BPZE1 (10^7) Intranasal Prime, BPZE1 (10^7) Boost
Individual will receive an intranasal dose of BPZE1 via the VaxINator atomization device and a dose of IM placebo on Day 1. Individuals will receive a boost dose of intranasal BPZE1 via the VaxINator™ atomization device on Day 85. (10\^7 Safety Lead-in Analysis Set)
8
BPZE1 (10^7) Intranasal Prime, Placebo Boost
Individual will receive an intranasal dose of BPZE1 via the VaxINator atomization device and a dose of IM placebo on Day 1. Individuals will receive a boost dose of intranasal placebo via the VaxINator™ atomization device on Day 85. (10\^7 Safety Lead-in Analysis Set)
8
Boostrix IM Prime, BPZE1 (10^7) Boost
Individual will receive an intranasal dose of placebo via the VaxINator atomization device and a dose of IM Boostrix (aP vaccine comparator) on Day 1. Individuals will receive a boost dose of intranasal BPZE1 via the VaxINator™ atomization device on Day 85. (10\^7 Safety Lead-in Analysis Set)
4
Total300

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006
Overall StudyLost to Follow-up4537100
Overall StudyOther: early termination, telemedicine visits4110110
Overall StudyWithdrawal by Subject3113000

Baseline characteristics

CharacteristicBPZE1 (10^7) Intranasal Prime, Placebo BoostBoostrix IM Prime, BPZE1 (10^7) BoostTotalBPZE1 Intranasal Prime, BPZE1 BoostBPZE1 (10^7) Intranasal Prime, BPZE1 (10^7) BoostBoostrix IM Prime, Placebo BoostBoostrix IM Prime, BPZE1 BoostBPZE1 Intranasal Prime, Placebo Boost
Age, Continuous34.6 years
STANDARD_DEVIATION 8.7
35.5 years
STANDARD_DEVIATION 12
35.0 years
STANDARD_DEVIATION 9.1
35.6 years
STANDARD_DEVIATION 9
31.6 years
STANDARD_DEVIATION 10.3
34.2 years
STANDARD_DEVIATION 9.9
34.6 years
STANDARD_DEVIATION 9
35.2 years
STANDARD_DEVIATION 8.8
Body Mass Index (BMI)31.1 kg/m^2
STANDARD_DEVIATION 7
29.6 kg/m^2
STANDARD_DEVIATION 7.3
27.9 kg/m^2
STANDARD_DEVIATION 5.3
28.0 kg/m^2
STANDARD_DEVIATION 5.4
26.7 kg/m^2
STANDARD_DEVIATION 7.7
27.2 kg/m^2
STANDARD_DEVIATION 5
27.7 kg/m^2
STANDARD_DEVIATION 5
28.1 kg/m^2
STANDARD_DEVIATION 5.6
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants0 Participants42 Participants15 Participants0 Participants7 Participants8 Participants11 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
7 Participants4 Participants258 Participants77 Participants8 Participants43 Participants38 Participants81 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants8 Participants1 Participants0 Participants1 Participants5 Participants1 Participants
Race (NIH/OMB)
Black or African American
1 Participants2 Participants61 Participants19 Participants0 Participants8 Participants9 Participants22 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants4 Participants0 Participants1 Participants0 Participants1 Participants2 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants3 Participants1 Participants0 Participants0 Participants0 Participants2 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants1 Participants1 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
7 Participants2 Participants223 Participants70 Participants7 Participants41 Participants31 Participants65 Participants
Sex: Female, Male
Female
4 Participants3 Participants165 Participants56 Participants3 Participants27 Participants26 Participants46 Participants
Sex: Female, Male
Male
4 Participants1 Participants135 Participants36 Participants5 Participants23 Participants20 Participants46 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
deaths
Total, all-cause mortality
0 / 870 / 960 / 460 / 500 / 80 / 80 / 4
other
Total, other adverse events
25 / 8726 / 9614 / 4612 / 503 / 82 / 81 / 4
serious
Total, serious adverse events
1 / 873 / 961 / 460 / 500 / 80 / 80 / 4

Outcome results

Primary

Number of Participants With Nasal Mucosal Seroconversion (Immunoglobulin A [IgA])

Number of participants who achieve mucosal seroconversion (IgA) against at least 1 anti-pertussis antibody for whole cell extract (WCE), pertussis toxin (PT), filamentous hemagglutinin (FHA), or pertactin (PRN) on Day 29 or Day 113. Mucosal seroconversion was defined as a 2-fold increase over the baseline value or a 4-fold increase over the minimal detection limit of the assay (whenever the baseline value was below the detection limits of the assay).

Time frame: Days 29 and 113

Population: 10\^9 Immunogenicity Analysis Set. The overall number of participants analyzed includes participants with nonmissing values. Note: Participants who were randomized to receive BPZE1 as the second vaccination (ie, revaccination/attenuated challenge) but who did not receive a second vaccination and continued in the study after second vaccination were placed into the BPZE1/Placebo or Boostrix/Placebo group according to first vaccine received.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
BPZE1 Intranasal Prime, BPZE1 BoostNumber of Participants With Nasal Mucosal Seroconversion (Immunoglobulin A [IgA])79 Participants
BPZE1 Intranasal Prime, Placebo BoostNumber of Participants With Nasal Mucosal Seroconversion (Immunoglobulin A [IgA])89 Participants
Boostrix IM Prime, BPZE1 BoostNumber of Participants With Nasal Mucosal Seroconversion (Immunoglobulin A [IgA])38 Participants
Boostrix IM Prime, Placebo BoostNumber of Participants With Nasal Mucosal Seroconversion (Immunoglobulin A [IgA])42 Participants
Primary

Safety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)

Number of participants in the safety lead-in cohort with Grade 2 through 4 laboratory abnormalities: Serum Chemistry - Bilirubin, Creatinine, ALT, AST; WBC, Hemoglobin, Prothrombin time, Partial Thromboplastin Time. Grading of laboratory results is defined per protocol as Grade 1 (mild), Grade 2 (moderate), Grade 3 (severe) and Grade 4 (potentially life-threatening) laboratory abnormalities (DHHS 2007).

