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Study to Evaluate the Immune Response after a Booster Dose of a Quadrivalent Meningococcal Conjugate Vaccine When Administered Alone or Concomitantly with a Licensed Meningococcal Serogroup B Vaccine,in Participants Who Received Primary Quadrivalent Meningococcal Conjugate Vaccine (MCV4)

Immunogenicity and Safety of a Booster Dose of an Investigational Quadrivalent Meningococcal Conjugate Vaccine in Adolescents and Adults

Status
Unknown
Phases
Phase 3
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2019-004461-41-Outside-EU/EEA
Enrollment
Unknown
Registered
2020-02-14
Start date
Unknown
Completion date
Unknown
Last updated
2025-01-13

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

Conditions

Healthy volunteers (active immunization against invasive meningogoccal disease (IMD) caused by Meningococcal serogroups A, C, Y and W) MedDRA version: 20.0 Level: PT Classification code 10027274 Term: Meningococcal infection System Organ Class: 10021881 - Infections and infestations

Interventions

Product Name: MenACYW conjugate vaccine Pharmaceutical Form: Solution for injection INN or Proposed INN: Neisseria Meningitidis Serogroup A Polysaccharide Conjugated to Tetanus Toxoid Carrier Protein

Sponsors

Sanofi Pasteur Inc
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: - Aged = 13 to =65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: - Participant is pregnant, or lactating, or of childbearing potential and not using an effective method of contraception or abstinence from at least 4 weeks prior to the first vaccination until at least 4 weeks after the last vaccination. To be considered of non-childbearing potential, a female must be pre-menarche, or post-menopausal for at least 1 year, or surgically sterile - Participation in the 4 weeks preceding the trial vaccination or planned participation during the present trial period in another clinical trial investigating a vaccine, drug, medical device, or medical procedure - Receipt of any vaccine in the 4 weeks (28 days) preceding the trial vaccination or planned receipt of any vaccine before Visit 3 except for influenza vaccination, which may be received at least 2 weeks before study investigational vaccine - Receipt of immune globulins, blood or blood-derived products in the past 3 months - Receipt of any meningococcal vaccine including a licensed or investigational MenACWY vaccine or MenB vaccine since participation in study MET50 or MET43 - Menveo vaccine-primed participants only (enrichment group for Group 2): receipt of more than 1 dose of Menveo vaccine or vaccination with another licensed or investigational MenACWY vaccine or with a licensed or investigational MenB vaccine - Known or suspected congenital or acquired immunodeficiency; or receipt of immunosuppressive therapy, such as anti-cancer chemotherapy or radiation therapy, within the preceding 6 months; or long-term systemic corticosteroid therapy (prednisone or equivalent for more than 2 consecutive weeks within the past 3 months) - History of meningococcal infection, confirmed either clinically, serologically, or microbiologically. - At high risk for meningococcal infection during the trial (specifically but not limited to participants with persistent complement deficiency, with anatomic or functional asplenia, or participants travelling to countries with high endemic or epidemic disease) - Known systemic hypersensitivity to any of the vaccine components, or history of a life-threatening reaction to the vaccines used in the trial or to a vaccine containing any of the same substances - Personal history of Guillain-Barré syndrome (GBS) - Personal history of an Arthus-like reaction after vaccination with a tetanus toxoid-containing vaccine within at least 10 years of the proposed study vaccination - Verbal report of thrombocytopenia, contraindicating intramuscular vaccination - Bleeding disorder, or receipt of anticoagulants in the 3 weeks preceding inclusion, contraindicating intramuscular vaccination - Current alcohol abuse or drug addiction - Chronic illness (eg, HIV, hepatitis B, hepatitis C) that, in the opinion of the investigator, is at a stage where it might interfere with trial conduct or completion - Moderate or severe acute illness/infection (according to investigator judgment) on the day of vaccination or febrile illness (temperature = 100.4°F). A prospective participant should not be included in the study until the condition has resolved or the febrile event has subsided - Receipt of oral or injectable antibiotic therapy within 72 hours prior to the first blood draw - Identified as an Investigator or employee of the Investigator or study center with direct involvement in the proposed study, or identified as an immediate family member (ie, parent, spouse, natural or adopted child) of the Investigator or employee with direct

