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Study of an Investigational Pentavalent Meningococcal ABCYW Vaccine in Adults and Adolescents

A Phase I/II, Randomized, Descriptive, Safety and Immunogenicity Study to Assess Pentavalent Meningococcal ABCYW Vaccine Formulations in Adults (18 to 25 Years of Age) and Adolescents (10 to 17 Years of Age).

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06128733
Enrollment
1215
Registered
2023-11-13
Start date
2023-10-31
Completion date
2025-08-27
Last updated
2026-01-13

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

Conditions

Meningococcal Immunisation, Healthy Volunteers

Brief summary

The purpose of VAN00010 study is to assess the safety and immunogenicity of the investigational pentavalent meningococcal ABCYW vaccine in adults and adolescents. The study duration will be up to 12 months for all participants.

Detailed description

The study duration will be approximately 12 months for all participants

Interventions

Pharmaceutical form:Suspension for injection-Route of administration:Intramuscular (IM)

Pharmaceutical form:Solution for injection in vial-Route of administration:Intramuscular (IM)

Pharmaceutical form:Suspension for injection in pre-filled syringe-Route of administration:Intramuscular (IM)

BIOLOGICALPlacebo

Pharmaceutical form:Solution for injection in vial-Route of administration:Intramuscular (IM)

BIOLOGICALMenABCYW conjugate vaccine

Pharmaceutical form: Suspension for injection Route of administration: Intramuscular (IM)

Sponsors

Sanofi Pasteur, a Sanofi Company
Lead SponsorINDUSTRY

Study design

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

Masking description

Modified double-blind: in order to maintain the blind, a placebo injection will be given and blood sample will be collected from all participants at each visit

Eligibility

Sex/Gender
ALL
Age
10 Years to 25 Years
Healthy volunteers
Yes

Inclusion criteria

- Aged 18 to 25 years or 10 to 17 years on the day of inclusion * Participants who are overtly healthy as determined by medical evaluation including medical history, physical examination, and judgment of the Investigator. * Participants who are either unvaccinated with MenACWY vaccine or have received a single previous dose of MenACWY vaccine at least 4 years prior to study enrollment

Exclusion criteria

Participants are excluded from the study if any of the following criteria apply: * Known or suspected congenital or acquired immunodeficiency * History of any Neisseria meningitidis infection * At high risk for meningococcal infection during the study * Individuals with active tuberculosis * History of Guillain-Barré syndrome * Alcohol, prescription drug, or substance abuse that, in the opinion of the Investigator, might interfere with the study conduct or completion NOTE: The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.

Design outcomes

Primary

MeasureTime frameDescription
Number of participants with immediate adverse events (AEs)Within 30 minutes after each vaccinationUnsolicited systemic AEs that occur within 30 minutes after vaccination
Number of participants with solicited injection site reactions or systemic reactionsWithin 7 days after each vaccinationPre-defined solicited injection site reactions and systemic reactions that are pre-listed in the diary cards and CRF
Number of participants with unsolicited AEsWithin 30 days after each vaccinationNon-serious AEs other than solicited reactions
Number of participants with serious adverse events (SAEs)From baseline up to 12 monthsSAEs (including adverse events of special interest \[AESIs\]) reported throughout the study
Number of participants with medically attended adverse events (MAAEs)From baseline up to 12 monthsAn MAAE is a new onset or a worsening of a condition that prompts the participant or participant's parent/legally acceptable representative to seek unplanned medical advice at a physician's office or Emergency Department
Number of participants with out-of-range biological test resultsBefore each vaccination up to 7 days after primary vaccination visits in the sentinel cohorts (the first 5 participants enrolled in each vaccine group) of each age group
hSBA meningococcal serogroups A, C, W, and Y vaccine seroresponse pre-dose and 1 month after the second dose in adolescent participantsDay 01 (pre-dose) and Day 211 (for Group 1 to 7)Seroresponse defined as post-second vaccination titers ≥ 1:16 for participants with pre-vaccination hSBA titers \< 1:4 or post-second vaccination titers ≥ 4 times the pre-vaccination titer for participants with a pre-vaccination titer more than or equal to the lower limit of quantification (LLOQ)
hSBA meningococcal serogroups A, C, W, and Y antibody titers pre-dose and 1 month after the second dose in adolescent participantsDay 211 (for Group 1 to 7)hSBA titers ≥ 1:8
Geometric mean titers (GMTs) of Antibodies against Meningococcal Serogroups A, C, W and Y pre-dose and 1 month after the second dose in adolescent participantsDay 01 (pre-dose) and Day 31 Day 211 (for Group 1 to 7)Geometric mean titers
Percentage of participants with hSBA titers more or equal to lower limit of quantification (LLOQ) against each of serogroups A, C, W, and Y in adolescent participantsDay 01 (pre-dose) Day 211 (for Group 1 to 7)
hSBA meningococcal serogroup B seroresponse pre-dose and 1 month after second dose in adolescent participantsDay 01 (pre-dose) and Day 211 (for Group 1 to 7)Seroresponse defined as a 4-fold increase in hSBA titers
Percentage of Participants With Meningococcal Antibody Titers against meningococcal serogroup B (reference MenB strains) ≥ 1:4 pre-dose 1 and 1 month post-second dose in adolescent participantsDay 01 (pre-dose) and Day 211 (for Group 1 to 7)hSBA titers ≥ 1:4 for reference MenB strains
Percentage of Participants With Meningococcal Antibody Titers against meningococcal serogroup B (reference MenB strains) ≥ 1:8 pre-dose 1 and 1 month post-second dose in adolescent participantsDay 01 (pre-dose) and Day 211 (for Group 1 to 7)hSBA titers ≥ 1:8 for reference MenB strains
Geometric mean titers (GMTs) of Antibodies against Meningococcal Serogroup B (reference MenB strains) pre-dose 1 and 1 month post-second dose in adolescent participantsDay 01 (pre-dose) and Day 211 (for Group 1 to 7)Geometric mean titers for the reference MenB strains
Percentage of participants with hSBA titers more or equal to lower limit of quantification (LLOQ) against each and all serogroups B (reference MenB strains) in adolescent participantsDay 01 (pre-dose) and Day 211 (for Group 1 to 7)