Time frame: Days 8 and 92

Population: Safety Lead-in Participants vaccinated with BPZE1 10\^7 CFU for Prime (Day 1) and/or Boost (Day 85)

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
BPZE1 Intranasal Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)WBC Increase Day 920 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)ALT Day 80 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Partial Thromboplastin Time Increase by Factor Day 80 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Platelets Decrease Day 920 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)WBC Increase Day 80 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)AST Day 80 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)ALT Day 920 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Prothrombin Time Increase by Factor Day 82 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)WBC decrease Day 920 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)WBC decrease Day 80 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Partial Thromboplastin Time Increase by Factor Day 920 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Bilirubin Increase Day 81 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Prothrombin Time Increase by Factor Day 920 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Platelets Decrease Day 80 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Bilirubin Increase Day 920 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Hemoglobin Day 920 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Creatinine Day 80 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)AST Day 920 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Hemoglobin Day 80 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Creatinine Day 920 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Platelets Decrease Day 80 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Creatinine Day 920 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)WBC Increase Day 920 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Hemoglobin Day 920 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Bilirubin Increase Day 80 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Creatinine Day 80 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)ALT Day 80 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)ALT Day 920 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)AST Day 80 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)AST Day 920 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)WBC decrease Day 80 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)WBC decrease Day 920 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)WBC Increase Day 80 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Hemoglobin Day 80 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Bilirubin Increase Day 920 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Platelets Decrease Day 920 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Prothrombin Time Increase by Factor Day 80 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Prothrombin Time Increase by Factor Day 920 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Partial Thromboplastin Time Increase by Factor Day 80 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Partial Thromboplastin Time Increase by Factor Day 920 Participants
Boostrix IM Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Partial Thromboplastin Time Increase by Factor Day 80 Participants
Boostrix IM Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Hemoglobin Day 81 Participants
Boostrix IM Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Bilirubin Increase Day 920 Participants
Boostrix IM Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Hemoglobin Day 921 Participants
Boostrix IM Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Bilirubin Increase Day 80 Participants
Boostrix IM Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Prothrombin Time Increase by Factor Day 920 Participants
Boostrix IM Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Platelets Decrease Day 80 Participants
Boostrix IM Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)WBC Increase Day 920 Participants
Boostrix IM Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)ALT Day 80 Participants
Boostrix IM Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Platelets Decrease Day 920 Participants
Boostrix IM Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Partial Thromboplastin Time Increase by Factor Day 920 Participants
Boostrix IM Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)WBC decrease Day 80 Participants
Boostrix IM Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)AST Day 920 Participants
Boostrix IM Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Prothrombin Time Increase by Factor Day 80 Participants
Boostrix IM Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)WBC decrease Day 920 Participants
Boostrix IM Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)ALT Day 920 Participants
Boostrix IM Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)AST Day 80 Participants
Boostrix IM Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)WBC Increase Day 80 Participants
Boostrix IM Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Creatinine Day 920 Participants
Boostrix IM Prime, BPZE1 BoostSafety Lead-in Participants With Abnormal Laboratory Parameters (BPZE1 10^7 Safety Lead-In)Creatinine Day 80 Participants
Primary

Safety - Number of Participants With Local Solicited AEs

Number of participants with Solicited AEs (local reactogenicity events) by Grade - Any Day Grade 1 through 4 and Grade 3 and 4. Grading of reactogenicity is defined per protocol as Grade 1 (mild), Grade 2 (moderate), Grade 3 (severe), and Grade 4 (potentially life-threatening) AEs.

Time frame: Through 7 Days Following Day 1 Vaccination

Population: 10\^9 Safety Analysis Set. Note: Participants who were randomized to receive BPZE1 as the second vaccination (ie, revaccination/attenuated challenge) but who did not receive a second vaccination and continued in the study were placed into the BPZE1/Placebo or Boostrix/Placebo group according to first vaccine received.

ArmMeasureGroupValue (NUMBER)
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Local Solicited AEsErythema/Redness - Any Day Grade 1 Through 40 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Local Solicited AEsInduration/Swelling - Any Day Grade 1 Through 40 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Local Solicited AEsErythema/Redness - Any Day Grade 3 and 40 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Local Solicited AEsInduration/Swelling - Any Day Grade 3 and 40 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Local Solicited AEsTenderness - Any Day Grade 1 Through 415 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Local Solicited AEsPain - Any Day Grade 1 Through 48 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Local Solicited AEsPain - Any Day Grade 3 and 40 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Local Solicited AEsTenderness - Any Day Grade 3 and 40 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Local Solicited AEsInduration/Swelling - Any Day Grade 3 and 40 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Local Solicited AEsPain - Any Day Grade 1 Through 47 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Local Solicited AEsErythema/Redness - Any Day Grade 1 Through 42 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Local Solicited AEsTenderness - Any Day Grade 3 and 40 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Local Solicited AEsPain - Any Day Grade 3 and 40 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Local Solicited AEsErythema/Redness - Any Day Grade 3 and 40 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Local Solicited AEsTenderness - Any Day Grade 1 Through 413 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Local Solicited AEsInduration/Swelling - Any Day Grade 1 Through 40 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Local Solicited AEsErythema/Redness - Any Day Grade 3 and 40 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Local Solicited AEsInduration/Swelling - Any Day Grade 3 and 40 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Local Solicited AEsPain - Any Day Grade 1 Through 422 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Local Solicited AEsTenderness - Any Day Grade 1 Through 428 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Local Solicited AEsErythema/Redness - Any Day Grade 1 Through 41 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Local Solicited AEsTenderness - Any Day Grade 3 and 40 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Local Solicited AEsInduration/Swelling - Any Day Grade 1 Through 44 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Local Solicited AEsPain - Any Day Grade 3 and 40 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Local Solicited AEsInduration/Swelling - Any Day Grade 3 and 40 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Local Solicited AEsErythema/Redness - Any Day Grade 3 and 40 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Local Solicited AEsPain - Any Day Grade 1 Through 427 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Local Solicited AEsPain - Any Day Grade 3 and 40 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Local Solicited AEsTenderness - Any Day Grade 1 Through 430 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Local Solicited AEsTenderness - Any Day Grade 3 and 40 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Local Solicited AEsErythema/Redness - Any Day Grade 1 Through 42 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Local Solicited AEsInduration/Swelling - Any Day Grade 1 Through 42 participants
Primary

Safety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)

Number of participants with Solicited AEs (nasal/respiratory reactogenicity events) by Grade - Any Day Grade 1 through 3 and Grade 3. Grading of reactogenicity is defined per protocol as Grade 1 (mild), Grade 2 (moderate), and Grade 3 (severe) AEs.

