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Bordetella Pertussis, Whooping CoughPhase 2NCT05116241

Immunogenicity and Safety of BPZE1 Intranasal Pertussis Vaccine in Healthy School-age Children

A Phase 2 study testing BPZE1 pertussis vaccine and Boostrix in people with Bordetella Pertussis, Whooping Cough, run by ILiAD Biotechnologies at 16 sites in 3 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial 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 BPZE1 vaccine vs Boostrix vaccine vs both BPZE1 and Boostrix vaccines. Read more about this study

Who is it for?
Ages 6 to 17 yearsHealthy volunteers can take part
Conditions the study is for
Bordetella Pertussis, Whooping Cough
What is being tested?
BPZE1 pertussis vaccine and Boostrix
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
368 participants
Where
16 sitesin 3 countries
Study dates
11 Nov 2021to 15 May 2024
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 6 to 17 years
  • All sexes
  • Healthy volunteers accepted
  • Child

Who may be able to join

  • Male or female subject 6 to 17 years of age on Day 1.
  • Subject must provide informed consent (assent, depending on age) prior to participation in study and comply with protocol requirements.
  • If female, the subject is not pregnant or lactating. If female of childbearing potential, the subject must agree to either be heterosexually inactive or follow birth control methods per protocol from at least 21 days prior to enrollment and through 90 days following any study vaccination.
  • Subject has a stable health status, as established by physical examination, vital sign measurements, and medical history.
  • Subject (and/or legal guardian) has access to a consistent and reliable means of electronic or telephone contact, which may be in the home, workplace, school, or by personal mobile electronic device.
  • Subject is willing to refrain from routine nasal sprays (including steroid sprays) or washes for at least 7 days following any study vaccination.

Who cannot join

  • The subject has a history of whole-cell pertussis vaccination in lifetime, acellular pertussis-containing vaccination (inclusive of school vaccination programs) within 3 years prior to Day 1, documented B. pertussis infection within 3 years prior to Day 1, or a history of Td-containing vaccination (without pertussis vaccine component) within 1 month prior to Day 1.
  • Chronic significant illness actively being treated or a history of recent intervention for worsening or fluctuating symptoms (at the discretion of the investigator).
  • History of cancer (malignancy).
  • Congenital, hereditary, or acquired disease or disorder classified as autoimmune, immunodeficient, coagulopathy, hepatic, renal, neurologic, or cognitive.
  • Currently uses smoking products (including vaping and e-cigarettes) and is unwilling to refrain from use from Day 1 through Day 29 following study vaccination.
  • Subject received immunoglobulin, blood-derived products, systemic corticosteroids (at a dose of >10 mg per day for more than 10 days), or other immunosuppressant drugs within 90 days of Day 1.
Show all 11Show fewer
  • Chronic pulmonary disease requiring active medication or pulmonary therapies except exercise-induced bronchospasm, if currently well controlled, and willing to refrain from intense exercise for 7 days following study vaccination, or intermittent asthma classification who have not had an exacerbation requiring oral systemic corticosteroids in the past year; have an forced expiratory volume (FEV1) documented to be >80%; do not have restrictions in normal activity due to breathing issues; and have used a short-acting beta-agonist less than or equal to 2 days per week over the past 2 months.
  • History of oro/nasopharynx surgery (eg, adenoidectomy, tonsillectomy) within 60 days prior to Day 1.
  • Known hypersensitivity to latex or any component of any study vaccine. Specific to Boostrix: hypersensitivity to neomycin or polymyxin; hypersensitivity after previous administration of diphtheria, tetanus, or pertussis vaccines; or has experienced transient thrombocytopenia or neurological complications following an earlier immunization against diphtheria and/or tetanus.
  • Subject has routine and/or repeated contact with, or is currently living in a household with, an immunocompromised individual.
  • Subject resides in a residence where an infant less than 6 months of age resides or may reside.

Trial locations and contacts

16 sites in 3 countries.