Design outcomes

Primary

MeasureTime frame
Main Objective: To demonstrate the vaccine seroresponse sufficiency of meningococcal serogroups A, C, Y, and W following the administration of a booster dose of MenACYW conjugate vaccine in subjects who were first vaccinated with 1 dose of MenACYW conjugate vaccine or Menveo vaccine 3-6 years before the booster dose (Groups 1 and 2) ;Secondary Objective: To describe: -vac seroresponse, seroprotection: serum bactericidal assay using human complement [hSBA] titer =1:8 and Ab responses [GMTs] of meningococcal serogroups ACYW measured using hSBA in serum specimens collected 6 d ±1 after vaccination in a subset of 50 subj per gr(1,2) -vac serorespns, seroprotct and Ab resp to serogrp ACYW on D0 pre-vacc and D30 +14d after vacc with MenACYW conju vac alone (1,2) -Ab persistence of meningococcal serogrp ACYW before a booster dose in subj who received either MenACYW conju vac or Menveo vac 3-6 y earlier -Ab persistence of meningococcal serogrp ACYW in subj who received either a single dose MenACYW conju vac subj rdmzd to MET59 Gr1,3,4 or Menveo vac: subj assigned to MET59 Gr 2 as part of MET50 or MET43: subj randomized to MET59 Gr1,3 and 4 -vac seroresponse, seroprotection and Ab responses to the Ag present in MenACYW conju vac, when MenACYW conju vac is given concomitantly with MenB vac(3,4) compared to those when it is given alone (1);Primary end point(s): Percentage of participants achieving seroresponse for meningococcal serogroups A, C, Y and W: Group 1 and Group 2 ; Antibody titers against meningococcal serogroups A, C, Y, and W will be measured by hSBA Seroresponse is defined as post-vaccination titers equal or greater than (=) 1:16 for participants with pre-vaccination titers lower than (<) 1:8, or at least a 4-fold increase in post-vaccination titers for participants with pre-vaccination titers = 1:8;Timepoint(s) of evaluation of this end point: Day 30 (post-vaccination)

Secondary

MeasureTime frame
Secondary end point(s): 1 - Percentage of participants achieving seroresponse for meningococcal serogroups A, C, Y and W: Group 1 and Group 2 ; Antibody titers against meningococcal serogroups A, C, Y, and W will be measured by hSBA Seroresponse is defined as post-vaccination titers = 1:16 for participants with pre-vaccination titers < 1:8, or at least a 4-fold increase in post-vaccination titers for participants with pre-vaccination titers = 1:8 2 - Percentage of participants achieving seroprotection for meningococcal serogroups A, C, Y and W: Group 1 and Group 2 ; Antibody titers against meningococcal serogroups A, C, Y, and W will be measured by hSBA Seroprotection is defined as post-vaccination titers = 1:8 3 - Geometric Mean Titers (GMTs) of antibodies against meningococcal serogroups A, C, Y, and W: Group 1 and Group 2 ; Antibody titers against meningococcal serogroups A, C, Y, and W will be measured by hSBA 4 - Percentage of participants achieving seroresponse for meningococcal serogroups A, C, Y and W: Group 1 and Group 2 ; Antibody titers against meningococcal serogroups A, C, Y, and W will be measured by hSBA Seroresponse is defined as post-vaccination titers = 1:16 for participants with pre-vaccination titers < 1:8, or at least a 4-fold increase in post-vaccination titers for participants with pre-vaccination titers = 1:8 5 - Percentage of participants achieving seroprotection for meningococcal serogroups A, C, Y and W: Group 1 and Group 2 ; Antibody titers against meningococcal serogroups A, C, Y, and W will be measured by hSBA Seroprotection is defined as post-vaccination titers = 1:8 6 - GMTs of antibodies against meningococcal serogroups A, C, Y, and W: Group 1 and Group 2 ; Antibody titers against meningococcal serogroups A, C, Y, and W will be measured by hSBA 7 - Percentage of participants achieving seroprotection for meningococcal serogroups A, C, Y and W ; Antibody titers against meningococcal serogroups A, C, Y, and W will be measured by

Countries

United States

Contacts

Public ContactTrial Transparency Team

Sanofi Pasteur Inc

Contact-US@sanofi.com

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026