Time frame: Through 7 Days Following Day 1 Vaccination

Population: 10\^9 Safety Analysis Set. Note: Participants who were randomized to receive BPZE1 as the second vaccination (ie, revaccination/attenuated challenge) but who did not receive a second vaccination and continued in the study were placed into the BPZE1/Placebo or Boostrix/Placebo group according to first vaccine received.

ArmMeasureGroupValue (NUMBER)
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Sore/Irritated Throat - Any Day Grade 30 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Cough - Any Day Grade 1 through 311 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Cough - Any Day Grade 30 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Stuffy Nose/Congestion - Any Day Grade 1 through 327 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Shortness of Breath/Wheezing - Any Day Grade 1 through 31 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Shortness of Breath/Wheezing - Any Day Grade 30 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Runny Nose - Any Day Grade 1 through 325 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Nasal Pain/Irritation - Any Day Grade 30 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Stuffy Nose/Congestion - Any Day Grade 30 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Nasal Pain/Irritation - Any Day Grade 1 through 310 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Epistaxis - Any Day Grade 30 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Epistaxis - Any Day Grade 1 through 31 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Sneezing - Any Day Grade 1 through 325 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Sneezing - Any Day Grade 30 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Sinus Pressure/Pain - Any Day Grade 1 through 312 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Sinus Pressure/Pain - Any Day Grade 30 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Sore/Irritated Throat - Any Day Grade 1 through 322 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Runny Nose - Any Day Grade 30 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Runny Nose - Any Day Grade 1 through 341 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Sore/Irritated Throat - Any Day Grade 30 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Sore/Irritated Throat - Any Day Grade 1 through 329 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Runny Nose - Any Day Grade 30 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Nasal Pain/Irritation - Any Day Grade 30 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Cough - Any Day Grade 1 through 318 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Sinus Pressure/Pain - Any Day Grade 1 through 319 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Sneezing - Any Day Grade 30 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Sneezing - Any Day Grade 1 through 335 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Cough - Any Day Grade 30 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Sinus Pressure/Pain - Any Day Grade 30 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Epistaxis - Any Day Grade 1 through 35 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Shortness of Breath/Wheezing - Any Day Grade 1 through 37 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Stuffy Nose/Congestion - Any Day Grade 1 through 344 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Nasal Pain/Irritation - Any Day Grade 1 through 313 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Shortness of Breath/Wheezing - Any Day Grade 30 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Epistaxis - Any Day Grade 30 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Stuffy Nose/Congestion - Any Day Grade 30 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Sore/Irritated Throat - Any Day Grade 1 through 38 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Sinus Pressure/Pain - Any Day Grade 1 through 35 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Stuffy Nose/Congestion - Any Day Grade 30 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Epistaxis - Any Day Grade 1 through 32 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Shortness of Breath/Wheezing - Any Day Grade 1 through 32 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Nasal Pain/Irritation - Any Day Grade 1 through 37 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Nasal Pain/Irritation - Any Day Grade 30 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Sneezing - Any Day Grade 30 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Epistaxis - Any Day Grade 30 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Sore/Irritated Throat - Any Day Grade 30 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Sinus Pressure/Pain - Any Day Grade 30 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Cough - Any Day Grade 1 through 310 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Runny Nose - Any Day Grade 30 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Cough - Any Day Grade 30 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Sneezing - Any Day Grade 1 through 315 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Runny Nose - Any Day Grade 1 through 317 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Shortness of Breath/Wheezing - Any Day Grade 30 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Stuffy Nose/Congestion - Any Day Grade 1 through 319 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Shortness of Breath/Wheezing - Any Day Grade 30 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Sneezing - Any Day Grade 30 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Runny Nose - Any Day Grade 1 through 316 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Runny Nose - Any Day Grade 30 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Stuffy Nose/Congestion - Any Day Grade 1 through 315 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Stuffy Nose/Congestion - Any Day Grade 30 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Nasal Pain/Irritation - Any Day Grade 1 through 37 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Nasal Pain/Irritation - Any Day Grade 30 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Epistaxis - Any Day Grade 1 through 31 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Epistaxis - Any Day Grade 30 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Sneezing - Any Day Grade 1 through 313 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Sinus Pressure/Pain - Any Day Grade 1 through 310 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Sinus Pressure/Pain - Any Day Grade 30 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Sore/Irritated Throat - Any Day Grade 1 through 310 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Sore/Irritated Throat - Any Day Grade 30 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Cough - Any Day Grade 1 through 39 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Cough - Any Day Grade 30 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Nasal/Respiratory Solicited Adverse Events (AEs)Shortness of Breath/Wheezing - Any Day Grade 1 through 33 participants
Primary

Safety - Number of Participants With Systemic Solicited AEs

Number of participants with Solicited AEs (systemic reactogenicity events) by Grade - Any Day Grade 1 through 3 and Grade 3. Grading of reactogenicity is defined per protocol as Grade 1 (mild), Grade 2 (moderate), and Grade 3 (severe) AEs.

Time frame: Through 7 Days Following Day 1 Vaccination

Population: 10\^9 Safety Analysis Set. Note: Participants who were randomized to receive BPZE1 as the second vaccination (ie, revaccination/attenuated challenge) but who did not receive a second vaccination and continued in the study were placed into the BPZE1/Placebo or Boostrix/Placebo group according to first vaccine received.