16 sites in 3 countries

United Kingdom8 sites
  • Birmingham Children's Hospital NHS Foundation Trust

    Birmingham

  • Bradford Royal Infirmary

    Bradford

  • Bristol Royal Hospital For Children

    Bristol

  • Addenbrooke's Hospital

    Cambridge

  • Leicester Children's Hospital, Ward 14, Level 4,

    Leicester

  • St George's Healthcare NHS Trust

    London

  • Oxford Vaccine Group

    Oxford

  • University Hospital Southampton NHS Foundation Trust

    Southampton

Other trials in United Kingdom

Australia5 sites
  • University of Melbourne

    Melbourne, Victoria

  • Telethon Kids Institute

    Nedlands, Western Australia

  • Women's and Children's Hospital

    North Adelaide, South Australia

  • Sydney Children's Hospital

    Randwick, New South Wales

  • Sydney Children's Hospital

    Westmead, New South Wales

Other trials in Australia

Costa Rica3 sites
  • CSA Clinica San Augustin

    San José

  • IICIMED Instituto de Investigacion en Ciencias Medicas

    San José

  • MRI, Metropolitan Research Institute

    San José

Other trials in Costa Rica

About this study

Official title: Phase 2b Placebo-Controlled Randomized Study of BPZE1 Intranasal Pertussis Vaccine in Healthy School-Age Children to Assess Immunological Response and Safety of a Single Dose BPZE1 With/Without Coadministration of Tdap (Boostrix™)

This study evaluates the safety and immunogenicity of the BPZE1 live, attenuated pertussis vaccine, intended to prevent nasopharyngeal colonization and pertussis disease, and compares BPZE1 vaccine vs Boostrix vaccine vs both BPZE1 and Boostrix vaccines. This is a multi-center, randomized, placebo- and active-comparator-controlled study in healthy, school-age children with a 6-month safety follow-up after the first vaccination.

Read the detailed description

This multi-center, randomized, placebo- and active-comparator-controlled study evaluates the safety and immunogenicity of the BPZE1 live attenuated pertussis vaccine, intended to prevent nasopharyngeal colonization and pertussis disease. Healthy school-age children will be randomly assigned to 1 of 3 different study treatment groups to receive the intranasal BPZE1 vaccine, the intramuscular Boostrix vaccine, or both. Subjects will first receive the intranasal vaccine (BPZE1 or placebo) using a small, cone-shaped device that attaches to a syringe and sprays the vaccine into the nose. After a 10-minute waiting period, subjects will receive the intramuscular vaccine (Boostrix or placebo) in the upper arm. As this is the first study in school-age children, a staggered enrollment is planned with the first 45 subjects in the older age group of 11-17 years designated as the safety lead-in cohort. After reactogenicity results from the first 7 days after vaccination of the safety lead-in cohort are reviewed by the safety monitoring committee, the remainder of the subjects will be enrolled. Subjects who choose to take part in a small sub-study of revaccination/attenuated challenge will receive BPZE1 intranasal vaccine (open-label) 3 months after the first vaccination. Safety will be monitored for 6 months after the first vaccination.

Being tested
BPZE1 pertussis vaccine and placebo, BPZE1 pertussis vaccine and Boostrix, Placebo and Boostrix
Keywords
Bordetella pertussis (B. pertussis), Whooping Cough, BPZE1, Boostrix, Vaccine, Children, Booster, Live attenuated vaccine
Medical subject headings
Whooping Cough

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • BPZE1 pertussis vaccine and placeboBiological

    Live attenuated pertussis vaccine and placebo

  • BPZE1 pertussis vaccine and BoostrixBiological

    Live attenuated pertussis vaccine and tetanus, diphtheria, and aP vaccine

  • Placebo and BoostrixBiological

    Tetanus, diphtheria, and aP vaccine and placebo

Study groups in NCT05116241
Study groupRoleWhat they receive
BPZE1 intranasal and Placebo intramuscularExperimentalIndividual will receive an intranasal dose of BPZE1 via the mucosal atomization device and a dose of intramuscular placebo.
Receives: Biological: BPZE1 pertussis vaccine and placebo
BPZE1 intranasal and Boostrix intramuscularExperimentalIndividual will receive an intranasal dose of BPZE1 via the mucosal atomization device and a dose of intramuscular Boostrix (acellular pertussis [aP] vaccine).
Receives: Biological: BPZE1 pertussis vaccine and Boostrix
Placebo intranasal and Boostrix intramuscularActive comparatorIndividual will receive an intranasal dose of placebo via the mucosal atomization device and a dose of intramuscular Boostrix (aP vaccine comparator).
Receives: Biological: Placebo and Boostrix

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Geometric Mean Fold Rise (GMFR) of Mucosal Immunogenicity S-IgA Against Whole Cell Extract at Day 29

    Geometric mean fold rise (GMFR) of mucosal S-IgA against whole cell extract (WCE) by treatment arm (BPZE1, BPZE1 + Boostrix) at Day 29.

    Measured: Day 29

  2. Safety: Solicited Adverse Events (AEs)

    Solicited AEs (local injection site, nasal/respiratory, and systemic reactogenicity events)

    Measured: Through 7 days following first study vaccination.