Secondary

MeasureTime frameDescription
hSBA meningococcal serogroups A, C, W, and Y antibody titers pre-dose and 1 month after the third dose in adult participantsDay 01 (pre-dose) and Day 211 (for Group 1 to 6)
Geometric mean titers (GMTs) of Antibodies against Meningococcal Serogroups A, C, W and Y pre-dose and 1 month after the third dose in adult participantsDay 01 (pre-dose) and Day 211 (for Group 1 to 6)
Percentage of participants with hSBA titers more or equal to LLOQ against each of serogroups A, C, W, and Y in adult participantsDay 01 (pre-dose) and Day 211 (for Group 1 to 6)
hSBA meningococcal serogroup B (reference MenB strains) seroresponse pre-dose and 1 month after third dose in adult participantsDay 01 (pre-dose) and Day 211 (for Group 1 to 6)
hSBA meningococcal serogroups A, C, W, and Y vaccine seroresponse at each timepointD01 (pre-dose) and D31 (post-dose 1 and pre-dose 2), D61 (post-dose 2), D181 (pre-dose 3) and D211 (post-dose 3) for adults (Group 1-6). D01 (pre-dose) and D31 (post-dose 1), D181 (pre-dose 2) and D211 (post-dose 2) for adolescents (Group 1-7)Seroresponse defined as post-vaccination titers ≥ 1:16 for participants with pre-vaccination titers \< 1:4 or post-vaccination titer ≥ 4 times the pre-vaccination titer for participants with pre-dose 1 vaccination titers more than the lower limit of quantification (LLOQ)
Percentage of Participants With Meningococcal Antibody Titers against meningococcal serogroup B (reference MenB strains) ≥ 1:8 pre-dose 1 and 1 month post-third dose in adult participantsDay 01 (pre-dose) and Day 211 (for Group 1 to 6)
Geometric mean titers (GMTs) of Antibodies against Meningococcal Serogroup B (reference MenB strains) pre-dose 1 and 1 month post-third dose in adult participantsDay 01 (pre-dose) and Day 211 (for Group 1 to 6)
Percentage of participants with hSBA titers more or equal to lower limit of quantification (LLOQ) against each and all serogroups B (reference MenB strains) in adult participantsDay 01 (pre-dose) and Day 211 (for Group 1 to 6)
Percentage of Participants With Meningococcal Antibody Titers against meningococcal serogroup B (reference MenB strains) ≥ 1:4 pre-dose 1 and 1 month post-third dose in adult participantsDay 01 (pre-dose) and Day 211 (for Group 1 to 6)
hSBA meningococcal serogroups A, C, W, and Y antibody titers at each timepointD01 (pre-dose) and D31 (post-dose 1 and pre-dose 2), D61 (post-dose 2), D181 (pre-dose 3) and D211 (post-dose 3) for adults (Group 1-6). D01 (pre-dose) and D31 (post-dose 1), D181 (pre-dose 2) and D211 (post-dose 2) for adolescents (Group 1-7)hSBA titers ≥ 1:8 post-vaccination
Geometric mean titers (GMTs) of Antibodies against Meningococcal Serogroups A, C, W and Y at each timepointD01 (pre-dose) and D31 (post-dose 1 and pre-dose 2), D61 (post-dose 2), D181 (pre-dose 3) and D211 (post-dose 3) for adults (Group 1-6). D01 (pre-dose) and D31 (post-dose 1), D181 (pre-dose 2) and D211 (post-dose 2) for adolescents (Group 1-7)Geometric mean titers
Percentage of participants with hSBA titers more or equal to LLOQ against each of serogroups A, C, W, and Y at each timepointD01 (pre-dose) and D31 (post-dose 1 and pre-dose 2), D61 (post-dose 2), D181 (pre-dose 3) and D211 (post-dose 3) for adults (Group 1-6). D01 (pre-dose) and D31 (post-dose 1), D181 (pre-dose 2) and D211 (post-dose 2) for adolescents (Group 1-7)
hSBA meningococcal serogroup B (reference MenB strains) vaccine seroresponse at each timepointD01 (pre-dose) and D31 (post-dose 1 and pre-dose 2), D61 (post-dose 2), D181 (pre-dose 3) and D211 (post-dose 3) for adults (Group 1-6). D01 (pre-dose) and D31 (post-dose 1), D181 (pre-dose 2) and D211 (post-dose 2) for adolescents (Group 1-7)Seroresponse defined as a 4-fold increase in hSBA titers