ArmMeasureGroupValue (NUMBER)
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsFever - Any Day Grade 30 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsFatigue (Tiredness) - Any Day Grade 30 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsMyalgia (Body Aches/Muscular Pain) - Any Day Grade 1 through 38 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsMyalgia (Body Aches/Muscular Pain) - Any Day Grade 30 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsArthralgia (Joint Pain) - Any Day Grade 1 through 35 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsHeadache - Any Day Grade 30 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsFever - Any Day Grade 1 through 30 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsFatigue (Tiredness) - Any Day Grade 1 through 327 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsMalaise (General Unwell Feeling) - Any Day Grade 1 through 313 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsMalaise (General Unwell Feeling) - Any Day Grade 30 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsArthralgia (Joint Pain) - Any Day Grade 30 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsHeadache - Any Day Grade 1 through 331 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsRash/Hypersensitivity - Any Day Grade 1 through 30 participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsRash/Hypersensitivity - Any Day Grade 30 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsFever - Any Day Grade 31 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsFatigue (Tiredness) - Any Day Grade 1 through 335 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsHeadache - Any Day Grade 1 through 337 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsArthralgia (Joint Pain) - Any Day Grade 30 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsMalaise (General Unwell Feeling) - Any Day Grade 31 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsRash/Hypersensitivity - Any Day Grade 1 through 34 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsMalaise (General Unwell Feeling) - Any Day Grade 1 through 325 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsMyalgia (Body Aches/Muscular Pain) - Any Day Grade 31 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsArthralgia (Joint Pain) - Any Day Grade 1 through 37 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsFever - Any Day Grade 1 through 31 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsHeadache - Any Day Grade 31 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsMyalgia (Body Aches/Muscular Pain) - Any Day Grade 1 through 319 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsRash/Hypersensitivity - Any Day Grade 31 participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsFatigue (Tiredness) - Any Day Grade 31 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsFatigue (Tiredness) - Any Day Grade 1 through 39 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsArthralgia (Joint Pain) - Any Day Grade 1 through 31 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsHeadache - Any Day Grade 1 through 313 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsRash/Hypersensitivity - Any Day Grade 30 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsHeadache - Any Day Grade 30 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsFever - Any Day Grade 1 through 30 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsFever - Any Day Grade 30 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsMalaise (General Unwell Feeling) - Any Day Grade 30 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsMyalgia (Body Aches/Muscular Pain) - Any Day Grade 1 through 34 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsRash/Hypersensitivity - Any Day Grade 1 through 30 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsArthralgia (Joint Pain) - Any Day Grade 30 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsFatigue (Tiredness) - Any Day Grade 30 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsMalaise (General Unwell Feeling) - Any Day Grade 1 through 36 participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Systemic Solicited AEsMyalgia (Body Aches/Muscular Pain) - Any Day Grade 30 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsFatigue (Tiredness) - Any Day Grade 1 through 312 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsHeadache - Any Day Grade 30 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsRash/Hypersensitivity - Any Day Grade 1 through 31 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsFever - Any Day Grade 30 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsHeadache - Any Day Grade 1 through 322 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsMyalgia (Body Aches/Muscular Pain) - Any Day Grade 30 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsMalaise (General Unwell Feeling) - Any Day Grade 1 through 38 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsRash/Hypersensitivity - Any Day Grade 30 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsFatigue (Tiredness) - Any Day Grade 30 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsMalaise (General Unwell Feeling) - Any Day Grade 30 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsArthralgia (Joint Pain) - Any Day Grade 30 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsMyalgia (Body Aches/Muscular Pain) - Any Day Grade 1 through 38 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsArthralgia (Joint Pain) - Any Day Grade 1 through 34 participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Systemic Solicited AEsFever - Any Day Grade 1 through 30 participants
Secondary

Colonization - Summary of Colonization for B. Pertussis Bacterial Culture From Nasal Sample by Timepoint

Number of participants with positive B. pertussis by bacterial culture of nasal sample on any of Days 92, 96, and 113 (colonization)

Time frame: Days 92, 96, 113

Population: 10\^9 Immunogenicity Analysis Set. Note: Participants who were randomized to receive BPZE1 as the second vaccination (ie, revaccination/attenuated challenge) but who did not receive a second vaccination and continued in the study after second vaccination were placed into the BPZE1/Placebo or Boostrix/Placebo group according to first vaccine received. The number analyzed includes participants with nonmissing values.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
BPZE1 Intranasal Prime, BPZE1 BoostColonization - Summary of Colonization for B. Pertussis Bacterial Culture From Nasal Sample by Timepoint8 Participants
BPZE1 Intranasal Prime, Placebo BoostColonization - Summary of Colonization for B. Pertussis Bacterial Culture From Nasal Sample by Timepoint0 Participants
Boostrix IM Prime, BPZE1 BoostColonization - Summary of Colonization for B. Pertussis Bacterial Culture From Nasal Sample by Timepoint28 Participants
Boostrix IM Prime, Placebo BoostColonization - Summary of Colonization for B. Pertussis Bacterial Culture From Nasal Sample by Timepoint0 Participants
Secondary

Mucosal Immunogenicity - Summary of GMFRs of Mucosal Absolute S-IgA/Total S-IgA Against Whole Cell Extract by Vaccine Group and Time Point

Mucosal Immunogenicity: Summary of GMFRs of Mucosal Absolute S-IgA/Total S-IgA Against Whole Cell Extract by Vaccine Group and Time Point - GMFRs on Day 113, Day 169, and Day 254 over baseline (Day 1)

Time frame: Days 113, 169, 254

Population: 10\^9 Immunogenicity Analysis Set. Note: Participants who were randomized to receive BPZE1 as the second vaccination (ie, revaccination/attenuated challenge) but who did not receive a second vaccination and continued in the study after second vaccination were placed into the BPZE1/Placebo or Boostrix/Placebo group according to first vaccine received. The number analyzed includes participants with nonmissing values.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
BPZE1 Intranasal Prime, BPZE1 BoostMucosal Immunogenicity - Summary of GMFRs of Mucosal Absolute S-IgA/Total S-IgA Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 1132.96 Ratio
BPZE1 Intranasal Prime, BPZE1 BoostMucosal Immunogenicity - Summary of GMFRs of Mucosal Absolute S-IgA/Total S-IgA Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 1692.23 Ratio
BPZE1 Intranasal Prime, BPZE1 BoostMucosal Immunogenicity - Summary of GMFRs of Mucosal Absolute S-IgA/Total S-IgA Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 2541.73 Ratio
BPZE1 Intranasal Prime, Placebo BoostMucosal Immunogenicity - Summary of GMFRs of Mucosal Absolute S-IgA/Total S-IgA Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 1132.04 Ratio
BPZE1 Intranasal Prime, Placebo BoostMucosal Immunogenicity - Summary of GMFRs of Mucosal Absolute S-IgA/Total S-IgA Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 1691.57 Ratio
BPZE1 Intranasal Prime, Placebo BoostMucosal Immunogenicity - Summary of GMFRs of Mucosal Absolute S-IgA/Total S-IgA Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 2541.45 Ratio
Boostrix IM Prime, BPZE1 BoostMucosal Immunogenicity - Summary of GMFRs of Mucosal Absolute S-IgA/Total S-IgA Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 2541.26 Ratio
Boostrix IM Prime, BPZE1 BoostMucosal Immunogenicity - Summary of GMFRs of Mucosal Absolute S-IgA/Total S-IgA Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 1691.75 Ratio
Boostrix IM Prime, BPZE1 BoostMucosal Immunogenicity - Summary of GMFRs of Mucosal Absolute S-IgA/Total S-IgA Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 1131.91 Ratio
Boostrix IM Prime, Placebo BoostMucosal Immunogenicity - Summary of GMFRs of Mucosal Absolute S-IgA/Total S-IgA Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 2540.82 Ratio
Boostrix IM Prime, Placebo BoostMucosal Immunogenicity - Summary of GMFRs of Mucosal Absolute S-IgA/Total S-IgA Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 1690.82 Ratio
Boostrix IM Prime, Placebo BoostMucosal Immunogenicity - Summary of GMFRs of Mucosal Absolute S-IgA/Total S-IgA Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 1131.15 Ratio
Secondary