Secondary outcomes (8)
  1. Serum IgG: Proportion of Subjects With Antibody Concentration ≥0.1 Immunogenicity Serum IgG for Diphtheria, Tetanus

    Serum IgG levels against diphtheria, tetanus by treatment groups (BPZE1 + Boostrix vs Boostrix)

    Measured: Day 29

  2. Serum IgG: Geometric Mean Concentration (GMC) Against Acellular Pertussis Antigens

    Serum IgG levels against acellular pertussis antigens (pertussis toxin [PT], filamentous hemagglutinin [FHA], pertactin [PRN]) by treatment groups (BPZE1 + Boostrix vs Boostrix)

    Measured: Day 29

  3. Mucosal Immunogenicity S-IgA GMR

    Induction of normalized S-IgA against WCE, PT, FHA, PRN, and any additional anti-pertussis mucosal antibodies identified during assay development (fimbriae serotype 2 and 3; FIM 2/3) using GMR

    Measured: Baseline, Day 29

  4. Mucosal Immunogenicity S-IgA GMFR

    Induction of normalized S-IgA against WCE, FHA, PRN, and any additional anti-pertussis mucosal antibodies identified during assay development (FIM 2/3) using GMFR

    Measured: Day 29

  5. Serum Immunogenicity IgA and IgG GMC

    Induction of serum immunity (IgA and IgG) against WCE, pertussis toxin (PT), FHA, PRN, and any additional anti-pertussis antibodies identified during assay development (FIM 2/3) using GMC

    Measured: Baseline, Day 29

  6. Serum Immunogenicity IgA and IgG GMFR

    Induction of serum immunity (IgA and IgG) against WCE, pertussis toxin (PT), FHA, PRN, and any additional anti-pertussis antibodies identified during assay development (FIM 2/3) using GMFR

    Measured: Baseline, Day 29

  7. Safety: Reactogenicity and AEs

    To describe reactogenicity events during the 7 days following any study vaccination (7 days after Day 1 study vaccination and 7 days after Day 85 attenuated challenge with open-label BPZE1), all AEs through 28 days following Day 1 study vaccination and Day 85 attenuated challenge with open-label BPZE1, medically-attended AEs (MAAE) through 84 days following Day 1 study vaccination and Day 85 attenuated challenge with open-label BPZE1, AEs of special interest (AESIs) and serious adverse events (SAE) through Day 169 (EOS).

    Measured: Through 7 days, 28 days, and 169 days (EOS) following any study vaccination respectively

  8. Colonization (Substudy Only)

    Proportion of subjects with positive B. pertussis by culture or polymerase chain reaction [PCR]) following re-vaccination/attenuated challenge (BPZE1, BPZE1 + Boostrix, BPZE1 and BPZE1 + Boostrix, Boostrix control)

    Measured: Day 92 or Day 99.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted10 Nov 2021
  2. Study start11 Nov 2021
  3. Primary completion15 May 2024
  4. Study completion15 May 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
368 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05116241
Sponsor's protocol ID
IB-201P
Status last verified
Oct 2025
First submitted
20 Oct 2021
Last updated
6 Nov 2025
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No

Publications

  • Faust SN, Cespedes J, Avila L, Ivankovich-Escoto G, Marshall HS, Richmond P, Nolan T, Bernatoniene J, Bandi S, Shenoy A, Rayner S, Weissfeld L, Lang W, Samal V, Goldstein P, Rubin K, Locht C, Noviello S; SUPER Trial Investigators. Immunogenicity and safety of BPZE1, an intranasal live attenuated pertussis vaccine, evaluated with and without tetanus-reduced diphtheria-acellular pertussis vaccine in healthy children aged 6-17 years: a randomised, active-controlled and placebo-controlled, phase 2b trial. Lancet Infect Dis. 2026 Oct 1:S1473-3099(26)00470-6. doi: 10.1016/S1473-3099(26)00470-6. Online ahead of print.

    PubMed 42822488

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing BPZE1 pertussis vaccine and Boostrix in people with Bordetella Pertussis, Whooping Cough, run by ILiAD Biotechnologies at 16 sites in 3 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 6 Nov 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 16 sites in United Kingdom, Australia, Costa Rica. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 6 Nov 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Geometric Mean Fold Rise (GMFR) of Mucosal Immunogenicity S-IgA Against Whole Cell Extract at Day 29 (time frame: Day 29). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05116241, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Nov 2025.

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