Percentage of Participants With Meningococcal Antibody Titers against meningococcal serogroup B (reference MenB strains) ≥ 1:4 at each timepointD01 (pre-dose) and D31 (post-dose 1 and pre-dose 2), D61 (post-dose 2), D181 (pre-dose 3) and D211 (post-dose 3) for adults (Group 1-6). D01 (pre-dose) and D31 (post-dose 1), D181 (pre-dose 2) and D211 (post-dose 2) for adolescents (Group 1-7)hSBA titers ≥ 1:4 for reference MenB strains
Percentage of Participants With Meningococcal Antibody Titers against meningococcal serogroup B (reference MenB strains) ≥ 1:8 at each timepointD01 (pre-dose) and D31 (post-dose 1 and pre-dose 2), D61 (post-dose 2), D181 (pre-dose 3) and D211 (post-dose 3) for adults (Group 1-6). D01 (pre-dose) and D31 (post-dose 1), D181 (pre-dose 2) and D211 (post-dose 2) for adolescents (Group 1-7)hSBA titers ≥ 1:8 reference MenB strains
Geometric mean titers (GMTs) of Antibodies against Meningococcal Serogroup B (reference MenB strains) at each timepointD01 (pre-dose) and D31 (post-dose 1 and pre-dose 2), D61 (post-dose 2), D181 (pre-dose 3) and D211 (post-dose 3) for adults (Group 1-6). D01 (pre-dose) and D31 (post-dose 1), D181 (pre-dose 2) and D211 (post-dose 2) for adolescents (Group 1-7)Geometric mean titers for reference MenB strains
Percentage of participants with hSBA composite seroresponse titers more or equal to LLOQ for reference MenB strains for each timepointD01 (pre-dose) and D31 (post-dose 1 and pre-dose 2), D61 (post-dose 2), D181 (pre-dose 3) and D211 (post-dose 3) for adults (Group 1-6). D01 (pre-dose) and D31 (post-dose 1), D181 (pre-dose 2) and D211 (post-dose 2) for adolescents (Group 1-7)
hSBA meningococcal serogroup B (reference and additional MenB strains) vaccine seroresponse pre-dose 1 and 1 month post-second and third dose in adolescent participantsDay 01 (pre-dose), Day 61 (post-dose 2) and Day 211 (post-dose 3) (for Group 1 to 6 for adults) and Day 211 (for Group 1 to 7 for adolescents)Seroresponse defined as a 4-fold increase in hSBA titers from D01 to post-vaccination for reference and additional MenB strains
Percentage of Participants With Meningococcal Antibody Titers against meningococcal serogroup B (reference and additional MenB strains) ≥ 1:4 pre-dose 1 and 1 month post-second and third dose in adolescent participantsDay 01 (pre-dose), Day 61 (post-dose 2) and Day 211 (post-dose 3) (for Group 1 to 6 for adults) and Day 211 (for Group 1 to 7 for adolescents)hSBA titers ≥ 1:4 for reference and additional MenB strains
Percentage of Participants With Meningococcal Antibody Titers against meningococcal serogroup B (reference and additional MenB strains) ≥ 1:8 pre-dose 1 and 1 month post-second and third dose in adolescent participantsDay 01 (pre-dose), Day 61 (post-dose 2) and Day 211 (post-dose 3) (for Group 1 to 6 for adults) and Day 211 (for Group 1 to 7 for adolescents)hSBA titers ≥ 1:8 for reference and additional MenB strains
Geometric mean titers (GMTs) of Antibodies against Meningococcal Serogroup B (reference and additional MenB strains) pre-dose 1 and 1 month post-second and third dose in adolescent participantsDay 01 (pre-dose), Day 61 (post-dose 2) and Day 211 (post-dose 3) (for Group 1 to 6 for adults) and Day 211 (for Group 1 to 7 for adolescents)Geometric mean titers for reference and additional MenB strains
Percentage of participants with hSBA composite seroresponse titers more or equal to LLOQ reference and additional MenB strains in adolescent participantsDay 01 (pre-dose), Day 61 (post-dose 2) and Day 211 (post-dose 3) (for Group 1 to 6 for adults) and Day 211 (for Group 1 to 7 for adolescents)
hSBA meningococcal serogroups A, C, W, and Y vaccine seroresponse 1 month after the third dose in adult participantsDay 01 (pre-dose) and Day 211 (for Group 1 to 6)Seroresponse defined as post-third vaccination titers ≥ 1:16 for participants with pre-vaccination hSBA titers \< 1:4 or post-third vaccination titers ≥ 4 times the pre-vaccination titer for participants with a pre-vaccination titer more than the lower limit of quantification (LLOQ)

Countries

Puerto Rico, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026