Mucosal Immunogenicity - Summary of GMFRs of Mucosal Absolute S-IgA/Total S-IgA Against Whole Cell Extract by Vaccine Group and Time Point

Mucosal Immunogenicity: Summary of GMFRs of Mucosal Absolute S-IgA/Total S-IgA Against Whole Cell Extract by Vaccine Group and Time Point - GMFRs on Day 29 and Day 78 over baseline (Day 1)

Time frame: Days 29 and 78

Population: 10\^9 Immunogenicity Analysis Set. The Day 29 and Day 78 GMFR values are for the pooled BPZE1 group (BPZE1/BPZE1 + BPZE1/placebo) and pooled Boostrix group (Boostrix/BPZE1 + Boostrix/placebo), since these Days are prior to the Day 85 challenge/boost. The number analyzed includes participants with nonmissing values.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
BPZE1 Intranasal Prime, BPZE1 BoostMucosal Immunogenicity - Summary of GMFRs of Mucosal Absolute S-IgA/Total S-IgA Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 292.22 Ratio
BPZE1 Intranasal Prime, BPZE1 BoostMucosal Immunogenicity - Summary of GMFRs of Mucosal Absolute S-IgA/Total S-IgA Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 782.10 Ratio
BPZE1 Intranasal Prime, Placebo BoostMucosal Immunogenicity - Summary of GMFRs of Mucosal Absolute S-IgA/Total S-IgA Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 781.04 Ratio
BPZE1 Intranasal Prime, Placebo BoostMucosal Immunogenicity - Summary of GMFRs of Mucosal Absolute S-IgA/Total S-IgA Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 291.07 Ratio
Secondary

Mucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion Endpoints

Number of participants who achieve seroconversion against any pertussis specific antigen (PT, PRN, FHA, or WCE) in nasal secretions (S-IgA). Mucosal seroconversion was defined as a 2-fold increase over the baseline value or a 4-fold increase over the minimal detection limit of the assay (whenever the baseline value was below the detection limits of the assay).

Time frame: 9 months

Population: 10\^9 Immunogenicity Analysis Set. The number analyzed includes participants with nonmissing values. Note: Participants who were randomized to receive BPZE1 as the second vaccination (ie, revaccination/attenuated challenge) but who did not receive a second vaccination and continued in the study after second vaccination were placed into the BPZE1/Placebo or Boostrix/Placebo group according to first vaccine received.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
BPZE1 Intranasal Prime, BPZE1 BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsAgainst PT, FHA, PRN: Either Day 29 or Day 11323 Participants
BPZE1 Intranasal Prime, BPZE1 BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsAgainst at least 2 of WCE, PT, FHA, or PRN: Any of Days 29, 78, or 11364 Participants
BPZE1 Intranasal Prime, BPZE1 BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsBoosting achieved on Day 113 (over Day 78) against WCE23 Participants
BPZE1 Intranasal Prime, BPZE1 BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsAgainst at least 1 of WCE, PT, FHA, or PRN: Either Day 169 or Day 25466 Participants
BPZE1 Intranasal Prime, BPZE1 BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsAgainst WCE: Either Day 29 or Day 11354 Participants
BPZE1 Intranasal Prime, BPZE1 BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsAgainst at least 1 of WCE, PT, FHA, or PRN: Any of Days 29, 78, or 11375 Participants
BPZE1 Intranasal Prime, BPZE1 BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsAgainst at least 2 of WCE, PT, FHA, or PRN: Either Day 169 or Day 25447 Participants
BPZE1 Intranasal Prime, Placebo BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsAgainst at least 1 of WCE, PT, FHA, or PRN: Either Day 169 or Day 25463 Participants
BPZE1 Intranasal Prime, Placebo BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsAgainst PT, FHA, PRN: Either Day 29 or Day 11314 Participants
BPZE1 Intranasal Prime, Placebo BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsAgainst at least 1 of WCE, PT, FHA, or PRN: Any of Days 29, 78, or 11384 Participants
BPZE1 Intranasal Prime, Placebo BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsAgainst at least 2 of WCE, PT, FHA, or PRN: Any of Days 29, 78, or 11370 Participants
BPZE1 Intranasal Prime, Placebo BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsBoosting achieved on Day 113 (over Day 78) against WCE7 Participants
BPZE1 Intranasal Prime, Placebo BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsAgainst at least 2 of WCE, PT, FHA, or PRN: Either Day 169 or Day 25443 Participants
BPZE1 Intranasal Prime, Placebo BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsAgainst WCE: Either Day 29 or Day 11364 Participants
Boostrix IM Prime, BPZE1 BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsAgainst at least 1 of WCE, PT, FHA, or PRN: Any of Days 29, 78, or 11333 Participants
Boostrix IM Prime, BPZE1 BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsAgainst at least 2 of WCE, PT, FHA, or PRN: Any of Days 29, 78, or 11323 Participants
Boostrix IM Prime, BPZE1 BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsAgainst at least 1 of WCE, PT, FHA, or PRN: Either Day 169 or Day 25430 Participants
Boostrix IM Prime, BPZE1 BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsAgainst WCE: Either Day 29 or Day 11321 Participants
Boostrix IM Prime, BPZE1 BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsAgainst PT, FHA, PRN: Either Day 29 or Day 1135 Participants
Boostrix IM Prime, BPZE1 BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsAgainst at least 2 of WCE, PT, FHA, or PRN: Either Day 169 or Day 25417 Participants
Boostrix IM Prime, BPZE1 BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsBoosting achieved on Day 113 (over Day 78) against WCE11 Participants
Boostrix IM Prime, Placebo BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsAgainst at least 1 of WCE, PT, FHA, or PRN: Either Day 169 or Day 25413 Participants
Boostrix IM Prime, Placebo BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsBoosting achieved on Day 113 (over Day 78) against WCE6 Participants
Boostrix IM Prime, Placebo BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsAgainst at least 2 of WCE, PT, FHA, or PRN: Either Day 169 or Day 2543 Participants
Boostrix IM Prime, Placebo BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsAgainst at least 1 of WCE, PT, FHA, or PRN: Any of Days 29, 78, or 11327 Participants
Boostrix IM Prime, Placebo BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsAgainst at least 2 of WCE, PT, FHA, or PRN: Any of Days 29, 78, or 11311 Participants
Boostrix IM Prime, Placebo BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsAgainst PT, FHA, PRN: Either Day 29 or Day 1132 Participants
Boostrix IM Prime, Placebo BoostMucosal Immunogenicity - Summary of Mucosal Absolute S-IgA/Total S-IgA Seroconversion EndpointsAgainst WCE: Either Day 29 or Day 11311 Participants
Secondary

Safety - Number of Participants With Serious AEs

Number of participants with Serious AEs collected on Day 1 through Day 84 by MedDRA classification.

Time frame: Days 1 to 84

Population: 10\^9 Safety Analysis Set. Note: Participants who were randomized to receive BPZE1 as the second vaccination (ie, revaccination/attenuated challenge) but who did not receive a second vaccination and continued in the study were placed into the BPZE1/Placebo or Boostrix/Placebo group according to first vaccine received.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Serious AEsPost procedural haemorrhage1 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Serious AEsCellulitis0 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Serious AEsBacterial sepsis0 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Serious AEsHyperglycaemia0 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Serious AEsPost procedural haemorrhage0 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Serious AEsHyperglycaemia1 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Serious AEsCellulitis1 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Serious AEsBacterial sepsis1 Participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Serious AEsPost procedural haemorrhage0 Participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Serious AEsBacterial sepsis0 Participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Serious AEsHyperglycaemia0 Participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Serious AEsCellulitis0 Participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Serious AEsCellulitis0 Participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Serious AEsBacterial sepsis0 Participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Serious AEsHyperglycaemia0 Participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Serious AEsPost procedural haemorrhage0 Participants
Secondary

Safety - Number of Participants With Serious AEs

Number of participants with Serious AEs collected on Day 114 through Day 254 by MedDRA classification.

Time frame: Days 114 to 254 (end of study)

Population: 10\^9 Safety Analysis Set. Note: Participants who were randomized to receive BPZE1 as the second vaccination (ie, revaccination/attenuated challenge) but who did not receive a second vaccination and continued in the study were placed into the BPZE1/Placebo or Boostrix/Placebo group according to first vaccine received.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Serious AEsObesity0 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Serious AEsOther0 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Serious AEsOther0 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Serious AEsObesity0 Participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Serious AEsObesity1 Participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Serious AEsOther0 Participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Serious AEsObesity0 Participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Serious AEsOther0 Participants
Secondary

Safety - Number of Participants With Serious AEs

Number of participants with Serious AEs collected on Day 85 through Day 113 by MedDRA classification.

Time frame: Days 85 to 113

Population: 10\^9 Safety Analysis Set. Note: Participants who were randomized to receive BPZE1 as the second vaccination (ie, revaccination/attenuated challenge) but who did not receive a second vaccination and continued in the study were placed into the BPZE1/Placebo or Boostrix/Placebo group according to first vaccine received.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Serious AEsOther0 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Serious AEsDiabetic metabolic decompensation0 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Serious AEsDiabetic metabolic decompensation1 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Serious AEsOther0 Participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Serious AEsOther0 Participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Serious AEsDiabetic metabolic decompensation0 Participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Serious AEsDiabetic metabolic decompensation0 Participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Serious AEsOther0 Participants
Secondary

Safety - Number of Participants With Unsolicited AEs

Number of participants with Unsolicited AEs collected Day 1 to Day 29 by Medical Dictionary for Regulatory Activities (MedDRA) classification. Threshold is greater than or equal to 5% of participants.

Time frame: Days 1 through 29

Population: 10\^9 Safety Analysis Set. Note: Participants who were randomized to receive BPZE1 as the second vaccination (ie, revaccination/attenuated challenge) but who did not receive a second vaccination and continued in the study after second vaccination were placed into the BPZE1/Placebo or Boostrix/Placebo group according to first vaccine received.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Unsolicited AEsRhinorrhoea5 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Unsolicited AEsNasal congestion5 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Unsolicited AEsSneezing6 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Unsolicited AEsHeadache5 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Unsolicited AEsNasal congestion4 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Unsolicited AEsSneezing2 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Unsolicited AEsHeadache7 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Unsolicited AEsRhinorrhoea3 Participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Unsolicited AEsSneezing2 Participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Unsolicited AEsNasal congestion3 Participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Unsolicited AEsRhinorrhoea2 Participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Unsolicited AEsHeadache0 Participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Unsolicited AEsSneezing1 Participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Unsolicited AEsHeadache1 Participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Unsolicited AEsRhinorrhoea2 Participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Unsolicited AEsNasal congestion3 Participants
Secondary

Safety - Number of Participants With Unsolicited AEs

Number of participants with Unsolicited AEs Day 85 through Day 113 by MedDRA classification. Threshold is greater than or equal to 5% of participants.

Time frame: Days 85 through 113

Population: 10\^9 Safety Analysis Set. Note: Participants who were randomized to receive BPZE1 as the second vaccination (ie, revaccination/attenuated challenge) but who did not receive a second vaccination and continued in the study were placed into the BPZE1/Placebo or Boostrix/Placebo group according to first vaccine received.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Unsolicited AEsUpper respiratory tract infection4 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSafety - Number of Participants With Unsolicited AEsNasal congestion1 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Unsolicited AEsUpper respiratory tract infection5 Participants
BPZE1 Intranasal Prime, Placebo BoostSafety - Number of Participants With Unsolicited AEsNasal congestion6 Participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Unsolicited AEsNasal congestion4 Participants
Boostrix IM Prime, BPZE1 BoostSafety - Number of Participants With Unsolicited AEsUpper respiratory tract infection0 Participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Unsolicited AEsUpper respiratory tract infection4 Participants
Boostrix IM Prime, Placebo BoostSafety - Number of Participants With Unsolicited AEsNasal congestion4 Participants
Secondary

Systemic Immunogenicity - Summary of Geometric Mean Fold Rises (GMFRs) of Systemic IgG Against Whole Cell Extract by Vaccine Group and Time Point

Systemic Immunogenicity: Summary of GMFRs of Systemic IgG Against Whole Cell Extract by Vaccine Group and Time Point - GMFRs on Day 29 and Day 85 over baseline (Day 1)

Time frame: Days 29 and 85

Population: 10\^9 Immunogenicity Analysis Set. The Day 29 and Day 85 GMFR values are for the pooled BPZE1 group (BPZE1/BPZE1 and BPZE1/placebo) and pooled Boostrix group (Boostrix/BPZE1 and Boostrix/placebo), since these Days were prior to the Day 85 challenge/boost. The number analyzed includes participants with nonmissing values.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
BPZE1 Intranasal Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Geometric Mean Fold Rises (GMFRs) of Systemic IgG Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 291.80 Ratio
BPZE1 Intranasal Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Geometric Mean Fold Rises (GMFRs) of Systemic IgG Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 851.76 Ratio
BPZE1 Intranasal Prime, Placebo BoostSystemic Immunogenicity - Summary of Geometric Mean Fold Rises (GMFRs) of Systemic IgG Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 293.06 Ratio
BPZE1 Intranasal Prime, Placebo BoostSystemic Immunogenicity - Summary of Geometric Mean Fold Rises (GMFRs) of Systemic IgG Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 852.30 Ratio
Secondary

Systemic Immunogenicity - Summary of GMFRs of Systemic IgG Against Whole Cell Extract by Vaccine Group and Time Point

Systemic Immunogenicity: Summary of GMFRs of Systemic IgG Against Whole Cell Extract by Vaccine Group and Time Point - GMFRs on Days 113, 169, and 254 over baseline (Day 1)

Time frame: Days 113, 169 and 254

Population: 10\^9 Immunogenicity Analysis Set. The number analyzed includes participants with nonmissing values. Note: Participants who were randomized to receive BPZE1 as the second vaccination (ie, revaccination/attenuated challenge) but who did not receive a second vaccination and continued in the study after second vaccination were placed into the BPZE1/Placebo or Boostrix/Placebo group according to first vaccine received.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
BPZE1 Intranasal Prime, BPZE1 BoostSystemic Immunogenicity - Summary of GMFRs of Systemic IgG Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 2541.66 Ratio
BPZE1 Intranasal Prime, BPZE1 BoostSystemic Immunogenicity - Summary of GMFRs of Systemic IgG Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 1691.85 Ratio
BPZE1 Intranasal Prime, BPZE1 BoostSystemic Immunogenicity - Summary of GMFRs of Systemic IgG Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 1132.10 Ratio
BPZE1 Intranasal Prime, Placebo BoostSystemic Immunogenicity - Summary of GMFRs of Systemic IgG Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 2541.43 Ratio
BPZE1 Intranasal Prime, Placebo BoostSystemic Immunogenicity - Summary of GMFRs of Systemic IgG Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 1691.54 Ratio
BPZE1 Intranasal Prime, Placebo BoostSystemic Immunogenicity - Summary of GMFRs of Systemic IgG Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 1131.64 Ratio
Boostrix IM Prime, BPZE1 BoostSystemic Immunogenicity - Summary of GMFRs of Systemic IgG Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 1132.73 Ratio
Boostrix IM Prime, BPZE1 BoostSystemic Immunogenicity - Summary of GMFRs of Systemic IgG Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 2541.99 Ratio
Boostrix IM Prime, BPZE1 BoostSystemic Immunogenicity - Summary of GMFRs of Systemic IgG Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 1692.32 Ratio
Boostrix IM Prime, Placebo BoostSystemic Immunogenicity - Summary of GMFRs of Systemic IgG Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 1691.62 Ratio
Boostrix IM Prime, Placebo BoostSystemic Immunogenicity - Summary of GMFRs of Systemic IgG Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 2541.37 Ratio
Boostrix IM Prime, Placebo BoostSystemic Immunogenicity - Summary of GMFRs of Systemic IgG Against Whole Cell Extract by Vaccine Group and Time PointGMFR WCE Day 1132.04 Ratio
Secondary

Systemic Immunogenicity - Summary of Systemic IgA Seroconversion Endpoints

Number of participants who achieve seroconversion (serum IgA) against 1 or more pertussis antigens (PT, FHA, PRN) on Days 29, 85, 113, 169, and/or 254. Systemic seroconversion was defined as a 2-fold increase over the baseline value or a 4-fold increase over the minimal detection limit of the assay (whenever the baseline value fell below the detection limits of the assay).

Time frame: 9 Months

Population: 10\^9 Immunogenicity Analysis Set. The number analyzed includes participants with nonmissing values. Note: Participants who were randomized to receive BPZE1 as the second vaccination (ie, revaccination/attenuated challenge) but who did not receive a second vaccination and continued in the study after second vaccination were placed into the BPZE1/Placebo or Boostrix/Placebo group according to first vaccine received.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
BPZE1 Intranasal Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsAgainst at least 1 of PT, FHA, or PRN: Any of Days 29, 85, or 11364 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsBoosting Achieved on Day 113 (over Day 85) against PT3 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsAgainst at least 2 of PT, FHA, or PRN: Each Day 29, 85, or 11325 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsAgainst PT, FHA, and PRN: Either Day 29 or Day 11323 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsAgainst at least 1 of PT, FHA, or PRN: Either day 169 or Day 25455 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsBoosting Achieved on Day 113 (over Day 85) against PRN13 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsAgainst at least 2 of PT, FHA, or PRN: Either Day 169 or Day 25441 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsBoosting Achieved on Day 113 (over Day 85) against FHA6 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsAgainst at least 2 of PT, FHA, or PRN: Any of Days 29, 85, or 11350 Participants
BPZE1 Intranasal Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsAgainst at least 2 of PT, FHA, or PRN: Each Day 29, 85, or 11328 Participants
BPZE1 Intranasal Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsAgainst at least 1 of PT, FHA, or PRN: Either day 169 or Day 25458 Participants
BPZE1 Intranasal Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsAgainst at least 2 of PT, FHA, or PRN: Any of Days 29, 85, or 11349 Participants
BPZE1 Intranasal Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsAgainst at least 2 of PT, FHA, or PRN: Either Day 169 or Day 25430 Participants
BPZE1 Intranasal Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsAgainst at least 1 of PT, FHA, or PRN: Any of Days 29, 85, or 11371 Participants
BPZE1 Intranasal Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsAgainst PT, FHA, and PRN: Either Day 29 or Day 11329 Participants
BPZE1 Intranasal Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsBoosting Achieved on Day 113 (over Day 85) against PT2 Participants
BPZE1 Intranasal Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsBoosting Achieved on Day 113 (over Day 85) against FHA4 Participants
BPZE1 Intranasal Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsBoosting Achieved on Day 113 (over Day 85) against PRN4 Participants
Boostrix IM Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsBoosting Achieved on Day 113 (over Day 85) against PT4 Participants
Boostrix IM Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsAgainst at least 2 of PT, FHA, or PRN: Each Day 29, 85, or 11314 Participants
Boostrix IM Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsAgainst at least 2 of PT, FHA, or PRN: Either Day 169 or Day 25424 Participants
Boostrix IM Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsAgainst at least 2 of PT, FHA, or PRN: Any of Days 29, 85, or 11328 Participants
Boostrix IM Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsAgainst PT, FHA, and PRN: Either Day 29 or Day 11318 Participants
Boostrix IM Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsBoosting Achieved on Day 113 (over Day 85) against PRN8 Participants
Boostrix IM Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsBoosting Achieved on Day 113 (over Day 85) against FHA3 Participants
Boostrix IM Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsAgainst at least 1 of PT, FHA, or PRN: Either day 169 or Day 25432 Participants
Boostrix IM Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsAgainst at least 1 of PT, FHA, or PRN: Any of Days 29, 85, or 11340 Participants
Boostrix IM Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsBoosting Achieved on Day 113 (over Day 85) against PT0 Participants
Boostrix IM Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsBoosting Achieved on Day 113 (over Day 85) against FHA1 Participants
Boostrix IM Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsAgainst at least 2 of PT, FHA, or PRN: Each Day 29, 85, or 11313 Participants
Boostrix IM Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsAgainst at least 1 of PT, FHA, or PRN: Either day 169 or Day 25429 Participants
Boostrix IM Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsAgainst at least 2 of PT, FHA, or PRN: Any of Days 29, 85, or 11330 Participants
Boostrix IM Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsAgainst at least 1 of PT, FHA, or PRN: Any of Days 29, 85, or 11341 Participants
Boostrix IM Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsAgainst at least 2 of PT, FHA, or PRN: Either Day 169 or Day 25414 Participants
Boostrix IM Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsAgainst PT, FHA, and PRN: Either Day 29 or Day 1139 Participants
Boostrix IM Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgA Seroconversion EndpointsBoosting Achieved on Day 113 (over Day 85) against PRN0 Participants
Secondary

Systemic Immunogenicity - Summary of Systemic IgG Seroconversion Endpoints

Number of participants who achieve seroconversion (serum IgG) against 1 or more pertussis antigens (pertussis toxin \[PT\], filamentous hemagglutinin \[FHA\], pertactin \[PRN\], or whole cell extract \[WCE\]) on Days 29, 85, 113, 169, and/or 254. Systemic seroconversion was defined as a 2-fold increase over the baseline value or a 4-fold increase over the minimal detection limit of the assay (whenever the baseline value fell below the detection limits of the assay).

Time frame: 9 months

Population: 10\^9 Immunogenicity Analysis Set. The number analyzed includes participants with nonmissing values. Note: Participants who were randomized to receive BPZE1 as the second vaccination (ie, revaccination/attenuated challenge) but who did not receive a second vaccination and continued in the study after second vaccination were placed into the BPZE1/Placebo or Boostrix/Placebo group according to first vaccine received.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
BPZE1 Intranasal Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsPT, FHA, PRN: Either Day 29 or Day 11319 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsWCE: Either Day 29 or Day 11345 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsAt least 2 of WCE, PT, FHA, OR PRN: Either Day 169 or Day Day 25440 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsAt least 1 of WCE, PT, FHA, PRN: Any of Days 29, 85, or 11363 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsAt least 2 of WCE, PT, FHA, OR PRN: Any of Days 29, 85, or 11346 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsAt least 1 of WCE, PT, FHA, PRN: Either Day 169 or Day 25454 Participants
BPZE1 Intranasal Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsBoosting Achieved on Day 113 (over Day 85) Against WCE8 Participants
BPZE1 Intranasal Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsAt least 1 of WCE, PT, FHA, PRN: Any of Days 29, 85, or 11371 Participants
BPZE1 Intranasal Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsAt least 1 of WCE, PT, FHA, PRN: Either Day 169 or Day 25459 Participants
BPZE1 Intranasal Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsWCE: Either Day 29 or Day 11341 Participants
BPZE1 Intranasal Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsPT, FHA, PRN: Either Day 29 or Day 11316 Participants
BPZE1 Intranasal Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsAt least 2 of WCE, PT, FHA, OR PRN: Any of Days 29, 85, or 11350 Participants
BPZE1 Intranasal Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsAt least 2 of WCE, PT, FHA, OR PRN: Either Day 169 or Day Day 25441 Participants
BPZE1 Intranasal Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsBoosting Achieved on Day 113 (over Day 85) Against WCE4 Participants
Boostrix IM Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsAt least 1 of WCE, PT, FHA, PRN: Any of Days 29, 85, or 11341 Participants
Boostrix IM Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsBoosting Achieved on Day 113 (over Day 85) Against WCE4 Participants
Boostrix IM Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsAt least 2 of WCE, PT, FHA, OR PRN: Any of Days 29, 85, or 11337 Participants
Boostrix IM Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsAt least 2 of WCE, PT, FHA, OR PRN: Either Day 169 or Day Day 25432 Participants
Boostrix IM Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsWCE: Either Day 29 or Day 11328 Participants
Boostrix IM Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsPT, FHA, PRN: Either Day 29 or Day 11328 Participants
Boostrix IM Prime, BPZE1 BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsAt least 1 of WCE, PT, FHA, PRN: Either Day 169 or Day 25433 Participants
Boostrix IM Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsBoosting Achieved on Day 113 (over Day 85) Against WCE2 Participants
Boostrix IM Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsPT, FHA, PRN: Either Day 29 or Day 11328 Participants
Boostrix IM Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsAt least 1 of WCE, PT, FHA, PRN: Any of Days 29, 85, or 11345 Participants
Boostrix IM Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsAt least 2 of WCE, PT, FHA, OR PRN: Any of Days 29, 85, or 11341 Participants
Boostrix IM Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsAt least 2 of WCE, PT, FHA, OR PRN: Either Day 169 or Day Day 25428 Participants
Boostrix IM Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsAt least 1 of WCE, PT, FHA, PRN: Either Day 169 or Day 25432 Participants
Boostrix IM Prime, Placebo BoostSystemic Immunogenicity - Summary of Systemic IgG Seroconversion EndpointsWCE: Either Day 29 or Day 11332 Participants

Source: ClinicalTrials.gov · Data processed: Feb 11, 2026